list_xattrs_ll.c

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#include <sqsh.h>
#include <stdio.h>
 
int
main(int argc, char *argv[]) {
    int error_code = 0;
    if (argc != 3) {
        printf("Usage: %s <sqsh-file> <path>\n", argv[0]);
        return 1;
    }
    struct SqshConfig config = {
            // Read the header file to find documentation on these fields.
            // It's safe to set them all to 0.
            .source_mapper = sqsh_mapper_impl_mmap,
            .source_size = 0,
            .mapper_block_size = 0,
            .mapper_lru_size = 0,
            .metablock_lru_size = 0,
            .data_lru_size = 0,
            .archive_offset = 0,
            .max_symlink_depth = 0,
    };
    struct SqshArchive *archive =
            sqsh_archive_open(argv[1], &config, &error_code);
    if (error_code != 0) {
        sqsh_perror(error_code, "sqsh_archive_new");
        return 1;
    }
    struct SqshFile *file = sqsh_open(archive, argv[2], &error_code);
    if (error_code != 0) {
        sqsh_perror(error_code, "sqsh_open");
        return 1;
    }
 
    struct SqshXattrIterator *iterator =
            sqsh_xattr_iterator_new(file, &error_code);
    if (error_code != 0) {
        sqsh_perror(error_code, "sqsh_xattr_iterator_new");
        return 1;
    }
 
    while (sqsh_xattr_iterator_next(iterator, &error_code)) {
        const char *prefix = sqsh_xattr_iterator_prefix(iterator);
        const size_t prefix_size = sqsh_xattr_iterator_prefix_size(iterator);
        const char *name = sqsh_xattr_iterator_name(iterator);
        const size_t name_size = sqsh_xattr_iterator_name_size(iterator);
        const char *value = sqsh_xattr_iterator_value(iterator);
        const size_t value_size = sqsh_xattr_iterator_value_size2(iterator);
 
        printf("%.*s%.*s=%.*s\n", (int)prefix_size, prefix, (int)name_size,
               name, (int)value_size, value);
    }
    if (error_code < 0) {
        sqsh_perror(error_code, "sqsh_xattr_iterator_next");
        return 1;
    }
 
    sqsh_xattr_iterator_free(iterator);
    sqsh_close(file);
    sqsh_archive_close(archive);
    return 0;
}