diff options
Diffstat (limited to 'ext4_utils/ext2simg.c')
| -rw-r--r-- | ext4_utils/ext2simg.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/ext4_utils/ext2simg.c b/ext4_utils/ext2simg.c index 9332bada..d5fc24ff 100644 --- a/ext4_utils/ext2simg.c +++ b/ext4_utils/ext2simg.c @@ -169,7 +169,7 @@ int main(int argc, char **argv) const char *out = NULL; int gzip = 0; int sparse = 1; - int fd; + int infd, outfd; int crc = 0; while ((opt = getopt(argc, argv, "cvzS")) != -1) { @@ -211,18 +211,29 @@ int main(int argc, char **argv) exit(EXIT_FAILURE); } - fd = open(in, O_RDONLY); + infd = open(in, O_RDONLY); - if (fd < 0) + if (infd < 0) critical_error_errno("failed to open input image"); - read_ext(fd); + read_ext(infd); - build_sparse_ext(fd, in); + build_sparse_ext(infd, in); - close(fd); + close(infd); - write_ext4_image(out, gzip, sparse, crc, 0); + if (strcmp(out, "-")) { + outfd = open(out, O_WRONLY | O_CREAT | O_TRUNC, 0644); + if (outfd < 0) { + error_errno("open"); + return EXIT_FAILURE; + } + } else { + outfd = STDOUT_FILENO; + } + + write_ext4_image(outfd, gzip, sparse, crc, 0); + close(outfd); return 0; } |