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Merge "img2simg: Add support for converting holes to "don't care" chunks"

This commit is contained in:
Treehugger Robot 2022-05-13 19:07:36 +00:00 committed by Gerrit Code Review
parent ec76b5cb4e 6150b00b60
commit 79677f8b49
1 changed files with 30 additions and 11 deletions
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41
libsparse/img2simg.cpp
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@ -38,24 +38,41 @@
#endif
void usage() {
fprintf(stderr, "Usage: img2simg <raw_image_file> <sparse_image_file> [<block_size>]\n");
fprintf(stderr, "Usage: img2simg [-s] <raw_image_file> <sparse_image_file> [<block_size>]\n");
}
int main(int argc, char* argv[]) {
char *arg_in;
char *arg_out;
enum sparse_read_mode mode = SPARSE_READ_MODE_NORMAL;
int extra;
int in;
int opt;
int out;
int ret;
struct sparse_file* s;
unsigned int block_size = 4096;
off64_t len;
if (argc < 3 || argc > 4) {
while ((opt = getopt(argc, argv, "s")) != -1) {
switch (opt) {
case 's':
mode = SPARSE_READ_MODE_HOLE;
break;
default:
usage();
exit(-1);
}
}
extra = argc - optind;
if (extra < 2 || extra > 3) {
usage();
exit(-1);
}
if (argc == 4) {
block_size = atoi(argv[3]);
if (extra == 3) {
block_size = atoi(argv[optind + 2]);
}
if (block_size < 1024 || block_size % 4 != 0) {
@ -63,22 +80,24 @@ int main(int argc, char* argv[]) {
exit(-1);
}
if (strcmp(argv[1], "-") == 0) {
arg_in = argv[optind];
if (strcmp(arg_in, "-") == 0) {
in = STDIN_FILENO;
} else {
in = open(argv[1], O_RDONLY | O_BINARY);
in = open(arg_in, O_RDONLY | O_BINARY);
if (in < 0) {
fprintf(stderr, "Cannot open input file %s\n", argv[1]);
fprintf(stderr, "Cannot open input file %s\n", arg_in);
exit(-1);
}
}
if (strcmp(argv[2], "-") == 0) {
arg_out = argv[optind + 1];
if (strcmp(arg_out, "-") == 0) {
out = STDOUT_FILENO;
} else {
out = open(argv[2], O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0664);
out = open(arg_out, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0664);
if (out < 0) {
fprintf(stderr, "Cannot open output file %s\n", argv[2]);
fprintf(stderr, "Cannot open output file %s\n", arg_out);
exit(-1);
}
}
@ -93,7 +112,7 @@ int main(int argc, char* argv[]) {
}
sparse_file_verbose(s);
ret = sparse_file_read(s, in, SPARSE_READ_MODE_NORMAL, false);
ret = sparse_file_read(s, in, mode, false);
if (ret) {
fprintf(stderr, "Failed to read file\n");
exit(-1);