Remove broken impress backend

1 files changed, 0 insertions, 349 deletions

diff --git a/backend/impress/zip.c b/backend/impress/zip.c
deleted file mode 100644
index b1f25c8c..00000000
--- a/backend/impress/zip.c
+++ /dev/null
@@ -1,349 +0,0 @@
-/* imposter (OO.org Impress viewer)
-** Copyright (C) 2003-2005 Gurer Ozen
-** This code is free software; you can redistribute it and/or
-** modify it under the terms of GNU General Public License.
-*/
-
-#include <config.h>
-#include "common.h"
-#include "zip.h"
-#include <zlib.h>
-#define _(x) x
-
-typedef unsigned long ulong;
-
-enum {
-	ZIP_OK = 0,
-	ZIP_NOMEM,
-	ZIP_NOSIG,
-	ZIP_BADZIP,
-	ZIP_NOMULTI,
-	ZIP_EOPEN,
-	ZIP_EREAD,
-	ZIP_NOFILE
-};
-
-struct zipfile {
-	struct zipfile *next;
-	char *name;
-	ulong crc;
-	ulong zip_size;
-	ulong real_size;
-	ulong pos;
-};
-
-struct zip_struct {
-	FILE *f;
-	struct zipfile *files;
-	ulong cd_pos;
-	ulong cd_size;
-	ulong cd_offset;
-	ulong head_size;
-	ulong rem_size;
-	ulong nr_files;
-};
-
-char *
-zip_error (int err)
-{
-	char *ret;
-
-	switch (err) {
-		case ZIP_OK:
-			ret = _("No error");
-			break;
-		case ZIP_NOMEM:
-			ret = _("Not enough memory");
-			break;
-		case ZIP_NOSIG:
-			ret = _("Cannot find ZIP signature");
-			break;
-		case ZIP_BADZIP:
-			ret = _("Invalid ZIP file");
-			break;
-		case ZIP_NOMULTI:
-			ret = _("Multi file ZIPs are not supported");
-			break;
-		case ZIP_EOPEN:
-			ret = _("Cannot open the file");
-			break;
-		case ZIP_EREAD:
-			ret = _("Cannot read data from file");
-			break;
-		case ZIP_NOFILE:
-			ret = _("Cannot find file in the ZIP archive");
-			break;
-		default:
-			ret = _("Unknown error");
-			break;
-	}
-	return ret;
-}
-
-static int
-find_cd (zip *z)
-{
-	FILE *f;
-	char *buf;
-	ulong size, pos, i, flag;
-
-	f = z->f;
-	if (fseek (f, 0, SEEK_END) != 0) return 1;
-	size = ftell (f);
-	if (size < 0xffff) pos = 0; else pos = size - 0xffff;
-	buf = malloc (size - pos + 1);
-	if (!buf) return 1;
-	if (fseek (f, pos, SEEK_SET) != 0) {
-		free (buf);
-		return 1;
-	}
-	if (fread (buf, size - pos, 1, f) != 1) {
-		free (buf);
-		return 1;
-	}
-	flag = 0;
-	for (i = size - pos - 3; i > 0; i--) {
-		if (buf[i] == 0x50 && buf[i+1] == 0x4b && buf[i+2] == 0x05 && buf[i+3] == 0x06) {
-			z->cd_pos = i + pos;
-			flag = 1;
-			break;
-		}
-	}
-	free (buf);
-	if (flag != 1) return 1;
-	return 0;
-}
-
-static unsigned long
-get_long (unsigned char *buf)
-{
-	return buf[0] + (buf[1] << 8) + (buf[2] << 16) + (buf[3] << 24);
-}
-
-static unsigned long
-get_word (unsigned char *buf)
-{
-	return buf[0] + (buf[1] << 8);
-}
-
-static int
-list_files (zip *z)
-{
-	unsigned char buf[46];
-	struct zipfile *zfile;
-	ulong pat, fn_size;
-	int nr = 0;
-
-	pat = z->cd_offset;
-	while (nr < z->nr_files) {
-		fseek (z->f, pat + z->head_size, SEEK_SET);
-
-		if (fread (buf, 46, 1, z->f) != 1) return ZIP_EREAD;
-		if (get_long (buf) != 0x02014b50) return ZIP_BADZIP;
-
-		zfile = malloc (sizeof (struct zipfile));
-		if (!zfile) return ZIP_NOMEM;
-		memset (zfile, 0, sizeof (struct zipfile));
-
-		zfile->crc = get_long (buf + 16);
-		zfile->zip_size = get_long (buf + 20);
-		zfile->real_size = get_long (buf + 24);
-		fn_size = get_word (buf + 28);
-		zfile->pos = get_long (buf + 42);
-
-		zfile->name = malloc (fn_size + 1);
-		if (!zfile->name) {
-			free (zfile);
-			return ZIP_NOMEM;
-		}
-		fread (zfile->name, fn_size, 1, z->f);
-		zfile->name[fn_size] = '\0';
-
-		zfile->next = z->files;
-		z->files = zfile;
-
-		pat += 0x2e + fn_size + get_word (buf + 30) + get_word (buf + 32);
-		nr++;
-	}
-	return ZIP_OK;
-}
-
-zip *
-zip_open (const char *fname, int *err)
-{
-	unsigned char buf[22];
-	zip *z;
-	FILE *f;
-
-	f = fopen (fname, "rb");
-	if (NULL == f) {
-		*err = ZIP_EOPEN;
-		return NULL;
-	}
-
-	z = malloc (sizeof (zip));
-	memset (z, 0, sizeof (zip));
-	z->f = f;
-
-	if (find_cd (z)) {
-		zip_close (z);
-		*err = ZIP_NOSIG;
-		return NULL;
-	}
-
-	fseek (f, z->cd_pos, SEEK_SET);
-	if (fread (buf, 22, 1, f) != 1) {
-		zip_close (z);
-		*err = ZIP_EREAD;
-		return NULL;
-	}
-	z->nr_files = get_word (buf + 10);
-	if (get_word (buf + 8) != z->nr_files) {
-		zip_close (z);
-		*err =  ZIP_NOMULTI;
-		return NULL;
-	}
-	z->cd_size = get_long (buf + 12);
-	z->cd_offset = get_long (buf + 16);
-	z->rem_size = get_word (buf + 20);
-	z->head_size = z->cd_pos - (z->cd_offset + z->cd_size);
-
-	*err = list_files (z);
-	if (*err != ZIP_OK) {
-		zip_close (z);
-		return NULL;
-	}
-
-	*err = ZIP_OK;
-	return z;
-}
-
-void
-zip_close (zip *z)
-{
-	struct zipfile *zfile, *tmp;
-
-	zfile = z->files;
-	while (zfile) {
-		tmp = zfile->next;
-		if (zfile->name) free (zfile->name);
-		free (zfile);
-		zfile = tmp;
-	}
-	z->files = NULL;
-	if (z->f) fclose (z->f);
-	z->f = NULL;
-}
-
-static struct zipfile *
-find_file (zip *z, const char *name)
-{
-	struct zipfile *zfile;
-
-	zfile = z->files;
-	while (zfile) {
-		if (strcmp (zfile->name, name) == 0) return zfile;
-		zfile = zfile->next;
-	}
-	return NULL;
-}
-
-static int
-seek_file (zip *z, struct zipfile *zfile)
-{
-	unsigned char buf[30];
-
-	fseek (z->f, zfile->pos + z->head_size, SEEK_SET);
-	if (fread (buf, 30, 1, z->f) != 1) return ZIP_EREAD;
-	if (get_long (buf) != 0x04034b50) return ZIP_BADZIP;
-	fseek (z->f, get_word (buf + 26) + get_word (buf + 28), SEEK_CUR);
-	return ZIP_OK;
-}
-
-iks *
-zip_load_xml (zip *z, const char *name, int *err)
-{
-	iksparser *prs;
-	char *real_buf;
-	iks *x;
-	struct zipfile *zfile;
-
-	*err = ZIP_OK;
-
-	zfile = find_file (z, name);
-	if (!zfile) {
-		*err = ZIP_NOFILE;
-		return NULL;
-	}
-
-	seek_file (z, zfile);
-
-	real_buf = malloc (zfile->real_size + 1);
-	if (zfile->zip_size < zfile->real_size) {
-		char *zip_buf;
-		z_stream zs;
-		zs.zalloc = NULL;
-		zs.zfree = NULL;
-		zs.opaque = NULL;
-		zip_buf = malloc (zfile->zip_size);
-		fread (zip_buf, zfile->zip_size, 1, z->f);
-		zs.next_in = zip_buf;
-		zs.avail_in = zfile->zip_size;
-		zs.next_out = real_buf;
-		zs.avail_out = zfile->real_size;
-		inflateInit2 (&zs, -MAX_WBITS);
-		inflate (&zs, Z_FINISH);
-		inflateEnd (&zs);
-		free (zip_buf);
-	} else {
-		fread (real_buf, zfile->real_size, 1, z->f);
-	}
-
-	real_buf[zfile->real_size] = '\0';
-	prs = iks_dom_new (&x);
-	iks_parse (prs, real_buf, zfile->real_size, 1);
-	iks_parser_delete (prs);
-	free (real_buf);
-	return x;
-}
-
-unsigned long zip_get_size (zip *z, const char *name)
-{
-	struct zipfile *zf;
-
-	zf = find_file (z, name);
-	if (!zf) return 0;
-	return zf->real_size;
-}
-
-int zip_load (zip *z, const char *name, char *buf)
-{
-	struct zipfile *zfile;
-
-	zfile = find_file (z, name);
-	if (!zfile) return ZIP_NOFILE;
-
-	seek_file (z, zfile);
-
-	if (zfile->zip_size < zfile->real_size) {
-		char *zip_buf;
-		z_stream zs;
-		zs.zalloc = NULL;
-		zs.zfree = NULL;
-		zs.opaque = NULL;
-		zip_buf = malloc (zfile->zip_size);
-		fread (zip_buf, zfile->zip_size, 1, z->f);
-		zs.next_in = zip_buf;
-		zs.avail_in = zfile->zip_size;
-		zs.next_out = buf;
-		zs.avail_out = zfile->real_size;
-		inflateInit2 (&zs, -MAX_WBITS);
-		inflate (&zs, Z_FINISH);
-		inflateEnd (&zs);
-		free (zip_buf);
-	} else {
-		fread (buf, zfile->real_size, 1, z->f);
-	}
-
-	return ZIP_OK;
-}