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Diffstat (limited to 'compat/zlib/test/infcover.c')
| -rw-r--r-- | compat/zlib/test/infcover.c | 671 |
1 files changed, 671 insertions, 0 deletions
diff --git a/compat/zlib/test/infcover.c b/compat/zlib/test/infcover.c new file mode 100644 index 0000000..fe3d920 --- /dev/null +++ b/compat/zlib/test/infcover.c @@ -0,0 +1,671 @@ +/* infcover.c -- test zlib's inflate routines with full code coverage + * Copyright (C) 2011 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* to use, do: ./configure --cover && make cover */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <assert.h> +#include "zlib.h" + +/* get definition of internal structure so we can mess with it (see pull()), + and so we can call inflate_trees() (see cover5()) */ +#define ZLIB_INTERNAL +#include "inftrees.h" +#include "inflate.h" + +#define local static + +/* -- memory tracking routines -- */ + +/* + These memory tracking routines are provided to zlib and track all of zlib's + allocations and deallocations, check for LIFO operations, keep a current + and high water mark of total bytes requested, optionally set a limit on the + total memory that can be allocated, and when done check for memory leaks. + + They are used as follows: + + z_stream strm; + mem_setup(&strm) initializes the memory tracking and sets the + zalloc, zfree, and opaque members of strm to use + memory tracking for all zlib operations on strm + mem_limit(&strm, limit) sets a limit on the total bytes requested -- a + request that exceeds this limit will result in an + allocation failure (returns NULL) -- setting the + limit to zero means no limit, which is the default + after mem_setup() + mem_used(&strm, "msg") prints to stderr "msg" and the total bytes used + mem_high(&strm, "msg") prints to stderr "msg" and the high water mark + mem_done(&strm, "msg") ends memory tracking, releases all allocations + for the tracking as well as leaked zlib blocks, if + any. If there was anything unusual, such as leaked + blocks, non-FIFO frees, or frees of addresses not + allocated, then "msg" and information about the + problem is printed to stderr. If everything is + normal, nothing is printed. mem_done resets the + strm members to Z_NULL to use the default memory + allocation routines on the next zlib initialization + using strm. + */ + +/* these items are strung together in a linked list, one for each allocation */ +struct mem_item { + void *ptr; /* pointer to allocated memory */ + size_t size; /* requested size of allocation */ + struct mem_item *next; /* pointer to next item in list, or NULL */ +}; + +/* this structure is at the root of the linked list, and tracks statistics */ +struct mem_zone { + struct mem_item *first; /* pointer to first item in list, or NULL */ + size_t total, highwater; /* total allocations, and largest total */ + size_t limit; /* memory allocation limit, or 0 if no limit */ + int notlifo, rogue; /* counts of non-LIFO frees and rogue frees */ +}; + +/* memory allocation routine to pass to zlib */ +local void *mem_alloc(void *mem, unsigned count, unsigned size) +{ + void *ptr; + struct mem_item *item; + struct mem_zone *zone = mem; + size_t len = count * (size_t)size; + + /* induced allocation failure */ + if (zone == NULL || (zone->limit && zone->total + len > zone->limit)) + return NULL; + + /* perform allocation using the standard library, fill memory with a + non-zero value to make sure that the code isn't depending on zeros */ + ptr = malloc(len); + if (ptr == NULL) + return NULL; + memset(ptr, 0xa5, len); + + /* create a new item for the list */ + item = malloc(sizeof(struct mem_item)); + if (item == NULL) { + free(ptr); + return NULL; + } + item->ptr = ptr; + item->size = len; + + /* insert item at the beginning of the list */ + item->next = zone->first; + zone->first = item; + + /* update the statistics */ + zone->total += item->size; + if (zone->total > zone->highwater) + zone->highwater = zone->total; + + /* return the allocated memory */ + return ptr; +} + +/* memory free routine to pass to zlib */ +local void mem_free(void *mem, void *ptr) +{ + struct mem_item *item, *next; + struct mem_zone *zone = mem; + + /* if no zone, just do a free */ + if (zone == NULL) { + free(ptr); + return; + } + + /* point next to the item that matches ptr, or NULL if not found -- remove + the item from the linked list if found */ + next = zone->first; + if (next) { + if (next->ptr == ptr) + zone->first = next->next; /* first one is it, remove from list */ + else { + do { /* search the linked list */ + item = next; + next = item->next; + } while (next != NULL && next->ptr != ptr); + if (next) { /* if found, remove from linked list */ + item->next = next->next; + zone->notlifo++; /* not a LIFO free */ + } + + } + } + + /* if found, update the statistics and free the item */ + if (next) { + zone->total -= next->size; + free(next); + } + + /* if not found, update the rogue count */ + else + zone->rogue++; + + /* in any case, do the requested free with the standard library function */ + free(ptr); +} + +/* set up a controlled memory allocation space for monitoring, set the stream + parameters to the controlled routines, with opaque pointing to the space */ +local void mem_setup(z_stream *strm) +{ + struct mem_zone *zone; + + zone = malloc(sizeof(struct mem_zone)); + assert(zone != NULL); + zone->first = NULL; + zone->total = 0; + zone->highwater = 0; + zone->limit = 0; + zone->notlifo = 0; + zone->rogue = 0; + strm->opaque = zone; + strm->zalloc = mem_alloc; + strm->zfree = mem_free; +} + +/* set a limit on the total memory allocation, or 0 to remove the limit */ +local void mem_limit(z_stream *strm, size_t limit) +{ + struct mem_zone *zone = strm->opaque; + + zone->limit = limit; +} + +/* show the current total requested allocations in bytes */ +local void mem_used(z_stream *strm, char *prefix) +{ + struct mem_zone *zone = strm->opaque; + + fprintf(stderr, "%s: %lu allocated\n", prefix, zone->total); +} + +/* show the high water allocation in bytes */ +local void mem_high(z_stream *strm, char *prefix) +{ + struct mem_zone *zone = strm->opaque; + + fprintf(stderr, "%s: %lu high water mark\n", prefix, zone->highwater); +} + +/* release the memory allocation zone -- if there are any surprises, notify */ +local void mem_done(z_stream *strm, char *prefix) +{ + int count = 0; + struct mem_item *item, *next; + struct mem_zone *zone = strm->opaque; + + /* show high water mark */ + mem_high(strm, prefix); + + /* free leftover allocations and item structures, if any */ + item = zone->first; + while (item != NULL) { + free(item->ptr); + next = item->next; + free(item); + item = next; + count++; + } + + /* issue alerts about anything unexpected */ + if (count || zone->total) + fprintf(stderr, "** %s: %lu bytes in %d blocks not freed\n", + prefix, zone->total, count); + if (zone->notlifo) + fprintf(stderr, "** %s: %d frees not LIFO\n", prefix, zone->notlifo); + if (zone->rogue) + fprintf(stderr, "** %s: %d frees not recognized\n", + prefix, zone->rogue); + + /* free the zone and delete from the stream */ + free(zone); + strm->opaque = Z_NULL; + strm->zalloc = Z_NULL; + strm->zfree = Z_NULL; +} + +/* -- inflate test routines -- */ + +/* Decode a hexadecimal string, set *len to length, in[] to the bytes. This + decodes liberally, in that hex digits can be adjacent, in which case two in + a row writes a byte. Or they can delimited by any non-hex character, where + the delimiters are ignored except when a single hex digit is followed by a + delimiter in which case that single digit writes a byte. The returned + data is allocated and must eventually be freed. NULL is returned if out of + memory. If the length is not needed, then len can be NULL. */ +local unsigned char *h2b(const char *hex, unsigned *len) +{ + unsigned char *in; + unsigned next, val; + + in = malloc((strlen(hex) + 1) >> 1); + if (in == NULL) + return NULL; + next = 0; + val = 1; + do { + if (*hex >= '0' && *hex <= '9') + val = (val << 4) + *hex - '0'; + else if (*hex >= 'A' && *hex <= 'F') + val = (val << 4) + *hex - 'A' + 10; + else if (*hex >= 'a' && *hex <= 'f') + val = (val << 4) + *hex - 'a' + 10; + else if (val != 1 && val < 32) /* one digit followed by delimiter */ + val += 240; /* make it look like two digits */ + if (val > 255) { /* have two digits */ + in[next++] = val & 0xff; /* save the decoded byte */ + val = 1; /* start over */ + } + } while (*hex++); /* go through the loop with the terminating null */ + if (len != NULL) + *len = next; + in = reallocf(in, next); + return in; +} + +/* generic inflate() run, where hex is the hexadecimal input data, what is the + text to include in an error message, step is how much input data to feed + inflate() on each call, or zero to feed it all, win is the window bits + parameter to inflateInit2(), len is the size of the output buffer, and err + is the error code expected from the first inflate() call (the second + inflate() call is expected to return Z_STREAM_END). If win is 47, then + header information is collected with inflateGetHeader(). If a zlib stream + is looking for a dictionary, then an empty dictionary is provided. + inflate() is run until all of the input data is consumed. */ +local void inf(char *hex, char *what, unsigned step, int win, unsigned len, + int err) +{ + int ret; + unsigned have; + unsigned char *in, *out; + z_stream strm, copy; + gz_header head; + + mem_setup(&strm); + strm.avail_in = 0; + strm.next_in = Z_NULL; + ret = inflateInit2(&strm, win); + if (ret != Z_OK) { + mem_done(&strm, what); + return; + } + out = malloc(len); assert(out != NULL); + if (win == 47) { + head.extra = out; + head.extra_max = len; + head.name = out; + head.name_max = len; + head.comment = out; + head.comm_max = len; + ret = inflateGetHeader(&strm, &head); assert(ret == Z_OK); + } + in = h2b(hex, &have); assert(in != NULL); + if (step == 0 || step > have) + step = have; + strm.avail_in = step; + have -= step; + strm.next_in = in; + do { + strm.avail_out = len; + strm.next_out = out; + ret = inflate(&strm, Z_NO_FLUSH); assert(err == 9 || ret == err); + if (ret != Z_OK && ret != Z_BUF_ERROR && ret != Z_NEED_DICT) + break; + if (ret == Z_NEED_DICT) { + ret = inflateSetDictionary(&strm, in, 1); + assert(ret == Z_DATA_ERROR); + mem_limit(&strm, 1); + ret = inflateSetDictionary(&strm, out, 0); + assert(ret == Z_MEM_ERROR); + mem_limit(&strm, 0); + ((struct inflate_state *)strm.state)->mode = DICT; + ret = inflateSetDictionary(&strm, out, 0); + assert(ret == Z_OK); + ret = inflate(&strm, Z_NO_FLUSH); assert(ret == Z_BUF_ERROR); + } + ret = inflateCopy(©, &strm); assert(ret == Z_OK); + ret = inflateEnd(©); assert(ret == Z_OK); + err = 9; /* don't care next time around */ + have += strm.avail_in; + strm.avail_in = step > have ? have : step; + have -= strm.avail_in; + } while (strm.avail_in); + free(in); + free(out); + ret = inflateReset2(&strm, -8); assert(ret == Z_OK); + ret = inflateEnd(&strm); assert(ret == Z_OK); + mem_done(&strm, what); +} + +/* cover all of the lines in inflate.c up to inflate() */ +local void cover_support(void) +{ + int ret; + z_stream strm; + + mem_setup(&strm); + strm.avail_in = 0; + strm.next_in = Z_NULL; + ret = inflateInit(&strm); assert(ret == Z_OK); + mem_used(&strm, "inflate init"); + ret = inflatePrime(&strm, 5, 31); assert(ret == Z_OK); + ret = inflatePrime(&strm, -1, 0); assert(ret == Z_OK); + ret = inflateSetDictionary(&strm, Z_NULL, 0); + assert(ret == Z_STREAM_ERROR); + ret = inflateEnd(&strm); assert(ret == Z_OK); + mem_done(&strm, "prime"); + + inf("63 0", "force window allocation", 0, -15, 1, Z_OK); + inf("63 18 5", "force window replacement", 0, -8, 259, Z_OK); + inf("63 18 68 30 d0 0 0", "force split window update", 4, -8, 259, Z_OK); + inf("3 0", "use fixed blocks", 0, -15, 1, Z_STREAM_END); + inf("", "bad window size", 0, 1, 0, Z_STREAM_ERROR); + + mem_setup(&strm); + strm.avail_in = 0; + strm.next_in = Z_NULL; + ret = inflateInit_(&strm, ZLIB_VERSION - 1, (int)sizeof(z_stream)); + assert(ret == Z_VERSION_ERROR); + mem_done(&strm, "wrong version"); + + strm.avail_in = 0; + strm.next_in = Z_NULL; + ret = inflateInit(&strm); assert(ret == Z_OK); + ret = inflateEnd(&strm); assert(ret == Z_OK); + fputs("inflate built-in memory routines\n", stderr); +} + +/* cover all inflate() header and trailer cases and code after inflate() */ +local void cover_wrap(void) +{ + int ret; + z_stream strm, copy; + unsigned char dict[257]; + + ret = inflate(Z_NULL, 0); assert(ret == Z_STREAM_ERROR); + ret = inflateEnd(Z_NULL); assert(ret == Z_STREAM_ERROR); + ret = inflateCopy(Z_NULL, Z_NULL); assert(ret == Z_STREAM_ERROR); + fputs("inflate bad parameters\n", stderr); + + inf("1f 8b 0 0", "bad gzip method", 0, 31, 0, Z_DATA_ERROR); + inf("1f 8b 8 80", "bad gzip flags", 0, 31, 0, Z_DATA_ERROR); + inf("77 85", "bad zlib method", 0, 15, 0, Z_DATA_ERROR); + inf("8 99", "set window size from header", 0, 0, 0, Z_OK); + inf("78 9c", "bad zlib window size", 0, 8, 0, Z_DATA_ERROR); + inf("78 9c 63 0 0 0 1 0 1", "check adler32", 0, 15, 1, Z_STREAM_END); + inf("1f 8b 8 1e 0 0 0 0 0 0 1 0 0 0 0 0 0", "bad header crc", 0, 47, 1, + Z_DATA_ERROR); + inf("1f 8b 8 2 0 0 0 0 0 0 1d 26 3 0 0 0 0 0 0 0 0 0", "check gzip length", + 0, 47, 0, Z_STREAM_END); + inf("78 90", "bad zlib header check", 0, 47, 0, Z_DATA_ERROR); + inf("8 b8 0 0 0 1", "need dictionary", 0, 8, 0, Z_NEED_DICT); + inf("78 9c 63 0", "compute adler32", 0, 15, 1, Z_OK); + + mem_setup(&strm); + strm.avail_in = 0; + strm.next_in = Z_NULL; + ret = inflateInit2(&strm, -8); + strm.avail_in = 2; + strm.next_in = (void *)"\x63"; + strm.avail_out = 1; + strm.next_out = (void *)&ret; + mem_limit(&strm, 1); + ret = inflate(&strm, Z_NO_FLUSH); assert(ret == Z_MEM_ERROR); + ret = inflate(&strm, Z_NO_FLUSH); assert(ret == Z_MEM_ERROR); + mem_limit(&strm, 0); + memset(dict, 0, 257); + ret = inflateSetDictionary(&strm, dict, 257); + assert(ret == Z_OK); + mem_limit(&strm, (sizeof(struct inflate_state) << 1) + 256); + ret = inflatePrime(&strm, 16, 0); assert(ret == Z_OK); + strm.avail_in = 2; + strm.next_in = (void *)"\x80"; + ret = inflateSync(&strm); assert(ret == Z_DATA_ERROR); + ret = inflate(&strm, Z_NO_FLUSH); assert(ret == Z_STREAM_ERROR); + strm.avail_in = 4; + strm.next_in = (void *)"\0\0\xff\xff"; + ret = inflateSync(&strm); assert(ret == Z_OK); + (void)inflateSyncPoint(&strm); + ret = inflateCopy(©, &strm); assert(ret == Z_MEM_ERROR); + mem_limit(&strm, 0); + ret = inflateUndermine(&strm, 1); assert(ret == Z_DATA_ERROR); + (void)inflateMark(&strm); + ret = inflateEnd(&strm); assert(ret == Z_OK); + mem_done(&strm, "miscellaneous, force memory errors"); +} + +/* input and output functions for inflateBack() */ +local unsigned pull(void *desc, unsigned char **buf) +{ + static unsigned int next = 0; + static unsigned char dat[] = {0x63, 0, 2, 0}; + struct inflate_state *state; + + if (desc == Z_NULL) { + next = 0; + return 0; /* no input (already provided at next_in) */ + } + state = (void *)((z_stream *)desc)->state; + if (state != Z_NULL) + state->mode = SYNC; /* force an otherwise impossible situation */ + return next < sizeof(dat) ? (*buf = dat + next++, 1) : 0; +} + +local int push(void *desc, unsigned char *buf, unsigned len) +{ + buf += len; + return desc != Z_NULL; /* force error if desc not null */ +} + +/* cover inflateBack() up to common deflate data cases and after those */ +local void cover_back(void) +{ + int ret; + z_stream strm; + unsigned char win[32768]; + + ret = inflateBackInit_(Z_NULL, 0, win, 0, 0); + assert(ret == Z_VERSION_ERROR); + ret = inflateBackInit(Z_NULL, 0, win); assert(ret == Z_STREAM_ERROR); + ret = inflateBack(Z_NULL, Z_NULL, Z_NULL, Z_NULL, Z_NULL); + assert(ret == Z_STREAM_ERROR); + ret = inflateBackEnd(Z_NULL); assert(ret == Z_STREAM_ERROR); + fputs("inflateBack bad parameters\n", stderr); + + mem_setup(&strm); + ret = inflateBackInit(&strm, 15, win); assert(ret == Z_OK); + strm.avail_in = 2; + strm.next_in = (void *)"\x03"; + ret = inflateBack(&strm, pull, Z_NULL, push, Z_NULL); + assert(ret == Z_STREAM_END); + /* force output error */ + strm.avail_in = 3; + strm.next_in = (void *)"\x63\x00"; + ret = inflateBack(&strm, pull, Z_NULL, push, &strm); + assert(ret == Z_BUF_ERROR); + /* force mode error by mucking with state */ + ret = inflateBack(&strm, pull, &strm, push, Z_NULL); + assert(ret == Z_STREAM_ERROR); + ret = inflateBackEnd(&strm); assert(ret == Z_OK); + mem_done(&strm, "inflateBack bad state"); + + ret = inflateBackInit(&strm, 15, win); assert(ret == Z_OK); + ret = inflateBackEnd(&strm); assert(ret == Z_OK); + fputs("inflateBack built-in memory routines\n", stderr); +} + +/* do a raw inflate of data in hexadecimal with both inflate and inflateBack */ +local int try(char *hex, char *id, int err) +{ + int ret; + unsigned len, size; + unsigned char *in, *out, *win; + char *prefix; + z_stream strm; + + /* convert to hex */ + in = h2b(hex, &len); + assert(in != NULL); + + /* allocate work areas */ + size = len << 3; + out = malloc(size); + assert(out != NULL); + win = malloc(32768); + assert(win != NULL); + prefix = malloc(strlen(id) + 6); + assert(prefix != NULL); + + /* first with inflate */ + strcpy(prefix, id); + strcat(prefix, "-late"); + mem_setup(&strm); + strm.avail_in = 0; + strm.next_in = Z_NULL; + ret = inflateInit2(&strm, err < 0 ? 47 : -15); + assert(ret == Z_OK); + strm.avail_in = len; + strm.next_in = in; + do { + strm.avail_out = size; + strm.next_out = out; + ret = inflate(&strm, Z_TREES); + assert(ret != Z_STREAM_ERROR && ret != Z_MEM_ERROR); + if (ret == Z_DATA_ERROR || ret == Z_NEED_DICT) + break; + } while (strm.avail_in || strm.avail_out == 0); + if (err) { + assert(ret == Z_DATA_ERROR); + assert(strcmp(id, strm.msg) == 0); + } + inflateEnd(&strm); + mem_done(&strm, prefix); + + /* then with inflateBack */ + if (err >= 0) { + strcpy(prefix, id); + strcat(prefix, "-back"); + mem_setup(&strm); + ret = inflateBackInit(&strm, 15, win); + assert(ret == Z_OK); + strm.avail_in = len; + strm.next_in = in; + ret = inflateBack(&strm, pull, Z_NULL, push, Z_NULL); + assert(ret != Z_STREAM_ERROR); + if (err) { + assert(ret == Z_DATA_ERROR); + assert(strcmp(id, strm.msg) == 0); + } + inflateBackEnd(&strm); + mem_done(&strm, prefix); + } + + /* clean up */ + free(prefix); + free(win); + free(out); + free(in); + return ret; +} + +/* cover deflate data cases in both inflate() and inflateBack() */ +local void cover_inflate(void) +{ + try("0 0 0 0 0", "invalid stored block lengths", 1); + try("3 0", "fixed", 0); + try("6", "invalid block type", 1); + try("1 1 0 fe ff 0", "stored", 0); + try("fc 0 0", "too many length or distance symbols", 1); + try("4 0 fe ff", "invalid code lengths set", 1); + try("4 0 24 49 0", "invalid bit length repeat", 1); + try("4 0 24 e9 ff ff", "invalid bit length repeat", 1); + try("4 0 24 e9 ff 6d", "invalid code -- missing end-of-block", 1); + try("4 80 49 92 24 49 92 24 71 ff ff 93 11 0", + "invalid literal/lengths set", 1); + try("4 80 49 92 24 49 92 24 f b4 ff ff c3 84", "invalid distances set", 1); + try("4 c0 81 8 0 0 0 0 20 7f eb b 0 0", "invalid literal/length code", 1); + try("2 7e ff ff", "invalid distance code", 1); + try("c c0 81 0 0 0 0 0 90 ff 6b 4 0", "invalid distance too far back", 1); + + /* also trailer mismatch just in inflate() */ + try("1f 8b 8 0 0 0 0 0 0 0 3 0 0 0 0 1", "incorrect data check", -1); + try("1f 8b 8 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 1", + "incorrect length check", -1); + try("5 c0 21 d 0 0 0 80 b0 fe 6d 2f 91 6c", "pull 17", 0); + try("5 e0 81 91 24 cb b2 2c 49 e2 f 2e 8b 9a 47 56 9f fb fe ec d2 ff 1f", + "long code", 0); + try("ed c0 1 1 0 0 0 40 20 ff 57 1b 42 2c 4f", "length extra", 0); + try("ed cf c1 b1 2c 47 10 c4 30 fa 6f 35 1d 1 82 59 3d fb be 2e 2a fc f c", + "long distance and extra", 0); + try("ed c0 81 0 0 0 0 80 a0 fd a9 17 a9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 " + "0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6", "window end", 0); + inf("2 8 20 80 0 3 0", "inflate_fast TYPE return", 0, -15, 258, + Z_STREAM_END); + inf("63 18 5 40 c 0", "window wrap", 3, -8, 300, Z_OK); +} + +/* cover remaining lines in inftrees.c */ +local void cover_trees(void) +{ + int ret; + unsigned bits; + unsigned short lens[16], work[16]; + code *next, table[ENOUGH_DISTS]; + + /* we need to call inflate_table() directly in order to manifest not- + enough errors, since zlib insures that enough is always enough */ + for (bits = 0; bits < 15; bits++) + lens[bits] = (unsigned short)(bits + 1); + lens[15] = 15; + next = table; + bits = 15; + ret = inflate_table(DISTS, lens, 16, &next, &bits, work); + assert(ret == 1); + next = table; + bits = 1; + ret = inflate_table(DISTS, lens, 16, &next, &bits, work); + assert(ret == 1); + fputs("inflate_table not enough errors\n", stderr); +} + +/* cover remaining inffast.c decoding and window copying */ +local void cover_fast(void) +{ + inf("e5 e0 81 ad 6d cb b2 2c c9 01 1e 59 63 ae 7d ee fb 4d fd b5 35 41 68" + " ff 7f 0f 0 0 0", "fast length extra bits", 0, -8, 258, Z_DATA_ERROR); + inf("25 fd 81 b5 6d 59 b6 6a 49 ea af 35 6 34 eb 8c b9 f6 b9 1e ef 67 49" + " 50 fe ff ff 3f 0 0", "fast distance extra bits", 0, -8, 258, + Z_DATA_ERROR); + inf("3 7e 0 0 0 0 0", "fast invalid distance code", 0, -8, 258, + Z_DATA_ERROR); + inf("1b 7 0 0 0 0 0", "fast invalid literal/length code", 0, -8, 258, + Z_DATA_ERROR); + inf("d c7 1 ae eb 38 c 4 41 a0 87 72 de df fb 1f b8 36 b1 38 5d ff ff 0", + "fast 2nd level codes and too far back", 0, -8, 258, Z_DATA_ERROR); + inf("63 18 5 8c 10 8 0 0 0 0", "very common case", 0, -8, 259, Z_OK); + inf("63 60 60 18 c9 0 8 18 18 18 26 c0 28 0 29 0 0 0", + "contiguous and wrap around window", 6, -8, 259, Z_OK); + inf("63 0 3 0 0 0 0 0", "copy direct from output", 0, -8, 259, + Z_STREAM_END); +} + +int main(void) +{ + fprintf(stderr, "%s\n", zlibVersion()); + cover_support(); + cover_wrap(); + cover_back(); + cover_inflate(); + cover_trees(); + cover_fast(); + return 0; +} |