From 85224dd4982ba22f448e8cc1319bb3252b2a6671 Mon Sep 17 00:00:00 2001
From: Felix Janda <felix.janda@posteo.de>
Date: Sun, 13 Apr 2014 13:12:45 -0500
Subject: iconv is actually something I'm missing on my current musl based
system. Attached is a simple version using the libc's iconv.
---
toys/pending/iconv.c | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 67 insertions(+)
create mode 100644 toys/pending/iconv.c
diff --git a/toys/pending/iconv.c b/toys/pending/iconv.c
new file mode 100644
index 00000000..d9f28176
--- /dev/null
+++ b/toys/pending/iconv.c
@@ -0,0 +1,67 @@
+/* iconv.c - Convert character encoding
+ *
+ * Copyright 2014 Felix Janda <felix.janda@posteo.de>
+ *
+ * See http://pubs.opengroup.org/onlinepubs/9699919799/utilities/
+
+USE_ICONV(NEWTOY(iconv, "t:f:", TOYFLAG_USR|TOYFLAG_BIN))
+
+config ICONV
+ bool "iconv"
+ default n
+ help
+ usage: iconv [-f FROM] [-t TO] [FILE...]
+
+ Convert character encoding of files.
+
+ -f convert from (default utf8)
+ -t convert to (default utf8)
+
+*/
+
+#define FOR_iconv
+#include "toys.h"
+#include <iconv.h>
+
+GLOBALS(
+ char *from;
+ char *to;
+)
+
+iconv_t ic; // Can't be put into GLOBALS because iconv_t is defined in iconv.h
+
+static void do_iconv(int fd, char *name)
+{
+ size_t inleft = 0, outleft = 2048;
+ char *in = toybuf, *out = toybuf + 2048;
+
+ while (1) {
+ if (!inleft || (errno == EINVAL)) {
+ memmove(in, toybuf, inleft);
+ if (!(inleft += read(fd, toybuf + inleft, 2048 - inleft))) {
+ xwrite(1, toybuf + 2048, 2048 - outleft);
+ break;
+ }
+ in = toybuf;
+ } else if (errno == E2BIG) {
+ xwrite(1, toybuf + 2048, 2048 - outleft);
+ out = toybuf + 2048;
+ outleft = 2048;
+ } else if (errno == EILSEQ) {
+ in++;
+ inleft--;
+ }
+ if (iconv(ic, &in, &inleft, &out, &outleft) != (size_t)-1) errno = 0;
+ }
+}
+
+void iconv_main(void)
+{
+ char *from = "utf8", *to = "utf8";
+
+ if (toys.optflags & FLAG_f) from = TT.from;
+ if (toys.optflags & FLAG_t) to = TT.to;
+ if ((ic = iconv_open(to, from)) == (iconv_t)-1) error_exit("iconv_open");
+ loopfiles(toys.optargs, do_iconv);
+ if (CFG_TOYBOX_FREE) iconv_close(ic);
+}
--
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