Chris@4: /* minigzip.c -- simulate gzip using the zlib compression library
Chris@4: * Copyright (C) 1995-2006, 2010, 2011 Jean-loup Gailly.
Chris@4: * For conditions of distribution and use, see copyright notice in zlib.h
Chris@4: */
Chris@4:
Chris@4: /*
Chris@4: * minigzip is a minimal implementation of the gzip utility. This is
Chris@4: * only an example of using zlib and isn't meant to replace the
Chris@4: * full-featured gzip. No attempt is made to deal with file systems
Chris@4: * limiting names to 14 or 8+3 characters, etc... Error checking is
Chris@4: * very limited. So use minigzip only for testing; use gzip for the
Chris@4: * real thing. On MSDOS, use only on file names without extension
Chris@4: * or in pipe mode.
Chris@4: */
Chris@4:
Chris@4: /* @(#) $Id$ */
Chris@4:
Chris@4: #include "zlib.h"
Chris@4: #include <stdio.h>
Chris@4:
Chris@4: #ifdef STDC
Chris@4: # include <string.h>
Chris@4: # include <stdlib.h>
Chris@4: #endif
Chris@4:
Chris@4: #ifdef USE_MMAP
Chris@4: # include <sys/types.h>
Chris@4: # include <sys/mman.h>
Chris@4: # include <sys/stat.h>
Chris@4: #endif
Chris@4:
Chris@4: #if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__)
Chris@4: # include <fcntl.h>
Chris@4: # include <io.h>
Chris@4: # ifdef UNDER_CE
Chris@4: # include <stdlib.h>
Chris@4: # endif
Chris@4: # define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
Chris@4: #else
Chris@4: # define SET_BINARY_MODE(file)
Chris@4: #endif
Chris@4:
Chris@4: #ifdef VMS
Chris@4: # define unlink delete
Chris@4: # define GZ_SUFFIX "-gz"
Chris@4: #endif
Chris@4: #ifdef RISCOS
Chris@4: # define unlink remove
Chris@4: # define GZ_SUFFIX "-gz"
Chris@4: # define fileno(file) file->__file
Chris@4: #endif
Chris@4: #if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
Chris@4: # include <unix.h> /* for fileno */
Chris@4: #endif
Chris@4:
Chris@4: #if !defined(Z_HAVE_UNISTD_H) && !defined(_LARGEFILE64_SOURCE)
Chris@4: #ifndef WIN32 /* unlink already in stdio.h for WIN32 */
Chris@4: extern int unlink OF((const char *));
Chris@4: #endif
Chris@4: #endif
Chris@4:
Chris@4: #if defined(UNDER_CE)
Chris@4: # include <windows.h>
Chris@4: # define perror(s) pwinerror(s)
Chris@4:
Chris@4: /* Map the Windows error number in ERROR to a locale-dependent error
Chris@4: message string and return a pointer to it. Typically, the values
Chris@4: for ERROR come from GetLastError.
Chris@4:
Chris@4: The string pointed to shall not be modified by the application,
Chris@4: but may be overwritten by a subsequent call to strwinerror
Chris@4:
Chris@4: The strwinerror function does not change the current setting
Chris@4: of GetLastError. */
Chris@4:
Chris@4: static char *strwinerror (error)
Chris@4: DWORD error;
Chris@4: {
Chris@4: static char buf[1024];
Chris@4:
Chris@4: wchar_t *msgbuf;
Chris@4: DWORD lasterr = GetLastError();
Chris@4: DWORD chars = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM
Chris@4: | FORMAT_MESSAGE_ALLOCATE_BUFFER,
Chris@4: NULL,
Chris@4: error,
Chris@4: 0, /* Default language */
Chris@4: (LPVOID)&msgbuf,
Chris@4: 0,
Chris@4: NULL);
Chris@4: if (chars != 0) {
Chris@4: /* If there is an \r\n appended, zap it. */
Chris@4: if (chars >= 2
Chris@4: && msgbuf[chars - 2] == '\r' && msgbuf[chars - 1] == '\n') {
Chris@4: chars -= 2;
Chris@4: msgbuf[chars] = 0;
Chris@4: }
Chris@4:
Chris@4: if (chars > sizeof (buf) - 1) {
Chris@4: chars = sizeof (buf) - 1;
Chris@4: msgbuf[chars] = 0;
Chris@4: }
Chris@4:
Chris@4: wcstombs(buf, msgbuf, chars + 1);
Chris@4: LocalFree(msgbuf);
Chris@4: }
Chris@4: else {
Chris@4: sprintf(buf, "unknown win32 error (%ld)", error);
Chris@4: }
Chris@4:
Chris@4: SetLastError(lasterr);
Chris@4: return buf;
Chris@4: }
Chris@4:
Chris@4: static void pwinerror (s)
Chris@4: const char *s;
Chris@4: {
Chris@4: if (s && *s)
Chris@4: fprintf(stderr, "%s: %s\n", s, strwinerror(GetLastError ()));
Chris@4: else
Chris@4: fprintf(stderr, "%s\n", strwinerror(GetLastError ()));
Chris@4: }
Chris@4:
Chris@4: #endif /* UNDER_CE */
Chris@4:
Chris@4: #ifndef GZ_SUFFIX
Chris@4: # define GZ_SUFFIX ".gz"
Chris@4: #endif
Chris@4: #define SUFFIX_LEN (sizeof(GZ_SUFFIX)-1)
Chris@4:
Chris@4: #define BUFLEN 16384
Chris@4: #define MAX_NAME_LEN 1024
Chris@4:
Chris@4: #ifdef MAXSEG_64K
Chris@4: # define local static
Chris@4: /* Needed for systems with limitation on stack size. */
Chris@4: #else
Chris@4: # define local
Chris@4: #endif
Chris@4:
Chris@4: #ifdef Z_SOLO
Chris@4: /* for Z_SOLO, create simplified gz* functions using deflate and inflate */
Chris@4:
Chris@4: #if defined(Z_HAVE_UNISTD_H) || defined(Z_LARGE)
Chris@4: # include <unistd.h> /* for unlink() */
Chris@4: #endif
Chris@4:
Chris@4: void *myalloc OF((void *, unsigned, unsigned));
Chris@4: void myfree OF((void *, void *));
Chris@4:
Chris@4: void *myalloc(q, n, m)
Chris@4: void *q;
Chris@4: unsigned n, m;
Chris@4: {
Chris@4: q = Z_NULL;
Chris@4: return calloc(n, m);
Chris@4: }
Chris@4:
Chris@4: void myfree(q, p)
Chris@4: void *q, *p;
Chris@4: {
Chris@4: q = Z_NULL;
Chris@4: free(p);
Chris@4: }
Chris@4:
Chris@4: typedef struct gzFile_s {
Chris@4: FILE *file;
Chris@4: int write;
Chris@4: int err;
Chris@4: char *msg;
Chris@4: z_stream strm;
Chris@4: } *gzFile;
Chris@4:
Chris@4: gzFile gzopen OF((const char *, const char *));
Chris@4: gzFile gzdopen OF((int, const char *));
Chris@4: gzFile gz_open OF((const char *, int, const char *));
Chris@4:
Chris@4: gzFile gzopen(path, mode)
Chris@4: const char *path;
Chris@4: const char *mode;
Chris@4: {
Chris@4: return gz_open(path, -1, mode);
Chris@4: }
Chris@4:
Chris@4: gzFile gzdopen(fd, mode)
Chris@4: int fd;
Chris@4: const char *mode;
Chris@4: {
Chris@4: return gz_open(NULL, fd, mode);
Chris@4: }
Chris@4:
Chris@4: gzFile gz_open(path, fd, mode)
Chris@4: const char *path;
Chris@4: int fd;
Chris@4: const char *mode;
Chris@4: {
Chris@4: gzFile gz;
Chris@4: int ret;
Chris@4:
Chris@4: gz = malloc(sizeof(struct gzFile_s));
Chris@4: if (gz == NULL)
Chris@4: return NULL;
Chris@4: gz->write = strchr(mode, 'w') != NULL;
Chris@4: gz->strm.zalloc = myalloc;
Chris@4: gz->strm.zfree = myfree;
Chris@4: gz->strm.opaque = Z_NULL;
Chris@4: if (gz->write)
Chris@4: ret = deflateInit2(&(gz->strm), -1, 8, 15 + 16, 8, 0);
Chris@4: else {
Chris@4: gz->strm.next_in = 0;
Chris@4: gz->strm.avail_in = Z_NULL;
Chris@4: ret = inflateInit2(&(gz->strm), 15 + 16);
Chris@4: }
Chris@4: if (ret != Z_OK) {
Chris@4: free(gz);
Chris@4: return NULL;
Chris@4: }
Chris@4: gz->file = path == NULL ? fdopen(fd, gz->write ? "wb" : "rb") :
Chris@4: fopen(path, gz->write ? "wb" : "rb");
Chris@4: if (gz->file == NULL) {
Chris@4: gz->write ? deflateEnd(&(gz->strm)) : inflateEnd(&(gz->strm));
Chris@4: free(gz);
Chris@4: return NULL;
Chris@4: }
Chris@4: gz->err = 0;
Chris@4: gz->msg = "";
Chris@4: return gz;
Chris@4: }
Chris@4:
Chris@4: int gzwrite OF((gzFile, const void *, unsigned));
Chris@4:
Chris@4: int gzwrite(gz, buf, len)
Chris@4: gzFile gz;
Chris@4: const void *buf;
Chris@4: unsigned len;
Chris@4: {
Chris@4: z_stream *strm;
Chris@4: unsigned char out[BUFLEN];
Chris@4:
Chris@4: if (gz == NULL || !gz->write)
Chris@4: return 0;
Chris@4: strm = &(gz->strm);
Chris@4: strm->next_in = (void *)buf;
Chris@4: strm->avail_in = len;
Chris@4: do {
Chris@4: strm->next_out = out;
Chris@4: strm->avail_out = BUFLEN;
Chris@4: (void)deflate(strm, Z_NO_FLUSH);
Chris@4: fwrite(out, 1, BUFLEN - strm->avail_out, gz->file);
Chris@4: } while (strm->avail_out == 0);
Chris@4: return len;
Chris@4: }
Chris@4:
Chris@4: int gzread OF((gzFile, void *, unsigned));
Chris@4:
Chris@4: int gzread(gz, buf, len)
Chris@4: gzFile gz;
Chris@4: void *buf;
Chris@4: unsigned len;
Chris@4: {
Chris@4: int ret;
Chris@4: unsigned got;
Chris@4: unsigned char in[1];
Chris@4: z_stream *strm;
Chris@4:
Chris@4: if (gz == NULL || gz->write)
Chris@4: return 0;
Chris@4: if (gz->err)
Chris@4: return 0;
Chris@4: strm = &(gz->strm);
Chris@4: strm->next_out = (void *)buf;
Chris@4: strm->avail_out = len;
Chris@4: do {
Chris@4: got = fread(in, 1, 1, gz->file);
Chris@4: if (got == 0)
Chris@4: break;
Chris@4: strm->next_in = in;
Chris@4: strm->avail_in = 1;
Chris@4: ret = inflate(strm, Z_NO_FLUSH);
Chris@4: if (ret == Z_DATA_ERROR) {
Chris@4: gz->err = Z_DATA_ERROR;
Chris@4: gz->msg = strm->msg;
Chris@4: return 0;
Chris@4: }
Chris@4: if (ret == Z_STREAM_END)
Chris@4: inflateReset(strm);
Chris@4: } while (strm->avail_out);
Chris@4: return len - strm->avail_out;
Chris@4: }
Chris@4:
Chris@4: int gzclose OF((gzFile));
Chris@4:
Chris@4: int gzclose(gz)
Chris@4: gzFile gz;
Chris@4: {
Chris@4: z_stream *strm;
Chris@4: unsigned char out[BUFLEN];
Chris@4:
Chris@4: if (gz == NULL)
Chris@4: return Z_STREAM_ERROR;
Chris@4: strm = &(gz->strm);
Chris@4: if (gz->write) {
Chris@4: strm->next_in = Z_NULL;
Chris@4: strm->avail_in = 0;
Chris@4: do {
Chris@4: strm->next_out = out;
Chris@4: strm->avail_out = BUFLEN;
Chris@4: (void)deflate(strm, Z_FINISH);
Chris@4: fwrite(out, 1, BUFLEN - strm->avail_out, gz->file);
Chris@4: } while (strm->avail_out == 0);
Chris@4: deflateEnd(strm);
Chris@4: }
Chris@4: else
Chris@4: inflateEnd(strm);
Chris@4: fclose(gz->file);
Chris@4: free(gz);
Chris@4: return Z_OK;
Chris@4: }
Chris@4:
Chris@4: const char *gzerror OF((gzFile, int *));
Chris@4:
Chris@4: const char *gzerror(gz, err)
Chris@4: gzFile gz;
Chris@4: int *err;
Chris@4: {
Chris@4: *err = gz->err;
Chris@4: return gz->msg;
Chris@4: }
Chris@4:
Chris@4: #endif
Chris@4:
Chris@4: char *prog;
Chris@4:
Chris@4: void error OF((const char *msg));
Chris@4: void gz_compress OF((FILE *in, gzFile out));
Chris@4: #ifdef USE_MMAP
Chris@4: int gz_compress_mmap OF((FILE *in, gzFile out));
Chris@4: #endif
Chris@4: void gz_uncompress OF((gzFile in, FILE *out));
Chris@4: void file_compress OF((char *file, char *mode));
Chris@4: void file_uncompress OF((char *file));
Chris@4: int main OF((int argc, char *argv[]));
Chris@4:
Chris@4: /* ===========================================================================
Chris@4: * Display error message and exit
Chris@4: */
Chris@4: void error(msg)
Chris@4: const char *msg;
Chris@4: {
Chris@4: fprintf(stderr, "%s: %s\n", prog, msg);
Chris@4: exit(1);
Chris@4: }
Chris@4:
Chris@4: /* ===========================================================================
Chris@4: * Compress input to output then close both files.
Chris@4: */
Chris@4:
Chris@4: void gz_compress(in, out)
Chris@4: FILE *in;
Chris@4: gzFile out;
Chris@4: {
Chris@4: local char buf[BUFLEN];
Chris@4: int len;
Chris@4: int err;
Chris@4:
Chris@4: #ifdef USE_MMAP
Chris@4: /* Try first compressing with mmap. If mmap fails (minigzip used in a
Chris@4: * pipe), use the normal fread loop.
Chris@4: */
Chris@4: if (gz_compress_mmap(in, out) == Z_OK) return;
Chris@4: #endif
Chris@4: for (;;) {
Chris@4: len = (int)fread(buf, 1, sizeof(buf), in);
Chris@4: if (ferror(in)) {
Chris@4: perror("fread");
Chris@4: exit(1);
Chris@4: }
Chris@4: if (len == 0) break;
Chris@4:
Chris@4: if (gzwrite(out, buf, (unsigned)len) != len) error(gzerror(out, &err));
Chris@4: }
Chris@4: fclose(in);
Chris@4: if (gzclose(out) != Z_OK) error("failed gzclose");
Chris@4: }
Chris@4:
Chris@4: #ifdef USE_MMAP /* MMAP version, Miguel Albrecht <malbrech@eso.org> */
Chris@4:
Chris@4: /* Try compressing the input file at once using mmap. Return Z_OK if
Chris@4: * if success, Z_ERRNO otherwise.
Chris@4: */
Chris@4: int gz_compress_mmap(in, out)
Chris@4: FILE *in;
Chris@4: gzFile out;
Chris@4: {
Chris@4: int len;
Chris@4: int err;
Chris@4: int ifd = fileno(in);
Chris@4: caddr_t buf; /* mmap'ed buffer for the entire input file */
Chris@4: off_t buf_len; /* length of the input file */
Chris@4: struct stat sb;
Chris@4:
Chris@4: /* Determine the size of the file, needed for mmap: */
Chris@4: if (fstat(ifd, &sb) < 0) return Z_ERRNO;
Chris@4: buf_len = sb.st_size;
Chris@4: if (buf_len <= 0) return Z_ERRNO;
Chris@4:
Chris@4: /* Now do the actual mmap: */
Chris@4: buf = mmap((caddr_t) 0, buf_len, PROT_READ, MAP_SHARED, ifd, (off_t)0);
Chris@4: if (buf == (caddr_t)(-1)) return Z_ERRNO;
Chris@4:
Chris@4: /* Compress the whole file at once: */
Chris@4: len = gzwrite(out, (char *)buf, (unsigned)buf_len);
Chris@4:
Chris@4: if (len != (int)buf_len) error(gzerror(out, &err));
Chris@4:
Chris@4: munmap(buf, buf_len);
Chris@4: fclose(in);
Chris@4: if (gzclose(out) != Z_OK) error("failed gzclose");
Chris@4: return Z_OK;
Chris@4: }
Chris@4: #endif /* USE_MMAP */
Chris@4:
Chris@4: /* ===========================================================================
Chris@4: * Uncompress input to output then close both files.
Chris@4: */
Chris@4: void gz_uncompress(in, out)
Chris@4: gzFile in;
Chris@4: FILE *out;
Chris@4: {
Chris@4: local char buf[BUFLEN];
Chris@4: int len;
Chris@4: int err;
Chris@4:
Chris@4: for (;;) {
Chris@4: len = gzread(in, buf, sizeof(buf));
Chris@4: if (len < 0) error (gzerror(in, &err));
Chris@4: if (len == 0) break;
Chris@4:
Chris@4: if ((int)fwrite(buf, 1, (unsigned)len, out) != len) {
Chris@4: error("failed fwrite");
Chris@4: }
Chris@4: }
Chris@4: if (fclose(out)) error("failed fclose");
Chris@4:
Chris@4: if (gzclose(in) != Z_OK) error("failed gzclose");
Chris@4: }
Chris@4:
Chris@4:
Chris@4: /* ===========================================================================
Chris@4: * Compress the given file: create a corresponding .gz file and remove the
Chris@4: * original.
Chris@4: */
Chris@4: void file_compress(file, mode)
Chris@4: char *file;
Chris@4: char *mode;
Chris@4: {
Chris@4: local char outfile[MAX_NAME_LEN];
Chris@4: FILE *in;
Chris@4: gzFile out;
Chris@4:
Chris@4: if (strlen(file) + strlen(GZ_SUFFIX) >= sizeof(outfile)) {
Chris@4: fprintf(stderr, "%s: filename too long\n", prog);
Chris@4: exit(1);
Chris@4: }
Chris@4:
Chris@4: strcpy(outfile, file);
Chris@4: strcat(outfile, GZ_SUFFIX);
Chris@4:
Chris@4: in = fopen(file, "rb");
Chris@4: if (in == NULL) {
Chris@4: perror(file);
Chris@4: exit(1);
Chris@4: }
Chris@4: out = gzopen(outfile, mode);
Chris@4: if (out == NULL) {
Chris@4: fprintf(stderr, "%s: can't gzopen %s\n", prog, outfile);
Chris@4: exit(1);
Chris@4: }
Chris@4: gz_compress(in, out);
Chris@4:
Chris@4: unlink(file);
Chris@4: }
Chris@4:
Chris@4:
Chris@4: /* ===========================================================================
Chris@4: * Uncompress the given file and remove the original.
Chris@4: */
Chris@4: void file_uncompress(file)
Chris@4: char *file;
Chris@4: {
Chris@4: local char buf[MAX_NAME_LEN];
Chris@4: char *infile, *outfile;
Chris@4: FILE *out;
Chris@4: gzFile in;
Chris@4: size_t len = strlen(file);
Chris@4:
Chris@4: if (len + strlen(GZ_SUFFIX) >= sizeof(buf)) {
Chris@4: fprintf(stderr, "%s: filename too long\n", prog);
Chris@4: exit(1);
Chris@4: }
Chris@4:
Chris@4: strcpy(buf, file);
Chris@4:
Chris@4: if (len > SUFFIX_LEN && strcmp(file+len-SUFFIX_LEN, GZ_SUFFIX) == 0) {
Chris@4: infile = file;
Chris@4: outfile = buf;
Chris@4: outfile[len-3] = '\0';
Chris@4: } else {
Chris@4: outfile = file;
Chris@4: infile = buf;
Chris@4: strcat(infile, GZ_SUFFIX);
Chris@4: }
Chris@4: in = gzopen(infile, "rb");
Chris@4: if (in == NULL) {
Chris@4: fprintf(stderr, "%s: can't gzopen %s\n", prog, infile);
Chris@4: exit(1);
Chris@4: }
Chris@4: out = fopen(outfile, "wb");
Chris@4: if (out == NULL) {
Chris@4: perror(file);
Chris@4: exit(1);
Chris@4: }
Chris@4:
Chris@4: gz_uncompress(in, out);
Chris@4:
Chris@4: unlink(infile);
Chris@4: }
Chris@4:
Chris@4:
Chris@4: /* ===========================================================================
Chris@4: * Usage: minigzip [-c] [-d] [-f] [-h] [-r] [-1 to -9] [files...]
Chris@4: * -c : write to standard output
Chris@4: * -d : decompress
Chris@4: * -f : compress with Z_FILTERED
Chris@4: * -h : compress with Z_HUFFMAN_ONLY
Chris@4: * -r : compress with Z_RLE
Chris@4: * -1 to -9 : compression level
Chris@4: */
Chris@4:
Chris@4: int main(argc, argv)
Chris@4: int argc;
Chris@4: char *argv[];
Chris@4: {
Chris@4: int copyout = 0;
Chris@4: int uncompr = 0;
Chris@4: gzFile file;
Chris@4: char *bname, outmode[20];
Chris@4:
Chris@4: strcpy(outmode, "wb6 ");
Chris@4:
Chris@4: prog = argv[0];
Chris@4: bname = strrchr(argv[0], '/');
Chris@4: if (bname)
Chris@4: bname++;
Chris@4: else
Chris@4: bname = argv[0];
Chris@4: argc--, argv++;
Chris@4:
Chris@4: if (!strcmp(bname, "gunzip"))
Chris@4: uncompr = 1;
Chris@4: else if (!strcmp(bname, "zcat"))
Chris@4: copyout = uncompr = 1;
Chris@4:
Chris@4: while (argc > 0) {
Chris@4: if (strcmp(*argv, "-c") == 0)
Chris@4: copyout = 1;
Chris@4: else if (strcmp(*argv, "-d") == 0)
Chris@4: uncompr = 1;
Chris@4: else if (strcmp(*argv, "-f") == 0)
Chris@4: outmode[3] = 'f';
Chris@4: else if (strcmp(*argv, "-h") == 0)
Chris@4: outmode[3] = 'h';
Chris@4: else if (strcmp(*argv, "-r") == 0)
Chris@4: outmode[3] = 'R';
Chris@4: else if ((*argv)[0] == '-' && (*argv)[1] >= '1' && (*argv)[1] <= '9' &&
Chris@4: (*argv)[2] == 0)
Chris@4: outmode[2] = (*argv)[1];
Chris@4: else
Chris@4: break;
Chris@4: argc--, argv++;
Chris@4: }
Chris@4: if (outmode[3] == ' ')
Chris@4: outmode[3] = 0;
Chris@4: if (argc == 0) {
Chris@4: SET_BINARY_MODE(stdin);
Chris@4: SET_BINARY_MODE(stdout);
Chris@4: if (uncompr) {
Chris@4: file = gzdopen(fileno(stdin), "rb");
Chris@4: if (file == NULL) error("can't gzdopen stdin");
Chris@4: gz_uncompress(file, stdout);
Chris@4: } else {
Chris@4: file = gzdopen(fileno(stdout), outmode);
Chris@4: if (file == NULL) error("can't gzdopen stdout");
Chris@4: gz_compress(stdin, file);
Chris@4: }
Chris@4: } else {
Chris@4: if (copyout) {
Chris@4: SET_BINARY_MODE(stdout);
Chris@4: }
Chris@4: do {
Chris@4: if (uncompr) {
Chris@4: if (copyout) {
Chris@4: file = gzopen(*argv, "rb");
Chris@4: if (file == NULL)
Chris@4: fprintf(stderr, "%s: can't gzopen %s\n", prog, *argv);
Chris@4: else
Chris@4: gz_uncompress(file, stdout);
Chris@4: } else {
Chris@4: file_uncompress(*argv);
Chris@4: }
Chris@4: } else {
Chris@4: if (copyout) {
Chris@4: FILE * in = fopen(*argv, "rb");
Chris@4:
Chris@4: if (in == NULL) {
Chris@4: perror(*argv);
Chris@4: } else {
Chris@4: file = gzdopen(fileno(stdout), outmode);
Chris@4: if (file == NULL) error("can't gzdopen stdout");
Chris@4:
Chris@4: gz_compress(in, file);
Chris@4: }
Chris@4:
Chris@4: } else {
Chris@4: file_compress(*argv, outmode);
Chris@4: }
Chris@4: }
Chris@4: } while (argv++, --argc);
Chris@4: }
Chris@4: return 0;
Chris@4: }