diff options
Diffstat (limited to 'tools/ifdtool.c')
| -rw-r--r-- | tools/ifdtool.c | 30 |
1 files changed, 18 insertions, 12 deletions
diff --git a/tools/ifdtool.c b/tools/ifdtool.c index 4cdfdcc..8afb6b5 100644 --- a/tools/ifdtool.c +++ b/tools/ifdtool.c @@ -465,6 +465,16 @@ static int write_regions(char *image, int size) return ret; } +static int perror_fname(const char *fmt, const char *fname) +{ + char msg[strlen(fmt) + strlen(fname) + 1]; + + sprintf(msg, fmt, fname); + perror(msg); + + return -1; +} + /** * write_image() - Write the image to a file * @@ -481,10 +491,10 @@ static int write_image(char *filename, char *image, int size) new_fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH); - if (write(new_fd, image, size) != size) { - perror("Error while writing"); - return -1; - } + if (new_fd < 0) + return perror_fname("Could not open file '%s'", filename); + if (write(new_fd, image, size) != size) + return perror_fname("Could not write file '%s'", filename); close(new_fd); return 0; @@ -586,14 +596,10 @@ int open_for_read(const char *fname, int *sizep) int fd = open(fname, O_RDONLY); struct stat buf; - if (fd == -1) { - perror("Could not open file"); - return -1; - } - if (fstat(fd, &buf) == -1) { - perror("Could not stat file"); - return -1; - } + if (fd == -1) + return perror_fname("Could not open file '%s'", fname); + if (fstat(fd, &buf) == -1) + return perror_fname("Could not stat file '%s'", fname); *sizep = buf.st_size; debug("File %s is %d bytes\n", fname, *sizep); |