1 files changed, 85 insertions, 0 deletions
diff --git a/cat.c b/cat.c
new file mode 100644
index 0000000..b27273d
--- /dev/null
+++ b/cat.c
@@ -0,0 +1,85 @@
+/*
+ * UNG's Not GNU
+ *
+ * Copyright (c) 2011-2017, Jakob Kaivo <jkk@ung.org>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#define _XOPEN_SOURCE 700
+#include <errno.h>
+#include <nl_types.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+/** operands
+INFILE [file...] The name of one or more files to print to stdout. DEF(stdin) DASH(stdin)
+**/
+
+static int cat(const char *path)
+{
+	FILE *f = stdin;
+
+	if (path && strcmp("-", path)) {
+		f = fopen(path, "r");
+	}
+
+	if (f == NULL) {
+		static char *fmt = NULL;
+		const char *def = "cat: Couldn't open %s: %s\n";
+		if (fmt == NULL) {
+			nl_catd catd = catopen("cat", NL_CAT_LOCALE);
+			fmt = catgets(catd, NL_SETD, 1, def);
+		}
+		fprintf(stderr, fmt, path ? path : "stdin", strerror(errno));
+		return 1;
+	}
+
+	int c;
+	while ((c = fgetc(f)) != EOF) {
+		fputc(c, stdout);
+	}
+
+	if (f != stdin) {
+		fclose(f);
+	}
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	int ret = 0, c = 0;
+
+	while ((c = getopt(argc, argv, "u")) != -1) {
+		switch(c) {
+		case 'u':	/** Do not buffer output **/
+			setbuf(stdout, NULL);
+			break;
+		default:
+			return 1;
+		}
+	}
+
+	do {
+		ret |= cat(argv[optind++]);
+	} while (optind < argc);
+
+	return ret;
+}
+
+/**cat en_US@color
+1 \033[31mcat: Couldn't open \033[0;41;23m%s\033[0;31m: %s\033[0m\n
+**/