diff options
Diffstat (limited to 'src/blind-from-image.c')
| -rw-r--r-- | src/blind-from-image.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/src/blind-from-image.c b/src/blind-from-image.c index 9c2d047..7040038 100644 --- a/src/blind-from-image.c +++ b/src/blind-from-image.c @@ -97,10 +97,16 @@ static size_t pam_head(int fd, const char *fname) { size_t ptr; + ssize_t r; char *p; unsigned long long int maxval = UINT8_MAX; for (ptr = 0;;) { - ptr += ereadall(fd, buf + ptr, (size_t)buf - ptr, fname); + r = read(fd, buf + ptr, sizeof(buf) - 1); + if (r < 0) + eprintf("read %s:", fname); + if (r == 0) + eprintf("%s\n", conv_fail_msg); + ptr += (size_t)r; for (;;) { p = memchr(buf, '\n', ptr); if (!p) { @@ -148,13 +154,13 @@ pam_head(int fd, const char *fname) } } header_done: - if (maxval < (size_t)UINT8_MAX) { + if (maxval <= (size_t)UINT8_MAX) { pixel_size = sizeof(uint8_t); get_value = get_value_u8; - } else if (maxval < (size_t)UINT16_MAX) { + } else if (maxval <= (size_t)UINT16_MAX) { pixel_size = sizeof(uint16_t); get_value = get_value_u16; - } else if (maxval < (size_t)UINT32_MAX) { + } else if (maxval <= (size_t)UINT32_MAX) { pixel_size = sizeof(uint32_t); get_value = get_value_u32; } else { @@ -176,7 +182,6 @@ main(int argc, char *argv[]) size_t off, n; ssize_t r; const char *file = "<subprocess>"; - const char *conv_fail_msg = "convertion failed, if converting a farbfeld file, try -f"; ARGBEGIN { case 'f': @@ -202,7 +207,7 @@ main(int argc, char *argv[]) else forked = 1; - if (forked) { + if (!forked) { file = "<stdin>"; pipe_rw[0] = STDIN_FILENO; goto after_fork; |