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backend_chromium: refactor parse_ts()

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We only need to parse a single integer.
There's no chance that a 64-bit integer cannot hold a valid timestamp.
This commit is contained in:
CismonX 2025-03-20 10:11:35 +08:00
parent 00f40beec7
commit d36c070ef2
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GPG key ID: 3094873E29A482FB
1 changed files with 9 additions and 29 deletions
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38
src/backend_chromium.c
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@ -262,7 +262,7 @@ static int parse_mntopts (struct bookmarkfs_conf_opt const *, uint32_t,
struct parsed_mntopts *);
static int parse_stats (struct node_entry const *,
struct bookmarkfs_bookmark_stat *);
static int parse_ts (char const *, size_t, struct timespec *);
static int parse_ts (char const *, struct timespec *);
static void print_help (uint32_t);
static void print_version (void);
static int store_load (struct backend_ctx *);
@ -575,7 +575,7 @@ parse_mkfsopts (
BACKEND_OPT_KEY("date_added") {
BACKEND_OPT_VAL_START
char const *val = BACKEND_OPT_VAL_STR;
if (0 != parse_ts(val, strlen(val), &parsed_opts->btime)) {
if (0 != parse_ts(val, &parsed_opts->btime)) {
return BACKEND_OPT_BAD_VAL();
}
}
@ -1496,8 +1496,7 @@ parse_stats (
if (unlikely(atime == NULL)) {
return -EIO;
}
size_t atime_len = json_string_length(atime_node);
if (unlikely(0 != parse_ts(atime, atime_len, &buf->atime))) {
if (unlikely(0 != parse_ts(atime, &buf->atime))) {
return -EIO;
}
@ -1510,8 +1509,7 @@ parse_stats (
if (unlikely(mtime == NULL)) {
return -EIO;
}
size_t mtime_len = json_string_length(mtime_node);
if (unlikely(0 != parse_ts(mtime, mtime_len, &buf->mtime))) {
if (unlikely(0 != parse_ts(mtime, &buf->mtime))) {
return -EIO;
}
@ -1528,40 +1526,22 @@ parse_stats (
static int
parse_ts (
char const *str,
size_t str_len,
struct timespec *buf
) {
time_t secs = 0;
long microsecs;
char *end;
if (likely(str_len > 6)) {
str_len -= 6;
if (unlikely(str_len > 15)) {
return -1;
}
char tmp[16];
memcpy(tmp, str, str_len);
tmp[str_len] = '\0';
secs = strtoll(tmp, &end, 10);
if (*end != '\0' || secs < 0 || secs == LLONG_MAX) {
return -1;
}
str += str_len;
}
microsecs = strtol(str, &end, 10);
if (*end != '\0' || microsecs < 0 || microsecs == LONG_MAX) {
long long microsecs = strtoll(str, &end, 10);
if (*end != '\0' || microsecs < 0 || microsecs == LLONG_MAX) {
return -1;
}
if (buf != NULL) {
time_t secs = microsecs / 1000000;
if (unlikely(secs < EPOCH_DIFF)) {
// Stay away from negative tv_sec
secs = EPOCH_DIFF;
}
buf->tv_sec = secs - EPOCH_DIFF;
buf->tv_nsec = microsecs * 1000;
buf->tv_nsec = (microsecs % 1000000) * 1000;
}
return 0;
}
@ -2630,7 +2610,7 @@ bookmark_set (
bool nocheck = true;
switch (key_type) {
case BM_XATTR_DATE_ADDED:
if (0 != parse_ts(val, val_len, NULL)) {
if (0 != parse_ts(val, NULL)) {
return -EINVAL;
}
break;