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      1 /*
      2  * Test application for xz_boot.c
      3  *
      4  * Author: Lasse Collin <lasse.collin (at) tukaani.org>
      5  *
      6  * This file has been put into the public domain.
      7  * You can do whatever you want with this file.
      8  */
      9 
     10 #include <stdlib.h>
     11 #include <string.h>
     12 #include <stdio.h>
     13 
     14 #define STATIC static
     15 #define INIT
     16 
     17 static void error(/*const*/ char *msg)
     18 {
     19 	fprintf(stderr, "%s\n", msg);
     20 }
     21 
     22 /* Disable the CRC64 support even if it was enabled in the Makefile. */
     23 #undef XZ_USE_CRC64
     24 
     25 #include "../linux/lib/decompress_unxz.c"
     26 
     27 static uint8_t in[1024 * 1024];
     28 static uint8_t out[1024 * 1024];
     29 
     30 static int fill(void *buf, unsigned int size)
     31 {
     32 	return fread(buf, 1, size, stdin);
     33 }
     34 
     35 static int flush(/*const*/ void *buf, unsigned int size)
     36 {
     37 	return fwrite(buf, 1, size, stdout);
     38 }
     39 
     40 static void test_buf_to_buf(void)
     41 {
     42 	size_t in_size;
     43 	int ret;
     44 	in_size = fread(in, 1, sizeof(in), stdin);
     45 	ret = decompress(in, in_size, NULL, NULL, out, NULL, &error);
     46 	/* fwrite(out, 1, FIXME, stdout); */
     47 	fprintf(stderr, "ret = %d\n", ret);
     48 }
     49 
     50 static void test_buf_to_cb(void)
     51 {
     52 	size_t in_size;
     53 	int in_used;
     54 	int ret;
     55 	in_size = fread(in, 1, sizeof(in), stdin);
     56 	ret = decompress(in, in_size, NULL, &flush, NULL, &in_used, &error);
     57 	fprintf(stderr, "ret = %d; in_used = %d\n", ret, in_used);
     58 }
     59 
     60 static void test_cb_to_cb(void)
     61 {
     62 	int ret;
     63 	ret = decompress(NULL, 0, &fill, &flush, NULL, NULL, &error);
     64 	fprintf(stderr, "ret = %d\n", ret);
     65 }
     66 
     67 /*
     68  * Not used by Linux <= 2.6.37-rc4 and newer probably won't use it either,
     69  * but this kind of use case is still required to be supported by the API.
     70  */
     71 static void test_cb_to_buf(void)
     72 {
     73 	int in_used;
     74 	int ret;
     75 	ret = decompress(in, 0, &fill, NULL, out, &in_used, &error);
     76 	/* fwrite(out, 1, FIXME, stdout); */
     77 	fprintf(stderr, "ret = %d; in_used = %d\n", ret, in_used);
     78 }
     79 
     80 int main(int argc, char **argv)
     81 {
     82 	if (argc != 2)
     83 		fprintf(stderr, "Usage: %s [bb|bc|cc|cb]\n", argv[0]);
     84 	else if (strcmp(argv[1], "bb") == 0)
     85 		test_buf_to_buf();
     86 	else if (strcmp(argv[1], "bc") == 0)
     87 		test_buf_to_cb();
     88 	else if (strcmp(argv[1], "cc") == 0)
     89 		test_cb_to_cb();
     90 	else if (strcmp(argv[1], "cb") == 0)
     91 		test_cb_to_buf();
     92 	else
     93 		fprintf(stderr, "Usage: %s [bb|bc|cc|cb]\n", argv[0]);
     94 
     95 	return 0;
     96 }
     97