1 files changed, 65 insertions, 0 deletions
diff --git a/tests/c-lint.sh b/tests/c-lint.sh
index e69de29..0fa0b01 100644..100755
--- a/tests/c-lint.sh
+++ b/tests/c-lint.sh
@@ -0,0 +1,65 @@
+#!/bin/sh
+set -eu
+
+awk '
+BEGIN {
+	ret = 0
+	msg = "function not on the start of the line:"
+}
+
+/^[a-zA-Z0-9_]+ .+\(/ {
+	if (ret == 0) {
+		print msg
+	}
+	printf "%s:%s:%s\n", FILENAME, FNR, $0
+	ret = 1
+}
+
+END {
+	exit ret
+}
+' "$@"
+
+
+awk '
+BEGIN {
+	ret = 0
+	static = 1
+	msg = "non-static function is not declared in a header:"
+}
+
+/^[a-zA-Z0-9_]+\(.*$/ && static == 0 {
+	split($0, line, /\(/)
+	fn_name = line[1]
+	if (fn_name != "main") {
+		header = substr(FILENAME, 0, length(FILENAME) - 2)  ".h"
+		if (system("grep -q ^\"" fn_name "\" \"" header "\"")) {
+			if (ret == 0) {
+				print msg
+			}
+			printf "%s:%s:%s\n", FILENAME, FNR, $0
+			ret = 1
+		}
+	}
+}
+
+/^static / {
+	static = 1
+}
+
+!/^static / {
+	static = 0
+}
+
+END {
+	exit ret
+}
+' "$@"
+
+
+RE='[a-z]+\(\) {'
+if grep -Eq "$RE" "$@"; then
+	echo 'Functions with no argument without explicit "void" parameter:' >&2
+	grep -En "$RE" "$@"
+	exit 1
+fi