diff options
Diffstat (limited to 'security/nss/cmd/zlib/minigzip.c')
| -rw-r--r-- | security/nss/cmd/zlib/minigzip.c | 246 |
1 files changed, 0 insertions, 246 deletions
diff --git a/security/nss/cmd/zlib/minigzip.c b/security/nss/cmd/zlib/minigzip.c deleted file mode 100644 index 60a48a12d..000000000 --- a/security/nss/cmd/zlib/minigzip.c +++ /dev/null @@ -1,246 +0,0 @@ -/* minigzip.c -- simulate gzip using the zlib compression library - * Copyright (C) 1995-1996 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 <stdio.h> -#include "zlib.h" - -#ifdef STDC -# include <string.h> -# include <stdlib.h> -#else - extern void exit OF((int)); -#endif - - -#if defined(MSDOS) || defined(OS2) || defined(WIN32) -# include <fcntl.h> -# include <io.h> -# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY) -#else -# define SET_BINARY_MODE(file) -#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 - -#ifndef GZ_SUFFIX -# define GZ_SUFFIX ".gz" -#endif -#define SUFFIX_LEN sizeof(GZ_SUFFIX) - -extern int unlink OF((const char *)); - -#define BUFLEN 4096 -#define MAX_NAME_LEN 1024 - -#define local static -/* For MSDOS and other systems with limitation on stack size. For Unix, - #define local - works also. - */ - -char *prog; - -void error OF((const char *msg)); -void gz_compress OF((FILE *in, gzFile out)); -void gz_uncompress OF((gzFile in, FILE *out)); -void file_compress OF((char *file)); -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; - - for (;;) { - len = 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"); -} - -/* =========================================================================== - * 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) - char *file; -{ - local char outfile[MAX_NAME_LEN]; - FILE *in; - gzFile out; - - strcpy(outfile, file); - strcat(outfile, GZ_SUFFIX); - - in = fopen(file, "rb"); - if (in == NULL) { - perror(file); - exit(1); - } - out = gzopen(outfile, "wb"); /* use "wb9" for maximal compression */ - 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; - int len = strlen(file); - - strcpy(buf, file); - - 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; - strcat(infile, GZ_SUFFIX); - } - 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 [-d] [files...] - */ - -int main(argc, argv) - int argc; - char *argv[]; -{ - int uncompr = 0; - gzFile file; - - prog = argv[0]; - argc--, argv++; - - if (argc > 0) { - uncompr = (strcmp(*argv, "-d") == 0); - if (uncompr) { - argc--, argv++; - } - } - 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), "wb"); /* "wb9" for max compr. */ - if (file == NULL) error("can't gzdopen stdout"); - gz_compress(stdin, file); - } - } else { - do { - if (uncompr) { - file_uncompress(*argv); - } else { - file_compress(*argv); - } - } while (argv++, --argc); - } - exit(0); - return 0; /* to avoid warning */ -} |