checksrc

commit: 540e0acfd384afc753a20c8641d68c4a0f16a806
parent 73023c7944d5064569507fea039818efb1c5b705
Author: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
Date:   Wed, 24 Sep 2025 08:59:39 +0200

Add support for -d and -e options

Diffstat:
M
checksrc.c
67
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----

1 file changed, 63 insertions(+), 4 deletions(-)
diff --git a/checksrc.c b/checksrc.c
@@ -5,6 +5,7 @@
 #include <dirent.h>
 #include <errno.h>
 #include <fcntl.h>
+#include <fnmatch.h>
 #include <limits.h> // PATH_MAX
 #include <stdbool.h>
 #include <stdint.h> // uint8_t
@@ -36,6 +37,11 @@ static const char *generated[] = {
 
 bool verbose = false;
 
+#define EXCLUDE_MAX 400
+#define EXCLUDE_MAX_STR "400"
+static const char *exclude[400];
+static int exclude_len;
+
 static int
 checkfile(const char *fname)
 {
@@ -182,6 +188,15 @@ checkfile(const char *fname)
 }
 
 static int
+exclude_match(char *path)
+{
+	for(int ei = 0; ei < exclude_len; ei++)
+		if(fnmatch(exclude[ei], path, 0) == 0) return 0;
+
+	return 1;
+}
+
+static int
 checkdir(const char *dirname)
 {
 	int ret = 0;
@@ -230,6 +245,8 @@ checkdir(const char *dirname)
 					return 1;
 				}
 
+				if(exclude_match(path) == 0) continue;
+
 				int err = 0;
 				switch(dent->d_type)
 				{
@@ -239,9 +256,6 @@ checkdir(const char *dirname)
 				case DT_REG:
 					err = checkfile(path);
 					break;
-				default:
-					fprintf(stderr, "checksrc: warning: Unknown dirent type %d\n", dent->d_type);
-					continue;
 				}
 				if(err < 0) return 1;
 				if(err > 0) ret = 1 + err;
@@ -254,21 +268,66 @@ checkdir(const char *dirname)
 	return ret;
 }
 
+static void
+usage(void)
+{
+	fputs("Usage: checksrc [-v] [-d workdir] [-e excluded_path ...]\n", stderr);
+}
+
 int
 main(int argc, char *argv[])
 {
-	for(int c = -1; (c = getopt(argc, argv, "v")) != -1;)
+	char *workdir = NULL;
+
+	for(int c = -1; (c = getopt(argc, argv, "vd:e:")) != -1;)
 	{
 		switch(c)
 		{
 		case 'v':
 			verbose = true;
 			break;
+		case 'd':
+			if(workdir)
+			{
+				fputs("checksrc: error: Option -d can only be passed once\n", stderr);
+				usage();
+				return 1;
+			}
+
+			workdir = optarg;
+			break;
+		case 'e':
+			if(exclude_len == EXCLUDE_MAX)
+			{
+				fputs("checksrc: error: Can only use '-e' option " EXCLUDE_MAX_STR " times\n", stderr);
+				return 1;
+			}
+
+			exclude[exclude_len++] = optarg;
+			break;
 		}
 	}
 
 	argc -= optind;
 	argv += optind;
 
+	if(argc > 0)
+	{
+		fprintf(stderr, "checksrc: error: Expected 0 arguments, got %d\n", argc);
+		return 1;
+	}
+
+	if(workdir)
+	{
+		if(chdir(workdir) != 0)
+		{
+			fprintf(stderr,
+			        "checksrc: error: Failed changing into directory '%s': %s\n",
+			        workdir,
+			        strerror(errno));
+			return 1;
+		}
+	}
+
 	return checkdir(".");
 }