diff options
Diffstat (limited to 'sysdeps/unix/sysv')
| -rw-r--r-- | sysdeps/unix/sysv/linux/readonly-area.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/readonly-area.c b/sysdeps/unix/sysv/linux/readonly-area.c index ce5321bcef..3db90023bf 100644 --- a/sysdeps/unix/sysv/linux/readonly-area.c +++ b/sysdeps/unix/sysv/linux/readonly-area.c @@ -33,7 +33,10 @@ __readonly_area (const char *ptr, size_t size) FILE *fp = fopen ("/proc/self/maps", "rc"); if (fp == NULL) - return -1; + /* We don't know. Returning 1 here means that programs using %n + and -D_FORTIFY_SOURCE=2 will work even when /proc is not mounted, + but will allow %n even in writable areas. */ + return 1; /* We need no locking. */ __fsetlocking (fp, FSETLOCKING_BYCALLER); |