GopherProxy

	blind-decompress.c - blind - suckless command-line video editing utility
	git clone git://git.suckless.org/blind
	Log
	Files
	Refs
	README
	LICENSE
	---
	blind-decompress.c (1318B)
	---
	1 /* See LICENSE file for copyright and license details. */
	2 #include "common.h"
	3
	4 USAGE("")
	5
	6 int
	7 main(int argc, char *argv[])
	8 {
	9 struct stream stream;
	10 char *buf;
	11 size_t m, fptr, sptr, same = 0, diff = 0;
	12
	13 UNOFLAGS(argc);
	14
	15 eopen_stream(&stream, NULL);
	16 echeck_dimensions(&stream, WIDTH \| HEIGHT, NULL);
	17 fprint_stream_head(stdout, &stream);
	18 efflush(stdout, "<stdout>");
	19
	20 buf = ecalloc(1, stream.frame_size);
	21
	22 fptr = 0;
	23 do {
	24 sptr = 0;
	25 again:
	26 while (same) {
	27 m = MIN(same, stream.frame_size - fptr);
	28 ewriteall(STDOUT_FILENO, buf + fptr, m, "<stdout…
	29 fptr = (fptr + m) % stream.frame_size;
	30 same -= m;
	31 }
	32
	33 while (diff && sptr < stream.ptr) {
	34 m = MIN(diff, stream.frame_size - fptr);
	35 m = MIN(m, stream.ptr - sptr);
	36 memcpy(buf + fptr, stream.buf + sptr, m);
	37 ewriteall(STDOUT_FILENO, buf + fptr, m, "<stdout…
	38 fptr = (fptr + m) % stream.frame_size;
	39 diff -= m;
	40 sptr += m;
	41 }
	42
	43 if (diff \|\| sptr + 2 * sizeof(size_t) > stream.ptr) {
	44 memmove(stream.buf, stream.buf + sptr, stream.pt…
	45 } else {
	46 same = ((size_t *)(stream.buf + sptr))[0];
	47 diff = ((size_t *)(stream.buf + sptr))[1];
	48 sptr += 2 * sizeof(size_t);
	49 goto again;
	50 }
	51 } while (eread_stream(&stream, SIZE_MAX));
	52
	53 free(buf);
	54 if (same \|\| diff)
	55 eprintf("<stdin>: corrupt input\n");
	56 return 0;
	57 }