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-rw-r--r--contrib/zlib/contrib/puff/pufftest.c165
1 files changed, 0 insertions, 165 deletions
diff --git a/contrib/zlib/contrib/puff/pufftest.c b/contrib/zlib/contrib/puff/pufftest.c
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index 7764814..0000000
--- a/contrib/zlib/contrib/puff/pufftest.c
+++ /dev/null
@@ -1,165 +0,0 @@
-/*
- * pufftest.c
- * Copyright (C) 2002-2013 Mark Adler
- * For conditions of distribution and use, see copyright notice in puff.h
- * version 2.3, 21 Jan 2013
- */
-
-/* Example of how to use puff().
-
- Usage: puff [-w] [-f] [-nnn] file
- ... | puff [-w] [-f] [-nnn]
-
- where file is the input file with deflate data, nnn is the number of bytes
- of input to skip before inflating (e.g. to skip a zlib or gzip header), and
- -w is used to write the decompressed data to stdout. -f is for coverage
- testing, and causes pufftest to fail with not enough output space (-f does
- a write like -w, so -w is not required). */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include "puff.h"
-
-#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__)
-# include <fcntl.h>
-# include <io.h>
-# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
-#else
-# define SET_BINARY_MODE(file)
-#endif
-
-#define local static
-
-/* Return size times approximately the cube root of 2, keeping the result as 1,
- 3, or 5 times a power of 2 -- the result is always > size, until the result
- is the maximum value of an unsigned long, where it remains. This is useful
- to keep reallocations less than ~33% over the actual data. */
-local size_t bythirds(size_t size)
-{
- int n;
- size_t m;
-
- m = size;
- for (n = 0; m; n++)
- m >>= 1;
- if (n < 3)
- return size + 1;
- n -= 3;
- m = size >> n;
- m += m == 6 ? 2 : 1;
- m <<= n;
- return m > size ? m : (size_t)(-1);
-}
-
-/* Read the input file *name, or stdin if name is NULL, into allocated memory.
- Reallocate to larger buffers until the entire file is read in. Return a
- pointer to the allocated data, or NULL if there was a memory allocation
- failure. *len is the number of bytes of data read from the input file (even
- if load() returns NULL). If the input file was empty or could not be opened
- or read, *len is zero. */
-local void *load(const char *name, size_t *len)
-{
- size_t size;
- void *buf, *swap;
- FILE *in;
-
- *len = 0;
- buf = malloc(size = 4096);
- if (buf == NULL)
- return NULL;
- in = name == NULL ? stdin : fopen(name, "rb");
- if (in != NULL) {
- for (;;) {
- *len += fread((char *)buf + *len, 1, size - *len, in);
- if (*len < size) break;
- size = bythirds(size);
- if (size == *len || (swap = realloc(buf, size)) == NULL) {
- free(buf);
- buf = NULL;
- break;
- }
- buf = swap;
- }
- fclose(in);
- }
- return buf;
-}
-
-int main(int argc, char **argv)
-{
- int ret, put = 0, fail = 0;
- unsigned skip = 0;
- char *arg, *name = NULL;
- unsigned char *source = NULL, *dest;
- size_t len = 0;
- unsigned long sourcelen, destlen;
-
- /* process arguments */
- while (arg = *++argv, --argc)
- if (arg[0] == '-') {
- if (arg[1] == 'w' && arg[2] == 0)
- put = 1;
- else if (arg[1] == 'f' && arg[2] == 0)
- fail = 1, put = 1;
- else if (arg[1] >= '0' && arg[1] <= '9')
- skip = (unsigned)atoi(arg + 1);
- else {
- fprintf(stderr, "invalid option %s\n", arg);
- return 3;
- }
- }
- else if (name != NULL) {
- fprintf(stderr, "only one file name allowed\n");
- return 3;
- }
- else
- name = arg;
- source = load(name, &len);
- if (source == NULL) {
- fprintf(stderr, "memory allocation failure\n");
- return 4;
- }
- if (len == 0) {
- fprintf(stderr, "could not read %s, or it was empty\n",
- name == NULL ? "<stdin>" : name);
- free(source);
- return 3;
- }
- if (skip >= len) {
- fprintf(stderr, "skip request of %d leaves no input\n", skip);
- free(source);
- return 3;
- }
-
- /* test inflate data with offset skip */
- len -= skip;
- sourcelen = (unsigned long)len;
- ret = puff(NIL, &destlen, source + skip, &sourcelen);
- if (ret)
- fprintf(stderr, "puff() failed with return code %d\n", ret);
- else {
- fprintf(stderr, "puff() succeeded uncompressing %lu bytes\n", destlen);
- if (sourcelen < len) fprintf(stderr, "%lu compressed bytes unused\n",
- len - sourcelen);
- }
-
- /* if requested, inflate again and write decompressd data to stdout */
- if (put && ret == 0) {
- if (fail)
- destlen >>= 1;
- dest = malloc(destlen);
- if (dest == NULL) {
- fprintf(stderr, "memory allocation failure\n");
- free(source);
- return 4;
- }
- puff(dest, &destlen, source + skip, &sourcelen);
- SET_BINARY_MODE(stdout);
- fwrite(dest, 1, destlen, stdout);
- free(dest);
- }
-
- /* clean up */
- free(source);
- return ret;
-}