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* sysdeps/unix/bsd/bsd4.4/bits/socket.h (struct cmsgcred): New type.

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(CMGROUP_MAX): New macro.
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Roland McGrath 2002-03-24 03:44:57 +00:00
parent 4caf4f3c25
commit 4e6117f399
2 changed files with 27 additions and 2 deletions
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5
ChangeLog
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@ -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> 2002-03-23 Roland McGrath <roland@frob.com>
* sysdeps/posix/shm_open.c (SHMDIR): /var/run/shm -> /dev/shm * sysdeps/posix/shm_open.c (SHMDIR): /var/run/shm -> /dev/shm

24
sysdeps/unix/bsd/bsd4.4/bits/socket.h
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@ -1,5 +1,5 @@
/* System-specific socket constants and types. 4.4 BSD version. /* 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. This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or The GNU C Library is free software; you can redistribute it and/or
@ -255,10 +255,30 @@ enum
#define SCM_RIGHTS SCM_RIGHTS #define SCM_RIGHTS SCM_RIGHTS
SCM_TIMESTAMP = 0x02, /* Timestamp (struct timeval). */ SCM_TIMESTAMP = 0x02, /* Timestamp (struct timeval). */
#define SCM_TIMESTAMP SCM_TIMESTAMP #define SCM_TIMESTAMP SCM_TIMESTAMP
SCM_CREDS = 0x03 /* Process creds (strcm cmsgcred). */ SCM_CREDS = 0x03 /* Process creds (struct cmsgcred). */
#define SCM_CREDS SCM_CREDS #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 /* Protocol number used to manipulate socket-level options
with `getsockopt' and `setsockopt'. */ with `getsockopt' and `setsockopt'. */