/* Convert text in given files from the specified from-set to the to-set.
- Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
+ Copyright (C) 1998-2015 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library 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 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; version 2 of the License, or
+ (at your option) any later version.
- The GNU C Library is distributed in the hope that it will be useful,
+ 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
- Library General Public License for more details.
+ 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 Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, see <http://www.gnu.org/licenses/>. */
#include <argp.h>
+#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <error.h>
#include <fcntl.h>
#include <iconv.h>
+#include <langinfo.h>
#include <locale.h>
#include <search.h>
+#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef _POSIX_MAPPED_FILES
# include <sys/mman.h>
#endif
+#include <charmap.h>
#include <gconv_int.h>
+#include "iconv_prog.h"
+#include "iconvconfig.h"
/* Get libc version number. */
#include "../version.h"
static const struct argp_option options[] =
{
{ NULL, 0, NULL, 0, N_("Input/Output format specification:") },
- { "from-code", 'f', "NAME", 0, N_("encoding of original text") },
- { "to-code", 't', "NAME", 0, N_("encoding for output") },
+ { "from-code", 'f', N_("NAME"), 0, N_("encoding of original text") },
+ { "to-code", 't', N_("NAME"), 0, N_("encoding for output") },
{ NULL, 0, NULL, 0, N_("Information:") },
{ "list", 'l', NULL, 0, N_("list all known coded character sets") },
{ NULL, 0, NULL, 0, N_("Output control:") },
{ NULL, 'c', NULL, 0, N_("omit invalid characters from output") },
- { "output", 'o', "FILE", 0, N_("output file") },
+ { "output", 'o', N_("FILE"), 0, N_("output file") },
{ "silent", 's', NULL, 0, N_("suppress warnings") },
{ "verbose", OPT_VERBOSE, NULL, 0, N_("print progress information") },
{ NULL, 0, NULL, 0, NULL }
options, parse_opt, args_doc, doc, NULL, more_help
};
-/* Code sets to convert from and to respectively. */
-static const char *from_code;
-static const char *to_code;
+/* Code sets to convert from and to respectively. An empty string as the
+ default causes the 'iconv_open' function to look up the charset of the
+ currently selected locale and use it. */
+static const char *from_code = "";
+static const char *to_code = "";
/* File to write output to. If NULL write to stdout. */
static const char *output_file;
/* Nonzero if verbose ouput is wanted. */
-static int verbose;
+int verbose;
/* Nonzero if list of all coded character sets is wanted. */
static int list;
/* If nonzero omit invalid character from output. */
-static int omit_invalid;
+int omit_invalid;
/* Prototypes for the functions doing the actual work. */
-static int process_block (iconv_t cd, char *addr, size_t len, FILE *output);
-static int process_fd (iconv_t cd, int fd, FILE *output);
-static int process_file (iconv_t cd, FILE *input, FILE *output);
+static int process_block (iconv_t cd, char *addr, size_t len, FILE **output,
+ const char *output_file);
+static int process_fd (iconv_t cd, int fd, FILE **output,
+ const char *output_file);
+static int process_file (iconv_t cd, FILE *input, FILE **output,
+ const char *output_file);
static void print_known_names (void) internal_function;
{
int status = EXIT_SUCCESS;
int remaining;
- FILE *output;
iconv_t cd;
const char *orig_to_code;
+ struct charmap_t *from_charmap = NULL;
+ struct charmap_t *to_charmap = NULL;
/* Set locale via LC_ALL. */
setlocale (LC_ALL, "");
exit (EXIT_SUCCESS);
}
- /* If either the from- or to-code is not specified this is an error
- since we do not know what to do. */
- if (from_code == NULL && to_code == NULL)
- error (EXIT_FAILURE, 0,
- _("neither original nor target encoding specified"));
- if (from_code == NULL)
- error (EXIT_FAILURE, 0, _("original encoding not specified using `-f'"));
- if (to_code == NULL)
- error (EXIT_FAILURE, 0, _("target encoding not specified using `-t'"));
-
/* If we have to ignore errors make sure we use the appropriate name for
the to-character-set. */
orig_to_code = to_code;
if (*errhand == '/')
{
--nslash;
- errhand = strchrnul (errhand, '/');
+ errhand = strchrnul (errhand + 1, '/');
if (*errhand == '/')
{
--nslash;
- ++errhand;
+ errhand = strchr (errhand, '\0');
}
}
- newp = (char *) alloca (errhand - to_code + nslash + 6 + 1);
+ newp = (char *) alloca (errhand - to_code + nslash + 7 + 1);
cp = mempcpy (newp, to_code, errhand - to_code);
while (nslash-- > 0)
*cp++ = '/';
+ if (cp[-1] != '/')
+ *cp++ = ',';
memcpy (cp, "IGNORE", sizeof ("IGNORE"));
to_code = newp;
}
- /* Let's see whether we have these coded character sets. */
- cd = iconv_open (to_code, from_code);
- if (cd == (iconv_t) -1)
- {
- if (errno == EINVAL)
- error (EXIT_FAILURE, 0,
- _("conversion from `%s' to `%s' not supported"),
- from_code, orig_to_code);
- else
- error (EXIT_FAILURE, errno,
- _("failed to start conversion processing"));
- }
-
- /* Determine output file. */
- if (output_file != NULL)
- {
- output = fopen (output_file, "w");
- if (output == NULL)
- error (EXIT_FAILURE, errno, _("cannot open output file"));
- }
+ /* POSIX 1003.2b introduces a silly thing: the arguments to -t anf -f
+ can be file names of charmaps. In this case iconv will have to read
+ those charmaps and use them to do the conversion. But there are
+ holes in the specification. There is nothing said that if -f is a
+ charmap filename that -t must be, too. And vice versa. There is
+ also no word about the symbolic names used. What if they don't
+ match? */
+ if (strchr (from_code, '/') != NULL)
+ /* The from-name might be a charmap file name. Try reading the
+ file. */
+ from_charmap = charmap_read (from_code, /*0, 1*/1, 0, 0, 0);
+
+ if (strchr (orig_to_code, '/') != NULL)
+ /* The to-name might be a charmap file name. Try reading the
+ file. */
+ to_charmap = charmap_read (orig_to_code, /*0, 1,*/1, 0, 0, 0);
+
+
+ /* At this point we have to handle two cases. The first one is
+ where a charmap is used for the from- or to-charset, or both. We
+ handle this special since it is very different from the sane way of
+ doing things. The other case allows converting using the iconv()
+ function. */
+ if (from_charmap != NULL || to_charmap != NULL)
+ /* Construct the conversion table and do the conversion. */
+ status = charmap_conversion (from_code, from_charmap, to_code, to_charmap,
+ argc, remaining, argv, output_file);
else
- output = stdout;
-
- /* Now process the remaining files. Write them to stdout or the file
- specified with the `-o' parameter. If we have no file given as
- the parameter process all from stdin. */
- if (remaining == argc)
{
- if (process_file (cd, stdin, output) != 0)
- status = EXIT_FAILURE;
- }
- else
- do
- {
- struct stat st;
- char *addr;
- int fd;
+ /* Let's see whether we have these coded character sets. */
+ cd = iconv_open (to_code, from_code);
+ if (cd == (iconv_t) -1)
+ {
+ if (errno == EINVAL)
+ {
+ /* Try to be nice with the user and tell her which of the
+ two encoding names is wrong. This is possible because
+ all supported encodings can be converted from/to Unicode,
+ in other words, because the graph of encodings is
+ connected. */
+ bool from_wrong =
+ (iconv_open ("UTF-8", from_code) == (iconv_t) -1
+ && errno == EINVAL);
+ bool to_wrong =
+ (iconv_open (to_code, "UTF-8") == (iconv_t) -1
+ && errno == EINVAL);
+ const char *from_pretty =
+ (from_code[0] ? from_code : nl_langinfo (CODESET));
+ const char *to_pretty =
+ (orig_to_code[0] ? orig_to_code : nl_langinfo (CODESET));
+
+ if (from_wrong)
+ {
+ if (to_wrong)
+ error (0, 0,
+ _("\
+conversions from `%s' and to `%s' are not supported"),
+ from_pretty, to_pretty);
+ else
+ error (0, 0,
+ _("conversion from `%s' is not supported"),
+ from_pretty);
+ }
+ else
+ {
+ if (to_wrong)
+ error (0, 0,
+ _("conversion to `%s' is not supported"),
+ to_pretty);
+ else
+ error (0, 0,
+ _("conversion from `%s' to `%s' is not supported"),
+ from_pretty, to_pretty);
+ }
+
+ argp_help (&argp, stderr, ARGP_HELP_SEE,
+ program_invocation_short_name);
+ exit (1);
+ }
+ else
+ error (EXIT_FAILURE, errno,
+ _("failed to start conversion processing"));
+ }
+ /* The output file. Will be opened when we are ready to produce
+ output. */
+ FILE *output = NULL;
- if (verbose)
- printf ("%s:\n", argv[remaining]);
- if (strcmp (argv[remaining], "-") == 0)
- fd = 0;
- else
+ /* Now process the remaining files. Write them to stdout or the file
+ specified with the `-o' parameter. If we have no file given as
+ the parameter process all from stdin. */
+ if (remaining == argc)
+ {
+ if (process_file (cd, stdin, &output, output_file) != 0)
+ status = EXIT_FAILURE;
+ }
+ else
+ do
{
- fd = open (argv[remaining], O_RDONLY);
+#ifdef _POSIX_MAPPED_FILES
+ struct stat64 st;
+ char *addr;
+#endif
+ int fd, ret;
- if (fd == -1)
+ if (verbose)
+ fprintf (stderr, "%s:\n", argv[remaining]);
+ if (strcmp (argv[remaining], "-") == 0)
+ fd = 0;
+ else
{
- error (0, errno, _("cannot open input file `%s'"),
- argv[remaining]);
- status = EXIT_FAILURE;
- continue;
+ fd = open (argv[remaining], O_RDONLY);
+
+ if (fd == -1)
+ {
+ error (0, errno, _("cannot open input file `%s'"),
+ argv[remaining]);
+ status = EXIT_FAILURE;
+ continue;
+ }
}
- }
#ifdef _POSIX_MAPPED_FILES
- /* We have possibilities for reading the input file. First try
- to mmap() it since this will provide the fastest solution. */
- if (fstat (fd, &st) == 0
- && ((addr = mmap (NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0))
- != MAP_FAILED))
- {
- /* Yes, we can use mmap(). The descriptor is not needed
- anymore. */
- if (close (fd) != 0)
- error (EXIT_FAILURE, errno, _("error while closing input `%s'"),
- argv[remaining]);
-
- if (process_block (cd, addr, st.st_size, output) < 0)
+ /* We have possibilities for reading the input file. First try
+ to mmap() it since this will provide the fastest solution. */
+ if (fstat64 (fd, &st) == 0
+ && ((addr = mmap (NULL, st.st_size, PROT_READ, MAP_PRIVATE,
+ fd, 0)) != MAP_FAILED))
{
- /* Something went wrong. */
- status = EXIT_FAILURE;
+ /* Yes, we can use mmap(). The descriptor is not needed
+ anymore. */
+ if (close (fd) != 0)
+ error (EXIT_FAILURE, errno,
+ _("error while closing input `%s'"),
+ argv[remaining]);
+
+ ret = process_block (cd, addr, st.st_size, &output,
+ output_file);
/* We don't need the input data anymore. */
munmap ((void *) addr, st.st_size);
- /* We cannot go on with producing output since it might
- lead to problem because the last output might leave
- the output stream in an undefined state. */
- break;
- }
+ if (ret != 0)
+ {
+ status = EXIT_FAILURE;
- /* We don't need the input data anymore. */
- munmap ((void *) addr, st.st_size);
- }
- else
+ if (ret < 0)
+ /* We cannot go on with producing output since it might
+ lead to problem because the last output might leave
+ the output stream in an undefined state. */
+ break;
+ }
+ }
+ else
#endif /* _POSIX_MAPPED_FILES */
- {
- /* Read the file in pieces. */
- if (process_fd (cd, fd, output) != 0)
{
- /* Something went wrong. */
- status = EXIT_FAILURE;
+ /* Read the file in pieces. */
+ ret = process_fd (cd, fd, &output, output_file);
- /* We don't need the input file anymore. */
+ /* Now close the file. */
close (fd);
- /* We cannot go on with producing output since it might
- lead to problem because the last output might leave
- the output stream in an undefined state. */
- break;
+ if (ret != 0)
+ {
+ /* Something went wrong. */
+ status = EXIT_FAILURE;
+
+ if (ret < 0)
+ /* We cannot go on with producing output since it might
+ lead to problem because the last output might leave
+ the output stream in an undefined state. */
+ break;
+ }
}
-
- /* Now close the file. */
- close (fd);
}
- }
- while (++remaining < argc);
+ while (++remaining < argc);
- /* Close the output file now. */
- if (fclose (output))
- error (EXIT_FAILURE, errno, _("error while closing output file"));
+ /* Close the output file now. */
+ if (output != NULL && fclose (output))
+ error (EXIT_FAILURE, errno, _("error while closing output file"));
+ }
return status;
}
static char *
more_help (int key, const char *text, void *input)
{
+ char *tp = NULL;
switch (key)
{
case ARGP_KEY_HELP_EXTRA:
/* We print some extra information. */
- return strdup (gettext ("\
-Report bugs using the `glibcbug' script to <bugs@gnu.org>.\n"));
+ if (asprintf (&tp, gettext ("\
+For bug reporting instructions, please see:\n\
+%s.\n"), REPORT_BUGS_TO) < 0)
+ return NULL;
+ return tp;
default:
break;
}
static void
print_version (FILE *stream, struct argp_state *state)
{
- fprintf (stream, "iconv (GNU %s) %s\n", PACKAGE, VERSION);
+ fprintf (stream, "iconv %s%s\n", PKGVERSION, VERSION);
fprintf (stream, gettext ("\
Copyright (C) %s Free Software Foundation, Inc.\n\
This is free software; see the source for copying conditions. There is NO\n\
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
-"), "2001");
+"), "2014");
fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper");
}
static int
-process_block (iconv_t cd, char *addr, size_t len, FILE *output)
+write_output (const char *outbuf, const char *outptr, FILE **output,
+ const char *output_file)
+{
+ /* We have something to write out. */
+ int errno_save = errno;
+
+ if (*output == NULL)
+ {
+ /* Determine output file. */
+ if (output_file != NULL && strcmp (output_file, "-") != 0)
+ {
+ *output = fopen (output_file, "w");
+ if (*output == NULL)
+ error (EXIT_FAILURE, errno, _("cannot open output file"));
+ }
+ else
+ *output = stdout;
+ }
+
+ if (fwrite (outbuf, 1, outptr - outbuf, *output) < (size_t) (outptr - outbuf)
+ || ferror (*output))
+ {
+ /* Error occurred while printing the result. */
+ error (0, 0, _("\
+conversion stopped due to problem in writing the output"));
+ return -1;
+ }
+
+ errno = errno_save;
+
+ return 0;
+}
+
+
+static int
+process_block (iconv_t cd, char *addr, size_t len, FILE **output,
+ const char *output_file)
{
#define OUTBUF_SIZE 32768
const char *start = addr;
char *outptr;
size_t outlen;
size_t n;
+ int ret = 0;
while (len > 0)
{
outlen = OUTBUF_SIZE;
n = iconv (cd, &addr, &len, &outptr, &outlen);
- if (outptr != outbuf)
+ if (n == (size_t) -1 && omit_invalid && errno == EILSEQ)
{
- /* We have something to write out. */
- int errno_save = errno;
-
- if (fwrite (outbuf, 1, outptr - outbuf, output) < outptr - outbuf
- || ferror (output))
- {
- /* Error occurred while printing the result. */
- error (0, 0, _("\
-conversion stopped due to problem in writing the output"));
- return -1;
- }
+ ret = 1;
+ if (len == 0)
+ n = 0;
+ else
+ errno = E2BIG;
+ }
- errno = errno_save;
+ if (outptr != outbuf)
+ {
+ ret = write_output (outbuf, outptr, output, output_file);
+ if (ret != 0)
+ break;
}
if (n != (size_t) -1)
{
/* All the input test is processed. For state-dependent
- character sets we have to flush the state now. */
+ character sets we have to flush the state now. */
outptr = outbuf;
outlen = OUTBUF_SIZE;
n = iconv (cd, NULL, NULL, &outptr, &outlen);
if (outptr != outbuf)
{
- /* We have something to write out. */
- int errno_save = errno;
+ ret = write_output (outbuf, outptr, output, output_file);
+ if (ret != 0)
+ break;
+ }
- if (fwrite (outbuf, 1, outptr - outbuf, output) < outptr - outbuf
- || ferror (output))
- {
- /* Error occurred while printing the result. */
- error (0, 0, _("\
-conversion stopped due to problem in writing the output"));
- return -1;
- }
+ if (n != (size_t) -1)
+ break;
- errno = errno_save;
+ if (omit_invalid && errno == EILSEQ)
+ {
+ ret = 1;
+ break;
}
-
- break;
}
if (errno != E2BIG)
switch (errno)
{
case EILSEQ:
- error (0, 0, _("illegal input sequence at position %ld"),
- (long) (addr - start));
+ if (! omit_invalid)
+ error (0, 0, _("illegal input sequence at position %ld"),
+ (long int) (addr - start));
break;
case EINVAL:
error (0, 0, _("\
}
}
- return 0;
+ return ret;
}
static int
-process_fd (iconv_t cd, int fd, FILE *output)
+process_fd (iconv_t cd, int fd, FILE **output, const char *output_file)
{
/* we have a problem with reading from a desriptor since we must not
provide the iconv() function an incomplete character or shift
while (1)
{
ssize_t n;
+ char *new_inbuf;
/* Increase the buffer. */
+ new_inbuf = (char *) realloc (inbuf, maxlen + 32768);
+ if (new_inbuf == NULL)
+ {
+ error (0, errno, _("unable to allocate buffer for input"));
+ return -1;
+ }
+ inbuf = new_inbuf;
maxlen += 32768;
- inbuf = realloc (inbuf, maxlen);
- if (inbuf == NULL)
- error (0, errno, _("unable to allocate buffer for input"));
inptr = inbuf + actlen;
do
}
/* Now we have all the input in the buffer. Process it in one run. */
- return process_block (cd, inbuf, actlen, output);
+ return process_block (cd, inbuf, actlen, output, output_file);
}
static int
-process_file (iconv_t cd, FILE *input, FILE *output)
+process_file (iconv_t cd, FILE *input, FILE **output, const char *output_file)
{
/* This should be safe since we use this function only for `stdin' and
we haven't read anything so far. */
- return process_fd (cd, fileno (input), output);
+ return process_fd (cd, fileno (input), output, output_file);
}
}
static void
-do_print (const void *nodep, VISIT value, int level)
+do_print_human (const void *nodep, VISIT value, int level)
{
if (value == leaf || value == postorder)
{
}
}
+static void
+do_print (const void *nodep, VISIT value, int level)
+{
+ if (value == leaf || value == postorder)
+ {
+ const char *s = *(const char **) nodep;
+
+ puts (s);
+ }
+}
+
static void
internal_function
add_known_names (struct gconv_module *node)
add_known_names (node->right);
do
{
- if (strcmp (node->from_string, "INTERNAL"))
- tsearch (node->from_string, &printlist,
- (__compar_fn_t) strverscmp);
- if (strcmp (node->to_string, "INTERNAL"))
+ if (strcmp (node->from_string, "INTERNAL") != 0)
+ tsearch (node->from_string, &printlist, (__compar_fn_t) strverscmp);
+ if (strcmp (node->to_string, "INTERNAL") != 0)
tsearch (node->to_string, &printlist, (__compar_fn_t) strverscmp);
node = node->same;
while (node != NULL);
}
+
+static void
+insert_cache (void)
+{
+ const struct gconvcache_header *header;
+ const char *strtab;
+ const struct hash_entry *hashtab;
+ size_t cnt;
+
+ header = (const struct gconvcache_header *) __gconv_get_cache ();
+ strtab = (char *) header + header->string_offset;
+ hashtab = (struct hash_entry *) ((char *) header + header->hash_offset);
+
+ for (cnt = 0; cnt < header->hash_size; ++cnt)
+ if (hashtab[cnt].string_offset != 0)
+ {
+ const char *str = strtab + hashtab[cnt].string_offset;
+
+ if (strcmp (str, "INTERNAL") != 0)
+ tsearch (str, &printlist, (__compar_fn_t) strverscmp);
+ }
+}
+
+
static void
internal_function
print_known_names (void)
{
iconv_t h;
+ void *cache;
/* We must initialize the internal databases first. */
h = iconv_open ("L1", "L1");
iconv_close (h);
- /* First add the aliases. */
- twalk (__gconv_alias_db, insert_print_list);
+ /* See whether we have a cache. */
+ cache = __gconv_get_cache ();
+ if (cache != NULL)
+ /* Yep, use only this information. */
+ insert_cache ();
+ else
+ {
+ struct gconv_module *modules;
+
+ /* No, then use the information read from the gconv-modules file.
+ First add the aliases. */
+ twalk (__gconv_get_alias_db (), insert_print_list);
+
+ /* Add the from- and to-names from the known modules. */
+ modules = __gconv_get_modules_db ();
+ if (modules != NULL)
+ add_known_names (modules);
+ }
- /* Add the from- and to-names from the known modules. */
- add_known_names (__gconv_modules_db);
+ bool human_readable = isatty (fileno (stdout));
- fputs (_("\
-The following list contain all the coded character sets known. This does\n\
+ if (human_readable)
+ fputs (_("\
+The following list contains all the coded character sets known. This does\n\
not necessarily mean that all combinations of these names can be used for\n\
the FROM and TO command line parameters. One coded character set can be\n\
listed with several different names (aliases).\n\n "), stdout);
/* Now print the collected names. */
column = 2;
- twalk (printlist, do_print);
+ twalk (printlist, human_readable ? do_print_human : do_print);
- if (column != 0)
+ if (human_readable && column != 0)
puts ("");
}
projects / thirdparty / glibc.git / blobdiff