1 files changed, 890 insertions, 0 deletions

diff --git a/src/isa-l/igzip/igzip_wrapper_hdr_test.c b/src/isa-l/igzip/igzip_wrapper_hdr_test.c
new file mode 100644
index 000000000..57e099f33
--- /dev/null
+++ b/src/isa-l/igzip/igzip_wrapper_hdr_test.c
@@ -0,0 +1,890 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include "checksum_test_ref.h"
+#include "igzip_lib.h"
+#include "igzip_wrapper.h"
+
+#ifndef TEST_SEED
+# define TEST_SEED 0x1234
+#endif
+#ifndef RANDOMS
+# define RANDOMS 0x4000
+#endif
+
+#define EXTRA_SIZE_MAX 256
+#define NAME_SIZE_MAX 256
+#define COMMENT_SIZE_MAX 1024
+
+#define EXTRA_SIZE 10
+#define NAME_SIZE 25
+#define COMMENT_SIZE 192
+
+enum {
+	INVALID_WRAPPER = ISAL_INVALID_WRAPPER,
+	UNSUPPORTED_METHOD = ISAL_UNSUPPORTED_METHOD,
+	INCORRECT_CHECKSUM = ISAL_INCORRECT_CHECKSUM,
+	NO_ERROR = ISAL_DECOMP_OK,
+	END_INPUT = ISAL_END_INPUT,
+	NAME_OVERFLOW = ISAL_NAME_OVERFLOW,
+	COMMENT_OVERFLOW = ISAL_COMMENT_OVERFLOW,
+	EXTRA_OVERFLOW = ISAL_EXTRA_OVERFLOW,
+	INCORRECT_TEXT_FLAG,
+	INCORRECT_TIME,
+	INCORRECT_XFLAGS,
+	INCORRECT_OS,
+	INCORRECT_EXTRA_LEN,
+	INCORRECT_EXTRA_BUF,
+	INCORRECT_NAME,
+	INCORRECT_COMMENT,
+	INCORRECT_INFO,
+	INCORRECT_LEVEL,
+	INCORRECT_DICT_FLAG,
+	INCORRECT_DICT_ID,
+	INCORRECT_HDR_LEN,
+	INSUFFICIENT_BUFFER_SIZE,
+	INCORRECT_WRITE_RETURN,
+	MALLOC_FAILED
+};
+
+void print_error(int32_t error)
+{
+	printf("Error Code %d: ", error);
+	switch (error) {
+	case END_INPUT:
+		printf("End of input reached before header decompressed\n");
+		break;
+	case INVALID_WRAPPER:
+		printf("Invalid gzip wrapper found\n");
+		break;
+	case UNSUPPORTED_METHOD:
+		printf("Unsupported decompression method found\n");
+		break;
+	case INCORRECT_CHECKSUM:
+		printf("Incorrect header checksum found\n");
+		break;
+	case NAME_OVERFLOW:
+		printf("Name buffer overflow while decompression\n");
+		break;
+	case COMMENT_OVERFLOW:
+		printf("Comment buffer overflow while decompressing\n");
+	case EXTRA_OVERFLOW:
+		printf("Extra buffer overflow while decomrpessiong\n");
+		break;
+	case INCORRECT_TEXT_FLAG:
+		printf("Incorrect text field found\n");
+		break;
+	case INCORRECT_TIME:
+		printf("Incorrect time filed found\n");
+		break;
+	case INCORRECT_XFLAGS:
+		printf("Incorrect xflags field found\n");
+		break;
+	case INCORRECT_OS:
+		printf("Incorrect os field found\n");
+		break;
+	case INCORRECT_EXTRA_LEN:
+		printf("Incorect extra_len field found\n");
+		break;
+	case INCORRECT_EXTRA_BUF:
+		printf("Incorrect extra buffer found\n");
+		break;
+	case INCORRECT_NAME:
+		printf("Incorrect name found\n");
+		break;
+	case INCORRECT_COMMENT:
+		printf("Incorrect comment found\n");
+		break;
+	case INCORRECT_INFO:
+		printf("Incorrect info found\n");
+		break;
+	case INCORRECT_LEVEL:
+		printf("Incorrect level found\n");
+		break;
+	case INCORRECT_DICT_FLAG:
+		printf("Incorrect dictionary flag found\n");
+		break;
+	case INCORRECT_DICT_ID:
+		printf("Incorrect dictionary id found\n");
+		break;
+	case INCORRECT_HDR_LEN:
+		printf("Incorrect header length found\n");
+		break;
+	case INSUFFICIENT_BUFFER_SIZE:
+		printf("Insufficient buffer size to write header\n");
+		break;
+	case INCORRECT_WRITE_RETURN:
+		printf("Header write returned an incorrect value\n");
+		break;
+	case MALLOC_FAILED:
+		printf("Failed to allocate buffers\n");
+		break;
+	case NO_ERROR:
+		printf("No error found\n");
+	}
+}
+
+void print_uint8_t(uint8_t * array, uint64_t length, char *prepend)
+{
+	const int line_size = 16;
+	int i;
+
+	if (array == NULL)
+		printf("%s(NULL)", prepend);
+	else if (length == 0)
+		printf("%s(Empty)", prepend);
+
+	for (i = 0; i < length; i++) {
+		if (i == 0)
+			printf("%s0x%04x\t", prepend, i);
+		else if ((i % line_size) == 0)
+			printf("\n%s0x%04x\t", prepend, i);
+		else
+			printf(" ");
+		printf("0x%02x,", array[i]);
+	}
+	printf("\n");
+}
+
+void print_string(char *str, uint32_t str_max_len, char *prepend)
+{
+	const int line_size = 64;
+	uint32_t i = 0;
+
+	while (str[i] != 0 && i < str_max_len) {
+		if (i == 0)
+			printf("%s0x%04x\t", prepend, i);
+		else if ((i % line_size) == 0)
+			printf("\n%s0x%04x\t", prepend, i);
+
+		printf("%c", str[i]);
+		i++;
+	}
+	printf("\n");
+}
+
+void print_gzip_header(struct isal_gzip_header *gz_hdr, char *prepend1, char *prepend2)
+{
+	printf("%sText: %d, Time: 0x%08x, Xflags: 0x%x, OS: 0x%x\n", prepend1,
+	       gz_hdr->text, gz_hdr->time, gz_hdr->xflags, gz_hdr->os);
+
+	printf("%sExtra:  Extra_len = 0x%x\n", prepend1, gz_hdr->extra_len);
+	if (gz_hdr->extra_len < EXTRA_SIZE_MAX)
+		print_uint8_t(gz_hdr->extra, gz_hdr->extra_len, prepend2);
+	else
+		printf("%sExtra field larger than EXTRA_SIZE_MAX\n", prepend2);
+
+	printf("%sName:\n", prepend1);
+	if (gz_hdr->name_buf_len < NAME_SIZE_MAX)
+		print_string(gz_hdr->name, gz_hdr->name_buf_len, prepend2);
+	else
+		printf("%sName field larger than NAME_SIZE_MAX\n", prepend2);
+
+	printf("%sComment:\n", prepend1);
+	if (gz_hdr->comment_buf_len < COMMENT_SIZE_MAX)
+		print_string(gz_hdr->comment, gz_hdr->comment_buf_len, prepend2);
+	else
+		printf("%sComment field larger than COMMENT_SIZE_MAX\n", prepend2);
+}
+
+void print_zlib_header(struct isal_zlib_header *z_hdr, char *prepend)
+{
+	printf("%sInfo: 0x%x\n", prepend, z_hdr->info);
+	printf("%sLevel: 0x%x\n", prepend, z_hdr->level);
+	printf("%sDictionary: Flag = 0x%x, Id =0x%x\n", prepend, z_hdr->dict_flag,
+	       z_hdr->dict_id);
+}
+
+void print_gzip_final_verbose(uint8_t * hdr_buf, uint32_t hdr_buf_len,
+			      struct isal_gzip_header *gz_hdr_orig,
+			      struct isal_gzip_header *gz_hdr)
+{
+#ifdef VERBOSE
+	printf("\n");
+	if (gz_hdr_orig != NULL) {
+		printf("Original Gzip Header Struct:\n");
+		print_gzip_header(gz_hdr_orig, "\t", "\t\t");
+		printf("\n");
+	}
+
+	if (gz_hdr != NULL) {
+		printf("Parsed Gzip Header Struct:\n");
+		print_gzip_header(gz_hdr, "\t", "\t\t");
+		printf("\n");
+	}
+
+	if (hdr_buf != NULL) {
+		printf("Serialized Gzip Header:\n");
+		print_uint8_t(hdr_buf, hdr_buf_len, "\t");
+		printf("\n");
+	}
+#endif
+	return;
+}
+
+void print_zlib_final_verbose(uint8_t * hdr_buf, uint32_t hdr_buf_len,
+			      struct isal_zlib_header *z_hdr_orig,
+			      struct isal_zlib_header *z_hdr)
+{
+#ifdef VERBOSE
+	printf("\n");
+	if (z_hdr_orig != NULL) {
+		printf("Original Zlib Header Struct:\n");
+		print_zlib_header(z_hdr_orig, "\t");
+		printf("\n");
+	}
+
+	if (z_hdr != NULL) {
+		printf("Parsed Zlib Header Struct:\n");
+		print_zlib_header(z_hdr, "\t");
+		printf("\n");
+	}
+
+	if (hdr_buf != NULL) {
+		printf("Serialized Zlib Header:\n");
+		print_uint8_t(hdr_buf, hdr_buf_len, "\t");
+		printf("\n");
+	}
+#endif
+	return;
+}
+
+int gzip_header_size(struct isal_gzip_header *gz_hdr)
+{
+	int hdr_size = 10;
+	if (gz_hdr->extra != NULL) {
+		hdr_size += 2 + gz_hdr->extra_len;
+	}
+	if (gz_hdr->name != NULL) {
+		hdr_size += strnlen(gz_hdr->name, gz_hdr->name_buf_len) + 1;
+	}
+	if (gz_hdr->comment != NULL) {
+		hdr_size += strnlen(gz_hdr->comment, gz_hdr->comment_buf_len) + 1;
+	}
+
+	if (gz_hdr->hcrc) {
+		hdr_size += 2;
+	}
+
+	return hdr_size;
+}
+
+int zlib_header_size(struct isal_zlib_header *z_hdr)
+{
+	if (z_hdr->dict_flag)
+		return 6;
+	else
+		return 2;
+}
+
+void rand_string(char *string, uint32_t str_len)
+{
+	int i;
+
+	if (str_len == 0 || string == NULL)
+		return;
+	for (i = 0; i < str_len - 1; i++) {
+		string[i] = rand() % 26 + 65;
+	}
+	string[str_len - 1] = 0;
+}
+
+void rand_buf(uint8_t * buf, uint32_t buf_len)
+{
+	int i;
+
+	if (buf_len == 0 || buf == NULL)
+		return;
+
+	for (i = 0; i < buf_len; i++) {
+		buf[i] = rand();
+	}
+}
+
+int malloc_gzip_header(struct isal_gzip_header *gz_hdr)
+{
+	gz_hdr->extra = NULL;
+	if (gz_hdr->extra_buf_len) {
+		gz_hdr->extra = malloc(gz_hdr->extra_buf_len);
+		if (gz_hdr->extra == NULL)
+			return MALLOC_FAILED;
+	}
+
+	gz_hdr->name = NULL;
+	if (gz_hdr->name_buf_len) {
+		gz_hdr->name = malloc(gz_hdr->name_buf_len);
+		if (gz_hdr->name == NULL)
+			return MALLOC_FAILED;
+	}
+
+	gz_hdr->comment = NULL;
+	if (gz_hdr->comment_buf_len) {
+		gz_hdr->comment = malloc(gz_hdr->comment_buf_len);
+		if (gz_hdr->comment == NULL)
+			return MALLOC_FAILED;
+	}
+
+	return 0;
+}
+
+void free_gzip_header(struct isal_gzip_header *gz_hdr)
+{
+	if (gz_hdr->extra != NULL) {
+		free(gz_hdr->extra);
+		gz_hdr->extra = NULL;
+	}
+
+	if (gz_hdr->name != NULL) {
+		free(gz_hdr->name);
+		gz_hdr->name = NULL;
+	}
+
+	if (gz_hdr->comment != NULL) {
+		free(gz_hdr->comment);
+		gz_hdr->comment = NULL;
+	}
+
+}
+
+int gen_rand_gzip_header(struct isal_gzip_header *gz_hdr)
+{
+	int ret = 0;
+	int field_set_space = 8;
+
+	isal_gzip_header_init(gz_hdr);
+
+	if (rand() % field_set_space != 0)
+		gz_hdr->text = rand() % 2;
+	if (rand() % field_set_space != 0)
+		gz_hdr->time = rand();
+	if (rand() % field_set_space != 0)
+		gz_hdr->xflags = rand() % 256;
+	if (rand() % field_set_space != 0)
+		gz_hdr->os = rand() % 256;
+
+	if (rand() % field_set_space != 0) {
+		gz_hdr->extra_buf_len = rand() % EXTRA_SIZE_MAX;
+		gz_hdr->extra_len = gz_hdr->extra_buf_len;
+	}
+
+	if (rand() % field_set_space != 0)
+		gz_hdr->name_buf_len = rand() % NAME_SIZE_MAX;
+
+	if (rand() % field_set_space != 0)
+		gz_hdr->comment_buf_len = rand() % COMMENT_SIZE_MAX;
+
+	gz_hdr->hcrc = rand() % 2;
+
+	ret = malloc_gzip_header(gz_hdr);
+	if (ret)
+		return ret;
+
+	rand_buf(gz_hdr->extra, gz_hdr->extra_len);
+	rand_string(gz_hdr->name, gz_hdr->name_buf_len);
+	rand_string(gz_hdr->comment, gz_hdr->comment_buf_len);
+
+	return ret;
+}
+
+void gen_rand_zlib_header(struct isal_zlib_header *z_hdr)
+{
+	z_hdr->info = rand() % 16;
+	z_hdr->level = rand() % 4;
+	z_hdr->dict_flag = rand() % 2;
+	z_hdr->dict_id = rand();
+}
+
+int write_gzip_header(uint8_t * hdr_buf, uint32_t hdr_buf_len, struct isal_gzip_header *gz_hdr)
+{
+
+	struct isal_zstream stream;
+	uint32_t hdr_len = gzip_header_size(gz_hdr);
+	uint32_t len;
+
+	isal_deflate_init(&stream);
+	stream.next_out = hdr_buf;
+	stream.avail_out = rand() % hdr_len;
+	len = isal_write_gzip_header(&stream, gz_hdr);
+
+	if (len != hdr_len) {
+		printf("len = %d, hdr_buf_len = %d\n", len, hdr_len);
+		print_gzip_final_verbose(hdr_buf, hdr_buf_len, gz_hdr, NULL);
+		print_error(INCORRECT_HDR_LEN);
+		return INCORRECT_HDR_LEN;
+	}
+
+	if (hdr_buf_len < hdr_len) {
+		print_gzip_final_verbose(NULL, 0, gz_hdr, NULL);
+		print_error(INSUFFICIENT_BUFFER_SIZE);
+		return INSUFFICIENT_BUFFER_SIZE;
+	}
+
+	stream.avail_out = hdr_buf_len;
+
+	len = isal_write_gzip_header(&stream, gz_hdr);
+
+	if (len) {
+		print_gzip_final_verbose(hdr_buf, hdr_buf_len, gz_hdr, NULL);
+		print_error(INCORRECT_WRITE_RETURN);
+		return INCORRECT_WRITE_RETURN;;
+	}
+
+	return 0;
+}
+
+int write_zlib_header(uint8_t * hdr_buf, uint32_t hdr_buf_len, struct isal_zlib_header *z_hdr)
+{
+	struct isal_zstream stream;
+	uint32_t hdr_len = zlib_header_size(z_hdr);
+	uint32_t len;
+
+	isal_deflate_init(&stream);
+	stream.next_out = hdr_buf;
+	stream.avail_out = rand() % hdr_len;
+	len = isal_write_zlib_header(&stream, z_hdr);
+
+	if (len != hdr_len) {
+		print_zlib_final_verbose(hdr_buf, hdr_buf_len, z_hdr, NULL);
+		print_error(INCORRECT_HDR_LEN);
+		return INCORRECT_HDR_LEN;
+	}
+
+	if (hdr_buf_len < hdr_len) {
+		print_zlib_final_verbose(NULL, 0, z_hdr, NULL);
+		print_error(INSUFFICIENT_BUFFER_SIZE);
+		return INSUFFICIENT_BUFFER_SIZE;
+	}
+
+	stream.avail_out = hdr_buf_len;
+
+	len = isal_write_zlib_header(&stream, z_hdr);
+
+	if (len) {
+		print_zlib_final_verbose(hdr_buf, hdr_buf_len, z_hdr, NULL);
+		print_error(INCORRECT_WRITE_RETURN);
+		return INCORRECT_WRITE_RETURN;;
+	}
+
+	return 0;
+}
+
+int compare_gzip_headers(struct isal_gzip_header *gz_hdr1, struct isal_gzip_header *gz_hdr2)
+{
+	int ret = 0;
+	uint32_t max_len;
+
+	if (gz_hdr1->text != gz_hdr2->text)
+		return INCORRECT_TEXT_FLAG;
+
+	if (gz_hdr1->time != gz_hdr2->time)
+		return INCORRECT_TIME;
+
+	if (gz_hdr1->xflags != gz_hdr2->xflags)
+		return INCORRECT_XFLAGS;
+
+	if (gz_hdr1->os != gz_hdr2->os)
+		return INCORRECT_OS;
+
+	if (gz_hdr1->extra_len != gz_hdr2->extra_len)
+		return INCORRECT_EXTRA_LEN;
+
+	if (gz_hdr1->extra != NULL && gz_hdr2->extra != NULL) {
+		ret = memcmp(gz_hdr1->extra, gz_hdr2->extra, gz_hdr1->extra_len);
+		if (ret)
+			return INCORRECT_EXTRA_BUF;
+	}
+
+	if (gz_hdr1->name != NULL && gz_hdr2->name != NULL) {
+		max_len = gz_hdr1->name_buf_len;
+		if (gz_hdr1->name_buf_len < gz_hdr2->name_buf_len)
+			max_len = gz_hdr2->name_buf_len;
+
+		ret = strncmp(gz_hdr1->name, gz_hdr2->name, max_len);
+		if (ret)
+			return INCORRECT_NAME;
+	}
+
+	if (gz_hdr1->comment != NULL && gz_hdr2->comment != NULL) {
+		max_len = gz_hdr1->comment_buf_len;
+		if (gz_hdr1->comment_buf_len < gz_hdr2->comment_buf_len)
+			max_len = gz_hdr2->comment_buf_len;
+
+		ret = strncmp(gz_hdr1->comment, gz_hdr2->comment, max_len);
+		if (ret)
+			return INCORRECT_COMMENT;
+	}
+	return ret;
+}
+
+int compare_zlib_headers(struct isal_zlib_header *z_hdr1, struct isal_zlib_header *z_hdr2)
+{
+	if (z_hdr1->info != z_hdr2->info)
+		return INCORRECT_INFO;
+
+	if (z_hdr1->level != z_hdr2->level)
+		return INCORRECT_LEVEL;
+
+	if (z_hdr1->dict_flag != z_hdr2->dict_flag)
+		return INCORRECT_DICT_FLAG;
+
+	if (z_hdr1->dict_flag && z_hdr1->dict_id != z_hdr2->dict_id)
+		return INCORRECT_DICT_ID;
+
+	return 0;
+}
+
+int read_gzip_header_simple(uint8_t * hdr_buf, uint32_t hdr_buf_len,
+			    struct isal_gzip_header *gz_hdr_orig)
+{
+
+	int ret = 0;
+	struct inflate_state state;
+	struct isal_gzip_header gz_hdr;
+
+	rand_buf((uint8_t *) & gz_hdr, sizeof(gz_hdr));
+	gz_hdr.extra_buf_len = gz_hdr_orig->extra_buf_len;
+	gz_hdr.name_buf_len = gz_hdr_orig->name_buf_len;
+	gz_hdr.comment_buf_len = gz_hdr_orig->comment_buf_len;
+
+	ret = malloc_gzip_header(&gz_hdr);
+	if (ret) {
+		print_gzip_final_verbose(hdr_buf, hdr_buf_len, gz_hdr_orig, NULL);
+		print_error(ret);
+		free_gzip_header(&gz_hdr);
+		return ret;
+	}
+
+	isal_inflate_init(&state);
+	state.next_in = hdr_buf;
+	state.avail_in = hdr_buf_len;
+	ret = isal_read_gzip_header(&state, &gz_hdr);
+
+	if (ret) {
+		print_gzip_final_verbose(hdr_buf, hdr_buf_len, gz_hdr_orig, &gz_hdr);
+		print_error(ret);
+		free_gzip_header(&gz_hdr);
+		return ret;
+	}
+
+	ret = compare_gzip_headers(gz_hdr_orig, &gz_hdr);
+
+	if (ret) {
+		print_gzip_final_verbose(hdr_buf, hdr_buf_len, gz_hdr_orig, &gz_hdr);
+		print_error(ret);
+	}
+
+	free_gzip_header(&gz_hdr);
+	return ret;
+}
+
+int read_zlib_header_simple(uint8_t * hdr_buf, uint32_t hdr_buf_len,
+			    struct isal_zlib_header *z_hdr_orig)
+{
+
+	int ret = 0;
+	struct inflate_state state;
+	struct isal_zlib_header z_hdr;
+
+	rand_buf((uint8_t *) & z_hdr, sizeof(z_hdr));
+
+	if (ret) {
+		print_zlib_final_verbose(hdr_buf, hdr_buf_len, z_hdr_orig, NULL);
+		print_error(ret);
+		return ret;
+	}
+
+	isal_inflate_init(&state);
+	state.next_in = hdr_buf;
+	state.avail_in = hdr_buf_len;
+	ret = isal_read_zlib_header(&state, &z_hdr);
+
+	if (ret) {
+		print_zlib_final_verbose(hdr_buf, hdr_buf_len, z_hdr_orig, &z_hdr);
+		print_error(ret);
+		return ret;
+	}
+
+	ret = compare_zlib_headers(z_hdr_orig, &z_hdr);
+
+	if (ret) {
+		print_zlib_final_verbose(hdr_buf, hdr_buf_len, z_hdr_orig, &z_hdr);
+		print_error(ret);
+	}
+
+	return ret;
+}
+
+int read_gzip_header_streaming(uint8_t * hdr_buf, uint32_t hdr_buf_len,
+			       struct isal_gzip_header *gz_hdr_orig)
+{
+	int ret = 0;
+	uint32_t max_dec_size, dec_size, max_extra_len, extra_len;
+	uint32_t max_name_len, name_len, max_comment_len, comment_len;
+	struct inflate_state state;
+	struct isal_gzip_header gz_hdr;
+	void *tmp_ptr;
+
+	rand_buf((uint8_t *) & gz_hdr, sizeof(gz_hdr));
+
+	max_dec_size = (rand() % hdr_buf_len) + 2;
+
+	max_extra_len = 2;
+	max_name_len = 2;
+	max_comment_len = 2;
+	if (gz_hdr_orig->extra_buf_len)
+		max_extra_len = (rand() % gz_hdr_orig->extra_buf_len) + 2;
+	if (gz_hdr_orig->name_buf_len)
+		max_name_len = (rand() % gz_hdr_orig->name_buf_len) + 2;
+	if (gz_hdr_orig->comment_buf_len)
+		max_comment_len = (rand() % gz_hdr_orig->comment_buf_len) + 2;
+
+	extra_len = rand() % max_extra_len;
+	name_len = rand() % max_name_len;
+	comment_len = rand() % max_comment_len;
+
+	if (extra_len == 0)
+		extra_len = 1;
+	if (name_len == 0)
+		name_len = 1;
+	if (comment_len == 0)
+		comment_len = 1;
+
+	gz_hdr.extra_buf_len = extra_len;
+	gz_hdr.name_buf_len = name_len;
+	gz_hdr.comment_buf_len = comment_len;
+
+	ret = malloc_gzip_header(&gz_hdr);
+
+	if (ret) {
+		print_gzip_final_verbose(hdr_buf, hdr_buf_len, gz_hdr_orig, NULL);
+		print_error(ret);
+		free_gzip_header(&gz_hdr);
+		return (ret == 0);
+	}
+
+	isal_inflate_init(&state);
+
+	state.next_in = hdr_buf;
+	dec_size = rand() % max_dec_size;
+	if (dec_size > hdr_buf_len)
+		dec_size = hdr_buf_len;
+
+	state.avail_in = dec_size;
+	hdr_buf_len -= dec_size;
+
+	while (1) {
+		ret = isal_read_gzip_header(&state, &gz_hdr);
+
+		switch (ret) {
+		case ISAL_NAME_OVERFLOW:
+			if (name_len >= NAME_SIZE_MAX)
+				break;
+
+			name_len += rand() % max_name_len;
+			tmp_ptr = realloc(gz_hdr.name, name_len);
+			if (tmp_ptr == NULL) {
+				ret = MALLOC_FAILED;
+				break;
+			}
+			gz_hdr.name = tmp_ptr;
+			gz_hdr.name_buf_len = name_len;
+			continue;
+		case ISAL_COMMENT_OVERFLOW:
+			if (comment_len >= COMMENT_SIZE_MAX)
+				break;
+
+			comment_len += rand() % max_comment_len;
+			tmp_ptr = realloc(gz_hdr.comment, comment_len);
+			if (tmp_ptr == NULL) {
+				ret = MALLOC_FAILED;
+				break;
+			}
+			gz_hdr.comment = tmp_ptr;
+			gz_hdr.comment_buf_len = comment_len;
+			continue;
+		case ISAL_EXTRA_OVERFLOW:
+			if (extra_len >= EXTRA_SIZE_MAX)
+				break;
+
+			extra_len += rand() % max_extra_len;
+			tmp_ptr = realloc(gz_hdr.extra, extra_len);
+			if (tmp_ptr == NULL) {
+				ret = MALLOC_FAILED;
+				break;
+			}
+			gz_hdr.extra = tmp_ptr;
+			gz_hdr.extra_buf_len = extra_len;
+			continue;
+		case ISAL_END_INPUT:
+			if (hdr_buf_len == 0)
+				break;
+
+			dec_size = rand() % max_dec_size;
+			if (dec_size > hdr_buf_len)
+				dec_size = hdr_buf_len;
+
+			state.avail_in = dec_size;
+			hdr_buf_len -= dec_size;
+			continue;
+		}
+
+		break;
+	}
+
+	if (ret) {
+		print_gzip_final_verbose(hdr_buf, hdr_buf_len, gz_hdr_orig, &gz_hdr);
+		print_error(ret);
+		free_gzip_header(&gz_hdr);
+		return ret;
+	}
+
+	ret = compare_gzip_headers(gz_hdr_orig, &gz_hdr);
+
+	if (ret) {
+		print_gzip_final_verbose(hdr_buf, hdr_buf_len, gz_hdr_orig, &gz_hdr);
+		print_error(ret);
+	}
+
+	free_gzip_header(&gz_hdr);
+	return ret;
+}
+
+int read_zlib_header_streaming(uint8_t * hdr_buf, uint32_t hdr_buf_len,
+			       struct isal_zlib_header *z_hdr_orig)
+{
+	int ret = ISAL_END_INPUT;
+	uint32_t max_dec_size, dec_size;
+	struct inflate_state state;
+	struct isal_zlib_header z_hdr;
+
+	rand_buf((uint8_t *) & z_hdr, sizeof(z_hdr));
+
+	max_dec_size = (rand() % hdr_buf_len) + 2;
+
+	isal_inflate_init(&state);
+
+	state.next_in = hdr_buf;
+	while (ret == ISAL_END_INPUT && hdr_buf_len > 0) {
+		dec_size = rand() % max_dec_size;
+		if (dec_size > hdr_buf_len)
+			dec_size = hdr_buf_len;
+
+		state.avail_in = dec_size;
+		hdr_buf_len -= dec_size;
+
+		ret = isal_read_zlib_header(&state, &z_hdr);
+	}
+
+	if (ret) {
+		print_zlib_final_verbose(hdr_buf, hdr_buf_len, z_hdr_orig, &z_hdr);
+		print_error(ret);
+		return ret;
+	}
+
+	ret = compare_zlib_headers(z_hdr_orig, &z_hdr);
+
+	if (ret) {
+		print_zlib_final_verbose(hdr_buf, hdr_buf_len, z_hdr_orig, &z_hdr);
+		print_error(ret);
+	}
+
+	return ret;
+}
+
+int main(int argc, char *argv[])
+{
+	uint8_t *hdr_buf;
+	uint32_t hdr_buf_len;
+	int ret = 0, fin_ret = 0;
+	struct isal_gzip_header gz_hdr_orig;
+	struct isal_zlib_header z_hdr_orig;
+	int i;
+
+#ifndef VERBOSE
+	setbuf(stdout, NULL);
+#endif
+	printf("Test Seed  : %d\n", TEST_SEED);
+	printf("Randoms    : %d\n", RANDOMS);
+	srand(TEST_SEED);
+
+	printf("gzip wrapper test: ");
+	for (i = 0; i < RANDOMS; i++) {
+		rand_buf((uint8_t *) & gz_hdr_orig, sizeof(gz_hdr_orig));
+
+		ret = gen_rand_gzip_header(&gz_hdr_orig);
+		if (ret) {
+			print_error(ret);
+			return (ret == 0);
+		}
+
+		hdr_buf_len = gzip_header_size(&gz_hdr_orig);
+		hdr_buf = malloc(hdr_buf_len);
+
+		ret = write_gzip_header(hdr_buf, hdr_buf_len, &gz_hdr_orig);
+
+		fin_ret |= ret;
+		if (ret)
+			return (ret == 0);
+
+		ret = read_gzip_header_simple(hdr_buf, hdr_buf_len, &gz_hdr_orig);
+
+		fin_ret |= ret;
+		if (ret)
+			return (ret == 0);
+
+		ret = read_gzip_header_streaming(hdr_buf, hdr_buf_len, &gz_hdr_orig);
+
+		fin_ret |= ret;
+		if (ret)
+			return (ret == 0);
+
+		free_gzip_header(&gz_hdr_orig);
+		if (hdr_buf != NULL)
+			free(hdr_buf);
+
+		if (i % (RANDOMS / 16) == 0)
+			printf(".");
+	}
+	printf("Pass \n");
+
+	printf("zlib wrapper test: ");
+	for (i = 0; i < RANDOMS; i++) {
+		memset(&z_hdr_orig, 0, sizeof(z_hdr_orig));
+
+		gen_rand_zlib_header(&z_hdr_orig);
+
+		hdr_buf_len = zlib_header_size(&z_hdr_orig);
+		hdr_buf = malloc(hdr_buf_len);
+
+		ret = write_zlib_header(hdr_buf, hdr_buf_len, &z_hdr_orig);
+
+		fin_ret |= ret;
+		if (ret)
+			return (ret == 0);
+
+		ret = read_zlib_header_simple(hdr_buf, hdr_buf_len, &z_hdr_orig);
+
+		fin_ret |= ret;
+		if (ret)
+			return (ret == 0);
+
+		ret = read_zlib_header_streaming(hdr_buf, hdr_buf_len, &z_hdr_orig);
+
+		fin_ret |= ret;
+		if (ret)
+			return (ret == 0);
+
+		if (hdr_buf != NULL)
+			free(hdr_buf);
+
+		if (i % (RANDOMS / 16) == 0)
+			printf(".");
+	}
+	printf("Pass \n");
+
+	printf("igzip wrapper_hdr test finished:%s \n",
+	       fin_ret ? " Some tests failed " : " All tests passed");
+
+	return 0;
+}