diff options
Diffstat (limited to 'misc/getusershell.c')
| -rw-r--r-- | misc/getusershell.c | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/misc/getusershell.c b/misc/getusershell.c deleted file mode 100644 index fc2c43b771..0000000000 --- a/misc/getusershell.c +++ /dev/null @@ -1,143 +0,0 @@ -/* - * Copyright (c) 1985, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)getusershell.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/param.h> -#include <sys/file.h> -#include <sys/stat.h> -#include <stdio.h> -#include <stdio_ext.h> -#include <ctype.h> -#include <stdlib.h> -#include <unistd.h> -#include <paths.h> - -/* - * Local shells should NOT be added here. They should be added in - * /etc/shells. - */ - -/* NB: we do not initialize okshells here. The initialization needs - relocations. These interfaces are used so rarely that this is not - justified. Instead explicitly initialize the array when it is - used. */ -#if 0 -static const char *const okshells[] = { _PATH_BSHELL, _PATH_CSHELL, NULL }; -#else -static const char *okshells[3]; -#endif -static char **curshell, **shells, *strings; -static char **initshells (void) __THROW; - -/* - * Get a list of shells from _PATH_SHELLS, if it exists. - */ -char * -getusershell (void) -{ - char *ret; - - if (curshell == NULL) - curshell = initshells(); - ret = *curshell; - if (ret != NULL) - curshell++; - return (ret); -} - -void -endusershell (void) -{ - - free(shells); - shells = NULL; - free(strings); - strings = NULL; - curshell = NULL; -} - -void -setusershell (void) -{ - - curshell = initshells(); -} - -static char ** -initshells (void) -{ - char **sp, *cp; - FILE *fp; - struct stat64 statb; - size_t flen; - - free(shells); - shells = NULL; - free(strings); - strings = NULL; - if ((fp = fopen(_PATH_SHELLS, "rce")) == NULL) - goto init_okshells_noclose; - if (fstat64(fileno(fp), &statb) == -1) { - init_okshells: - (void)fclose(fp); - init_okshells_noclose: - okshells[0] = _PATH_BSHELL; - okshells[1] = _PATH_CSHELL; - return (char **) okshells; - } - if (statb.st_size > ~(size_t)0 / sizeof (char *) * 3) - goto init_okshells; - flen = statb.st_size + 3; - if ((strings = malloc(flen)) == NULL) - goto init_okshells; - shells = malloc(statb.st_size / 3 * sizeof (char *)); - if (shells == NULL) { - free(strings); - strings = NULL; - goto init_okshells; - } - sp = shells; - cp = strings; - while (fgets_unlocked(cp, flen - (cp - strings), fp) != NULL) { - while (*cp != '#' && *cp != '/' && *cp != '\0') - cp++; - if (*cp == '#' || *cp == '\0' || cp[1] == '\0') - continue; - *sp++ = cp; - while (!isspace(*cp) && *cp != '#' && *cp != '\0') - cp++; - *cp++ = '\0'; - } - *sp = NULL; - (void)fclose(fp); - return (shells); -} |