(__argp_error, __argp_failure): Check result of __asprintf call and don't use string...

diff --git a/argp/argp-help.c b/argp/argp-help.c
index 1921e5258e04565053aa7bbd57a987be5d7e8ccd..67018709d38709126a5351e13c990e913999f5c5 100644 (file)
--- a/argp/argp-help.c
+++ b/argp/argp-help.c
@@ -1768,7 +1768,8 @@ __argp_error (const struct argp_state *state, const char *fmt, ...)
            {
              char *buf;
 
-             __asprintf (&buf, fmt, ap);
+             if (__asprintf (&buf, fmt, ap) < 0)
+               buf = NULL;
 
              __fwprintf (stream, L"%s: %s\n",
                          state ? state->name : __argp_short_program_name (),
@@ -1846,7 +1847,8 @@ __argp_failure (const struct argp_state *state, int status, int errnum,
                {
                  char *buf;
 
-                 __asprintf (&buf, fmt, ap);
+                 if (__asprintf (&buf, fmt, ap) < 0)
+                   buf = NULL;
 
                  __fwprintf (stream, L": %s", buf);