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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:19:27 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:19:27 +0000 |
commit | e0023883c6d2e6745a19e4b48e186ed156c1fca8 (patch) | |
tree | 1a48b8056ec984385d0d862b683535d04d6ed215 /src/convert.c | |
parent | Initial commit. (diff) | |
download | man-db-e0023883c6d2e6745a19e4b48e186ed156c1fca8.tar.xz man-db-e0023883c6d2e6745a19e4b48e186ed156c1fca8.zip |
Adding upstream version 2.11.2.upstream/2.11.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/convert.c')
-rw-r--r-- | src/convert.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/src/convert.c b/src/convert.c new file mode 100644 index 0000000..447240c --- /dev/null +++ b/src/convert.c @@ -0,0 +1,99 @@ +/* + * convert.c: simple encoding conversions + * + * Copyright (C) 2007-2022 Colin Watson. + * + * This file is part of man-db. + * + * man-db 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. + * + * man-db 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 man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif /* HAVE_CONFIG_H */ + +#include <errno.h> +#include <stdbool.h> +#include <string.h> + +#ifdef HAVE_ICONV +# include <iconv.h> +#endif /* HAVE_ICONV */ + +#include "attribute.h" +#include "xalloc.h" +#include "xvasprintf.h" + +#include "manconfig.h" + +#include "cleanup.h" +#include "encodings.h" + +#include "convert.h" + +#ifdef HAVE_ICONV +static bool conv_to_locale_initialized = false; +static iconv_t conv_to_locale = (iconv_t) -1; + +static void close_conv_to_locale (void *ignored MAYBE_UNUSED) +{ + iconv_close (conv_to_locale); +} + +char * ATTRIBUTE_MALLOC convert_to_locale (char *string) +{ + if (!conv_to_locale_initialized) { + char *locale_charset = xasprintf + ("%s//IGNORE", get_locale_charset ()); + conv_to_locale = iconv_open (locale_charset, "UTF-8"); + free (locale_charset); + if (conv_to_locale != (iconv_t) -1) + push_cleanup (close_conv_to_locale, NULL, 0); + conv_to_locale_initialized = true; + } + + if (conv_to_locale != (iconv_t) -1) { + size_t string_conv_alloc = strlen (string) + 1; + char *string_conv = xmalloc (string_conv_alloc); + for (;;) { + char *inptr = string, *outptr = string_conv; + size_t inleft = strlen (string); + size_t outleft = string_conv_alloc - 1; + if (iconv (conv_to_locale, + (ICONV_CONST char **) &inptr, &inleft, + &outptr, &outleft) == (size_t) -1 && + errno == E2BIG) { + string_conv_alloc <<= 1; + string_conv = xrealloc (string_conv, + string_conv_alloc); + } else { + /* Either we succeeded, or we've done our + * best; go ahead and print what we've got. + */ + string_conv[string_conv_alloc - 1 - outleft] = + '\0'; + break; + } + } + return string_conv; + } else + return xstrdup (string); +} +#else /* !HAVE_ICONV */ +char * ATTRIBUTE_MALLOC convert_to_locale (char *string) +{ + return xstrdup (string); +} +#endif /* HAVE_ICONV */ |