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fix error handling for pthread_sigmask 

it must return errno, not -1, and should reject invalud values for how.
This commit is contained in:
Rich Felker 2011-03-09 20:31:06 -05:00
parent 3f5420bcda
commit 500c969f05
2 changed files with 15 additions and 1 deletions
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6
src/signal/sigprocmask.c
View File

@ -1,4 +1,5 @@
#include <signal.h> #include <signal.h>
#include <errno.h>
#include "syscall.h" #include "syscall.h"
#include "libc.h" #include "libc.h"
#include "pthread_impl.h" #include "pthread_impl.h"
@ -11,6 +12,10 @@ int __libc_sigprocmask(int how, const sigset_t *set, sigset_t *old)
int __sigprocmask(int how, const sigset_t *set, sigset_t *old) int __sigprocmask(int how, const sigset_t *set, sigset_t *old)
{ {
sigset_t tmp; sigset_t tmp;
if (how > 2U) {
errno = EINVAL;
return -1;
}
/* Disallow blocking thread control signals */ /* Disallow blocking thread control signals */
if (set && how != SIG_UNBLOCK) { if (set && how != SIG_UNBLOCK) {
tmp = *set; tmp = *set;
@ -22,4 +27,3 @@ int __sigprocmask(int how, const sigset_t *set, sigset_t *old)
} }
weak_alias(__sigprocmask, sigprocmask); weak_alias(__sigprocmask, sigprocmask);
weak_alias(__sigprocmask, pthread_sigmask);

10
src/thread/pthread_sigmask.c Normal file
View File

@ -0,0 +1,10 @@
#include <signal.h>
#include <errno.h>
#include <pthread.h>
int pthread_sigmask(int how, const sigset_t *set, sigset_t *old)
{
int ret = sigprocmask(how, set, old);
if (ret) return errno;
return 0;
}