From: Sergey Matveev <stargrave@stargrave.org>
Date: Wed, 9 Oct 2024 18:02:09 +0000 (+0300)
Subject: Replace assert with proper error printing
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=3494eaed74fe1b882993cde008f30e3e754ff6b9ecc371e9d9c95199514f4dbe;p=keks.git

Replace assert with proper error printing
---

diff --git a/cyac/cmd/print.c b/cyac/cmd/print.c
index dc89c2d..7248dd7 100644
--- a/cyac/cmd/print.c
+++ b/cyac/cmd/print.c
@@ -14,6 +14,7 @@
 // License along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include <assert.h>
+#include <errno.h>
 #include <fcntl.h>
 #include <stddef.h>
 #include <stdio.h>
@@ -220,10 +221,16 @@ main(int argc, char **argv)
     unsigned char *buf = NULL;
     {
         int fd = open(argv[1], O_RDONLY | O_CLOEXEC);
-        assert(fd != -1);
+        if (fd == -1) {
+            fprintf(stderr, "%s\n", strerror(errno));
+            return EXIT_FAILURE;
+        }
         struct stat sb;
         memset(&sb, 0, sizeof(struct stat));
-        assert(fstat(fd, &sb) == 0);
+        if (fstat(fd, &sb) != 0) {
+            fprintf(stderr, "%s\n", strerror(errno));
+            return EXIT_FAILURE;
+        }
         len = (size_t)sb.st_size;
         buf = mmap(NULL, len, PROT_READ, MAP_SHARED, fd, 0);
     }