From 85224dd4982ba22f448e8cc1319bb3252b2a6671 Mon Sep 17 00:00:00 2001 From: Felix Janda 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 (limited to '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 + * + * 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 + +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); +} -- cgit v1.2.3