diff options
Diffstat (limited to 'src/vu-set-alpha.c')
| -rw-r--r-- | src/vu-set-alpha.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/src/vu-set-alpha.c b/src/vu-set-alpha.c index 9250ccb..423e8e9 100644 --- a/src/vu-set-alpha.c +++ b/src/vu-set-alpha.c @@ -11,7 +11,7 @@ static void usage(void) { - eprintf("usage: %s [-i] colour-stream alpha-stream\n", argv0); + eprintf("usage: %s [-i] alpha-stream\n", argv0); } static void @@ -56,16 +56,14 @@ main(int argc, char *argv[]) usage(); } ARGEND; - if (argc != 2) + if (argc != 1) usage(); - colour.file = argv[0]; - colour.fd = open(colour.file, O_RDONLY); - if (colour.fd < 0) - eprintf("open %s:", colour.file); + colour.file = "<stdin>"; + colour.fd = STDIN_FILENO; einit_stream(&colour); - alpha.file = argv[1]; + alpha.file = argv[0]; alpha.fd = open(alpha.file, O_RDONLY); if (alpha.fd < 0) eprintf("open %s:", alpha.file); @@ -88,7 +86,7 @@ main(int argc, char *argv[]) break; } if (alpha.ptr < sizeof(alpha.buf) && !eread_stream(&alpha, SIZE_MAX)) { - close(colour.fd); + close(alpha.fd); alpha.fd = -1; break; } |