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Diffstat (limited to 'iconv/iconv_prog.c')
-rw-r--r--iconv/iconv_prog.c202
1 files changed, 118 insertions, 84 deletions
diff --git a/iconv/iconv_prog.c b/iconv/iconv_prog.c
index 6b9930e..24521c0 100644
--- a/iconv/iconv_prog.c
+++ b/iconv/iconv_prog.c
@@ -36,7 +36,9 @@
#ifdef _POSIX_MAPPED_FILES
# include <sys/mman.h>
#endif
+#include <charmap.h>
#include <gconv_int.h>
+#include "iconv_prog.h"
/* Get libc version number. */
#include "../version.h"
@@ -94,13 +96,13 @@ static const char *to_code;
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);
@@ -117,6 +119,8 @@ main (int argc, char *argv[])
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, "");
@@ -179,18 +183,23 @@ main (int argc, char *argv[])
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"));
- }
+ /* 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);
+
+ 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);
+
/* Determine output file. */
if (output_file != NULL && strcmp (output_file, "-") != 0)
@@ -202,92 +211,117 @@ main (int argc, char *argv[])
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;
- }
+ /* 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);
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)
+ 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"));
+ }
- 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) != 0)
+ status = EXIT_FAILURE;
+ }
+ else
+ do
{
- fd = open (argv[remaining], O_RDONLY);
-
- if (fd == -1)
+ struct stat st;
+ char *addr;
+ int fd;
+
+ if (verbose)
+ printf ("%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 (fstat (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]);
+
+ if (process_block (cd, addr, st.st_size, output) < 0)
+ {
+ /* Something went wrong. */
+ status = EXIT_FAILURE;
+
+ /* 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;
+ }
/* 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;
}
-
- /* We don't need the input data anymore. */
- munmap ((void *) addr, st.st_size);
- }
- else
+ else
#endif /* _POSIX_MAPPED_FILES */
- {
- /* Read the file in pieces. */
- if (process_fd (cd, fd, output) != 0)
{
- /* Something went wrong. */
- status = EXIT_FAILURE;
-
- /* We don't need the input file anymore. */
+ /* Read the file in pieces. */
+ if (process_fd (cd, fd, output) != 0)
+ {
+ /* Something went wrong. */
+ status = EXIT_FAILURE;
+
+ /* We don't need the input file anymore. */
+ 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;
+ }
+
+ /* 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;
}
-
- /* Now close the file. */
- close (fd);
}
- }
- while (++remaining < argc);
+ while (++remaining < argc);
+ }
/* Close the output file now. */
if (fclose (output))
@@ -402,7 +436,7 @@ conversion stopped due to problem in writing the output"));
character sets we have to flush the state now. */
outptr = outbuf;
outlen = OUTBUF_SIZE;
- n = iconv (cd, NULL, NULL, &outptr, &outlen);
+ (void) iconv (cd, NULL, NULL, &outptr, &outlen);
if (outptr != outbuf)
{
generated by cgit v1.1 at 2024-11-26 07:45:48 +0000