1 files changed, 112 insertions, 0 deletions
diff --git a/iconv.c b/iconv.c
new file mode 100644
index 0000000..5b511e2
--- /dev/null
+++ b/iconv.c
@@ -0,0 +1,112 @@
+/*
+ * 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <iconv.h>
+#include <unistd.h>
+
+int convert(char *path, iconv_t conv, int skip, int suppress)
+{
+	(void)skip; (void)suppress;
+	FILE *f = stdin;
+	if (path && strcmp(path, "-")) {
+		f = fopen(path, "rb");
+	}
+
+	if (f == NULL) {
+		fprintf(stderr, "iconv: Couldn't open %s: %s\n", path ? path : "stdin", strerror(errno));
+		return 1;
+	}
+
+	while (!feof(f)) {
+		char *line = NULL;
+		size_t n = 0;
+
+		getline(&line, &n, f);
+		
+		char *out = calloc(n, 1);
+		size_t nout = n;
+
+		iconv(conv, &line, &n, &out, &nout);
+
+		printf("%s", out);
+
+		free(out);
+		free(line);
+	}
+
+	if (f != stdin) {
+		fclose(f);
+	}
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	int skipinvalid = 0;
+	int list = 0;
+	int suppress = 0;
+	char *fromcodeset = NULL;
+	char *tocodeset = NULL;
+
+	int c;
+	while ((c = getopt(argc, argv, "csf:t:l")) != -1) {
+		switch (c) {
+		case 'c':	/** skip invalid input characters **/
+			skipinvalid = 1;
+			break;
+
+		case 'f':	/** convert from [fromcodeset] **/
+			fromcodeset = optarg;
+			break;
+
+		case 'l':	/** list supported codesets **/
+			list = 1;
+			break;
+
+		case 's':	/** suppress invalid character warnings **/
+			suppress = 1;
+			break;
+
+		case 't':	/** convert to [tocodeset] **/
+			tocodeset = optarg;
+			break;
+
+		default:
+			return 1;
+		}
+	}
+
+	if (list) {
+		/* list all code sets */
+		return 0;
+	}
+
+	iconv_t conv = iconv_open(tocodeset, fromcodeset);
+
+	int r = 0;
+	do {
+		r |= convert(argv[optind++], conv, skipinvalid, suppress);
+	} while (optind < argc);
+}