set errno when getpw*_r, getgr*_r, and getspnam_r fail

[musl] / src / passwd / getspnam_r.c

diff --git a/src/passwd/getspnam_r.c b/src/passwd/getspnam_r.c
index 9233952..e488b67 100644 (file)
--- a/src/passwd/getspnam_r.c
+++ b/src/passwd/getspnam_r.c
@@ -72,14 +72,15 @@ int getspnam_r(const char *name, struct spwd *sp, char *buf, size_t size, struct
 
        /* Disallow potentially-malicious user names */
        if (*name=='.' || strchr(name, '/') || !l)
-               return EINVAL;
+               return errno = EINVAL;
 
        /* Buffer size must at least be able to hold name, plus some.. */
-       if (size < l+100) return ERANGE;
+       if (size < l+100)
+               return errno = EINVAL;
 
        /* Protect against truncation */
        if (snprintf(path, sizeof path, "/etc/tcb/%s/shadow", name) >= sizeof path)
-               return EINVAL;
+               return errno = EINVAL;
 
        fd = open(path, O_RDONLY|O_NOFOLLOW|O_NONBLOCK|O_CLOEXEC);
        if (fd >= 0) {
@@ -112,5 +113,6 @@ int getspnam_r(const char *name, struct spwd *sp, char *buf, size_t size, struct
                break;
        }
        pthread_cleanup_pop(1);
+       if (rv) errno = rv;
        return rv;
 }