From 0ccbc83f09c65cdb252c63ee110bac7e91f4c7bd Mon Sep 17 00:00:00 2001 From: Stefano Karapetsas Date: Sat, 27 Apr 2013 20:33:21 +0200 Subject: Remove broken impress backend --- backend/impress/zip.c | 349 -------------------------------------------------- 1 file changed, 349 deletions(-) delete mode 100644 backend/impress/zip.c (limited to 'backend/impress/zip.c') 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 -#include "common.h" -#include "zip.h" -#include -#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; -} -- cgit v1.2.1