diff options
Diffstat (limited to 'depends/xz-embedded/xzminidec.c')
-rw-r--r-- | depends/xz-embedded/xzminidec.c | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/depends/xz-embedded/xzminidec.c b/depends/xz-embedded/xzminidec.c deleted file mode 100644 index bb62c3ac..00000000 --- a/depends/xz-embedded/xzminidec.c +++ /dev/null @@ -1,144 +0,0 @@ -/* - * Simple XZ decoder command line tool - * - * Author: Lasse Collin <lasse.collin@tukaani.org> - * - * This file has been put into the public domain. - * You can do whatever you want with this file. - */ - -/* - * This is really limited: Not all filters from .xz format are supported, - * only CRC32 is supported as the integrity check, and decoding of - * concatenated .xz streams is not supported. Thus, you may want to look - * at xzdec from XZ Utils if a few KiB bigger tool is not a problem. - */ - -#include <stdbool.h> -#include <stdio.h> -#include <string.h> -#include "xz.h" - -static uint8_t in[BUFSIZ]; -static uint8_t out[BUFSIZ]; - -int main(int argc, char **argv) -{ - struct xz_buf b; - struct xz_dec *s; - enum xz_ret ret; - const char *msg; - - if (argc >= 2 && strcmp(argv[1], "--help") == 0) - { - fputs("Uncompress a .xz file from stdin to stdout.\n" - "Arguments other than `--help' are ignored.\n", - stdout); - return 0; - } - - xz_crc32_init(); -#ifdef XZ_USE_CRC64 - xz_crc64_init(); -#endif - - /* - * Support up to 64 MiB dictionary. The actually needed memory - * is allocated once the headers have been parsed. - */ - s = xz_dec_init(XZ_DYNALLOC, 1 << 26); - if (s == NULL) - { - msg = "Memory allocation failed\n"; - goto error; - } - - b.in = in; - b.in_pos = 0; - b.in_size = 0; - b.out = out; - b.out_pos = 0; - b.out_size = BUFSIZ; - - while (true) - { - if (b.in_pos == b.in_size) - { - b.in_size = fread(in, 1, sizeof(in), stdin); - b.in_pos = 0; - } - - ret = xz_dec_run(s, &b); - - if (b.out_pos == sizeof(out)) - { - if (fwrite(out, 1, b.out_pos, stdout) != b.out_pos) - { - msg = "Write error\n"; - goto error; - } - - b.out_pos = 0; - } - - if (ret == XZ_OK) - continue; - -#ifdef XZ_DEC_ANY_CHECK - if (ret == XZ_UNSUPPORTED_CHECK) - { - fputs(argv[0], stderr); - fputs(": ", stderr); - fputs("Unsupported check; not verifying " - "file integrity\n", - stderr); - continue; - } -#endif - - if (fwrite(out, 1, b.out_pos, stdout) != b.out_pos || fclose(stdout)) - { - msg = "Write error\n"; - goto error; - } - - switch (ret) - { - case XZ_STREAM_END: - xz_dec_end(s); - return 0; - - case XZ_MEM_ERROR: - msg = "Memory allocation failed\n"; - goto error; - - case XZ_MEMLIMIT_ERROR: - msg = "Memory usage limit reached\n"; - goto error; - - case XZ_FORMAT_ERROR: - msg = "Not a .xz file\n"; - goto error; - - case XZ_OPTIONS_ERROR: - msg = "Unsupported options in the .xz headers\n"; - goto error; - - case XZ_DATA_ERROR: - case XZ_BUF_ERROR: - msg = "File is corrupt\n"; - goto error; - - default: - msg = "Bug!\n"; - goto error; - } - } - -error: - xz_dec_end(s); - fputs(argv[0], stderr); - fputs(": ", stderr); - fputs(msg, stderr); - return 1; -} |