1 files changed, 48 insertions, 0 deletions
diff --git a/not.c b/not.c
new file mode 100644
index 0000000..5d1170f
--- /dev/null
+++ b/not.c
@@ -0,0 +1,48 @@
+#define _POSIX_C_SOURCE 2
+#include <dirent.h>
+#include <fnmatch.h>
+#include <locale.h>
+#include <stdio.h>
+#include <unistd.h>
+
+static int matches(char *fn, int argc, char *argv[])
+{
+	for (int i = 0; i < argc; i++) {
+		if (fnmatch(argv[i], fn, 0) == 0) {
+			return 1;
+		}
+	}
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	setlocale(LC_ALL, "");
+	int c;
+	while ((c = getopt(argc, argv, "")) != -1) {
+		switch (c) {
+		default:
+			return 1;
+		}
+	}
+
+	if (argc <= optind) {
+		fprintf(stderr, "not: missing operands\n");
+		return 1;
+	}
+
+	DIR *d = opendir(".");
+	if (d == NULL) {
+		perror("not");
+		return 1;
+	}
+
+	struct dirent *de;
+	while ((de = readdir(d)) != NULL) {
+		if (!matches(de->d_name, argc - optind, argv + optind)) {
+			printf("%s\n", de->d_name);
+		}
+	}
+
+	return 0;
+}