ubase

commit 3669fa411773c56044b0e9027fdcc6290631a173
parent 53547b783535e2f184875f1b9ca240472b890218
Author: sin <sin@2f30.org>
Date:   Wed,  2 Jul 2014 11:51:30 +0100

More error checking for fwrite()

Diffstat:
M
login.c
 | 
4
+++-

1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/login.c b/login.c
@@ -91,7 +91,9 @@ main(int argc, char *argv[])
 	fp = fopen(UTMP_PATH, "a");
 	if (!fp)
 		weprintf("fopen %s:", UTMP_PATH);
-	fwrite(&usr, sizeof(usr), 1, fp);
+	if (fwrite(&usr, sizeof(usr), 1, fp) != 1)
+		if (ferror(fp))
+			weprintf("%s: write error:", UTMP_PATH);
 	fclose(fp);
 
 	return dologin(pw, pflag);