diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/getgroups.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/getgroups.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/getgroups.c b/sysdeps/unix/sysv/linux/i386/getgroups.c index 071be4f4b7..2efe341e0d 100644 --- a/sysdeps/unix/sysv/linux/i386/getgroups.c +++ b/sysdeps/unix/sysv/linux/i386/getgroups.c @@ -23,14 +23,16 @@ #include <sysdep.h> #include <sys/syscall.h> +#include <bp-checks.h> + #include <linux/posix_types.h> #include <kernel-features.h> -extern int __syscall_getgroups(int, __kernel_gid_t *); +extern int __syscall_getgroups (int, __kernel_gid_t *__unbounded); #ifdef __NR_getgroups32 -extern int __syscall_getgroups32 (int, __kernel_gid32_t *); +extern int __syscall_getgroups32 (int, __kernel_gid32_t *__unbounded); # if __ASSUME_32BITUIDS == 0 /* This variable is shared with all files that need to check for 32bit uids. */ @@ -51,7 +53,7 @@ __getgroups (int n, gid_t *groups) else { #if __ASSUME_32BITUIDS > 0 - return INLINE_SYSCALL (getgroups32, 2, n, groups); + return INLINE_SYSCALL (getgroups32, 2, n, CHECK_N (groups, n)); #else int i, ngids; __kernel_gid_t kernel_groups[n = MIN (n, __sysconf (_SC_NGROUPS_MAX))]; @@ -61,7 +63,7 @@ __getgroups (int n, gid_t *groups) int result; int saved_errno = errno; - result = INLINE_SYSCALL (getgroups32, 2, n, groups); + result = INLINE_SYSCALL (getgroups32, 2, n, CHECK_N (groups, n)); if (result == 0 || errno != ENOSYS) return result; @@ -70,11 +72,10 @@ __getgroups (int n, gid_t *groups) } # endif /* __NR_getgroups32 */ - ngids = INLINE_SYSCALL (getgroups, 2, n, kernel_groups); + ngids = INLINE_SYSCALL (getgroups, 2, n, CHECK_N (kernel_groups, n)); if (n != 0 && ngids > 0) for (i = 0; i < ngids; i++) - groups[i] = kernel_groups[i]; - + (__ptrvalue (groups))[i] = kernel_groups[i]; return ngids; #endif } |