in clock_getres, check for null pointer before storing result

[musl] / src / passwd / getgrent_a.c

diff --git a/src/passwd/getgrent_a.c b/src/passwd/getgrent_a.c
index bafc9ed..7fc389d 100644 (file)
--- a/src/passwd/getgrent_a.c
+++ b/src/passwd/getgrent_a.c
@@ -18,7 +18,7 @@ int __getgrent_a(FILE *f, struct group *gr, char **line, size_t *size, char ***m
        pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
        for (;;) {
                if ((l=getline(line, size, f)) < 0) {
-                       rv = errno;
+                       rv = ferror(f) ? errno : 0;
                        free(*line);
                        *line = 0;
                        gr = 0;
@@ -48,7 +48,8 @@ int __getgrent_a(FILE *f, struct group *gr, char **line, size_t *size, char ***m
                rv = errno;
                free(*line);
                *line = 0;
-               return 0;
+               gr = 0;
+               goto end;
        }
        if (*mems) {
                mem[0][0] = mems;