diff options
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | sysdeps/unix/bsd/bsd4.4/bits/socket.h | 24 |
2 files changed, 27 insertions, 2 deletions
@@ -1,3 +1,8 @@ +2002-03-18 Roland McGrath <roland@frob.com> + + * sysdeps/unix/bsd/bsd4.4/bits/socket.h (struct cmsgcred): New type. + (CMGROUP_MAX): New macro. + 2002-03-23 Roland McGrath <roland@frob.com> * sysdeps/posix/shm_open.c (SHMDIR): /var/run/shm -> /dev/shm diff --git a/sysdeps/unix/bsd/bsd4.4/bits/socket.h b/sysdeps/unix/bsd/bsd4.4/bits/socket.h index 8d442aadd4..40131d2e6b 100644 --- a/sysdeps/unix/bsd/bsd4.4/bits/socket.h +++ b/sysdeps/unix/bsd/bsd4.4/bits/socket.h @@ -1,5 +1,5 @@ /* System-specific socket constants and types. 4.4 BSD version. - Copyright (C) 1991,92,1994-1999,2000,2001 Free Software Foundation, Inc. + Copyright (C) 1991,92,1994-1999,2000,01,02 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -255,10 +255,30 @@ enum #define SCM_RIGHTS SCM_RIGHTS SCM_TIMESTAMP = 0x02, /* Timestamp (struct timeval). */ #define SCM_TIMESTAMP SCM_TIMESTAMP - SCM_CREDS = 0x03 /* Process creds (strcm cmsgcred). */ + SCM_CREDS = 0x03 /* Process creds (struct cmsgcred). */ #define SCM_CREDS SCM_CREDS }; +/* Unfortunately, BSD practice dictates this structure be of fixed size. + If there are more than CMGROUP_MAX groups, the list is truncated. + (On GNU systems, the `cmcred_euid' field is just the first in the + list of effective UIDs.) */ +#define CMGROUP_MAX 16 + +/* Structure delivered by SCM_CREDS. This describes the identity of the + sender of the data simultaneously received on the socket. By BSD + convention, this is included only when a sender on a AF_LOCAL socket + sends cmsg data of this type and size; the sender's structure is + ignored, and the system fills in the various IDs of the sender process. */ +struct cmsgcred + { + __pid_t cmcred_pid; + __uid_t cmcred_uid; + __uid_t cmcred_euid; + __gid_t cmcred_gid; + int cmcred_ngroups; + __gid_t cmcred_groups[CMGROUP_MAX]; + }; /* Protocol number used to manipulate socket-level options with `getsockopt' and `setsockopt'. */ |