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/*
* Copyright (c) 2003 Guido Draheim <guidod@gmx.de>
* Use freely under the restrictions of the ZLIB license.
*
* This file is used as an example to clarify zzipfseeko api usage.
*/
#include <zzip/fseeko.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <zzip/__mkdir.h>
#include <zzip/__string.h>
#include <zzip/__debug.h>
#include <zzip/__fnmatch.h>
#include "unzzipcat-zip.h"
#include "unzzip-states.h"
static int exitcode(int e)
{
return EXIT_ERRORS;
}
static void unzzip_big_entry_fprint(ZZIP_ENTRY* entry, FILE* out)
{
ZZIP_ENTRY_FILE* file = zzip_entry_fopen (entry, 0);
if (file)
{
char buffer[1024]; int len;
while ((len = zzip_entry_fread (buffer, 1024, 1, file)))
{
DBG2("entry read %i", len);
fwrite (buffer, len, 1, out);
}
DBG2("entry done %s", strerror(errno));
zzip_entry_fclose (file);
} else
{
DBG2("could not open entry: %s", strerror(errno));
}
}
static void unzzip_cat_file(FILE* disk, char* name, FILE* out)
{
ZZIP_ENTRY_FILE* file = zzip_entry_ffile (disk, name);
if (file)
{
char buffer[1024]; int len;
while ((len = zzip_entry_fread (buffer, 1024, 1, file)))
fwrite (buffer, len, 1, out);
zzip_entry_fclose (file);
}
}
static void makedirs(const char* name)
{
char* p = strrchr(name, '/');
if (p) {
char* dir_name = _zzip_strndup(name, p-name);
makedirs(dir_name);
free (dir_name);
}
if (_zzip_mkdir(name, 0775) == -1 && errno != EEXIST)
{
DBG3("while mkdir %s : %s", name, strerror(errno));
}
errno = 0;
}
static FILE* create_fopen(char* name, char* mode, int subdirs)
{
if (subdirs)
{
char* p = strrchr(name, '/');
if (p) {
char* dir_name = _zzip_strndup(name, p-name);
makedirs(dir_name);
free (dir_name);
}
}
return fopen(name, mode);
}
static int unzzip_cat (int argc, char ** argv, int extract)
{
int done = 0;
int argn;
FILE* disk;
disk = fopen (argv[1], "rb");
if (! disk) {
perror(argv[1]);
return exitcode(errno);
}
if (argc == 2)
{ /* print directory list */
ZZIP_ENTRY* entry = zzip_entry_findfirst(disk);
for (; entry ; entry = zzip_entry_findnext(entry))
{
char* name = zzip_entry_strdup_name (entry);
FILE* out = stdout;
if (! name) {
done = EXIT_WARNINGS;
continue;
}
if (extract) out = create_fopen(name, "wb", 1);
if (! out) {
if (errno != EISDIR) done = EXIT_ERRORS;
continue;
}
unzzip_cat_file (disk, name, out);
if (extract) fclose(out);
free (name);
}
return done;
}
if (argc == 3 && !extract)
{ /* list from one spec */
ZZIP_ENTRY* entry = 0;
while ((entry = zzip_entry_findmatch(disk, argv[2], entry, 0, 0)))
{
unzzip_big_entry_fprint (entry, stdout);
}
return 0;
}
for (argn=1; argn < argc; argn++)
{ /* list only the matching entries - each in order of commandline */
ZZIP_ENTRY* entry = zzip_entry_findfirst(disk);
for (; entry ; entry = zzip_entry_findnext(entry))
{
char* name = zzip_entry_strdup_name (entry);
DBG3(".. check '%s' to zip '%s'", argv[argn], name);
if (! _zzip_fnmatch (argv[argn], name,
FNM_NOESCAPE|FNM_PATHNAME|FNM_PERIOD))
{
FILE* out = stdout;
if (extract) out = create_fopen(name, "wb", 1);
if (! out) {
if (errno != EISDIR) done = EXIT_ERRORS;
continue;
}
unzzip_cat_file (disk, name, out);
if (extract) fclose(out);
break; /* match loop */
}
free (name);
}
}
return done;
}
int unzzip_print (int argc, char ** argv)
{
return unzzip_cat(argc, argv, 0);
}
int unzzip_extract (int argc, char ** argv)
{
return unzzip_cat(argc, argv, 1);
}
/*
* Local variables:
* c-file-style: "stroustrup"
* End:
*/
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