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/*
* Copyright (c) 2000,2001,2002 Guido Draheim <guidod@gmx.de>
* Use freely under the restrictions of the ZLIB License
*/
#include <zzip/zzip.h>
#include <stdio.h>
#include <stdlib.h>
#ifndef O_BINARY
#define O_BINARY 0
#endif
static const char usage[] = /* .. */
{" zzipself <file>... \n"
" - prints the file to stdout, so you may want to redirect the output; \n"
" the file can be a normal file or an inflated part of a zip-archive, \n"
" however in this case the zip-archive happens to be the executed\n"
" binary itself, as if this program is a self-extract header of a zip. \n"
" zzipself README # same as # zzcat zzipself/README \n"};
int
main(int argc, char** argv)
{
int status = 0;
int argn;
if (argc <= 1) {
printf(usage);
exit(0);
}
for (argn = 1; argn < argc; argn++) {
/* ZZIP_FILE* fp = zzip_fopen (argv[0]+"/"+argv[argn], "rbi"); */
/* .... = zzip_open (argv[0]+"/"+argv[argn], O_RDONLY|O_BINARY,
* ZZIP_CASELESS|ZZIP_ONLYZIP, ext, 0); */
static const char* ext[] = {"", ".exe", ".EXE", 0};
ZZIP_FILE* fp;
ZZIP_DIR* zip = zzip_opendir_ext_io(argv[0], /* .. */
ZZIP_CASELESS | ZZIP_ONLYZIP, ext, 0);
if (! zip) {
perror(argv[0]);
break;
}
fp = zzip_file_open(zip, argv[argn], ZZIP_CASELESS);
if (! fp) {
perror(argv[argn]);
continue;
}
else {
char buf[17];
int n;
/* read chunks of 16 bytes into buf and print them to stdout */
while (0 < (n = zzip_read(fp, buf, 16))) {
buf[n] = '\0';
#ifdef STDOUT_FILENO
write(STDOUT_FILENO, buf, n);
#else
fwrite(buf, 1, n, stdout);
#endif
}
if (n == -1) {
perror(argv[argn]);
status++;
}
}
zzip_file_close(fp);
zzip_closedir(zip);
}
return status;
}
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