From: Duncan Overbruck <mail@duncano.de>
Date: Tue, 25 Jan 2022 19:32:30 +0000 (+0100)
Subject: fpurge: Make it work with non fd based FILEs
X-Git-Tag: 0.11.6~8
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ba3c46b30fd45c8d2df310d89fd560c55a74eb4a;p=thirdparty%2Flibbsd.git

fpurge: Make it work with non fd based FILEs

Streams opened with for example open_memstream(3) will have no associated
file descriptor, and fileno(3) will fail.

Signed-off-by: Guillem Jover <guillem@hadrons.org>
---

diff --git a/src/fpurge.c b/src/fpurge.c
index 462535a..350f364 100644
--- a/src/fpurge.c
+++ b/src/fpurge.c
@@ -32,7 +32,7 @@
 int
 fpurge(FILE *fp)
 {
-	if (fp == NULL || fileno(fp) < 0) {
+	if (fp == NULL) {
 		errno = EBADF;
 		return EOF;
 	}