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Diffstat (limited to 'libc/sysdeps/linux/common/ssp.c')
-rw-r--r--libc/sysdeps/linux/common/ssp.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/libc/sysdeps/linux/common/ssp.c b/libc/sysdeps/linux/common/ssp.c
index 72d8dea2e..a3470ecdc 100644
--- a/libc/sysdeps/linux/common/ssp.c
+++ b/libc/sysdeps/linux/common/ssp.c
@@ -55,6 +55,9 @@ void __guard_setup(void)
if (__guard != 0UL)
return;
+ /* Start with the "terminator canary". */
+ __guard = 0xFF0A0D00UL;
+
#ifndef __SSP_QUICK_CANARY__
#ifdef HAVE_DEV_ERANDOM
/* Random is another depth in Linux, hence an array of 3. */
@@ -75,19 +78,17 @@ void __guard_setup(void)
int fd;
#ifdef HAVE_DEV_ERANDOM
- if ((fd = open("/dev/erandom", O_RDONLY)) == (-1))
+ if ((fd = __libc_open("/dev/erandom", O_RDONLY)) == (-1))
#endif
- fd = open("/dev/urandom", O_RDONLY);
+ fd = __libc_open("/dev/urandom", O_RDONLY);
if (fd != (-1)) {
- size = read(fd, (char *) &__guard, sizeof(__guard));
- close(fd);
+ size = __libc_read(fd, (char *) &__guard, sizeof(__guard));
+ __libc_close(fd);
if (size == sizeof(__guard))
return;
}
}
#endif
- /* If sysctl was unsuccessful, use the "terminator canary". */
- __guard = 0xFF0A0D00UL;
/* Everything failed? Or we are using a weakened model of the
* terminator canary */