catpoint

commit c19639a4edb1186cdeb5655f0758506085dca7db
parent 9d56979dedbc9a3b279291ad07ab4ce277e8f5e7
Author: Christoph Lohmann <20h@r-36.net>
Date:   Sun, 20 Dec 2020 14:34:51 +0100

Handle errors on munmap. It can fail too.

Diffstat:
catpoint.c
 | 
6
++++--

1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/catpoint.c b/catpoint.c
@@ -34,8 +34,10 @@ reload(char **argv, int i)
 	struct stat statbuf;
 	int fd;
 
-	if (p[i] != NULL)
-		munmap(p[i], 0x1000);
+	if (p[i] != NULL) {
+		if (munmap(p[i], 0x1000) < 0)
+			err(1, "munmap: %s", argv[i]);
+	}
 
 	fd = open(argv[i], O_RDONLY, 0);
 	if (fd < 0)