niansa-misc/musl
1
0
Fork 0
mirror of git://git.musl-libc.org/musl synced 2025-03-06 20:48:29 +01:00
Code Issues Projects Releases Packages Wiki Activity

guard against hard links to non-ordinary-files when reading tcb shadow

Browse source
This commit is contained in:
Rich Felker 2011-02-14 21:15:07 -05:00
parent ca1aa5bae9
commit 976f42d1f1
1 changed files with 4 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
src/passwd/getspnam_r.c
View file

@ -1,5 +1,6 @@
#include <fcntl.h>
#include <unistd.h>
#include <sys/stat.h>
#include "pwf.h"
/* This implementation support Openwall-style TCB passwords in place of
@ -34,8 +35,9 @@ int getspnam_r(const char *name, struct spwd *sp, char *buf, size_t size, struct
fd = open(path, O_RDONLY|O_NOFOLLOW|O_NONBLOCK);
if (fd >= 0) {
f = fdopen(fd, "rb");
if (!f) {
struct stat st = { 0 };
errno = EINVAL;
if (fstat(fd, &st) || !S_ISREG(st.st_mode) || !(f = fdopen(fd, "rb"))) {
close(fd);
return errno;
}