#include "lib.h"
#include "fs-sis-common.h"
#include <sys/stat.h>
int fs_sis_path_parse(struct fs *fs, const char *path,
const char **dir_r, const char **hash_r)
{
const char *fname, *p;
fname = strrchr(path, '/');
if (fname == NULL) {
*dir_r = ".";
fname = path;
} else {
*dir_r = t_strdup_until(path, fname);
fname++;
}
p = strchr(fname, '-');
if (p == NULL) {
fs_set_error(fs, "open(%s) failed: "
"Filenames must begin with '<hash>-'", path);
return -1;
}
*hash_r = t_strdup_until(fname, p);
return 0;
}
void fs_sis_try_unlink_hash_file(struct fs *fs, struct fs *super,
const char *path)
{
struct stat st1, st2;
const char *dir, *hash, *hash_path, *hash_dir;
if (fs_sis_path_parse(fs, path, &dir, &hash) == 0 &&
fs_stat(super, path, &st1) == 0 && st1.st_nlink == 2) {
hash_path = t_strdup_printf("%s/"HASH_DIR_NAME"/%s", dir, hash);
if (fs_stat(super, hash_path, &st2) == 0 &&
st1.st_ino == st2.st_ino &&
CMP_DEV_T(st1.st_dev, st2.st_dev)) {
if (fs_unlink(super, hash_path) < 0)
i_error("%s", fs_last_error(super));
else {
hash_dir = t_strdup_printf("%s/"HASH_DIR_NAME,
dir);
(void)fs_rmdir(super, hash_dir);
}
}
}
}