First Commit

3rdparty/libzip/lib/zip_file_set_mtime.c

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+/*
+ zip_file_set_mtime.c -- set modification time of entry.
+ Copyright (C) 2014-2024 Dieter Baron and Thomas Klausner
+
+ This file is part of libzip, a library to manipulate ZIP archives.
+ The authors can be contacted at <info@libzip.org>
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+ 1. Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in
+ the documentation and/or other materials provided with the
+ distribution.
+ 3. The names of the authors may not be used to endorse or promote
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS
+ OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
+ DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "zipint.h"
+
+static int zip_file_set_time(zip_t *za, zip_uint64_t idx, zip_uint16_t dtime, zip_uint16_t ddate, zip_flags_t flags, time_t *mtime) {
+    zip_entry_t *e;
+
+    if (_zip_get_dirent(za, idx, 0, NULL) == NULL) {
+        return -1;
+    }
+
+    if (ZIP_IS_RDONLY(za)) {
+        zip_error_set(&za->error, ZIP_ER_RDONLY, 0);
+        return -1;
+    }
+    if (ZIP_WANT_TORRENTZIP(za)) {
+        zip_error_set(&za->error, ZIP_ER_NOT_ALLOWED, 0);
+        return -1;
+    }
+
+    e = za->entry + idx;
+
+    if (e->orig != NULL && e->orig->encryption_method == ZIP_EM_TRAD_PKWARE && !ZIP_ENTRY_CHANGED(e, ZIP_DIRENT_ENCRYPTION_METHOD) && !ZIP_ENTRY_DATA_CHANGED(e)) {
+        zip_error_set(&za->error, ZIP_ER_OPNOTSUPP, 0);
+        return -1;
+    }
+
+    if (e->changes == NULL) {
+        if ((e->changes = _zip_dirent_clone(e->orig)) == NULL) {
+            zip_error_set(&za->error, ZIP_ER_MEMORY, 0);
+            return -1;
+        }
+    }
+
+    e->changes->last_mod.time = dtime;
+    e->changes->last_mod.date = ddate;
+    if (mtime != NULL) {
+        e->changes->last_mod_mtime = *mtime;
+        e->changes->last_mod_mtime_valid = true;
+    }
+    else {
+        e->changes->last_mod_mtime_valid = false;
+    }
+    e->changes->changed |= ZIP_DIRENT_LAST_MOD;
+
+    return 0;
+}
+
+ZIP_EXTERN int zip_file_set_dostime(zip_t *za, zip_uint64_t idx, zip_uint16_t dtime, zip_uint16_t ddate, zip_flags_t flags) {
+    return zip_file_set_time(za, idx, dtime, ddate, flags, NULL);
+}
+
+
+ZIP_EXTERN int zip_file_set_mtime(zip_t *za, zip_uint64_t idx, time_t mtime, zip_flags_t flags) {
+    zip_dostime_t dostime;
+
+    if (_zip_u2d_time(mtime, &dostime, &za->error) < 0) {
+        return -1;
+    }
+
+    return zip_file_set_time(za, idx, dostime.time, dostime.date, flags, &mtime);
+}