diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/setgid.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/setgid.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/setgid.c b/sysdeps/unix/sysv/linux/i386/setgid.c index 2ab8dfda34..2a81302527 100644 --- a/sysdeps/unix/sysv/linux/i386/setgid.c +++ b/sysdeps/unix/sysv/linux/i386/setgid.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1998 Free Software Foundation, Inc. +/* Copyright (C) 1998, 2000 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 @@ -25,11 +25,41 @@ #include <linux/posix_types.h> +#include "kernel-features.h" + extern int __syscall_setgid (__kernel_gid_t); +#ifdef __NR_setgid32 +extern int __syscall_setgid32 (__kernel_gid32_t); +# if __ASSUME_32BITUIDS == 0 +/* This variable is shared with all files that need to check for 32bit + uids. */ +extern int __libc_missing_32bit_uids; +# endif +#endif /* __NR_setgid32 */ + int __setgid (gid_t gid) { +#if __ASSUME_32BITUIDS > 0 + return INLINE_SYSCALL (setgid32, 1, gid); +#else +# ifdef __NR_setgid32 + if (!__libc_missing_32bit_uids) + { + int result; + int saved_errno = errno; + + result = INLINE_SYSCALL (setgid32, 1, gid); + + if (result == 0 || errno != ENOSYS) + return result; + + __set_errno (saved_errno); + __libc_missing_32bit_uids = 1; + } +# endif /* __NR_setgid32 */ + if (gid == (gid_t) ~0 || gid != (gid_t) ((__kernel_gid_t) gid)) { @@ -38,5 +68,6 @@ __setgid (gid_t gid) } return INLINE_SYSCALL (setgid, 1, gid); +#endif } weak_alias (__setgid, setgid) |