Core/Dep: Added libzip which IS needed by G3D

Fixes compile on Windows and Linux (if you didn't have libzip installed for
some reason).

--HG--
branch : trunk

1 files changed, 679 insertions, 0 deletions

diff --git a/dep/libzip/lib/zip_close.c b/dep/libzip/lib/zip_close.c
new file mode 100644
index 00000000000..c6885d96a93
--- /dev/null
+++ b/dep/libzip/lib/zip_close.c
@@ -0,0 +1,679 @@
+/*
+  zip_close.c -- close zip archive and update changes
+  Copyright (C) 1999-2008 Dieter Baron and Thomas Klausner
+
+  This file is part of libzip, a library to manipulate ZIP archives.
+  The authors can be contacted at <libzip@nih.at>
+
+  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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include "zipint.h"
+
+static int add_data(struct zip *, struct zip_source *, struct zip_dirent *,
+		    FILE *);
+static int add_data_comp(zip_source_callback, void *, struct zip_stat *,
+			 FILE *, struct zip_error *);
+static int add_data_uncomp(struct zip *, zip_source_callback, void *,
+			   struct zip_stat *, FILE *);
+static void ch_set_error(struct zip_error *, zip_source_callback, void *);
+static int copy_data(FILE *, off_t, FILE *, struct zip_error *);
+static int write_cdir(struct zip *, struct zip_cdir *, FILE *);
+static int _zip_cdir_set_comment(struct zip_cdir *, struct zip *);
+static int _zip_changed(struct zip *, int *);
+static char *_zip_create_temp_output(struct zip *, FILE **);
+static int _zip_torrentzip_cmp(const void *, const void *);
+
+
+
+struct filelist {
+    int idx;
+    const char *name;
+};
+
+
+
+ZIP_EXTERN int
+zip_close(struct zip *za)
+{
+    int survivors;
+    int i, j, error;
+    char *temp;
+    FILE *out;
+    mode_t mask;
+    struct zip_cdir *cd;
+    struct zip_dirent de;
+    struct filelist *filelist;
+    int reopen_on_error;
+    int new_torrentzip;
+
+    reopen_on_error = 0;
+
+    if (za == NULL)
+	return -1;
+
+    if (!_zip_changed(za, &survivors)) {
+	_zip_free(za);
+	return 0;
+    }
+
+    /* don't create zip files with no entries */
+    if (survivors == 0) {
+	if (za->zn && za->zp) {
+	    if (remove(za->zn) != 0) {
+		_zip_error_set(&za->error, ZIP_ER_REMOVE, errno);
+		return -1;
+	    }
+	}
+	_zip_free(za);
+	return 0;
+    }	       
+
+    if ((filelist=(struct filelist *)malloc(sizeof(filelist[0])*survivors))
+	== NULL)
+	return -1;
+
+    if ((cd=_zip_cdir_new(survivors, &za->error)) == NULL) {
+	free(filelist);
+	return -1;
+    }
+
+    for (i=0; i<survivors; i++)
+	_zip_dirent_init(&cd->entry[i]);
+
+    /* archive comment is special for torrentzip */
+    if (zip_get_archive_flag(za, ZIP_AFL_TORRENT, 0)) {
+	cd->comment = _zip_memdup(TORRENT_SIG "XXXXXXXX",
+				  TORRENT_SIG_LEN + TORRENT_CRC_LEN,
+				  &za->error);
+	if (cd->comment == NULL) {
+	    _zip_cdir_free(cd);
+	    free(filelist);
+	    return -1;
+	}
+	cd->comment_len = TORRENT_SIG_LEN + TORRENT_CRC_LEN;
+    }
+    else if (zip_get_archive_flag(za, ZIP_AFL_TORRENT, ZIP_FL_UNCHANGED) == 0) {
+	if (_zip_cdir_set_comment(cd, za) == -1) {
+	    _zip_cdir_free(cd);
+	    free(filelist);
+	    return -1;
+	}
+    }
+
+    if ((temp=_zip_create_temp_output(za, &out)) == NULL) {
+	_zip_cdir_free(cd);
+	free(filelist);
+	return -1;
+    }
+
+
+    /* create list of files with index into original archive  */
+    for (i=j=0; i<za->nentry; i++) {
+	if (za->entry[i].state == ZIP_ST_DELETED)
+	    continue;
+
+	filelist[j].idx = i;
+	filelist[j].name = zip_get_name(za, i, 0);
+	j++;
+    }
+    if (zip_get_archive_flag(za, ZIP_AFL_TORRENT, 0))
+	qsort(filelist, survivors, sizeof(filelist[0]),
+	      _zip_torrentzip_cmp);
+
+    new_torrentzip = (zip_get_archive_flag(za, ZIP_AFL_TORRENT, 0) == 1
+		      && zip_get_archive_flag(za, ZIP_AFL_TORRENT,
+					      ZIP_FL_UNCHANGED) == 0);
+    error = 0;
+    for (j=0; j<survivors; j++) {
+	i = filelist[j].idx;
+
+	/* create new local directory entry */
+	if (ZIP_ENTRY_DATA_CHANGED(za->entry+i) || new_torrentzip) {
+	    _zip_dirent_init(&de);
+
+	    if (zip_get_archive_flag(za, ZIP_AFL_TORRENT, 0))
+		_zip_dirent_torrent_normalize(&de);
+		
+	    /* use it as central directory entry */
+	    memcpy(cd->entry+j, &de, sizeof(cd->entry[j]));
+
+	    /* set/update file name */
+	    if (za->entry[i].ch_filename == NULL) {
+		if (za->entry[i].state == ZIP_ST_ADDED) {
+		    de.filename = strdup("-");
+		    de.filename_len = 1;
+		    cd->entry[j].filename = "-";
+		    cd->entry[j].filename_len = 1;
+		}
+		else {
+		    de.filename = strdup(za->cdir->entry[i].filename);
+		    de.filename_len = strlen(de.filename);
+		    cd->entry[j].filename = za->cdir->entry[i].filename;
+		    cd->entry[j].filename_len = de.filename_len;
+		}
+	    }
+	}
+	else {
+	    /* copy existing directory entries */
+	    if (fseeko(za->zp, za->cdir->entry[i].offset, SEEK_SET) != 0) {
+		_zip_error_set(&za->error, ZIP_ER_SEEK, errno);
+		error = 1;
+		break;
+	    }
+	    if (_zip_dirent_read(&de, za->zp, NULL, NULL, 1,
+				 &za->error) != 0) {
+		error = 1;
+		break;
+	    }
+	    memcpy(cd->entry+j, za->cdir->entry+i, sizeof(cd->entry[j]));
+	    if (de.bitflags & ZIP_GPBF_DATA_DESCRIPTOR) {
+		de.crc = za->cdir->entry[i].crc;
+		de.comp_size = za->cdir->entry[i].comp_size;
+		de.uncomp_size = za->cdir->entry[i].uncomp_size;
+		de.bitflags &= ~ZIP_GPBF_DATA_DESCRIPTOR;
+		cd->entry[j].bitflags &= ~ZIP_GPBF_DATA_DESCRIPTOR;
+	    }
+	}
+
+	if (za->entry[i].ch_filename) {
+	    free(de.filename);
+	    if ((de.filename=strdup(za->entry[i].ch_filename)) == NULL) {
+		error = 1;
+		break;
+	    }
+	    de.filename_len = strlen(de.filename);
+	    cd->entry[j].filename = za->entry[i].ch_filename;
+	    cd->entry[j].filename_len = de.filename_len;
+	}
+
+	if (zip_get_archive_flag(za, ZIP_AFL_TORRENT, 0) == 0
+	    && za->entry[i].ch_comment_len != -1) {
+	    /* as the rest of cd entries, its malloc/free is done by za */
+	    cd->entry[j].comment = za->entry[i].ch_comment;
+	    cd->entry[j].comment_len = za->entry[i].ch_comment_len;
+	}
+
+	cd->entry[j].offset = ftello(out);
+
+	if (ZIP_ENTRY_DATA_CHANGED(za->entry+i) || new_torrentzip) {
+	    struct zip_source *zs;
+
+	    zs = NULL;
+	    if (!ZIP_ENTRY_DATA_CHANGED(za->entry+i)) {
+		if ((zs=zip_source_zip(za, za, i, ZIP_FL_RECOMPRESS, 0, -1))
+		    == NULL) {
+		    error = 1;
+		    break;
+		}
+	    }
+
+	    if (add_data(za, zs ? zs : za->entry[i].source, &de, out) < 0) {
+		error = 1;
+		break;
+	    }
+	    cd->entry[j].last_mod = de.last_mod;
+	    cd->entry[j].comp_method = de.comp_method;
+	    cd->entry[j].comp_size = de.comp_size;
+	    cd->entry[j].uncomp_size = de.uncomp_size;
+	    cd->entry[j].crc = de.crc;
+	}
+	else {
+	    if (_zip_dirent_write(&de, out, 1, &za->error) < 0) {
+		error = 1;
+		break;
+	    }
+	    /* we just read the local dirent, file is at correct position */
+	    if (copy_data(za->zp, cd->entry[j].comp_size, out,
+			  &za->error) < 0) {
+		error = 1;
+		break;
+	    }
+	}
+
+	_zip_dirent_finalize(&de);
+    }
+
+    free(filelist);
+
+    if (!error) {
+	if (write_cdir(za, cd, out) < 0)
+	    error = 1;
+    }
+   
+    /* pointers in cd entries are owned by za */
+    cd->nentry = 0;
+    _zip_cdir_free(cd);
+
+    if (error) {
+	_zip_dirent_finalize(&de);
+	fclose(out);
+	remove(temp);
+	free(temp);
+	return -1;
+    }
+
+    if (fclose(out) != 0) {
+	_zip_error_set(&za->error, ZIP_ER_CLOSE, errno);
+	remove(temp);
+	free(temp);
+	return -1;
+    }
+    
+    if (za->zp) {
+	fclose(za->zp);
+	za->zp = NULL;
+	reopen_on_error = 1;
+    }
+    if (_zip_rename(temp, za->zn) != 0) {
+	_zip_error_set(&za->error, ZIP_ER_RENAME, errno);
+	remove(temp);
+	free(temp);
+	if (reopen_on_error) {
+	    /* ignore errors, since we're already in an error case */
+	    za->zp = fopen(za->zn, "rb");
+	}
+	return -1;
+    }
+    mask = umask(0);
+    umask(mask);
+    chmod(za->zn, 0666&~mask);
+
+    _zip_free(za);
+    free(temp);
+    
+    return 0;
+}
+
+
+
+static int
+add_data(struct zip *za, struct zip_source *zs, struct zip_dirent *de, FILE *ft)
+{
+    off_t offstart, offend;
+    zip_source_callback cb;
+    void *ud;
+    struct zip_stat st;
+    
+    cb = zs->f;
+    ud = zs->ud;
+
+    if (cb(ud, &st, sizeof(st), ZIP_SOURCE_STAT) < (ssize_t)sizeof(st)) {
+	ch_set_error(&za->error, cb, ud);
+	return -1;
+    }
+
+    if (cb(ud, NULL, 0, ZIP_SOURCE_OPEN) < 0) {
+	ch_set_error(&za->error, cb, ud);
+	return -1;
+    }
+
+    offstart = ftello(ft);
+
+    if (_zip_dirent_write(de, ft, 1, &za->error) < 0)
+	return -1;
+
+    if (st.comp_method != ZIP_CM_STORE) {
+	if (add_data_comp(cb, ud, &st, ft, &za->error) < 0)
+	    return -1;
+    }
+    else {
+	if (add_data_uncomp(za, cb, ud, &st, ft) < 0)
+	    return -1;
+    }
+
+    if (cb(ud, NULL, 0, ZIP_SOURCE_CLOSE) < 0) {
+	ch_set_error(&za->error, cb, ud);
+	return -1;
+    }
+
+    offend = ftello(ft);
+
+    if (fseeko(ft, offstart, SEEK_SET) < 0) {
+	_zip_error_set(&za->error, ZIP_ER_SEEK, errno);
+	return -1;
+    }
+
+    
+    de->last_mod = st.mtime;
+    de->comp_method = st.comp_method;
+    de->crc = st.crc;
+    de->uncomp_size = st.size;
+    de->comp_size = st.comp_size;
+
+    if (zip_get_archive_flag(za, ZIP_AFL_TORRENT, 0))
+	_zip_dirent_torrent_normalize(de);
+
+    if (_zip_dirent_write(de, ft, 1, &za->error) < 0)
+	return -1;
+    
+    if (fseeko(ft, offend, SEEK_SET) < 0) {
+	_zip_error_set(&za->error, ZIP_ER_SEEK, errno);
+	return -1;
+    }
+
+    return 0;
+}
+
+
+
+static int
+add_data_comp(zip_source_callback cb, void *ud, struct zip_stat *st,FILE *ft,
+	      struct zip_error *error)
+{
+    char buf[BUFSIZE];
+    ssize_t n;
+
+    st->comp_size = 0;
+    while ((n=cb(ud, buf, sizeof(buf), ZIP_SOURCE_READ)) > 0) {
+	if (fwrite(buf, 1, n, ft) != (size_t)n) {
+	    _zip_error_set(error, ZIP_ER_WRITE, errno);
+	    return -1;
+	}
+	
+	st->comp_size += n;
+    }
+    if (n < 0) {
+	ch_set_error(error, cb, ud);
+	return -1;
+    }	
+
+    return 0;
+}
+
+
+
+static int
+add_data_uncomp(struct zip *za, zip_source_callback cb, void *ud,
+		struct zip_stat *st, FILE *ft)
+{
+    char b1[BUFSIZE], b2[BUFSIZE];
+    int end, flush, ret;
+    ssize_t n;
+    size_t n2;
+    z_stream zstr;
+    int mem_level;
+
+    st->comp_method = ZIP_CM_DEFLATE;
+    st->comp_size = st->size = 0;
+    st->crc = crc32(0, NULL, 0);
+
+    zstr.zalloc = Z_NULL;
+    zstr.zfree = Z_NULL;
+    zstr.opaque = NULL;
+    zstr.avail_in = 0;
+    zstr.avail_out = 0;
+
+    if (zip_get_archive_flag(za, ZIP_AFL_TORRENT, 0))
+	mem_level = TORRENT_MEM_LEVEL;
+    else
+	mem_level = MAX_MEM_LEVEL;
+
+    /* -MAX_WBITS: undocumented feature of zlib to _not_ write a zlib header */
+    deflateInit2(&zstr, Z_BEST_COMPRESSION, Z_DEFLATED, -MAX_WBITS, mem_level,
+		 Z_DEFAULT_STRATEGY);
+
+    zstr.next_out = (Bytef *)b2;
+    zstr.avail_out = sizeof(b2);
+    zstr.next_in = NULL;
+    zstr.avail_in = 0;
+
+    flush = 0;
+    end = 0;
+    while (!end) {
+	if (zstr.avail_in == 0 && !flush) {
+	    if ((n=cb(ud, b1, sizeof(b1), ZIP_SOURCE_READ)) < 0) {
+		ch_set_error(&za->error, cb, ud);
+		deflateEnd(&zstr);
+		return -1;
+	    }
+	    if (n > 0) {
+		zstr.avail_in = n;
+		zstr.next_in = (Bytef *)b1;
+		st->size += n;
+		st->crc = crc32(st->crc, (Bytef *)b1, n);
+	    }
+	    else
+		flush = Z_FINISH;
+	}
+
+	ret = deflate(&zstr, flush);
+	if (ret != Z_OK && ret != Z_STREAM_END) {
+	    _zip_error_set(&za->error, ZIP_ER_ZLIB, ret);
+	    return -1;
+	}
+	
+	if (zstr.avail_out != sizeof(b2)) {
+	    n2 = sizeof(b2) - zstr.avail_out;
+	    
+	    if (fwrite(b2, 1, n2, ft) != n2) {
+		_zip_error_set(&za->error, ZIP_ER_WRITE, errno);
+		return -1;
+	    }
+	
+	    zstr.next_out = (Bytef *)b2;
+	    zstr.avail_out = sizeof(b2);
+	    st->comp_size += n2;
+	}
+
+	if (ret == Z_STREAM_END) {
+	    deflateEnd(&zstr);
+	    end = 1;
+	}
+    }
+
+    return 0;
+}
+
+
+
+static void
+ch_set_error(struct zip_error *error, zip_source_callback cb, void *ud)
+{
+    int e[2];
+
+    if ((cb(ud, e, sizeof(e), ZIP_SOURCE_ERROR)) < (ssize_t)sizeof(e)) {
+	error->zip_err = ZIP_ER_INTERNAL;
+	error->sys_err = 0;
+    }
+    else {
+	error->zip_err = e[0];
+	error->sys_err = e[1];
+    }
+}
+
+
+
+static int
+copy_data(FILE *fs, off_t len, FILE *ft, struct zip_error *error)
+{
+    char buf[BUFSIZE];
+    int n, nn;
+
+    if (len == 0)
+	return 0;
+
+    while (len > 0) {
+	nn = len > sizeof(buf) ? sizeof(buf) : len;
+	if ((n=fread(buf, 1, nn, fs)) < 0) {
+	    _zip_error_set(error, ZIP_ER_READ, errno);
+	    return -1;
+	}
+	else if (n == 0) {
+	    _zip_error_set(error, ZIP_ER_EOF, 0);
+	    return -1;
+	}
+
+	if (fwrite(buf, 1, n, ft) != (size_t)n) {
+	    _zip_error_set(error, ZIP_ER_WRITE, errno);
+	    return -1;
+	}
+	
+	len -= n;
+    }
+
+    return 0;
+}
+
+
+
+static int
+write_cdir(struct zip *za, struct zip_cdir *cd, FILE *out)
+{
+    off_t offset;
+    uLong crc;
+    char buf[TORRENT_CRC_LEN+1];
+    
+    if (_zip_cdir_write(cd, out, &za->error) < 0)
+	return -1;
+    
+    if (zip_get_archive_flag(za, ZIP_AFL_TORRENT, 0) == 0)
+	return 0;
+
+
+    /* fix up torrentzip comment */
+
+    offset = ftello(out);
+
+    if (_zip_filerange_crc(out, cd->offset, cd->size, &crc, &za->error) < 0)
+	return -1;
+
+    snprintf(buf, sizeof(buf), "%08lX", (long)crc);
+
+    if (fseeko(out, offset-TORRENT_CRC_LEN, SEEK_SET) < 0) {
+	_zip_error_set(&za->error, ZIP_ER_SEEK, errno);
+	return -1;
+    }
+
+    if (fwrite(buf, TORRENT_CRC_LEN, 1, out) != 1) {
+	_zip_error_set(&za->error, ZIP_ER_WRITE, errno);
+	return -1;
+    }
+
+    return 0;
+}
+
+
+
+static int
+_zip_cdir_set_comment(struct zip_cdir *dest, struct zip *src)
+{
+    if (src->ch_comment_len != -1) {
+	dest->comment = _zip_memdup(src->ch_comment,
+				    src->ch_comment_len, &src->error);
+	if (dest->comment == NULL)
+	    return -1;
+	dest->comment_len = src->ch_comment_len;
+    } else {
+	if (src->cdir && src->cdir->comment) {
+	    dest->comment = _zip_memdup(src->cdir->comment,
+					src->cdir->comment_len, &src->error);
+	    if (dest->comment == NULL)
+		return -1;
+	    dest->comment_len = src->cdir->comment_len;
+	}
+    }
+
+    return 0;
+}
+
+
+
+static int
+_zip_changed(struct zip *za, int *survivorsp)
+{
+    int changed, i, survivors;
+
+    changed = survivors = 0;
+
+    if (za->ch_comment_len != -1
+	|| za->ch_flags != za->flags)
+	changed = 1;
+
+    for (i=0; i<za->nentry; i++) {
+	if ((za->entry[i].state != ZIP_ST_UNCHANGED)
+	    || (za->entry[i].ch_comment_len != -1))
+	    changed = 1;
+	if (za->entry[i].state != ZIP_ST_DELETED)
+	    survivors++;
+    }
+
+    *survivorsp = survivors;
+
+    return changed;
+}
+
+
+
+static char *
+_zip_create_temp_output(struct zip *za, FILE **outp)
+{
+    char *temp;
+    int tfd;
+    FILE *tfp;
+    
+    if ((temp=(char *)malloc(strlen(za->zn)+8)) == NULL) {
+	_zip_error_set(&za->error, ZIP_ER_MEMORY, 0);
+	return NULL;
+    }
+
+    sprintf(temp, "%s.XXXXXX", za->zn);
+
+    if ((tfd=mkstemp(temp)) == -1) {
+	_zip_error_set(&za->error, ZIP_ER_TMPOPEN, errno);
+	free(temp);
+	return NULL;
+    }
+    
+    if ((tfp=fdopen(tfd, "r+b")) == NULL) {
+	_zip_error_set(&za->error, ZIP_ER_TMPOPEN, errno);
+	close(tfd);
+	remove(temp);
+	free(temp);
+	return NULL;
+    }
+
+    *outp = tfp;
+    return temp;
+}
+
+
+
+static int
+_zip_torrentzip_cmp(const void *a, const void *b)
+{
+    return strcasecmp(((const struct filelist *)a)->name,
+		      ((const struct filelist *)b)->name);
+}