perfests/{recv,send}-zeros: add sanity checks

PARSENUM already ensures that (buflen > 0), but it's difficult for static analysis programs to handle parsenum.h. Reported by: clang-tidy
Tarsnap · Aug 24, 2022 · c87a40b · c87a40b
1 parent b1ff4e8
commit c87a40b
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Showing 2 changed files with 11 additions and 1 deletion.
diff --git a/perftests/recv-zeros/main.c b/perftests/recv-zeros/main.c
@@ -37,6 +37,12 @@ main(int argc, char ** argv)
 		goto err0;
 	}
 
+	/* Sanity check. */
+	if (buflen <= 0) {
+		warnp("Can't have a buffer length <= 0!");
+		goto err0;
+	}
+
 	/* Allocate buffer. */
 	if ((buffer = malloc((size_t)buflen)) == NULL) {
 		warnp("malloc");

diff --git a/perftests/send-zeros/main.c b/perftests/send-zeros/main.c
@@ -47,7 +47,11 @@ main(int argc, char ** argv)
 		goto err0;
 	}
 
-	/* Sanity check */
+	/* Sanity check. */
+	if (buflen <= 0) {
+		warnp("Can't have a buffer length <= 0!");
+		goto err0;
+	}
 	if (count == 0) {
 		warnp("Can't send 0 blocks!");
 		goto err0;