+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- * MA 02110-1301, USA.
- *
- * Copyright © 2006 Pierre Habouzit
- */
-/*
- * Copyright notice from original mutt:
- * Copyright (C) 1999-2000 Thomas Roessler <roessler@does-not-exist.org>
- *
- * This file is part of mutt-ng, see http://www.muttng.org/.
- * It's licensed under the GNU General Public License,
- * please see the file GPL in the top level source directory.
- */
-
-#include <lib-lib/lib-lib.h>
-
-#ifdef HAVE_LANGINFO_CODESET
-# include <langinfo.h>
-#endif
-
-#include "mutt.h"
-#include "charset.h"
-
-#ifndef EILSEQ
-# define EILSEQ EINVAL
-#endif
-
-char *Charset;
-int Charset_is_utf8 = 0;
-wchar_t CharsetReplacement = '?';
-
-
-/****************************************************************************/
-/* charset functions */
-/****************************************************************************/
-
-void charset_initialize(void)
-{
-#ifdef HAVE_LANGINFO_CODESET
- char buff[STRING];
- char buff2[STRING];
-
- m_strcpy(buff, sizeof(buff), nl_langinfo(CODESET));
- charset_canonicalize(buff2, sizeof(buff2), buff);
-
- /* finally, set $charset */
- if (!m_strisempty(buff2)) {
- m_strreplace(&Charset, buff2);
- } else
-#endif
- {
- m_strreplace(&Charset, "iso-8859-1");
- }
-
- Charset_is_utf8 = !m_strcmp(Charset, "utf-8");
- CharsetReplacement = Charset_is_utf8 ? 0xfffd : '?';
-
-#ifdef HAVE_BIND_TEXTDOMAIN_CODESET
- bind_textdomain_codeset(PACKAGE, Charset);
-#endif
-}
-
-#include "charset.gperf"
-void charset_canonicalize(char *dest, ssize_t dlen, const char *name)
-{
- const struct cset_pair *cp;
- char scratch[STRING];
- const char *p;
- int i = 0;
-
- if (!name) {
- m_strcpy(dest, dlen, "us-ascii");
- return;
- }
-
- // canonize name: only keep a-z0-9 and dots, put into lowercase
- for (p = name; *p && *p != ':' && i < ssizeof(scratch) - 1; p++) {
- if (isalnum(*p) || *p== '.') {
- scratch[i++] = tolower((unsigned char)*p);
- }
- }
- scratch[i] = '\0';
-
- cp = charset_canonicalize_aux(scratch, strlen(scratch));
- if (cp) {
- m_strcpy(dest, dlen, cp->pref);
- } else {
- m_strcpy(dest, dlen, name);
- m_strtolower(dest);
- }
-}
-
-/* XXX: MC: UGLY return of local static */
-const char *charset_getfirst(const char *charset)
-{
- static char fcharset[STRING];
- const char *p;
-
- if (m_strisempty(charset))
- return "us-ascii";
-
- p = m_strchrnul(charset, ':');
- m_strncpy(fcharset, sizeof(fcharset), charset, p - charset);
- return fcharset;
-}
-
-int charset_is_utf8(const char *s)
-{
- char buf[STRING];
- charset_canonicalize(buf, sizeof(buf), s);
- return !m_strcmp(buf, "utf-8");
-}
-
-int charset_is_us_ascii(const char *s)
-{
- char buf[STRING];
- charset_canonicalize(buf, sizeof(buf), s);
- return !m_strcmp(buf, "us-ascii");
-}
-
-
-/****************************************************************************/
-/* iconv-line functions */
-/****************************************************************************/
-
-/* Like iconv_open, but canonicalises the charsets */
-iconv_t mutt_iconv_open(const char *tocode, const char *fromcode, int flags)
-{
- char tocode1[STRING];
- char fromcode1[STRING];
- const char *tmp;
-
- iconv_t cd;
-
- if ((flags & M_ICONV_HOOK_TO) && (tmp = mutt_charset_hook(tocode1))) {
- charset_canonicalize(tocode1, sizeof(tocode1), tmp);
- } else {
- charset_canonicalize(tocode1, sizeof(tocode1), tocode);
- }
-
- if ((flags & M_ICONV_HOOK_FROM) && (tmp = mutt_charset_hook(fromcode1))) {
- charset_canonicalize(fromcode1, sizeof(fromcode1), tmp);
- } else {
- charset_canonicalize(fromcode1, sizeof(fromcode1), fromcode);
- }
-
- cd = iconv_open(tocode1, fromcode1);
- if (cd != MUTT_ICONV_ERROR)
- return cd;
-
- {
- const char *to = mutt_iconv_hook(tocode1);
- const char *from = mutt_iconv_hook(fromcode1);
-
- return to && from ? iconv_open(to, from) : MUTT_ICONV_ERROR;
- }
-}
-
-
-/* Like iconv, but keeps going even when the input is invalid
- If you're supplying inrepls, the source charset should be stateless;
- if you're supplying an outrepl, the target charset should be. */
-/* XXX: MC: I do not understand what it does yet */
-ssize_t mutt_iconv(iconv_t cd,
- const char **inbuf, ssize_t *inbytesleft,
- char **outbuf, ssize_t *outbytesleft,
- const char **inrepls, const char *outrepl)
-{
- ssize_t ret = 0, ret1;
- const char *ib = *inbuf;
- ssize_t ibl = *inbytesleft;
- char *ob = *outbuf;
- ssize_t obl = *outbytesleft;
-
- for (;;) {
- ret1 = my_iconv(cd, &ib, &ibl, &ob, &obl);
- if (ret1 != -1)
- ret += ret1;
-
- if (ibl && obl && errno == EILSEQ) {
- if (inrepls) {
- /* Try replacing the input */
- const char **t;
-
- for (t = inrepls; *t; t++) {
- const char *ib1 = *t;
- ssize_t ibl1 = m_strlen(*t);
- char *ob1 = ob;
- ssize_t obl1 = obl;
-
- my_iconv(cd, &ib1, &ibl1, &ob1, &obl1);
- if (!ibl1) {
- ++ib, --ibl;
- ob = ob1, obl = obl1;
- ++ret;
- break;
- }
- }
- if (*t)
- continue;
- }
- /* Replace the output */
- if (!outrepl)
- outrepl = "?";
- my_iconv(cd, 0, 0, &ob, &obl);
- if (obl) {
- ssize_t n = m_strlen(outrepl);
-
- if (n > obl) {
- outrepl = "?";
- n = 1;
- }
- memcpy(ob, outrepl, n);
- ++ib, --ibl;
- ob += n, obl -= n;
- ++ret;
- my_iconv(cd, 0, 0, 0, 0); /* for good measure */
- continue;
- }
- }
- *inbuf = ib, *inbytesleft = ibl;
- *outbuf = ob, *outbytesleft = obl;
- return ret;
- }
-}
-
-/* Convert a string */
-int
-mutt_convert_string(char **ps, const char *from, const char *to, int flags)
-{
- iconv_t cd;
- const char *repls[] = { "\357\277\275", "?", 0 };
-
- if (m_strisempty(*ps))
- return 0;
-
- cd = mutt_iconv_open(to, from, flags);
- if (cd != MUTT_ICONV_ERROR) {
- const char **inrepls = NULL;
- const char *outrepl = NULL;
- const char *ib;
- char *buf, *ob;
- ssize_t ibl, obl;
-
- if (charset_is_utf8(to))
- outrepl = "\357\277\275";
- else
- if (charset_is_utf8(from))
- inrepls = repls;
- else
- outrepl = "?";
-
- ibl = m_strlen(*ps) + 1;
- ib = *ps;
-
- obl = MB_LEN_MAX * ibl;
- ob = buf = p_new(char, obl + 1);
-
- mutt_iconv(cd, &ib, &ibl, &ob, &obl, inrepls, outrepl);
- iconv_close(cd);
-
- *ob = '\0';
-
- p_delete(ps);
- *ps = buf;
- return 0;
- }
-
- return -1;
-}
-
-static ssize_t convert_string(const char *f, ssize_t flen,
- const char *from, const char *to,
- char **t, ssize_t * tlen)
-{
- iconv_t cd;
- char *buf, *ob;
- ssize_t obl;
- ssize_t n;
- int e;
-
- if ((cd = mutt_iconv_open(to, from, 0)) == MUTT_ICONV_ERROR)
- return -1;
-
- obl = 4 * flen + 1;
- ob = buf = p_new(char, obl);
- n = my_iconv(cd, &f, &flen, &ob, &obl);
-
- if (n < 0 || my_iconv(cd, 0, 0, &ob, &obl) < 0) {
- e = errno;
- p_delete(&buf);
- iconv_close(cd);
- errno = e;
- return -1;
- }
-
- *ob = '\0';
- *tlen = ob - buf;
- *t = buf;
- iconv_close(cd);
- return n;
-}
-
-int mutt_convert_nonmime_string(char **ps)
-{
- const char *p = AssumedCharset;
- ssize_t ulen = m_strlen(*ps);
- char *u = *ps;
-
- while (*p) {
- const char *q;
- char fromcode[LONG_STRING], *s = NULL;
- ssize_t slen;
-
- if (!ulen)
- return 0;
-
- while (*p == ':')
- *p++;
-
- q = m_strchrnul(p, ':');
- m_strncpy(fromcode, sizeof(fromcode), p, q - p);
- p = q;
-
- if (convert_string(u, ulen, fromcode, Charset, &s, &slen) >= 0) {
- p_delete(ps);
- *ps = s;
- return 0;
- }
- }
-
- return -1;
-}
-
-/****************************************************************************/
-/* fgetconv functions */
-/****************************************************************************/
-
-/* fgetconv_t stuff for converting a file while reading it
- Used in sendlib.c for converting from mutt's Charset */
-
-struct fgetconv_t {
- FILE *file;
- iconv_t cd;
- char bufi[BUFSIZ];
- char bufo[BUFSIZ];
- char *p;
- char *ob;
- char *ib;
- ssize_t ibl;
- const char **inrepls;
-};
-
-fgetconv_t *
-fgetconv_open(FILE *file, const char *from, const char *to, int flags)
-{
- static const char *repls[] = { "\357\277\275", "?", 0 };
-
- struct fgetconv_t *fc = p_new(struct fgetconv_t, 1);
-
- fc->file = file;
- fc->cd = MUTT_ICONV_ERROR;
- if (from && to)
- fc->cd = mutt_iconv_open(to, from, flags);
-
- if (fc->cd != MUTT_ICONV_ERROR) {
- fc->p = fc->ob = fc->bufo;
- fc->ib = fc->bufi;
- fc->ibl = 0;
- fc->inrepls = repls + charset_is_utf8(to);
- }
- return fc;
-}
-
-void fgetconv_close(fgetconv_t **fcp)
-{
- struct fgetconv_t *fc = *fcp;
-
- if (fc->cd != MUTT_ICONV_ERROR)
- iconv_close (fc->cd);
- p_delete(fcp);
-}
-
-
-int fgetconv(fgetconv_t *fc)
-{
- if (!fc)
- return EOF;
-
- if (fc->cd == MUTT_ICONV_ERROR)
- return fgetc(fc->file);
-
- if (!fc->p)
- return EOF;
- if (fc->p < fc->ob)
- return (unsigned char)*(fc->p)++;
-
- /* Try to convert some more */
- fc->p = fc->ob = fc->bufo;
- if (fc->ibl) {
- ssize_t obl = ssizeof(fc->bufo);
-
- my_iconv(fc->cd, (const char **)&fc->ib, &fc->ibl, &fc->ob, &obl);
- if (fc->p < fc->ob)
- return (unsigned char)*(fc->p)++;
- }
-
- /* If we trusted iconv a bit more, we would at this point
- * ask why it had stopped converting ... */
-
- /* Try to read some more */
- if (fc->ibl == sizeof(fc->bufi)
- || (fc->ibl && fc->ib + fc->ibl < fc->bufi + sizeof(fc->bufi))) {
- fc->p = NULL;
- return EOF;
- }
-
- if (fc->ibl) {
- memcpy(fc->bufi, fc->ib, fc->ibl);
- }
- fc->ib = fc->bufi;
- fc->ibl += fread(fc->ib + fc->ibl, 1, sizeof(fc->bufi) - fc->ibl,
- fc->file);
-
- /* Try harder this time to convert some */
- if (fc->ibl) {
- ssize_t obl = ssizeof(fc->bufo);
-
- mutt_iconv(fc->cd, (const char **)&fc->ib, &fc->ibl, &fc->ob, &obl,
- fc->inrepls, 0);
- if (fc->p < fc->ob) {
- return (unsigned char)*(fc->p)++;
- }
- }
-
- /* Either the file has finished or one of the buffers is too small */
- fc->p = NULL;
- return EOF;
-}
-
-char *fgetconvs(char *buf, ssize_t len, fgetconv_t *fc)
-{
- ssize_t pos = 0;
-
- while (pos < len - 1) {
- int c = fgetconv(fc);
- if (c == EOF)
- break;
-
- buf[pos++] = c;
- if (c == '\n')
- break;
- }
- buf[pos] = '\0';
-
- return pos ? buf : NULL;
-}
projects / apps / madmutt.git / blobdiff