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/* See LICENSE file for copyright and license details. */
#include "common.h"
USAGE("(count | 'inf') file")
static size_t count = 0;
static int inf;
static struct stream stream;
static int
repeat_regular_file(void)
{
while (inf || count--) {
fadvise_sequential(stream.fd, (off_t)(stream.headlen), 0);
elseek(stream.fd, (off_t)(stream.headlen), SEEK_SET, stream.file);
if (esend_stream(&stream, STDOUT_FILENO, NULL))
return -1;
}
return 0;
}
static int
repeat_stdin(void)
{
size_t ptr = stream.ptr;
size_t size = MAX(ptr, BUFSIZ);
char *buf = memcpy(emalloc(size), stream.buf, ptr);
egetfile(STDIN_FILENO, &buf, &ptr, &size, "<stdout>");
while (inf || count--)
if (writeall(STDOUT_FILENO, buf, ptr))
return free(buf), -1;
return free(buf), 0;
}
int
main(int argc, char *argv[])
{
UNOFLAGS(argc != 2);
if ((inf = !strcmp(argv[0], "inf")))
einf_check_fd(STDOUT_FILENO, "<stdout>");
else
count = etozu_arg("the count", argv[0], 0, SIZE_MAX);
eopen_stream(&stream, !strcmp(argv[1], "-") ? NULL : argv[1]);
if (count > SIZE_MAX / stream.frames)
eprintf("%s: video is too long\n", stream.file);
stream.frames *= count;
fprint_stream_head(stdout, &stream);
efflush(stdout, "<stdout>");
if (!strcmp(argv[1], "-") ? repeat_stdin() : repeat_regular_file())
if (!inf || errno != EPIPE)
eprintf("write <stdout>:");
close(stream.fd);
return 0;
}
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