8e3f3adf98
* src/common.h (add_exclude_tag): Add decl; C99 requires this and Forte warns about it. * src/incremen.c: Include <mkdtemp.h> for mkdtemp prototype, for same reason. * src/misc.c (get_max_open_files): Rewrite to avoid code that Forte C complains about as being unreachable. * src/xheader.c (mtime_code): Rewrite to avoid Forte error reported by Trond Hasle Amundsen. * src/incremen.c (compare_dirnames): Rewrite to avoid casts. * src/utf8.c (string_ascii_p): Likewise. * src/xheader.c (mtime_coder, volume_size_coder, volume_offset_coder): Likewise. SCALAR(0x8283218)
98 lines
2.2 KiB
C
98 lines
2.2 KiB
C
/* Charset handling for GNU tar.
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Copyright (C) 2004, 2006 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2, or (at your option) any later
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version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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#include <system.h>
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#include <quotearg.h>
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#include <localcharset.h>
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#include "common.h"
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#ifdef HAVE_ICONV_H
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# include <iconv.h>
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#endif
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#ifndef ICONV_CONST
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# define ICONV_CONST
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#endif
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#ifndef HAVE_ICONV
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# undef iconv_open
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# define iconv_open(tocode, fromcode) ((iconv_t) -1)
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# undef iconv
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# define iconv(cd, inbuf, inbytesleft, outbuf, outbytesleft) ((size_t) 0)
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# undef iconv_close
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# define iconv_close(cd) 0
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#endif
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static iconv_t conv_desc[2] = { (iconv_t) -1, (iconv_t) -1 };
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static iconv_t
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utf8_init (bool to_utf)
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{
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if (conv_desc[(int) to_utf] == (iconv_t) -1)
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{
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if (to_utf)
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conv_desc[(int) to_utf] = iconv_open ("UTF-8", locale_charset ());
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else
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conv_desc[(int) to_utf] = iconv_open (locale_charset (), "UTF-8");
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}
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return conv_desc[(int) to_utf];
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}
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bool
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utf8_convert (bool to_utf, char const *input, char **output)
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{
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char ICONV_CONST *ib;
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char *ob;
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size_t inlen;
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size_t outlen;
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size_t rc;
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iconv_t cd = utf8_init (to_utf);
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if (cd == 0)
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{
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*output = xstrdup (input);
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return true;
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}
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else if (cd == (iconv_t)-1)
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return false;
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inlen = strlen (input) + 1;
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outlen = inlen * MB_LEN_MAX + 1;
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ob = *output = xmalloc (outlen);
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ib = (char ICONV_CONST *) input;
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rc = iconv (cd, &ib, &inlen, &ob, &outlen);
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*ob = 0;
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return rc != -1;
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}
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bool
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string_ascii_p (char const *p)
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{
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for (; *p; p++)
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if (! (0 <= *p && *p <= 127))
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return false;
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return true;
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}
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