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-rw-r--r--src/lzma/suffix.c213
1 files changed, 0 insertions, 213 deletions
diff --git a/src/lzma/suffix.c b/src/lzma/suffix.c
deleted file mode 100644
index 0d46855a..00000000
--- a/src/lzma/suffix.c
+++ /dev/null
@@ -1,213 +0,0 @@
-///////////////////////////////////////////////////////////////////////////////
-//
-/// \file suffix.c
-/// \brief Checks filename suffix and creates the destination filename
-//
-// Copyright (C) 2007 Lasse Collin
-//
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU Lesser General Public
-// License as published by the Free Software Foundation; either
-// version 2.1 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
-// Lesser General Public License for more details.
-//
-///////////////////////////////////////////////////////////////////////////////
-
-#include "private.h"
-
-
-static char *custom_suffix = NULL;
-
-
-struct suffix_pair {
- const char *compressed;
- const char *uncompressed;
-};
-
-
-/// \brief Checks if src_name has given compressed_suffix
-///
-/// \param suffix Filename suffix to look for
-/// \param src_name Input filename
-/// \param src_len strlen(src_name)
-///
-/// \return If src_name has the suffix, src_len - strlen(suffix) is
-/// returned. It's always a positive integer. Otherwise zero
-/// is returned.
-static size_t
-test_suffix(const char *suffix, const char *src_name, size_t src_len)
-{
- const size_t suffix_len = strlen(suffix);
-
- // The filename must have at least one character in addition to
- // the suffix. src_name may contain path to the filename, so we
- // need to check for directory separator too.
- if (src_len <= suffix_len || src_name[src_len - suffix_len - 1] == '/')
- return 0;
-
- if (strcmp(suffix, src_name + src_len - suffix_len) == 0)
- return src_len - suffix_len;
-
- return 0;
-}
-
-
-/// \brief Removes the filename suffix of the compressed file
-///
-/// \return Name of the uncompressed file, or NULL if file has unknown
-/// suffix.
-static char *
-uncompressed_name(const char *src_name, const size_t src_len)
-{
- static const struct suffix_pair suffixes[] = {
- { ".xz", "" },
- { ".txz", ".tar" }, // .txz abbreviation for .txt.gz is rare.
- { ".lzma", "" },
- { ".tlz", ".tar" },
- // { ".gz", "" },
- // { ".tgz", ".tar" },
- };
-
- const char *new_suffix = "";
- size_t new_len = 0;
-
- if (opt_format == FORMAT_RAW) {
- // Don't check for known suffixes when --format=raw was used.
- if (custom_suffix == NULL) {
- message_error(_("%s: With --format=raw, "
- "--suffix=.SUF is required unless "
- "writing to stdout"), src_name);
- return NULL;
- }
- } else {
- for (size_t i = 0; i < ARRAY_SIZE(suffixes); ++i) {
- new_len = test_suffix(suffixes[i].compressed,
- src_name, src_len);
- if (new_len != 0) {
- new_suffix = suffixes[i].uncompressed;
- break;
- }
- }
- }
-
- if (new_len == 0 && custom_suffix != NULL)
- new_len = test_suffix(custom_suffix, src_name, src_len);
-
- if (new_len == 0) {
- message_warning(_("%s: Filename has an unknown suffix, "
- "skipping"), src_name);
- return NULL;
- }
-
- const size_t new_suffix_len = strlen(new_suffix);
- char *dest_name = xmalloc(new_len + new_suffix_len + 1);
-
- memcpy(dest_name, src_name, new_len);
- memcpy(dest_name + new_len, new_suffix, new_suffix_len);
- dest_name[new_len + new_suffix_len] = '\0';
-
- return dest_name;
-}
-
-
-/// \brief Appends suffix to src_name
-///
-/// In contrast to uncompressed_name(), we check only suffixes that are valid
-/// for the specified file format.
-static char *
-compressed_name(const char *src_name, const size_t src_len)
-{
- // The order of these must match the order in args.h.
- static const struct suffix_pair all_suffixes[][3] = {
- {
- { ".xz", "" },
- { ".txz", ".tar" },
- { NULL, NULL }
- }, {
- { ".lzma", "" },
- { ".tlz", ".tar" },
- { NULL, NULL }
-/*
- }, {
- { ".gz", "" },
- { ".tgz", ".tar" },
- { NULL, NULL }
-*/
- }, {
- // --format=raw requires specifying the suffix
- // manually or using stdout.
- { NULL, NULL }
- }
- };
-
- // args.c ensures this.
- assert(opt_format != FORMAT_AUTO);
-
- const size_t format = opt_format - 1;
- const struct suffix_pair *const suffixes = all_suffixes[format];
-
- for (size_t i = 0; suffixes[i].compressed != NULL; ++i) {
- if (test_suffix(suffixes[i].compressed, src_name, src_len)
- != 0) {
- message_warning(_("%s: File already has `%s' "
- "suffix, skipping"), src_name,
- suffixes[i].compressed);
- return NULL;
- }
- }
-
- // TODO: Hmm, maybe it would be better to validate this in args.c,
- // since the suffix handling when decoding is weird now.
- if (opt_format == FORMAT_RAW && custom_suffix == NULL) {
- message_error(_("%s: With --format=raw, "
- "--suffix=.SUF is required unless "
- "writing to stdout"), src_name);
- return NULL;
- }
-
- const char *suffix = custom_suffix != NULL
- ? custom_suffix : suffixes[0].compressed;
- const size_t suffix_len = strlen(suffix);
-
- char *dest_name = xmalloc(src_len + suffix_len + 1);
-
- memcpy(dest_name, src_name, src_len);
- memcpy(dest_name + src_len, suffix, suffix_len);
- dest_name[src_len + suffix_len] = '\0';
-
- return dest_name;
-}
-
-
-extern char *
-suffix_get_dest_name(const char *src_name)
-{
- assert(src_name != NULL);
-
- // Length of the name is needed in all cases to locate the end of
- // the string to compare the suffix, so calculate the length here.
- const size_t src_len = strlen(src_name);
-
- return opt_mode == MODE_COMPRESS
- ? compressed_name(src_name, src_len)
- : uncompressed_name(src_name, src_len);
-}
-
-
-extern void
-suffix_set(const char *suffix)
-{
- // Empty suffix and suffixes having a slash are rejected. Such
- // suffixes would break things later.
- if (suffix[0] == '\0' || strchr(suffix, '/') != NULL)
- message_fatal(_("%s: Invalid filename suffix"), optarg);
-
- // Replace the old custom_suffix (if any) with the new suffix.
- free(custom_suffix);
- custom_suffix = xstrdup(suffix);
- return;
-}
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