return false;
}
+static bool read_all(int fd, void *buf, size_t len)
+{
+ while (len) {
+ ssize_t ret;
+ ret = read(fd, buf, len);
+ if (ret < 0)
+ return false;
+ if (ret == 0) {
+ /* ETOOSHORT? */
+ errno = EWOULDBLOCK;
+ return false;
+ }
+ buf = (char *)buf + ret;
+ len -= ret;
+ }
+ return true;
+}
+
static uint64_t random_number(struct tdb_context *tdb)
{
int fd;
fd = open("/dev/urandom", O_RDONLY);
if (fd >= 0) {
- if (tdb_read_all(fd, &ret, sizeof(ret))) {
- tdb_logerr(tdb, TDB_SUCCESS, TDB_DEBUG_TRACE,
- "tdb_open: random from /dev/urandom");
+ if (read_all(fd, &ret, sizeof(ret))) {
close(fd);
return ret;
}
char reply[1 + sizeof(uint64_t)];
int r = read(fd, reply, sizeof(reply));
if (r > 1) {
- tdb_logerr(tdb, TDB_SUCCESS, TDB_DEBUG_TRACE,
- "tdb_open: %u random bytes from"
- " /dev/egd-pool", r-1);
/* Copy at least some bytes. */
memcpy(&ret, reply+1, r - 1);
if (reply[0] == sizeof(uint64_t)
/* Fallback: pid and time. */
gettimeofday(&now, NULL);
ret = getpid() * 100132289ULL + now.tv_sec * 1000000ULL + now.tv_usec;
- tdb_logerr(tdb, TDB_SUCCESS, TDB_DEBUG_TRACE,
+ tdb_logerr(tdb, TDB_SUCCESS, TDB_LOG_WARNING,
"tdb_open: random from getpid and time");
return ret;
}
/* We make it up in memory, then write it out if not internal */
struct new_database newdb;
unsigned int magic_len;
+ ssize_t rlen;
/* Fill in the header */
newdb.hdr.version = TDB_VERSION;
tdb->map_size = sizeof(newdb);
tdb->map_ptr = malloc(tdb->map_size);
if (!tdb->map_ptr) {
- tdb_logerr(tdb, TDB_ERR_OOM, TDB_DEBUG_FATAL,
+ tdb_logerr(tdb, TDB_ERR_OOM, TDB_LOG_ERROR,
"tdb_new_database: failed to allocate");
return -1;
}
if (ftruncate(tdb->fd, 0) == -1)
return -1;
- if (!tdb_pwrite_all(tdb->fd, &newdb, sizeof(newdb), 0)) {
- tdb_logerr(tdb, TDB_ERR_IO, TDB_DEBUG_FATAL,
- "tdb_new_database: failed to write: %s",
- strerror(errno));
+ rlen = write(tdb->fd, &newdb, sizeof(newdb));
+ if (rlen != sizeof(newdb)) {
+ if (rlen >= 0)
+ errno = ENOSPC;
+ tdb_logerr(tdb, TDB_ERR_IO, TDB_LOG_ERROR,
+ "tdb_new_database: %zi writing header: %s",
+ rlen, strerror(errno));
return -1;
}
return 0;
int saved_errno = 0;
uint64_t hash_test;
unsigned v;
+ ssize_t rlen;
struct tdb_header hdr;
struct tdb_attribute_seed *seed = NULL;
tdb->stats->size = sizeof(attr->stats);
break;
default:
- tdb_logerr(tdb, TDB_ERR_EINVAL, TDB_DEBUG_ERROR,
+ tdb_logerr(tdb, TDB_ERR_EINVAL, TDB_LOG_USE_ERROR,
"tdb_open: unknown attribute type %u",
attr->base.attr);
goto fail;
}
if ((open_flags & O_ACCMODE) == O_WRONLY) {
- tdb_logerr(tdb, TDB_ERR_EINVAL, TDB_DEBUG_ERROR,
+ tdb_logerr(tdb, TDB_ERR_EINVAL, TDB_LOG_USE_ERROR,
"tdb_open: can't open tdb %s write-only", name);
goto fail;
}
if ((tdb->fd = open(name, open_flags, mode)) == -1) {
/* errno set by open(2) */
saved_errno = errno;
- tdb_logerr(tdb, TDB_ERR_IO, TDB_DEBUG_ERROR,
+ tdb_logerr(tdb, TDB_ERR_IO, TDB_LOG_ERROR,
"tdb_open: could not open file %s: %s",
name, strerror(errno));
goto fail;
goto fail;
}
- if (!tdb_pread_all(tdb->fd, &hdr, sizeof(hdr), 0)
- || strcmp(hdr.magic_food, TDB_MAGIC_FOOD) != 0) {
- if (!(open_flags & O_CREAT)) {
- tdb_logerr(tdb, TDB_ERR_IO, TDB_DEBUG_ERROR,
- "tdb_open: %s is not a tdb file", name);
- goto fail;
- }
+ /* If they used O_TRUNC, read will return 0. */
+ rlen = read(tdb->fd, &hdr, sizeof(hdr));
+ if (rlen == 0 && (open_flags & O_CREAT)) {
if (tdb_new_database(tdb, seed, &hdr) == -1) {
goto fail;
}
- } else if (hdr.version != TDB_VERSION) {
+ } else if (rlen < 0) {
+ tdb_logerr(tdb, TDB_ERR_IO, TDB_LOG_ERROR,
+ "tdb_open: error %s reading %s",
+ strerror(errno), name);
+ goto fail;
+ } else if (rlen < sizeof(hdr)
+ || strcmp(hdr.magic_food, TDB_MAGIC_FOOD) != 0) {
+ tdb_logerr(tdb, TDB_ERR_IO, TDB_LOG_ERROR,
+ "tdb_open: %s is not a tdb file", name);
+ goto fail;
+ }
+
+ if (hdr.version != TDB_VERSION) {
if (hdr.version == bswap_64(TDB_VERSION))
tdb->flags |= TDB_CONVERT;
else {
/* wrong version */
- tdb_logerr(tdb, TDB_ERR_IO, TDB_DEBUG_ERROR,
+ tdb_logerr(tdb, TDB_ERR_IO, TDB_LOG_ERROR,
"tdb_open: %s is unknown version 0x%llx",
name, (long long)hdr.version);
goto fail;
hash_test = tdb_hash(tdb, &hash_test, sizeof(hash_test));
if (hdr.hash_test != hash_test) {
/* wrong hash variant */
- tdb_logerr(tdb, TDB_ERR_IO, TDB_DEBUG_ERROR,
+ tdb_logerr(tdb, TDB_ERR_IO, TDB_LOG_ERROR,
"tdb_open: %s uses a different hash function",
name);
goto fail;
if (fstat(tdb->fd, &st) == -1) {
saved_errno = errno;
- tdb_logerr(tdb, TDB_ERR_IO, TDB_DEBUG_ERROR,
+ tdb_logerr(tdb, TDB_ERR_IO, TDB_LOG_ERROR,
"tdb_open: could not stat open %s: %s",
name, strerror(errno));
goto fail;
/* Is it already in the open list? If so, fail. */
if (tdb_already_open(st.st_dev, st.st_ino)) {
/* FIXME */
- tdb_logerr(tdb, TDB_ERR_NESTING, TDB_DEBUG_ERROR,
+ tdb_logerr(tdb, TDB_ERR_NESTING, TDB_LOG_USE_ERROR,
"tdb_open: %s (%d,%d) is already open in this"
" process",
name, (int)st.st_dev, (int)st.st_ino);
tdb->name = strdup(name);
if (!tdb->name) {
- tdb_logerr(tdb, TDB_ERR_OOM, TDB_DEBUG_ERROR,
+ tdb_logerr(tdb, TDB_ERR_OOM, TDB_LOG_ERROR,
"tdb_open: failed to allocate name");
goto fail;
}
} else
tdb_munmap(tdb);
}
+ free(tdb->lockrecs);
free((char *)tdb->name);
if (tdb->fd != -1)
if (close(tdb->fd) != 0)
- tdb_logerr(tdb, TDB_ERR_IO, TDB_DEBUG_ERROR,
+ tdb_logerr(tdb, TDB_ERR_IO, TDB_LOG_ERROR,
"tdb_open: failed to close tdb->fd"
- " on error!");
+ " on error: %s", strerror(errno));
free(tdb);
errno = saved_errno;
return NULL;
}
new_off += sizeof(struct tdb_used_record);
- if (tdb->methods->write(tdb, new_off, key.dptr, key.dsize) == -1)
+ if (tdb->methods->twrite(tdb, new_off, key.dptr, key.dsize) == -1)
return -1;
new_off += key.dsize;
- if (tdb->methods->write(tdb, new_off, dbuf.dptr, dbuf.dsize) == -1)
+ if (tdb->methods->twrite(tdb, new_off, dbuf.dptr, dbuf.dsize) == -1)
return -1;
/* FIXME: tdb_increment_seqnum(tdb); */
key.dsize, dbuf.dsize,
&rec, h.h))
goto fail;
- if (tdb->methods->write(tdb, off + sizeof(rec)
- + key.dsize,
- dbuf.dptr, dbuf.dsize))
+ if (tdb->methods->twrite(tdb, off + sizeof(rec)
+ + key.dsize,
+ dbuf.dptr, dbuf.dsize))
goto fail;
tdb_unlock_hashes(tdb, h.hlock_start,
h.hlock_range, F_WRLCK);
goto fail;
off += sizeof(rec) + key.dsize + old_dlen;
- if (tdb->methods->write(tdb, off, dbuf.dptr,
- dbuf.dsize) == -1)
+ if (tdb->methods->twrite(tdb, off, dbuf.dptr,
+ dbuf.dsize) == -1)
goto fail;
/* FIXME: tdb_increment_seqnum(tdb); */
/* Slow path. */
newdata = malloc(key.dsize + old_dlen + dbuf.dsize);
if (!newdata) {
- tdb_logerr(tdb, TDB_ERR_OOM, TDB_DEBUG_FATAL,
+ tdb_logerr(tdb, TDB_ERR_OOM, TDB_LOG_ERROR,
"tdb_append: failed to allocate %zu bytes",
(size_t)(key.dsize+old_dlen+dbuf.dsize));
goto fail;
}
- if (tdb->methods->read(tdb, off + sizeof(rec) + key.dsize,
- newdata, old_dlen) != 0) {
+ if (tdb->methods->tread(tdb, off + sizeof(rec) + key.dsize,
+ newdata, old_dlen) != 0) {
free(newdata);
goto fail;
}
void COLD tdb_logerr(struct tdb_context *tdb,
enum TDB_ERROR ecode,
- enum tdb_debug_level level,
+ enum tdb_log_level level,
const char *fmt, ...)
{
char *message;
message = malloc(len + 1);
if (!message) {
- tdb->logfn(tdb, level, tdb->log_private,
- "out of memory formatting message");
+ tdb->logfn(tdb, TDB_LOG_ERROR, tdb->log_private,
+ "out of memory formatting message:");
+ tdb->logfn(tdb, level, tdb->log_private, fmt);
return;
}
va_start(ap, fmt);
projects / ccan / blobdiff