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journal: extend catalog header to 64bit for all fields, just to be safe and follow the rest of the file formats

This commit is contained in:
Lennart Poettering 2012-11-16 01:34:53 +01:00
parent 0049f05a8b
commit 83f6936a01
2 changed files with 22 additions and 22 deletions
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42
src/journal/catalog.c
View File

@ -50,14 +50,15 @@ typedef struct CatalogHeader {
uint8_t signature[8]; /* "RHHHKSLP" */
le32_t compatible_flags;
le32_t incompatible_flags;
le32_t header_size;
le32_t n_items;
le64_t header_size;
le64_t n_items;
le64_t catalog_item_size;
} CatalogHeader;
typedef struct CatalogItem {
sd_id128_t id;
char language[32];
le32_t offset;
le64_t offset;
} CatalogItem;
static unsigned catalog_hash_func(const void *p) {
@ -117,18 +118,13 @@ static int finish_item(
if (offset < 0)
return log_oom();
if (offset > 0xFFFFFFFF) {
log_error("Too many catalog entries.");
return -E2BIG;
}
i = new0(CatalogItem, 1);
if (!i)
return log_oom();
i->id = id;
strncpy(i->language, language, sizeof(i->language));
i->offset = htole32((uint32_t) offset);
i->offset = htole64((uint64_t) offset);
r = hashmap_put(h, i, i);
if (r == EEXIST) {
@ -342,8 +338,9 @@ int catalog_update(void) {
zero(header);
memcpy(header.signature, CATALOG_SIGNATURE, sizeof(header.signature));
header.header_size = htole32(ALIGN_TO(sizeof(CatalogHeader), 8));
header.n_items = htole32(hashmap_size(h));
header.header_size = htole64(ALIGN_TO(sizeof(CatalogHeader), 8));
header.catalog_item_size = htole64(sizeof(CatalogItem));
header.n_items = htole64(hashmap_size(h));
k = fwrite(&header, 1, sizeof(header), w);
if (k != sizeof(header)) {
@ -427,10 +424,11 @@ static int open_mmap(int *_fd, struct stat *_st, void **_p) {
h = p;
if (memcmp(h->signature, CATALOG_SIGNATURE, sizeof(h->signature)) != 0 ||
le32toh(h->header_size) < sizeof(CatalogHeader) ||
le64toh(h->header_size) < sizeof(CatalogHeader) ||
le64toh(h->catalog_item_size) < sizeof(CatalogItem) ||
h->incompatible_flags != 0 ||
le32toh(h->n_items) <= 0 ||
st.st_size < (off_t) (le32toh(h->header_size) + sizeof(CatalogItem) * le32toh(h->n_items))) {
le64toh(h->n_items) <= 0 ||
st.st_size < (off_t) (le64toh(h->header_size) + le64toh(h->catalog_item_size) * le64toh(h->n_items))) {
close_nointr_nofail(fd);
munmap(p, st.st_size);
return -EBADMSG;
@ -456,30 +454,30 @@ static const char *find_id(void *p, sd_id128_t id) {
strncpy(key.language, loc, sizeof(key.language));
key.language[strcspn(key.language, ".@")] = 0;
f = bsearch(&key, (const uint8_t*) p + le32toh(h->header_size), le32toh(h->n_items), sizeof(CatalogItem), catalog_compare_func);
f = bsearch(&key, (const uint8_t*) p + le64toh(h->header_size), le64toh(h->n_items), le64toh(h->catalog_item_size), catalog_compare_func);
if (!f) {
char *e;
e = strchr(key.language, '_');
if (e) {
*e = 0;
f = bsearch(&key, (const uint8_t*) p + le32toh(h->header_size), le32toh(h->n_items), sizeof(CatalogItem), catalog_compare_func);
f = bsearch(&key, (const uint8_t*) p + le64toh(h->header_size), le64toh(h->n_items), le64toh(h->catalog_item_size), catalog_compare_func);
}
}
}
if (!f) {
zero(key.language);
f = bsearch(&key, (const uint8_t*) p + le32toh(h->header_size), le32toh(h->n_items), sizeof(CatalogItem), catalog_compare_func);
f = bsearch(&key, (const uint8_t*) p + le64toh(h->header_size), le64toh(h->n_items), le64toh(h->catalog_item_size), catalog_compare_func);
}
if (!f)
return NULL;
return (const char*) p +
le32toh(h->header_size) +
le32toh(h->n_items) * sizeof(CatalogItem) +
le32toh(f->offset);
le64toh(h->header_size) +
le64toh(h->n_items) * le64toh(h->catalog_item_size) +
le64toh(f->offset);
}
int catalog_get(sd_id128_t id, char **_text) {
@ -558,9 +556,9 @@ int catalog_list(FILE *f) {
return r;
h = p;
items = (const CatalogItem*) ((const uint8_t*) p + le32toh(h->header_size));
items = (const CatalogItem*) ((const uint8_t*) p + le64toh(h->header_size));
for (n = 0; n < le32toh(h->n_items); n++) {
for (n = 0; n < le64toh(h->n_items); n++) {
const char *s;
_cleanup_free_ char *subject = NULL, *defined_by = NULL;

2
src/journal/journalctl.c
View File

@ -867,6 +867,8 @@ int main(int argc, char *argv[]) {
if (arg_action == ACTION_LIST_CATALOG) {
r = catalog_list(stdout);
if (r < 0)
log_error("Failed to list catalog: %s", strerror(-r));
goto finish;
}