5d62878859
amd64 plugin support. 64-bit plugin hacking by myself and Jung-uk Kim. Credit for the majority of the 1.6 BSD porting goes to Greg Lewis who back ported my 1.7 hotspot patches to 1.6 and forward ported the 1.5 j2se patches to 1.6. Thanks to several testers who provided helpful feedback. okay ian@
119 lines
3.4 KiB
C
119 lines
3.4 KiB
C
/*
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* Copyright (C) 2007 Greg Lewis. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/types.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#ifndef BUFSIZ
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#define BUFSIZ 0x10000
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#endif
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int
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main(int argc, char* argv[]) {
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char *key;
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char *oname;
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char buf[BUFSIZ];
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size_t keylen, olen;
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int ifd, ofd, i, fileoff = 0, bufoff = 0, buflen = 0, eof = 0;
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ssize_t bytes;
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if (argc < 3) {
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errx(1, "Usage: x_x2zip <key> <file>");
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}
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// Key
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key = argv[1];
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keylen = strlen(key);
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// Open input file
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if ((ifd = open(argv[2], O_RDONLY)) == -1) {
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err(1, "Can't open input file %s", argv[2]);
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}
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// Open output file
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olen = strlen(argv[2]) + 5;
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if ((oname = (char *) malloc(olen)) == NULL) {
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err(1, "Can't create output file name");
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}
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if (strlcpy(oname, argv[2], olen) >= olen) {
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err(1, "Can't create output file name");
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}
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if (strlcat(oname, ".zip", olen) >= olen) {
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err(1, "Can't create output file name");
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}
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if ((ofd = open(oname,
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O_CREAT | O_TRUNC | O_WRONLY, S_IRUSR | S_IWUSR)) == -1) {
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err(1, "Can't open output file %s", oname);
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}
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free(oname);
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while (!eof) {
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// Read into the buffer
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bufoff = 0;
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buflen = 0;
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while (1) {
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if (buflen >= BUFSIZ) {
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break;
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}
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if ((bytes = read(ifd, buf, BUFSIZ - buflen)) == -1) {
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err(1, "Error reading input file");
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}
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if (!bytes) {
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eof = 1;
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break;
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}
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buflen += bytes;
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}
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// Decrypt
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for (i = 0; i < buflen; i++) {
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buf[i] = buf[i] ^ key[(fileoff + i) % keylen];
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}
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// Update file offset
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fileoff += buflen;
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// Output the buffer
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bufoff = 0;
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while (bufoff < buflen) {
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if ((bytes = write(ofd, buf + bufoff, buflen - bufoff)) == -1) {
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err(1, "Error writing output file");
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}
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bufoff += bytes;
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}
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}
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return 0;
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}
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