From:  <epg@pretzelnet.org>
Date: Sun, 8 Dec 2013 23:21:29 +0000 (-0800)
Subject: more error check
X-Git-Url: https://diplodocus.org/git/flac-archive/commitdiff_plain/dc56eee9c5ea64152683f20cab5be14b8a13c8a5?ds=sidebyside;hp=3e5ac1b35b5e96d2e2e0570f163493fca75a00e3

more error check
---

diff --git a/apic-read.cc b/apic-read.cc
index 194e340..324450e 100644
--- a/apic-read.cc
+++ b/apic-read.cc
@@ -40,18 +40,23 @@ main(int argc, char **argv)
         AttachedPictureFrame *frame = (AttachedPictureFrame *)(*it);
         TagLib::ByteVector data = frame->picture();
         int fd = open(argv[2], O_CREAT | O_WRONLY);
+        if (fd < 0) {
+            perror("open");
+            return 2;
+        }
         ssize_t size = data.size();
         ssize_t status = write(fd, data.data(), size);
         if (status < 0) {
             perror("write");
-            return 2;
+            return 3;
         }
         if (status != size) {
             fprintf(stderr, "wrote only %d bytes out of %d\n", status, size);
-            return 3;
+            return 4;
         }
         if (close(fd) < 0) {
             perror("close");
+            return 5;
         }
     }