diff options
Diffstat (limited to 'nis/nss_nis')
| -rw-r--r-- | nis/nss_nis/nis-alias.c | 269 | ||||
| -rw-r--r-- | nis/nss_nis/nis-ethers.c | 264 | ||||
| -rw-r--r-- | nis/nss_nis/nis-grp.c | 246 | ||||
| -rw-r--r-- | nis/nss_nis/nis-hosts.c | 389 | ||||
| -rw-r--r-- | nis/nss_nis/nis-netgrp.c | 128 | ||||
| -rw-r--r-- | nis/nss_nis/nis-network.c | 292 | ||||
| -rw-r--r-- | nis/nss_nis/nis-proto.c | 246 | ||||
| -rw-r--r-- | nis/nss_nis/nis-publickey.c | 220 | ||||
| -rw-r--r-- | nis/nss_nis/nis-pwd.c | 246 | ||||
| -rw-r--r-- | nis/nss_nis/nis-rpc.c | 270 | ||||
| -rw-r--r-- | nis/nss_nis/nis-service.c | 249 | ||||
| -rw-r--r-- | nis/nss_nis/nis-spwd.c | 196 |
12 files changed, 3015 insertions, 0 deletions
diff --git a/nis/nss_nis/nis-alias.c b/nis/nss_nis/nis-alias.c new file mode 100644 index 0000000000..af83d9cd7c --- /dev/null +++ b/nis/nss_nis/nis-alias.c @@ -0,0 +1,269 @@ +/* Copyright (C) 1996 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <nss.h> +#include <ctype.h> +#include <errno.h> +#include <string.h> +#include <aliases.h> +#include <libc-lock.h> +#include <rpcsvc/yp.h> +#include <rpcsvc/ypclnt.h> + +#include "nss-nis.h" + +__libc_lock_define_initialized (static, lock) + +static bool_t new_start = 1; +static char *oldkey = NULL; +static int oldkeylen = 0; + +static int +_nss_nis_parse_aliasent (char *key, char *alias, struct aliasent *result, + char *buffer, size_t buflen) +{ + char *first_unused = buffer + strlen (alias) + 1; + size_t room_left = + buflen - (buflen % __alignof__ (char *)) - strlen (alias) - 2; + char *line; + char *cp; + + result->alias_members_len = 0; + *first_unused = '\0'; + first_unused++; + strcpy (first_unused, key); + + if (first_unused[room_left - 1] != '\0') + { + /* The line is too long for our buffer. */ + no_more_room: + __set_errno (ERANGE); + return -1; + } + + result->alias_name = first_unused; + + /* Terminate the line for any case. */ + cp = strpbrk (alias, "#\n"); + if (cp != NULL) + *cp = '\0'; + + first_unused += strlen (result->alias_name) + 1; + /* Adjust the pointer so it is aligned for + storing pointers. */ + first_unused += __alignof__ (char *) - 1; + first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *)); + result->alias_members = (char **) first_unused; + + line = alias; + + while (*line != '\0') + { + /* Skip leading blanks. */ + while (isspace (*line)) + line++; + + if (*line == '\0') + break; + + if (room_left < sizeof (char *)) + goto no_more_room; + room_left -= sizeof (char *); + result->alias_members[result->alias_members_len] = line; + + while (*line != '\0' && *line != ',') + line++; + + if (line != result->alias_members[result->alias_members_len]) + { + *line = '\0'; + line++; + result->alias_members_len++; + } + } + return result->alias_members_len == 0 ? 0 : 1; +} + +enum nss_status +_nss_nis_setaliasent (void) +{ + __libc_lock_lock (lock); + + new_start = 1; + if (oldkey != NULL) + { + free (oldkey); + oldkey = NULL; + oldkeylen = 0; + } + + __libc_lock_unlock (lock); + + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_endaliasent (void) +{ + __libc_lock_lock (lock); + + new_start = 1; + if (oldkey != NULL) + { + free (oldkey); + oldkey = NULL; + oldkeylen = 0; + } + + __libc_lock_unlock (lock); + + return NSS_STATUS_SUCCESS; +} + +static enum nss_status +internal_nis_getaliasent_r (struct aliasent *alias, char *buffer, + size_t buflen) +{ + char *domain; + char *result; + int len; + char *outkey; + int keylen; + char *p; + int parse_res; + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + alias->alias_local = 0; + + /* Get the next entry until we found a correct one. */ + do + { + enum nss_status retval; + + if (new_start) + retval = yperr2nss (yp_first (domain, "mail.aliases", + &outkey, &keylen, &result, &len)); + else + retval = yperr2nss ( yp_next (domain, "mail.aliases", oldkey, + oldkeylen, &outkey, &keylen, + &result, &len)); + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = _nss_nis_parse_aliasent (outkey, p, alias, buffer, buflen); + if (parse_res == -1) + { + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + + free (oldkey); + oldkey = outkey; + oldkeylen = keylen; + new_start = 0; + } + while (!parse_res); + + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_getaliasent_r (struct aliasent *alias, char *buffer, size_t buflen) +{ + enum nss_status status; + + __libc_lock_lock (lock); + + status = internal_nis_getaliasent_r (alias, buffer, buflen); + + __libc_lock_unlock (lock); + + return status; +} + +enum nss_status +_nss_nis_getaliasbyname_r (const char *name, struct aliasent *alias, + char *buffer, size_t buflen) +{ + enum nss_status retval; + int parse_res; + char *domain; + char *result; + int len; + char *p; + + if (name == NULL) + { + __set_errno (EINVAL); + return NSS_STATUS_UNAVAIL; + } + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + retval = yperr2nss (yp_match (domain, "mail.aliases", name, strlen (name), + &result, &len)); + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + alias->alias_local = 0; + parse_res = _nss_nis_parse_aliasent (name, p, alias, buffer, buflen); + if (parse_res == -1) + return NSS_STATUS_TRYAGAIN; + else + if (parse_res == 0) + return NSS_STATUS_NOTFOUND; + else + return NSS_STATUS_SUCCESS; +} diff --git a/nis/nss_nis/nis-ethers.c b/nis/nss_nis/nis-ethers.c new file mode 100644 index 0000000000..26449720bb --- /dev/null +++ b/nis/nss_nis/nis-ethers.c @@ -0,0 +1,264 @@ +/* Copyright (C) 1996 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <nss.h> +#include <ctype.h> +#include <errno.h> +#include <string.h> +#include <libc-lock.h> +#include <rpcsvc/yp.h> +#include <rpcsvc/ypclnt.h> +#include <netinet/if_ether.h> + +#include "nss-nis.h" + +/* Protect global state against multiple changers */ +__libc_lock_define_initialized (static, lock) + +struct ether +{ + char *e_name; + struct ether_addr e_addr; +}; + +static bool_t new_start = 1; +static char *oldkey = NULL; +static int oldkeylen = 0; + +enum nss_status +_nss_nis_setetherent (void) +{ + __libc_lock_lock (lock); + + new_start = 1; + if (oldkey != NULL) + { + free (oldkey); + oldkey = NULL; + oldkeylen = 0; + } + + __libc_lock_unlock (lock); + + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_endetherent (void) +{ + __libc_lock_lock (lock); + + new_start = 1; + if (oldkey != NULL) + { + free (oldkey); + oldkey = NULL; + oldkeylen = 0; + } + + __libc_lock_unlock (lock); + + return NSS_STATUS_SUCCESS; +} + +static enum nss_status +internal_nis_getetherent_r (struct ether *eth, char *buffer, size_t buflen) +{ + char *domain, *result, *outkey; + int len, keylen, parse_res; + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + /* Get the next entry until we found a correct one. */ + do + { + enum nss_status retval; + char *p; + + if (new_start) + retval = yperr2nss (yp_first (domain, "ethers.byaddr", + &outkey, &keylen, &result, &len)); + else + retval = yperr2nss ( yp_next (domain, "ethers.byaddr", + oldkey, oldkeylen, + &outkey, &keylen, &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = _nss_files_parse_etherent (p, eth, buffer, buflen); + if (!parse_res && errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + + free (oldkey); + oldkey = outkey; + oldkeylen = keylen; + new_start = 0; + } + while (!parse_res); + + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_getetherent_r (struct ether *result, char *buffer, size_t buflen) +{ + int status; + + __libc_lock_lock (lock); + + status = internal_nis_getetherent_r (result, buffer, buflen); + + __libc_lock_unlock (lock); + + return status; +} + +enum nss_status +_nss_nis_getethernam_r (const char *name, struct ether *eth, + char *buffer, size_t buflen) +{ + enum nss_status retval; + char *domain, *result, *p; + int len, parse_res; + + if (name == NULL) + { + __set_errno (EINVAL); + return NSS_STATUS_UNAVAIL; + } + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + retval = yperr2nss (yp_match (domain, "ethers.byname", name, + strlen (name), &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = _nss_files_parse_etherent (p, eth, buffer, buflen); + + if (!parse_res) + { + if (errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + else + return NSS_STATUS_NOTFOUND; + } + else + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_getetherbyaddr_r (struct ether_addr *addr, struct ether *eth, + char *buffer, size_t buflen) +{ + enum nss_status retval; + char *domain, *result, *p; + int len, nlen, parse_res; + char buf[33]; + + if (addr == NULL) + { + __set_errno (EINVAL); + return NSS_STATUS_UNAVAIL; + } + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + nlen = sprintf (buf, "%x:%x:%x:%x:%x:%x", + (int) addr->ether_addr_octet[0], + (int) addr->ether_addr_octet[1], + (int) addr->ether_addr_octet[2], + (int) addr->ether_addr_octet[3], + (int) addr->ether_addr_octet[4], + (int) addr->ether_addr_octet[5]); + + retval = yperr2nss (yp_match (domain, "ethers.byaddr", buf, + nlen, &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = _nss_files_parse_etherent (p, eth, buffer, buflen); + + if (!parse_res) + { + if (errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + else + return NSS_STATUS_NOTFOUND; + } + else + return NSS_STATUS_SUCCESS; +} diff --git a/nis/nss_nis/nis-grp.c b/nis/nss_nis/nis-grp.c new file mode 100644 index 0000000000..1bab862c2f --- /dev/null +++ b/nis/nss_nis/nis-grp.c @@ -0,0 +1,246 @@ +/* Copyright (C) 1996 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <nss.h> +#include <grp.h> +#include <ctype.h> +#include <errno.h> +#include <string.h> +#include <libc-lock.h> +#include <rpcsvc/yp.h> +#include <rpcsvc/ypclnt.h> + +#include "nss-nis.h" + +/* Protect global state against multiple changers */ +__libc_lock_define_initialized (static, lock) + +static bool_t new_start = 1; +static char *oldkey = NULL; +static int oldkeylen = 0; + +enum nss_status +_nss_nis_setgrent (void) +{ + __libc_lock_lock (lock); + + new_start = 1; + if (oldkey != NULL) + { + free (oldkey); + oldkey = NULL; + oldkeylen = 0; + } + + __libc_lock_unlock (lock); + + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_endgrent (void) +{ + __libc_lock_lock (lock); + + new_start = 1; + if (oldkey != NULL) + { + free (oldkey); + oldkey = NULL; + oldkeylen = 0; + } + + __libc_lock_unlock (lock); + + return NSS_STATUS_SUCCESS; +} + +static enum nss_status +internal_nis_getgrent_r (struct group *grp, char *buffer, size_t buflen) +{ + char *domain, *result, *outkey; + int len, keylen, parse_res; + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + /* Get the next entry until we found a correct one. */ + do + { + enum nss_status retval; + char *p; + + if (new_start) + retval = yperr2nss (yp_first (domain, "group.byname", + &outkey, &keylen, &result, &len)); + else + retval = yperr2nss ( yp_next (domain, "group.byname", + oldkey, oldkeylen, + &outkey, &keylen, &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = _nss_files_parse_grent (p, grp, buffer, buflen); + if (!parse_res && errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + + free (oldkey); + oldkey = outkey; + oldkeylen = keylen; + new_start = 0; + } + while (!parse_res); + + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_getgrent_r (struct group *result, char *buffer, size_t buflen) +{ + int status; + + __libc_lock_lock (lock); + + status = internal_nis_getgrent_r (result, buffer, buflen); + + __libc_lock_unlock (lock); + + return status; +} + +enum nss_status +_nss_nis_getgrnam_r (const char *name, struct group *grp, + char *buffer, size_t buflen) +{ + enum nss_status retval; + char *domain, *result, *p; + int len, parse_res; + + if (name == NULL) + { + __set_errno (EINVAL); + return NSS_STATUS_UNAVAIL; + } + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + retval = yperr2nss (yp_match (domain, "group.byname", name, + strlen (name), &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = _nss_files_parse_grent (p, grp, buffer, buflen); + + if (!parse_res) + { + if (errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + else + return NSS_STATUS_NOTFOUND; + } + else + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_getgrgid_r (gid_t gid, struct group *grp, + char *buffer, size_t buflen) +{ + enum nss_status retval; + char *domain, *result, *p; + int len, nlen, parse_res; + char buf[32]; + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + nlen = sprintf (buf, "%d", gid); + + retval = yperr2nss (yp_match (domain, "group.bygid", buf, + nlen, &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = _nss_files_parse_grent (p, grp, buffer, buflen); + + if (!parse_res) + { + if (errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + else + return NSS_STATUS_NOTFOUND; + } + else + return NSS_STATUS_SUCCESS; +} diff --git a/nis/nss_nis/nis-hosts.c b/nis/nss_nis/nis-hosts.c new file mode 100644 index 0000000000..9adce18ca3 --- /dev/null +++ b/nis/nss_nis/nis-hosts.c @@ -0,0 +1,389 @@ +/* Copyright (C) 1996 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <nss.h> +#include <ctype.h> +#include <netdb.h> +#include <string.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <resolv.h> +#include <libc-lock.h> +#include <rpcsvc/yp.h> +#include <rpcsvc/ypclnt.h> + +#include "nss-nis.h" + +/* Get implementation for some internal functions. */ +#include "../../resolv/mapv4v6addr.h" +#include "../../resolv/mapv4v6hostent.h" + +#define ENTNAME hostent +#define DATABASE "hosts" +#define NEED_H_ERRNO + +#define ENTDATA hostent_data +struct hostent_data + { + unsigned char host_addr[16]; /* IPv4 or IPv6 address. */ + char *h_addr_ptrs[2]; /* Points to that and null terminator. */ + }; + +#define TRAILING_LIST_MEMBER h_aliases +#define TRAILING_LIST_SEPARATOR_P isspace +#include "../../nss/nss_files/files-parse.c" +LINE_PARSER +("#", + { + char *addr; + + STRING_FIELD (addr, isspace, 1); + + /* Parse address. */ + if ((_res.options & RES_USE_INET6) + && inet_pton (AF_INET6, addr, entdata->host_addr) > 0) + { + result->h_addrtype = AF_INET6; + result->h_length = IN6ADDRSZ; + } + else + if (inet_pton (AF_INET, addr, entdata->host_addr) > 0) + { + if (_res.options & RES_USE_INET6) + { + map_v4v6_address ((char *) entdata->host_addr, + (char *) entdata->host_addr); + result->h_addrtype = AF_INET6; + result->h_length = IN6ADDRSZ; + } + else + { + result->h_addrtype = AF_INET; + result->h_length = INADDRSZ; + } + } + else + /* Illegal address: ignore line. */ + return 0; + + /* Store a pointer to the address in the expected form. */ + entdata->h_addr_ptrs[0] = entdata->host_addr; + entdata->h_addr_ptrs[1] = NULL; + result->h_addr_list = entdata->h_addr_ptrs; + + /* If we need the host entry in IPv6 form change it now. */ + if (_res.options & RES_USE_INET6) + { + char *bufptr = data->linebuffer; + size_t buflen = (char *) data + datalen - bufptr; + map_v4v6_hostent (result, &bufptr, &buflen); + } + + STRING_FIELD (result->h_name, isspace, 1); + } +) + +__libc_lock_define_initialized (static, lock) + +static bool_t new_start = 1; +static char *oldkey = NULL; +static int oldkeylen = 0; + +enum nss_status +_nss_nis_sethostent (void) +{ + __libc_lock_lock (lock); + + new_start = 1; + if (oldkey != NULL) + { + free (oldkey); + oldkey = NULL; + oldkeylen = 0; + } + + __libc_lock_unlock (lock); + + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_endhostent (void) +{ + __libc_lock_lock (lock); + + new_start = 1; + if (oldkey != NULL) + { + free (oldkey); + oldkey = NULL; + oldkeylen = 0; + } + + __libc_lock_unlock (lock); + + return NSS_STATUS_SUCCESS; +} + +static enum nss_status +internal_nis_gethostent_r (struct hostent *host, char *buffer, + size_t buflen, int *h_errnop) +{ + char *domain; + char *result; + int len, parse_res; + char *outkey; + int keylen; + struct parser_data *data = (void *) buffer; + size_t linebuflen = buffer + buflen - data->linebuffer; + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + if (buflen < sizeof *data + 1) + { + __set_errno (ERANGE); + *h_errnop = NETDB_INTERNAL; + return NSS_STATUS_TRYAGAIN; + } + + /* Get the next entry until we found a correct one. */ + do + { + enum nss_status retval; + char *p; + + if (new_start) + retval = yperr2nss (yp_first (domain, "hosts.byname", + &outkey, &keylen, &result, &len)); + else + retval = yperr2nss ( yp_next (domain, "hosts.byname", + oldkey, oldkeylen, + &outkey, &keylen, &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + switch (retval) + { + case NSS_STATUS_TRYAGAIN: + __set_errno (EAGAIN); + *h_errnop = TRY_AGAIN; + break; + case NSS_STATUS_NOTFOUND: + *h_errnop = HOST_NOT_FOUND; + break; + default: + *h_errnop = NO_RECOVERY; + break; + } + return retval; + } + + if (len + 1 > linebuflen) + { + free (result); + *h_errnop = NETDB_INTERNAL; + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (data->linebuffer, result, len); + data->linebuffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = parse_line (p, host, data, buflen); + if (!parse_res && errno == ERANGE) + { + *h_errnop = NETDB_INTERNAL;; + return NSS_STATUS_TRYAGAIN; + } + free (oldkey); + oldkey = outkey; + oldkeylen = keylen; + new_start = 0; + } + while (!parse_res); + + *h_errnop = NETDB_SUCCESS; + return NSS_STATUS_SUCCESS; +} + +int +_nss_nis_gethostent_r (struct hostent *host, char *buffer, size_t buflen, + int *h_errnop) +{ + int status; + + __libc_lock_lock (lock); + + status = internal_nis_gethostent_r (host, buffer, buflen, h_errnop); + + __libc_lock_unlock (lock); + + return status; +} + +enum nss_status +_nss_nis_gethostbyname_r (const char *name, struct hostent *host, + char *buffer, size_t buflen, int *h_errnop) +{ + enum nss_status retval; + char *domain, *result, *p; + int len, parse_res; + struct parser_data *data = (void *) buffer; + size_t linebuflen = buffer + buflen - data->linebuffer; + + if (name == NULL) + { + __set_errno (EINVAL); + return NSS_STATUS_UNAVAIL; + } + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + if (buflen < sizeof *data + 1) + { + *h_errnop = NETDB_INTERNAL; + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + retval = yperr2nss (yp_match (domain, "hosts.byname", name, + strlen (name), &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + { + *h_errnop = TRY_AGAIN; + __set_errno (EAGAIN); + } + if (retval == NSS_STATUS_NOTFOUND) + *h_errnop = HOST_NOT_FOUND; + return retval; + } + + if (len + 1 > linebuflen) + { + free (result); + *h_errnop = NETDB_INTERNAL; + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (data->linebuffer, result, len); + data->linebuffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = parse_line (p, host, data, buflen); + + if (!parse_res) + { + if (errno == ERANGE) + { + *h_errnop = NETDB_INTERNAL; + return NSS_STATUS_TRYAGAIN; + } + else + { + *h_errnop = HOST_NOT_FOUND; + return NSS_STATUS_NOTFOUND; + } + } + + *h_errnop = NETDB_SUCCESS; + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_gethostbyaddr_r (char *addr, int addrlen, int type, + struct hostent *host, char *buffer, size_t buflen, + int *h_errnop) +{ + enum nss_status retval; + char *domain, *result, *p; + int len, parse_res; + char *buf; + struct parser_data *data = (void *) buffer; + size_t linebuflen = buffer + buflen - data->linebuffer; + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + if (buflen < sizeof *data + 1) + { + __set_errno (ERANGE); + *h_errnop = NETDB_INTERNAL; + return NSS_STATUS_TRYAGAIN; + } + + buf = inet_ntoa (*(struct in_addr *) addr); + + retval = yperr2nss (yp_match (domain, "hosts.byaddr", buf, + strlen (buf), &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + { + *h_errnop = TRY_AGAIN; + __set_errno (EAGAIN); + } + if (retval == NSS_STATUS_NOTFOUND) + *h_errnop = HOST_NOT_FOUND; + return retval; + } + + if (len + 1 > linebuflen) + { + free (result); + __set_errno (ERANGE); + *h_errnop = NETDB_INTERNAL; + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (data->linebuffer, result, len); + data->linebuffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = parse_line (p, host, data, buflen); + + if (!parse_res) + { + if (errno == ERANGE) + { + *h_errnop = NETDB_INTERNAL; + return NSS_STATUS_TRYAGAIN; + } + else + { + *h_errnop = HOST_NOT_FOUND; + return NSS_STATUS_NOTFOUND; + } + } + + *h_errnop = NETDB_SUCCESS; + return NSS_STATUS_SUCCESS; +} diff --git a/nis/nss_nis/nis-netgrp.c b/nis/nss_nis/nis-netgrp.c new file mode 100644 index 0000000000..7609ea08ed --- /dev/null +++ b/nis/nss_nis/nis-netgrp.c @@ -0,0 +1,128 @@ +/* Copyright (C) 1996 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <nss.h> +#include <ctype.h> +#include <errno.h> +#include <libc-lock.h> +#include <netdb.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <netgroup.h> +#include <rpcsvc/yp.h> +#include <rpcsvc/ypclnt.h> + +#include "nss-nis.h" + +/* Locks the static variables in this file. */ +__libc_lock_define_initialized (static, lock) + +static char *data = NULL; +static size_t data_size = 0; +static char *cursor = NULL;; + +extern enum nss_status +_nss_netgroup_parseline (char **cursor, struct __netgrent *result, + char *buffer, size_t buflen); + +enum nss_status +_nss_nis_setnetgrent (char *group) +{ + char *domain; + char *result; + int len, group_len; + enum nss_status status; + + status = NSS_STATUS_SUCCESS; + + if (group[0] == '\0') + return NSS_STATUS_UNAVAIL; + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + __libc_lock_lock (lock); + + if (data != NULL) + { + free (data); + data = NULL; + data_size = 0; + cursor = NULL; + } + + group_len = strlen (group); + + status = yperr2nss (yp_match (domain, "netgroup", group, group_len, + &result, &len)); + if (status == NSS_STATUS_SUCCESS) + { + if (len > 0) + { + data = malloc (len + 1); + data_size = len; + cursor = strncpy (data, result, len + 1); + data[len] = '\0'; + free (result); + } + else + status = NSS_STATUS_NOTFOUND; + } + + __libc_lock_unlock (lock); + + return status; +} + + +enum nss_status +_nss_nis_endnetgrent (void) +{ + __libc_lock_lock (lock); + + if (data != NULL) + { + free (data); + data = NULL; + data_size = 0; + cursor = NULL; + } + + __libc_lock_unlock (lock); + + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_getnetgrent_r (struct __netgrent *result, char *buffer, size_t buflen) +{ + enum nss_status status; + + if (cursor == NULL) + return NSS_STATUS_NOTFOUND; + + __libc_lock_lock (lock); + + status = _nss_netgroup_parseline (&cursor, result, buffer, buflen); + + __libc_lock_unlock (lock); + + return status; +} diff --git a/nis/nss_nis/nis-network.c b/nis/nss_nis/nis-network.c new file mode 100644 index 0000000000..2795feb421 --- /dev/null +++ b/nis/nss_nis/nis-network.c @@ -0,0 +1,292 @@ +/* Copyright (C) 1996 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <nss.h> +#include <netdb.h> +#include <ctype.h> +#include <errno.h> +#include <string.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <libc-lock.h> +#include <rpcsvc/yp.h> +#include <rpcsvc/ypclnt.h> + +#include "nss-nis.h" + +__libc_lock_define_initialized (static, lock) + +static bool_t new_start = 1; +static char *oldkey = NULL; +static int oldkeylen = 0; + +enum nss_status +_nss_nis_setnetent (void) +{ + __libc_lock_lock (lock); + + new_start = 1; + if (oldkey != NULL) + { + free (oldkey); + oldkey = NULL; + oldkeylen = 0; + } + + __libc_lock_unlock (lock); + + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_endnetent (void) +{ + __libc_lock_lock (lock); + + new_start = 1; + if (oldkey != NULL) + { + free (oldkey); + oldkey = NULL; + oldkeylen = 0; + } + + __libc_lock_unlock (lock); + + return NSS_STATUS_SUCCESS; +} + +static enum nss_status +internal_nis_getnetent_r (struct netent *net, char *buffer, size_t buflen, + int *herrnop) +{ + char *domain, *result, *outkey; + int len, keylen, parse_res; + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + /* Get the next entry until we found a correct one. */ + do + { + enum nss_status retval; + char *p; + + if (new_start) + retval = yperr2nss (yp_first (domain, "networks.byname", + &outkey, &keylen, &result, &len)); + else + retval = yperr2nss ( yp_next (domain, "networks.byname", + oldkey, oldkeylen, + &outkey, &keylen, &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + { + *herrnop = NETDB_INTERNAL; + __set_errno (EAGAIN); + } + return retval; + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + *herrnop = NETDB_INTERNAL; + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = _nss_files_parse_netent (p, net, buffer, buflen); + if (!parse_res && errno == ERANGE) + { + *herrnop = NETDB_INTERNAL; + return NSS_STATUS_TRYAGAIN; + } + + free (oldkey); + oldkey = outkey; + oldkeylen = keylen; + new_start = 0; + } + while (!parse_res); + + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_getnetent_r (struct netent *net, char *buffer, size_t buflen, + int *herrnop) +{ + enum nss_status status; + + __libc_lock_lock (lock); + + status = internal_nis_getnetent_r (net, buffer, buflen, herrnop); + + __libc_lock_unlock (lock); + + return status; +} + +enum nss_status +_nss_nis_getnetbyname_r (const char *name, struct netent *net, + char *buffer, size_t buflen, int *herrnop) +{ + enum nss_status retval; + char *domain, *result, *p; + int len, parse_res; + + if (name == NULL) + { + __set_errno (EINVAL); + *herrnop = NETDB_INTERNAL; + return NSS_STATUS_UNAVAIL; + } + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + retval = yperr2nss (yp_match (domain, "networks.byname", name, + strlen (name), &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + { + __set_errno (EAGAIN); + *herrnop = NETDB_INTERNAL; + } + return retval; + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + *herrnop = NETDB_INTERNAL; + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = _nss_files_parse_netent (p, net, buffer, buflen); + + if (!parse_res) + { + *herrnop = NETDB_INTERNAL; + if (errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + else + return NSS_STATUS_NOTFOUND; + } + else + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_getnetbyaddr_r (unsigned long addr, int type, struct netent *net, + char *buffer, size_t buflen, int *herrnop) +{ + char *domain; + char *result; + int len; + char buf[256]; + int blen; + struct in_addr in; + char *p; + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + in = inet_makeaddr (addr, 0); + strcpy (buf, inet_ntoa (in)); + blen = strlen (buf); + + while (1) + { + enum nss_status retval; + int parse_res; + + retval = yperr2nss (yp_match (domain, "networks.byaddr", buf, + strlen (buf), &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_NOTFOUND) + { + if (buf[blen - 2] == '.' && buf[blen - 1] == '0') + { + /* Try again, but with trailing dot(s) + removed (one by one) */ + buf[blen - 2] = '\0'; + blen -= 2; + continue; + } + else + return NSS_STATUS_NOTFOUND; + } + else + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + *herrnop = NETDB_INTERNAL; + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = _nss_files_parse_netent (p, net, buffer, buflen); + + + if (!parse_res) + { + *herrnop = NETDB_INTERNAL; + if (errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + else + return NSS_STATUS_NOTFOUND; + } + else + return NSS_STATUS_SUCCESS; + } +} diff --git a/nis/nss_nis/nis-proto.c b/nis/nss_nis/nis-proto.c new file mode 100644 index 0000000000..f62dfb1492 --- /dev/null +++ b/nis/nss_nis/nis-proto.c @@ -0,0 +1,246 @@ +/* Copyright (C) 1996 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <nss.h> +#include <netdb.h> +#include <ctype.h> +#include <errno.h> +#include <string.h> +#include <libc-lock.h> +#include <rpcsvc/yp.h> +#include <rpcsvc/ypclnt.h> + +#include "nss-nis.h" + +__libc_lock_define_initialized (static, lock) + +static bool_t new_start = 1; +static char *oldkey = NULL; +static int oldkeylen = 0; + +enum nss_status +_nss_nis_setprotoent (void) +{ + __libc_lock_lock (lock); + + new_start = 1; + if (oldkey != NULL) + { + free (oldkey); + oldkey = NULL; + oldkeylen = 0; + } + + __libc_lock_unlock (lock); + + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_endprotoent (void) +{ + __libc_lock_lock (lock); + + new_start = 1; + if (oldkey != NULL) + { + free (oldkey); + oldkey = NULL; + oldkeylen = 0; + } + + __libc_lock_unlock (lock); + + return NSS_STATUS_SUCCESS; +} + +static enum nss_status +internal_nis_getprotoent_r (struct protoent *proto, + char *buffer, size_t buflen) +{ + char *domain, *result, *outkey; + int len, keylen, parse_res; + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + /* Get the next entry until we found a correct one. */ + do + { + enum nss_status retval; + char *p; + + if (new_start) + retval = yperr2nss (yp_first (domain, "protocols.bynumber", + &outkey, &keylen, &result, &len)); + else + retval = yperr2nss ( yp_next (domain, "protocols.bynumber", + oldkey, oldkeylen, + &outkey, &keylen, &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = _nss_files_parse_protoent (p, proto, buffer, buflen); + if (!parse_res && errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + + free (oldkey); + oldkey = outkey; + oldkeylen = keylen; + new_start = 0; + } + while (!parse_res); + + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_getprotoent_r (struct protoent *proto, char *buffer, size_t buflen) +{ + enum nss_status status; + + __libc_lock_lock (lock); + + status = internal_nis_getprotoent_r (proto, buffer, buflen); + + __libc_lock_unlock (lock); + + return status; +} + +enum nss_status +_nss_nis_getprotobyname_r (const char *name, struct protoent *proto, + char *buffer, size_t buflen) +{ + enum nss_status retval; + char *domain, *result, *p; + int len, parse_res; + + if (name == NULL) + { + __set_errno (EINVAL); + return NSS_STATUS_UNAVAIL; + } + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + retval = yperr2nss (yp_match (domain, "protocols.byname", name, + strlen (name), &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = _nss_files_parse_protoent (p, proto, buffer, buflen); + + if (!parse_res) + { + if (errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + else + return NSS_STATUS_NOTFOUND; + } + else + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_getprotobynumber_r (int number, struct protoent *proto, + char *buffer, size_t buflen) +{ + enum nss_status retval; + char *domain, *result, *p; + int len, nlen, parse_res; + char buf[32]; + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + nlen = sprintf (buf, "%d", number); + + retval = yperr2nss (yp_match (domain, "protocols.bynumber", buf, + nlen, &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = _nss_files_parse_protoent (p, proto, buffer, buflen); + + if (!parse_res) + { + if (errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + else + return NSS_STATUS_NOTFOUND; + } + else + return NSS_STATUS_SUCCESS; +} diff --git a/nis/nss_nis/nis-publickey.c b/nis/nss_nis/nis-publickey.c new file mode 100644 index 0000000000..b9eda6a742 --- /dev/null +++ b/nis/nss_nis/nis-publickey.c @@ -0,0 +1,220 @@ +/* Copyright (C) 1996 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <nss.h> +#include <ctype.h> +#include <errno.h> +#include <string.h> +#include <syslog.h> +#include <libc-lock.h> +#include <rpc/key_prot.h> +#include <rpcsvc/yp.h> +#include <rpcsvc/ypclnt.h> + +#include "nss-nis.h" + +extern int xdecrypt (char *, char *); + +/* If we found the entry, we give a SUCCESS and an empty key back. */ +enum nss_status +_nss_nis_getpublickey (const char *netname, char *pkey) +{ + enum nss_status retval; + char *domain, *result; + int len; + + pkey[0] = 0; + + if (netname == NULL) + { + __set_errno (EINVAL); + return NSS_STATUS_UNAVAIL; + } + + domain = strchr (netname, '@'); + if (!domain) + return NSS_STATUS_UNAVAIL; + domain++; + + retval = yperr2nss (yp_match (domain, "publickey.byname", netname, + strlen (netname), &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + + if (result != NULL) + { + char *p = strchr (result, ':'); + if (p != NULL) + *p = 0; + strcpy (pkey, result); + } + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_getsecretkey (const char *netname, char *skey, char *passwd) +{ + enum nss_status retval; + char buf[1024]; + char *domain, *result; + int len; + + skey[0] = 0; + + if (netname == NULL || passwd == NULL) + { + __set_errno (EINVAL); + return NSS_STATUS_UNAVAIL; + } + + domain = strchr (netname, '@'); + if (!domain) + return NSS_STATUS_UNAVAIL; + domain++; + + retval = yperr2nss (yp_match (domain, "publickey.byname", netname, + strlen (netname), &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + + if (result != NULL) + { + char *p = strchr (result, ':'); + if (p == NULL) + return NSS_STATUS_SUCCESS; + + p++; + strcpy (buf, p); + if (!xdecrypt (buf, passwd)) + return NSS_STATUS_SUCCESS; + + if (memcmp (buf, &(buf[HEXKEYBYTES]), KEYCHECKSUMSIZE) != 0) + return NSS_STATUS_SUCCESS; + + buf[HEXKEYBYTES] = 0; + strcpy (skey, buf); + } + return NSS_STATUS_SUCCESS; +} + +/* Parse uid and group information from the passed string. + The format of the string passed is uid:gid,grp,grp, ... */ +static enum nss_status +parse_netid_str (const char *s, uid_t *uidp, gid_t *gidp, int *gidlenp, + gid_t *gidlist) +{ + char *p; + + if (!s || !isdigit (*s)) + { + syslog (LOG_ERR, "netname2user: expecting uid '%s'", s); + return NSS_STATUS_NOTFOUND; /* XXX need a better error */ + } + + /* Fetch the uid */ + *uidp = (atoi (s)); + + if (*uidp == 0) + { + syslog (LOG_ERR, "netname2user: should not have uid 0"); + return NSS_STATUS_NOTFOUND; + } + + /* Now get the group list */ + p = strchr (s, ':'); + if (!p) + { + syslog (LOG_ERR, "netname2user: missing group id list in '%s'", s); + return NSS_STATUS_NOTFOUND; + } + ++p; /* skip ':' */ + if (!p || (!isdigit (*p))) + { + syslog (LOG_ERR, "netname2user: missing group id list in '%s'.", p); + return NSS_STATUS_NOTFOUND; + } + + *gidp = (atoi (p)); + + *gidlenp = 0; +#if 0 + while ((p = strchr (p, ',')) != NULL) + { + p++; + gidlist[*gidlenp++] = atoi (p); + } +#endif + + return NSS_STATUS_SUCCESS; +} + + +enum nss_status +_nss_nis_netname2user (char netname[MAXNETNAMELEN + 1], uid_t *uidp, + gid_t *gidp, int *gidlenp, gid_t *gidlist) +{ + char *domain; + int yperr; + char *lookup; + int len; + + domain = strchr (netname, '@'); + if (!domain) + return NSS_STATUS_UNAVAIL; + + /* Point past the '@' character */ + domain++; + lookup = NULL; + yperr = yp_match (domain, "netid.byname", netname, strlen (netname), + &lookup, &len); + switch (yperr) + { + case YPERR_SUCCESS: + break; /* the successful case */ + case YPERR_DOMAIN: + case YPERR_KEY: + return NSS_STATUS_NOTFOUND; + case YPERR_MAP: + default: + return NSS_STATUS_UNAVAIL; + } + if (lookup) + { + enum nss_status err; + + lookup[len] = '\0'; + err = parse_netid_str (lookup, uidp, gidp, gidlenp, gidlist); + free (lookup); + return err; + } + else + return NSS_STATUS_NOTFOUND; + + return NSS_STATUS_SUCCESS; +} diff --git a/nis/nss_nis/nis-pwd.c b/nis/nss_nis/nis-pwd.c new file mode 100644 index 0000000000..afcc7a428e --- /dev/null +++ b/nis/nss_nis/nis-pwd.c @@ -0,0 +1,246 @@ +/* Copyright (C) 1996 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <nss.h> +#include <pwd.h> +#include <ctype.h> +#include <errno.h> +#include <string.h> +#include <libc-lock.h> +#include <rpcsvc/yp.h> +#include <rpcsvc/ypclnt.h> + +#include "nss-nis.h" + +/* Protect global state against multiple changers */ +__libc_lock_define_initialized (static, lock) + +static bool_t new_start = 1; +static char *oldkey = NULL; +static int oldkeylen = 0; + +enum nss_status +_nss_nis_setpwent (void) +{ + __libc_lock_lock (lock); + + new_start = 1; + if (oldkey != NULL) + { + free (oldkey); + oldkey = NULL; + oldkeylen = 0; + } + + __libc_lock_unlock (lock); + + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_endpwent (void) +{ + __libc_lock_lock (lock); + + new_start = 1; + if (oldkey != NULL) + { + free (oldkey); + oldkey = NULL; + oldkeylen = 0; + } + + __libc_lock_unlock (lock); + + return NSS_STATUS_SUCCESS; +} + +static enum nss_status +internal_nis_getpwent_r (struct passwd *pwd, char *buffer, size_t buflen) +{ + char *domain, *result, *outkey; + int len, keylen, parse_res; + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + /* Get the next entry until we found a correct one. */ + do + { + enum nss_status retval; + char *p; + + if (new_start) + retval = yperr2nss (yp_first (domain, "passwd.byname", + &outkey, &keylen, &result, &len)); + else + retval = yperr2nss ( yp_next (domain, "passwd.byname", + oldkey, oldkeylen, + &outkey, &keylen, &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = _nss_files_parse_pwent (p, pwd, buffer, buflen); + if (!parse_res && errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + + free (oldkey); + oldkey = outkey; + oldkeylen = keylen; + new_start = 0; + } + while (!parse_res); + + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_getpwent_r (struct passwd *result, char *buffer, size_t buflen) +{ + int status; + + __libc_lock_lock (lock); + + status = internal_nis_getpwent_r (result, buffer, buflen); + + __libc_lock_unlock (lock); + + return status; +} + +enum nss_status +_nss_nis_getpwnam_r (const char *name, struct passwd *pwd, + char *buffer, size_t buflen) +{ + enum nss_status retval; + char *domain, *result, *p; + int len, parse_res; + + if (name == NULL) + { + __set_errno (EINVAL); + return NSS_STATUS_UNAVAIL; + } + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + retval = yperr2nss (yp_match (domain, "passwd.byname", name, + strlen (name), &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = _nss_files_parse_pwent (p, pwd, buffer, buflen); + + if (!parse_res) + { + if (errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + else + return NSS_STATUS_NOTFOUND; + } + else + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_getpwuid_r (uid_t uid, struct passwd *pwd, + char *buffer, size_t buflen) +{ + enum nss_status retval; + char *domain, *result, *p; + int len, nlen, parse_res; + char buf[32]; + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + nlen = sprintf (buf, "%d", uid); + + retval = yperr2nss (yp_match (domain, "passwd.byuid", buf, + nlen, &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = _nss_files_parse_pwent (p, pwd, buffer, buflen); + + if (!parse_res) + { + if (errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + else + return NSS_STATUS_NOTFOUND; + } + else + return NSS_STATUS_SUCCESS; +} diff --git a/nis/nss_nis/nis-rpc.c b/nis/nss_nis/nis-rpc.c new file mode 100644 index 0000000000..91f54be3a9 --- /dev/null +++ b/nis/nss_nis/nis-rpc.c @@ -0,0 +1,270 @@ +/* Copyright (C) 1996 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <nss.h> +#include <netdb.h> +#include <ctype.h> +#include <errno.h> +#include <string.h> +#include <libc-lock.h> +#include <rpcsvc/yp.h> +#include <rpcsvc/ypclnt.h> + +#include "nss-nis.h" + +__libc_lock_define_initialized (static, lock) + +struct intern_t +{ + bool_t new_start; + char *oldkey; + int oldkeylen; +}; +typedef struct intern_t intern_t; + +static intern_t intern = {TRUE, NULL, 0}; + +static enum nss_status +internal_nis_setrpcent (intern_t *data) +{ + data->new_start = 1; + if (data->oldkey != NULL) + { + free (data->oldkey); + data->oldkey = NULL; + data->oldkeylen = 0; + } + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_setrpcent (void) +{ + enum nss_status status; + + __libc_lock_lock (lock); + + status = internal_nis_setrpcent (&intern); + + __libc_lock_unlock (lock); + + return status; +} + +static enum nss_status +internal_nis_endrpcent (intern_t *data) +{ + data->new_start = 1; + if (data->oldkey != NULL) + { + free (data->oldkey); + data->oldkey = NULL; + data->oldkeylen = 0; + } + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_endrpcent (void) +{ + enum nss_status status; + + __libc_lock_lock (lock); + + status = internal_nis_endrpcent (&intern); + + __libc_lock_unlock (lock); + + return status; +} + +static enum nss_status +internal_nis_getrpcent_r (struct rpcent *rpc, char *buffer, size_t buflen, + intern_t *data) +{ + char *domain; + char *result; + int len, parse_res; + char *outkey; + int keylen; + char *p; + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + /* Get the next entry until we found a correct one. */ + do + { + enum nss_status retval; + + if (data->new_start) + retval = yperr2nss (yp_first (domain, "rpc.bynumber", + &outkey, &keylen, &result, &len)); + else + retval = yperr2nss ( yp_next (domain, "rpc.bynumber", + data->oldkey, data->oldkeylen, + &outkey, &keylen, &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = _nss_files_parse_rpcent (p, rpc, buffer, buflen); + if (!parse_res && errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + + free (data->oldkey); + data->oldkey = outkey; + data->oldkeylen = keylen; + data->new_start = 0; + } + while (!parse_res); + + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_getrpcent_r (struct rpcent *rpc, char *buffer, size_t buflen) +{ + enum nss_status status; + + __libc_lock_lock (lock); + + status = internal_nis_getrpcent_r (rpc, buffer, buflen, &intern); + + __libc_lock_unlock (lock); + + return status; +} + +enum nss_status +_nss_nis_getrpcbyname_r (const char *name, struct rpcent *rpc, + char *buffer, size_t buflen) +{ + intern_t data = {TRUE, NULL, 0}; + enum nss_status status; + int found; + + if (name == NULL) + { + __set_errno (EINVAL); + return NSS_STATUS_UNAVAIL; + } + + status = internal_nis_setrpcent (&data); + if (status != NSS_STATUS_SUCCESS) + return status; + + found = 0; + while (!found && + ((status = internal_nis_getrpcent_r (rpc, buffer, buflen, &data)) + == NSS_STATUS_SUCCESS)) + { + if (strcmp (rpc->r_name, name) == 0) + found = 1; + else + { + int i = 0; + + while (rpc->r_aliases[i] != NULL) + { + if (strcmp (rpc->r_aliases[i], name) == 0) + { + found = 1; + break; + } + else + ++i; + } + } + } + + internal_nis_endrpcent (&data); + + if (!found && status == NSS_STATUS_SUCCESS) + return NSS_STATUS_NOTFOUND; + else + return status; +} + +enum nss_status +_nss_nis_getrpcbynumber_r (int number, struct rpcent *rpc, + char *buffer, size_t buflen) +{ + enum nss_status retval; + char *domain, *result, *p; + int len, nlen, parse_res; + char buf[32]; + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + nlen = sprintf (buf, "%d", number); + + retval = yperr2nss (yp_match (domain, "rpc.bynumber", buf, + nlen, &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = _nss_files_parse_rpcent (p, rpc, buffer, buflen); + + if (!parse_res) + { + if (errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + else + return NSS_STATUS_NOTFOUND; + } + else + return NSS_STATUS_SUCCESS; +} diff --git a/nis/nss_nis/nis-service.c b/nis/nss_nis/nis-service.c new file mode 100644 index 0000000000..03a9fbf48e --- /dev/null +++ b/nis/nss_nis/nis-service.c @@ -0,0 +1,249 @@ +/* Copyright (C) 1996 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <nss.h> +#include <netdb.h> +#include <ctype.h> +#include <errno.h> +#include <string.h> +#include <libc-lock.h> +#include <rpcsvc/yp.h> +#include <rpcsvc/ypclnt.h> + +#include "nss-nis.h" + +__libc_lock_define_initialized (static, lock) + +struct intern_t +{ + bool_t new_start; + char *oldkey; + int oldkeylen; +}; +typedef struct intern_t intern_t; + +static intern_t intern = {TRUE, NULL, 0}; + +static enum nss_status +internal_nis_setservent (intern_t * intern) +{ + intern->new_start = 1; + if (intern->oldkey != NULL) + { + free (intern->oldkey); + intern->oldkey = NULL; + intern->oldkeylen = 0; + } + return NSS_STATUS_SUCCESS; +} +enum nss_status +_nss_nis_setservent (void) +{ + enum nss_status status; + + __libc_lock_lock (lock); + + status = internal_nis_setservent (&intern); + + __libc_lock_unlock (lock); + + return status; +} + +static enum nss_status +internal_nis_endservent (intern_t * intern) +{ + intern->new_start = 1; + if (intern->oldkey != NULL) + { + free (intern->oldkey); + intern->oldkey = NULL; + intern->oldkeylen = 0; + } + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_endservent (void) +{ + enum nss_status status; + + __libc_lock_lock (lock); + + status = internal_nis_endservent (&intern); + + __libc_lock_unlock (lock); + + return status; +} + +static enum nss_status +internal_nis_getservent_r (struct servent *serv, char *buffer, + size_t buflen, intern_t *data) +{ + char *domain; + char *result; + int len, parse_res; + char *outkey; + int keylen; + char *p; + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + /* Get the next entry until we found a correct one. */ + do + { + enum nss_status retval; + + if (data->new_start) + retval = yperr2nss (yp_first (domain, "services.byname", + &outkey, &keylen, &result, &len)); + else + retval = yperr2nss ( yp_next (domain, "services.byname", + data->oldkey, data->oldkeylen, + &outkey, &keylen, &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = _nss_files_parse_servent (p, serv, buffer, buflen); + if (!parse_res && errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + + free (data->oldkey); + data->oldkey = outkey; + data->oldkeylen = keylen; + data->new_start = 0; + } + while (!parse_res); + + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_getservent_r (struct servent *serv, char *buffer, size_t buflen) +{ + enum nss_status status; + + __libc_lock_lock (lock); + + status = internal_nis_getservent_r (serv, buffer, buflen, &intern); + + __libc_lock_unlock (lock); + + return status; +} + +enum nss_status +_nss_nis_getservbyname_r (const char *name, char *protocol, + struct servent *serv, char *buffer, size_t buflen) +{ + intern_t data = {TRUE, NULL, 0}; + enum nss_status status; + int found; + + if (name == NULL || protocol == NULL) + { + __set_errno (EINVAL); + return NSS_STATUS_UNAVAIL; + } + + status = internal_nis_setservent (&data); + if (status != NSS_STATUS_SUCCESS) + return status; + + found = 0; + while (!found && + ((status = internal_nis_getservent_r (serv, buffer, buflen, &data)) + == NSS_STATUS_SUCCESS)) + { + if (strcmp (serv->s_name, name) == 0) + { + if (strcmp (serv->s_proto, protocol) == 0) + { + found = 1; + } + } + } + + internal_nis_endservent (&data); + + if (!found && status == NSS_STATUS_SUCCESS) + return NSS_STATUS_NOTFOUND; + else + return status; +} + +enum nss_status +_nss_nis_getservbyport_r (int port, char *protocol, struct servent *serv, + char *buffer, size_t buflen) +{ + intern_t data = {TRUE, NULL, 0}; + enum nss_status status; + int found; + + if (protocol == NULL) + { + __set_errno (EINVAL); + return NSS_STATUS_UNAVAIL; + } + + status = internal_nis_setservent (&data); + if (status != NSS_STATUS_SUCCESS) + return status; + + found = 0; + while (!found && + ((status = internal_nis_getservent_r (serv, buffer, buflen, &data)) + == NSS_STATUS_SUCCESS)) + { + if (htons (serv->s_port) == port) + { + if (strcmp (serv->s_proto, protocol) == 0) + { + found = 1; + } + } + } + + internal_nis_endservent (&data); + + if (!found && status == NSS_STATUS_SUCCESS) + return NSS_STATUS_NOTFOUND; + else + return status; +} diff --git a/nis/nss_nis/nis-spwd.c b/nis/nss_nis/nis-spwd.c new file mode 100644 index 0000000000..928489245b --- /dev/null +++ b/nis/nss_nis/nis-spwd.c @@ -0,0 +1,196 @@ +/* Copyright (C) 1996 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <nss.h> +#include <ctype.h> +#include <errno.h> +#include <string.h> +#include <shadow.h> +#include <libc-lock.h> +#include <rpcsvc/yp.h> +#include <rpcsvc/ypclnt.h> + +#include "nss-nis.h" + +/* Protect global state against multiple changers */ +__libc_lock_define_initialized (static, lock) + +static bool_t new_start = 1; +static char *oldkey = NULL; +static int oldkeylen = 0; + +enum nss_status +_nss_nis_setspent (void) +{ + __libc_lock_lock (lock); + + new_start = 1; + if (oldkey != NULL) + { + free (oldkey); + oldkey = NULL; + oldkeylen = 0; + } + + __libc_lock_unlock (lock); + + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_endspent (void) +{ + __libc_lock_lock (lock); + + new_start = 1; + if (oldkey != NULL) + { + free (oldkey); + oldkey = NULL; + oldkeylen = 0; + } + + __libc_lock_unlock (lock); + + return NSS_STATUS_SUCCESS; +} + +static enum nss_status +internal_nis_getspent_r (struct spwd *sp, char *buffer, size_t buflen) +{ + char *domain, *result, *outkey; + int len, keylen, parse_res; + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + /* Get the next entry until we found a correct one. */ + do + { + enum nss_status retval; + char *p; + + if (new_start) + retval = yperr2nss (yp_first (domain, "shadow.byname", + &outkey, &keylen, &result, &len)); + else + retval = yperr2nss ( yp_next (domain, "shadow.byname", + oldkey, oldkeylen, + &outkey, &keylen, &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = _nss_files_parse_spent (p, sp, buffer, buflen); + if (!parse_res && errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + + free (oldkey); + oldkey = outkey; + oldkeylen = keylen; + new_start = 0; + } + while (!parse_res); + + return NSS_STATUS_SUCCESS; +} + +enum nss_status +_nss_nis_getspent_r (struct spwd *result, char *buffer, size_t buflen) +{ + int status; + + __libc_lock_lock (lock); + + status = internal_nis_getspent_r (result, buffer, buflen); + + __libc_lock_unlock (lock); + + return status; +} + +enum nss_status +_nss_nis_getspnam_r (const char *name, struct spwd *sp, + char *buffer, size_t buflen) +{ + enum nss_status retval; + char *domain, *result, *p; + int len, parse_res; + + if (name == NULL) + { + __set_errno (EINVAL); + return NSS_STATUS_UNAVAIL; + } + + if (yp_get_default_domain (&domain)) + return NSS_STATUS_UNAVAIL; + + retval = yperr2nss (yp_match (domain, "shadow.byname", name, + strlen (name), &result, &len)); + + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + __set_errno (EAGAIN); + return retval; + } + + if (len + 1 > buflen) + { + free (result); + __set_errno (ERANGE); + return NSS_STATUS_TRYAGAIN; + } + + p = strncpy (buffer, result, len); + buffer[len] = '\0'; + while (isspace (*p)) + ++p; + free (result); + + parse_res = _nss_files_parse_spent (p, sp, buffer, buflen); + + if (!parse_res) + { + if (errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + else + return NSS_STATUS_NOTFOUND; + } + else + return NSS_STATUS_SUCCESS; +} |