diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/setregid.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/setregid.c | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/setregid.c b/sysdeps/unix/sysv/linux/i386/setregid.c index 98603bd2a2..4f00d30bc6 100644 --- a/sysdeps/unix/sysv/linux/i386/setregid.c +++ b/sysdeps/unix/sysv/linux/i386/setregid.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 @@ -24,12 +24,41 @@ #include <sys/syscall.h> #include <linux/posix_types.h> +#include "kernel-features.h" + extern int __syscall_setregid (__kernel_gid_t, __kernel_gid_t); +#ifdef __NR_setregid32 +extern int __syscall_setregid32 (__kernel_gid32_t, __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_setregid32 */ + int __setregid (gid_t rgid, gid_t egid) { +#if __ASSUME_32BITUIDS > 0 + return INLINE_SYSCALL (setregid32, 2, rgid, egid); +#else +# ifdef __NR_setregid32 + if (!__libc_missing_32bit_uids) + { + int result; + int saved_errno = errno; + + result = INLINE_SYSCALL (setregid32, 2, rgid, egid); + + if (result == 0 || errno != ENOSYS) + return result; + + __set_errno (saved_errno); + __libc_missing_32bit_uids = 1; + } +# endif /* __NR_setregid32 */ if ((rgid != (gid_t) -1 && rgid != (gid_t) (__kernel_gid_t) rgid) || (egid != (gid_t) -1 && egid != (gid_t) (__kernel_gid_t) egid)) { @@ -38,5 +67,6 @@ __setregid (gid_t rgid, gid_t egid) } return INLINE_SYSCALL (setregid, 2, rgid, egid); +#endif } weak_alias (__setregid, setregid) |