mirror of
https://github.com/hashcat/hashcat.git
synced 2024-12-24 07:28:10 +00:00
652 lines
15 KiB
C
652 lines
15 KiB
C
|
/* minigzip.c -- simulate gzip using the zlib compression library
|
||
|
* Copyright (C) 1995-2006, 2010, 2011, 2016 Jean-loup Gailly
|
||
|
* For conditions of distribution and use, see copyright notice in zlib.h
|
||
|
*/
|
||
|
|
||
|
/*
|
||
|
* minigzip is a minimal implementation of the gzip utility. This is
|
||
|
* only an example of using zlib and isn't meant to replace the
|
||
|
* full-featured gzip. No attempt is made to deal with file systems
|
||
|
* limiting names to 14 or 8+3 characters, etc... Error checking is
|
||
|
* very limited. So use minigzip only for testing; use gzip for the
|
||
|
* real thing. On MSDOS, use only on file names without extension
|
||
|
* or in pipe mode.
|
||
|
*/
|
||
|
|
||
|
/* @(#) $Id$ */
|
||
|
|
||
|
#include "zlib.h"
|
||
|
#include <stdio.h>
|
||
|
|
||
|
#ifdef STDC
|
||
|
# include <string.h>
|
||
|
# include <stdlib.h>
|
||
|
#endif
|
||
|
|
||
|
#ifdef USE_MMAP
|
||
|
# include <sys/types.h>
|
||
|
# include <sys/mman.h>
|
||
|
# include <sys/stat.h>
|
||
|
#endif
|
||
|
|
||
|
#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__)
|
||
|
# include <fcntl.h>
|
||
|
# include <io.h>
|
||
|
# ifdef UNDER_CE
|
||
|
# include <stdlib.h>
|
||
|
# endif
|
||
|
# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
|
||
|
#else
|
||
|
# define SET_BINARY_MODE(file)
|
||
|
#endif
|
||
|
|
||
|
#if defined(_MSC_VER) && _MSC_VER < 1900
|
||
|
# define snprintf _snprintf
|
||
|
#endif
|
||
|
|
||
|
#ifdef VMS
|
||
|
# define unlink delete
|
||
|
# define GZ_SUFFIX "-gz"
|
||
|
#endif
|
||
|
#ifdef RISCOS
|
||
|
# define unlink remove
|
||
|
# define GZ_SUFFIX "-gz"
|
||
|
# define fileno(file) file->__file
|
||
|
#endif
|
||
|
#if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
|
||
|
# include <unix.h> /* for fileno */
|
||
|
#endif
|
||
|
|
||
|
#if !defined(Z_HAVE_UNISTD_H) && !defined(_LARGEFILE64_SOURCE)
|
||
|
#ifndef WIN32 /* unlink already in stdio.h for WIN32 */
|
||
|
extern int unlink OF((const char *));
|
||
|
#endif
|
||
|
#endif
|
||
|
|
||
|
#if defined(UNDER_CE)
|
||
|
# include <windows.h>
|
||
|
# define perror(s) pwinerror(s)
|
||
|
|
||
|
/* Map the Windows error number in ERROR to a locale-dependent error
|
||
|
message string and return a pointer to it. Typically, the values
|
||
|
for ERROR come from GetLastError.
|
||
|
|
||
|
The string pointed to shall not be modified by the application,
|
||
|
but may be overwritten by a subsequent call to strwinerror
|
||
|
|
||
|
The strwinerror function does not change the current setting
|
||
|
of GetLastError. */
|
||
|
|
||
|
static char *strwinerror (error)
|
||
|
DWORD error;
|
||
|
{
|
||
|
static char buf[1024];
|
||
|
|
||
|
wchar_t *msgbuf;
|
||
|
DWORD lasterr = GetLastError();
|
||
|
DWORD chars = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM
|
||
|
| FORMAT_MESSAGE_ALLOCATE_BUFFER,
|
||
|
NULL,
|
||
|
error,
|
||
|
0, /* Default language */
|
||
|
(LPVOID)&msgbuf,
|
||
|
0,
|
||
|
NULL);
|
||
|
if (chars != 0) {
|
||
|
/* If there is an \r\n appended, zap it. */
|
||
|
if (chars >= 2
|
||
|
&& msgbuf[chars - 2] == '\r' && msgbuf[chars - 1] == '\n') {
|
||
|
chars -= 2;
|
||
|
msgbuf[chars] = 0;
|
||
|
}
|
||
|
|
||
|
if (chars > sizeof (buf) - 1) {
|
||
|
chars = sizeof (buf) - 1;
|
||
|
msgbuf[chars] = 0;
|
||
|
}
|
||
|
|
||
|
wcstombs(buf, msgbuf, chars + 1);
|
||
|
LocalFree(msgbuf);
|
||
|
}
|
||
|
else {
|
||
|
sprintf(buf, "unknown win32 error (%ld)", error);
|
||
|
}
|
||
|
|
||
|
SetLastError(lasterr);
|
||
|
return buf;
|
||
|
}
|
||
|
|
||
|
static void pwinerror (s)
|
||
|
const char *s;
|
||
|
{
|
||
|
if (s && *s)
|
||
|
fprintf(stderr, "%s: %s\n", s, strwinerror(GetLastError ()));
|
||
|
else
|
||
|
fprintf(stderr, "%s\n", strwinerror(GetLastError ()));
|
||
|
}
|
||
|
|
||
|
#endif /* UNDER_CE */
|
||
|
|
||
|
#ifndef GZ_SUFFIX
|
||
|
# define GZ_SUFFIX ".gz"
|
||
|
#endif
|
||
|
#define SUFFIX_LEN (sizeof(GZ_SUFFIX)-1)
|
||
|
|
||
|
#define BUFLEN 16384
|
||
|
#define MAX_NAME_LEN 1024
|
||
|
|
||
|
#ifdef MAXSEG_64K
|
||
|
# define local static
|
||
|
/* Needed for systems with limitation on stack size. */
|
||
|
#else
|
||
|
# define local
|
||
|
#endif
|
||
|
|
||
|
#ifdef Z_SOLO
|
||
|
/* for Z_SOLO, create simplified gz* functions using deflate and inflate */
|
||
|
|
||
|
#if defined(Z_HAVE_UNISTD_H) || defined(Z_LARGE)
|
||
|
# include <unistd.h> /* for unlink() */
|
||
|
#endif
|
||
|
|
||
|
void *myalloc OF((void *, unsigned, unsigned));
|
||
|
void myfree OF((void *, void *));
|
||
|
|
||
|
void *myalloc(q, n, m)
|
||
|
void *q;
|
||
|
unsigned n, m;
|
||
|
{
|
||
|
(void)q;
|
||
|
return calloc(n, m);
|
||
|
}
|
||
|
|
||
|
void myfree(q, p)
|
||
|
void *q, *p;
|
||
|
{
|
||
|
(void)q;
|
||
|
free(p);
|
||
|
}
|
||
|
|
||
|
typedef struct gzFile_s {
|
||
|
FILE *file;
|
||
|
int write;
|
||
|
int err;
|
||
|
char *msg;
|
||
|
z_stream strm;
|
||
|
} *gzFile;
|
||
|
|
||
|
gzFile gzopen OF((const char *, const char *));
|
||
|
gzFile gzdopen OF((int, const char *));
|
||
|
gzFile gz_open OF((const char *, int, const char *));
|
||
|
|
||
|
gzFile gzopen(path, mode)
|
||
|
const char *path;
|
||
|
const char *mode;
|
||
|
{
|
||
|
return gz_open(path, -1, mode);
|
||
|
}
|
||
|
|
||
|
gzFile gzdopen(fd, mode)
|
||
|
int fd;
|
||
|
const char *mode;
|
||
|
{
|
||
|
return gz_open(NULL, fd, mode);
|
||
|
}
|
||
|
|
||
|
gzFile gz_open(path, fd, mode)
|
||
|
const char *path;
|
||
|
int fd;
|
||
|
const char *mode;
|
||
|
{
|
||
|
gzFile gz;
|
||
|
int ret;
|
||
|
|
||
|
gz = malloc(sizeof(struct gzFile_s));
|
||
|
if (gz == NULL)
|
||
|
return NULL;
|
||
|
gz->write = strchr(mode, 'w') != NULL;
|
||
|
gz->strm.zalloc = myalloc;
|
||
|
gz->strm.zfree = myfree;
|
||
|
gz->strm.opaque = Z_NULL;
|
||
|
if (gz->write)
|
||
|
ret = deflateInit2(&(gz->strm), -1, 8, 15 + 16, 8, 0);
|
||
|
else {
|
||
|
gz->strm.next_in = 0;
|
||
|
gz->strm.avail_in = Z_NULL;
|
||
|
ret = inflateInit2(&(gz->strm), 15 + 16);
|
||
|
}
|
||
|
if (ret != Z_OK) {
|
||
|
free(gz);
|
||
|
return NULL;
|
||
|
}
|
||
|
gz->file = path == NULL ? fdopen(fd, gz->write ? "wb" : "rb") :
|
||
|
fopen(path, gz->write ? "wb" : "rb");
|
||
|
if (gz->file == NULL) {
|
||
|
gz->write ? deflateEnd(&(gz->strm)) : inflateEnd(&(gz->strm));
|
||
|
free(gz);
|
||
|
return NULL;
|
||
|
}
|
||
|
gz->err = 0;
|
||
|
gz->msg = "";
|
||
|
return gz;
|
||
|
}
|
||
|
|
||
|
int gzwrite OF((gzFile, const void *, unsigned));
|
||
|
|
||
|
int gzwrite(gz, buf, len)
|
||
|
gzFile gz;
|
||
|
const void *buf;
|
||
|
unsigned len;
|
||
|
{
|
||
|
z_stream *strm;
|
||
|
unsigned char out[BUFLEN];
|
||
|
|
||
|
if (gz == NULL || !gz->write)
|
||
|
return 0;
|
||
|
strm = &(gz->strm);
|
||
|
strm->next_in = (void *)buf;
|
||
|
strm->avail_in = len;
|
||
|
do {
|
||
|
strm->next_out = out;
|
||
|
strm->avail_out = BUFLEN;
|
||
|
(void)deflate(strm, Z_NO_FLUSH);
|
||
|
fwrite(out, 1, BUFLEN - strm->avail_out, gz->file);
|
||
|
} while (strm->avail_out == 0);
|
||
|
return len;
|
||
|
}
|
||
|
|
||
|
int gzread OF((gzFile, void *, unsigned));
|
||
|
|
||
|
int gzread(gz, buf, len)
|
||
|
gzFile gz;
|
||
|
void *buf;
|
||
|
unsigned len;
|
||
|
{
|
||
|
int ret;
|
||
|
unsigned got;
|
||
|
unsigned char in[1];
|
||
|
z_stream *strm;
|
||
|
|
||
|
if (gz == NULL || gz->write)
|
||
|
return 0;
|
||
|
if (gz->err)
|
||
|
return 0;
|
||
|
strm = &(gz->strm);
|
||
|
strm->next_out = (void *)buf;
|
||
|
strm->avail_out = len;
|
||
|
do {
|
||
|
got = fread(in, 1, 1, gz->file);
|
||
|
if (got == 0)
|
||
|
break;
|
||
|
strm->next_in = in;
|
||
|
strm->avail_in = 1;
|
||
|
ret = inflate(strm, Z_NO_FLUSH);
|
||
|
if (ret == Z_DATA_ERROR) {
|
||
|
gz->err = Z_DATA_ERROR;
|
||
|
gz->msg = strm->msg;
|
||
|
return 0;
|
||
|
}
|
||
|
if (ret == Z_STREAM_END)
|
||
|
inflateReset(strm);
|
||
|
} while (strm->avail_out);
|
||
|
return len - strm->avail_out;
|
||
|
}
|
||
|
|
||
|
int gzclose OF((gzFile));
|
||
|
|
||
|
int gzclose(gz)
|
||
|
gzFile gz;
|
||
|
{
|
||
|
z_stream *strm;
|
||
|
unsigned char out[BUFLEN];
|
||
|
|
||
|
if (gz == NULL)
|
||
|
return Z_STREAM_ERROR;
|
||
|
strm = &(gz->strm);
|
||
|
if (gz->write) {
|
||
|
strm->next_in = Z_NULL;
|
||
|
strm->avail_in = 0;
|
||
|
do {
|
||
|
strm->next_out = out;
|
||
|
strm->avail_out = BUFLEN;
|
||
|
(void)deflate(strm, Z_FINISH);
|
||
|
fwrite(out, 1, BUFLEN - strm->avail_out, gz->file);
|
||
|
} while (strm->avail_out == 0);
|
||
|
deflateEnd(strm);
|
||
|
}
|
||
|
else
|
||
|
inflateEnd(strm);
|
||
|
fclose(gz->file);
|
||
|
free(gz);
|
||
|
return Z_OK;
|
||
|
}
|
||
|
|
||
|
const char *gzerror OF((gzFile, int *));
|
||
|
|
||
|
const char *gzerror(gz, err)
|
||
|
gzFile gz;
|
||
|
int *err;
|
||
|
{
|
||
|
*err = gz->err;
|
||
|
return gz->msg;
|
||
|
}
|
||
|
|
||
|
#endif
|
||
|
|
||
|
static char *prog;
|
||
|
|
||
|
void error OF((const char *msg));
|
||
|
void gz_compress OF((FILE *in, gzFile out));
|
||
|
#ifdef USE_MMAP
|
||
|
int gz_compress_mmap OF((FILE *in, gzFile out));
|
||
|
#endif
|
||
|
void gz_uncompress OF((gzFile in, FILE *out));
|
||
|
void file_compress OF((char *file, char *mode));
|
||
|
void file_uncompress OF((char *file));
|
||
|
int main OF((int argc, char *argv[]));
|
||
|
|
||
|
/* ===========================================================================
|
||
|
* Display error message and exit
|
||
|
*/
|
||
|
void error(msg)
|
||
|
const char *msg;
|
||
|
{
|
||
|
fprintf(stderr, "%s: %s\n", prog, msg);
|
||
|
exit(1);
|
||
|
}
|
||
|
|
||
|
/* ===========================================================================
|
||
|
* Compress input to output then close both files.
|
||
|
*/
|
||
|
|
||
|
void gz_compress(in, out)
|
||
|
FILE *in;
|
||
|
gzFile out;
|
||
|
{
|
||
|
local char buf[BUFLEN];
|
||
|
int len;
|
||
|
int err;
|
||
|
|
||
|
#ifdef USE_MMAP
|
||
|
/* Try first compressing with mmap. If mmap fails (minigzip used in a
|
||
|
* pipe), use the normal fread loop.
|
||
|
*/
|
||
|
if (gz_compress_mmap(in, out) == Z_OK) return;
|
||
|
#endif
|
||
|
for (;;) {
|
||
|
len = (int)fread(buf, 1, sizeof(buf), in);
|
||
|
if (ferror(in)) {
|
||
|
perror("fread");
|
||
|
exit(1);
|
||
|
}
|
||
|
if (len == 0) break;
|
||
|
|
||
|
if (gzwrite(out, buf, (unsigned)len) != len) error(gzerror(out, &err));
|
||
|
}
|
||
|
fclose(in);
|
||
|
if (gzclose(out) != Z_OK) error("failed gzclose");
|
||
|
}
|
||
|
|
||
|
#ifdef USE_MMAP /* MMAP version, Miguel Albrecht <malbrech@eso.org> */
|
||
|
|
||
|
/* Try compressing the input file at once using mmap. Return Z_OK if
|
||
|
* if success, Z_ERRNO otherwise.
|
||
|
*/
|
||
|
int gz_compress_mmap(in, out)
|
||
|
FILE *in;
|
||
|
gzFile out;
|
||
|
{
|
||
|
int len;
|
||
|
int err;
|
||
|
int ifd = fileno(in);
|
||
|
caddr_t buf; /* mmap'ed buffer for the entire input file */
|
||
|
off_t buf_len; /* length of the input file */
|
||
|
struct stat sb;
|
||
|
|
||
|
/* Determine the size of the file, needed for mmap: */
|
||
|
if (fstat(ifd, &sb) < 0) return Z_ERRNO;
|
||
|
buf_len = sb.st_size;
|
||
|
if (buf_len <= 0) return Z_ERRNO;
|
||
|
|
||
|
/* Now do the actual mmap: */
|
||
|
buf = mmap((caddr_t) 0, buf_len, PROT_READ, MAP_SHARED, ifd, (off_t)0);
|
||
|
if (buf == (caddr_t)(-1)) return Z_ERRNO;
|
||
|
|
||
|
/* Compress the whole file at once: */
|
||
|
len = gzwrite(out, (char *)buf, (unsigned)buf_len);
|
||
|
|
||
|
if (len != (int)buf_len) error(gzerror(out, &err));
|
||
|
|
||
|
munmap(buf, buf_len);
|
||
|
fclose(in);
|
||
|
if (gzclose(out) != Z_OK) error("failed gzclose");
|
||
|
return Z_OK;
|
||
|
}
|
||
|
#endif /* USE_MMAP */
|
||
|
|
||
|
/* ===========================================================================
|
||
|
* Uncompress input to output then close both files.
|
||
|
*/
|
||
|
void gz_uncompress(in, out)
|
||
|
gzFile in;
|
||
|
FILE *out;
|
||
|
{
|
||
|
local char buf[BUFLEN];
|
||
|
int len;
|
||
|
int err;
|
||
|
|
||
|
for (;;) {
|
||
|
len = gzread(in, buf, sizeof(buf));
|
||
|
if (len < 0) error (gzerror(in, &err));
|
||
|
if (len == 0) break;
|
||
|
|
||
|
if ((int)fwrite(buf, 1, (unsigned)len, out) != len) {
|
||
|
error("failed fwrite");
|
||
|
}
|
||
|
}
|
||
|
if (fclose(out)) error("failed fclose");
|
||
|
|
||
|
if (gzclose(in) != Z_OK) error("failed gzclose");
|
||
|
}
|
||
|
|
||
|
|
||
|
/* ===========================================================================
|
||
|
* Compress the given file: create a corresponding .gz file and remove the
|
||
|
* original.
|
||
|
*/
|
||
|
void file_compress(file, mode)
|
||
|
char *file;
|
||
|
char *mode;
|
||
|
{
|
||
|
local char outfile[MAX_NAME_LEN];
|
||
|
FILE *in;
|
||
|
gzFile out;
|
||
|
|
||
|
if (strlen(file) + strlen(GZ_SUFFIX) >= sizeof(outfile)) {
|
||
|
fprintf(stderr, "%s: filename too long\n", prog);
|
||
|
exit(1);
|
||
|
}
|
||
|
|
||
|
#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
|
||
|
snprintf(outfile, sizeof(outfile), "%s%s", file, GZ_SUFFIX);
|
||
|
#else
|
||
|
strcpy(outfile, file);
|
||
|
strcat(outfile, GZ_SUFFIX);
|
||
|
#endif
|
||
|
|
||
|
in = fopen(file, "rb");
|
||
|
if (in == NULL) {
|
||
|
perror(file);
|
||
|
exit(1);
|
||
|
}
|
||
|
out = gzopen(outfile, mode);
|
||
|
if (out == NULL) {
|
||
|
fprintf(stderr, "%s: can't gzopen %s\n", prog, outfile);
|
||
|
exit(1);
|
||
|
}
|
||
|
gz_compress(in, out);
|
||
|
|
||
|
unlink(file);
|
||
|
}
|
||
|
|
||
|
|
||
|
/* ===========================================================================
|
||
|
* Uncompress the given file and remove the original.
|
||
|
*/
|
||
|
void file_uncompress(file)
|
||
|
char *file;
|
||
|
{
|
||
|
local char buf[MAX_NAME_LEN];
|
||
|
char *infile, *outfile;
|
||
|
FILE *out;
|
||
|
gzFile in;
|
||
|
unsigned len = strlen(file);
|
||
|
|
||
|
if (len + strlen(GZ_SUFFIX) >= sizeof(buf)) {
|
||
|
fprintf(stderr, "%s: filename too long\n", prog);
|
||
|
exit(1);
|
||
|
}
|
||
|
|
||
|
#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
|
||
|
snprintf(buf, sizeof(buf), "%s", file);
|
||
|
#else
|
||
|
strcpy(buf, file);
|
||
|
#endif
|
||
|
|
||
|
if (len > SUFFIX_LEN && strcmp(file+len-SUFFIX_LEN, GZ_SUFFIX) == 0) {
|
||
|
infile = file;
|
||
|
outfile = buf;
|
||
|
outfile[len-3] = '\0';
|
||
|
} else {
|
||
|
outfile = file;
|
||
|
infile = buf;
|
||
|
#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
|
||
|
snprintf(buf + len, sizeof(buf) - len, "%s", GZ_SUFFIX);
|
||
|
#else
|
||
|
strcat(infile, GZ_SUFFIX);
|
||
|
#endif
|
||
|
}
|
||
|
in = gzopen(infile, "rb");
|
||
|
if (in == NULL) {
|
||
|
fprintf(stderr, "%s: can't gzopen %s\n", prog, infile);
|
||
|
exit(1);
|
||
|
}
|
||
|
out = fopen(outfile, "wb");
|
||
|
if (out == NULL) {
|
||
|
perror(file);
|
||
|
exit(1);
|
||
|
}
|
||
|
|
||
|
gz_uncompress(in, out);
|
||
|
|
||
|
unlink(infile);
|
||
|
}
|
||
|
|
||
|
|
||
|
/* ===========================================================================
|
||
|
* Usage: minigzip [-c] [-d] [-f] [-h] [-r] [-1 to -9] [files...]
|
||
|
* -c : write to standard output
|
||
|
* -d : decompress
|
||
|
* -f : compress with Z_FILTERED
|
||
|
* -h : compress with Z_HUFFMAN_ONLY
|
||
|
* -r : compress with Z_RLE
|
||
|
* -1 to -9 : compression level
|
||
|
*/
|
||
|
|
||
|
int main(argc, argv)
|
||
|
int argc;
|
||
|
char *argv[];
|
||
|
{
|
||
|
int copyout = 0;
|
||
|
int uncompr = 0;
|
||
|
gzFile file;
|
||
|
char *bname, outmode[20];
|
||
|
|
||
|
#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
|
||
|
snprintf(outmode, sizeof(outmode), "%s", "wb6 ");
|
||
|
#else
|
||
|
strcpy(outmode, "wb6 ");
|
||
|
#endif
|
||
|
|
||
|
prog = argv[0];
|
||
|
bname = strrchr(argv[0], '/');
|
||
|
if (bname)
|
||
|
bname++;
|
||
|
else
|
||
|
bname = argv[0];
|
||
|
argc--, argv++;
|
||
|
|
||
|
if (!strcmp(bname, "gunzip"))
|
||
|
uncompr = 1;
|
||
|
else if (!strcmp(bname, "zcat"))
|
||
|
copyout = uncompr = 1;
|
||
|
|
||
|
while (argc > 0) {
|
||
|
if (strcmp(*argv, "-c") == 0)
|
||
|
copyout = 1;
|
||
|
else if (strcmp(*argv, "-d") == 0)
|
||
|
uncompr = 1;
|
||
|
else if (strcmp(*argv, "-f") == 0)
|
||
|
outmode[3] = 'f';
|
||
|
else if (strcmp(*argv, "-h") == 0)
|
||
|
outmode[3] = 'h';
|
||
|
else if (strcmp(*argv, "-r") == 0)
|
||
|
outmode[3] = 'R';
|
||
|
else if ((*argv)[0] == '-' && (*argv)[1] >= '1' && (*argv)[1] <= '9' &&
|
||
|
(*argv)[2] == 0)
|
||
|
outmode[2] = (*argv)[1];
|
||
|
else
|
||
|
break;
|
||
|
argc--, argv++;
|
||
|
}
|
||
|
if (outmode[3] == ' ')
|
||
|
outmode[3] = 0;
|
||
|
if (argc == 0) {
|
||
|
SET_BINARY_MODE(stdin);
|
||
|
SET_BINARY_MODE(stdout);
|
||
|
if (uncompr) {
|
||
|
file = gzdopen(fileno(stdin), "rb");
|
||
|
if (file == NULL) error("can't gzdopen stdin");
|
||
|
gz_uncompress(file, stdout);
|
||
|
} else {
|
||
|
file = gzdopen(fileno(stdout), outmode);
|
||
|
if (file == NULL) error("can't gzdopen stdout");
|
||
|
gz_compress(stdin, file);
|
||
|
}
|
||
|
} else {
|
||
|
if (copyout) {
|
||
|
SET_BINARY_MODE(stdout);
|
||
|
}
|
||
|
do {
|
||
|
if (uncompr) {
|
||
|
if (copyout) {
|
||
|
file = gzopen(*argv, "rb");
|
||
|
if (file == NULL)
|
||
|
fprintf(stderr, "%s: can't gzopen %s\n", prog, *argv);
|
||
|
else
|
||
|
gz_uncompress(file, stdout);
|
||
|
} else {
|
||
|
file_uncompress(*argv);
|
||
|
}
|
||
|
} else {
|
||
|
if (copyout) {
|
||
|
FILE * in = fopen(*argv, "rb");
|
||
|
|
||
|
if (in == NULL) {
|
||
|
perror(*argv);
|
||
|
} else {
|
||
|
file = gzdopen(fileno(stdout), outmode);
|
||
|
if (file == NULL) error("can't gzdopen stdout");
|
||
|
|
||
|
gz_compress(in, file);
|
||
|
}
|
||
|
|
||
|
} else {
|
||
|
file_compress(*argv, outmode);
|
||
|
}
|
||
|
}
|
||
|
} while (argv++, --argc);
|
||
|
}
|
||
|
return 0;
|
||
|
}
|