void
pkg_delete_file(struct pkg *pkg, struct pkg_file *file, unsigned force)
{
const char *sum = pkg_file_cksum(file);
const char *path;
const char *prefix_rel;
struct stat st;
size_t len;
char sha256[SHA256_DIGEST_LENGTH * 2 + 1];
pkg_open_root_fd(pkg);
path = pkg_file_path(file);
path++;
pkg_get(pkg, PKG_PREFIX, &prefix_rel);
prefix_rel++;
len = strlen(prefix_rel);
/* Regular files and links */
/* check sha256 */
if (!force && sum[0] != '\0') {
if (fstatat(pkg->rootfd, path, &st, AT_SYMLINK_NOFOLLOW) == -1) {
pkg_emit_error("cannot stat %s: %s", path, strerror(errno));
return;
}
if (S_ISLNK(st.st_mode)) {
if (pkg_symlink_cksumat(pkg->rootfd, path, NULL,
sha256) != EPKG_OK)
return;
}
else {
if (sha256_fileat(pkg->rootfd, path, sha256) != EPKG_OK)
return;
}
if (strcmp(sha256, sum)) {
pkg_emit_error("%s fails original SHA256 "
"checksum, not removing", path);
return;
}
}
if (unlinkat(pkg->rootfd, path, 0) == -1) {
if (force < 2)
pkg_emit_errno("unlinkat", path);
return;
}
/* do not bother about directories not in prefix */
if ((strncmp(prefix_rel, path, len) == 0) && path[len] == '/')
pkg_add_dir_to_del(pkg, path, NULL);
}
void
pkg_delete_file(struct pkg *pkg, struct pkg_file *file, unsigned force)
{
const char *sum = pkg_file_cksum(file);
const char *path;
struct stat st;
char sha256[SHA256_DIGEST_LENGTH * 2 + 1];
pkg_open_root_fd(pkg);
path = pkg_file_path(file);
path++;
/* Regular files and links */
/* check sha256 */
if (!force && sum[0] != '\0') {
if (fstatat(pkg->rootfd, path, &st, AT_SYMLINK_NOFOLLOW) == -1) {
pkg_emit_error("cannot stat %s: %s", path, strerror(errno));
return;
}
if (S_ISLNK(st.st_mode)) {
if (pkg_symlink_cksumat(pkg->rootfd, path, NULL,
sha256) != EPKG_OK)
return;
}
else {
if (sha256_fileat(pkg->rootfd, path, sha256) != EPKG_OK)
return;
}
if (strcmp(sha256, sum)) {
pkg_emit_error("%s fails original SHA256 "
"checksum, not removing", path);
return;
}
}
if (unlinkat(pkg->rootfd, path, 0) == -1) {
if (force < 2)
pkg_emit_errno("unlinkat", path);
return;
}
}
