xwrite: nop when len=0 / size=0

kspalaiologos · Mar 27, 2023 · 56c24ca · 56c24ca
1 parent bb95910
commit 56c24ca
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/main.c b/src/main.c
@@ -76,6 +76,8 @@ static void help() {
 }
 
 static void xwrite(const void * data, size_t size, size_t len, FILE * des) {
+    if (len == 0 || size == 0)
+        return;
     if (fwrite(data, size, len, des) != len) {
         fprintf(stderr, "Write error: %s\n", strerror(errno));
         exit(1);