X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fjournal%2Fjournal-file.c;h=f2f1f35fc3b64f4c9d7a6afb379654740ff4ecde;hp=275324b672e554be629af524f3175de73d2671b6;hb=03e334a1c7dc8c20c38902aa039440763acc9b17;hpb=af13a6b0606f166c93cafc9892343f167f880281

diff --git a/src/journal/journal-file.c b/src/journal/journal-file.c
index 275324b67..f2f1f35fc 100644
--- a/src/journal/journal-file.c
+++ b/src/journal/journal-file.c
@@ -133,9 +133,7 @@ void journal_file_close(JournalFile *f) {
         if (f->header)
                 munmap(f->header, PAGE_ALIGN(sizeof(Header)));
 
-        if (f->fd >= 0)
-                close_nointr_nofail(f->fd);
-
+        safe_close(f->fd);
         free(f->path);
 
         if (f->mmap)
@@ -419,7 +417,6 @@ int journal_file_move_to_object(JournalFile *f, int type, uint64_t offset, Objec
         void *t;
         Object *o;
         uint64_t s;
-        unsigned context;
 
         assert(f);
         assert(ret);
@@ -428,10 +425,8 @@ int journal_file_move_to_object(JournalFile *f, int type, uint64_t offset, Objec
         if (!VALID64(offset))
                 return -EFAULT;
 
-        /* One context for each type, plus one catch-all for the rest */
-        context = type > 0 && type < _OBJECT_TYPE_MAX ? type : 0;
 
-        r = journal_file_move_to(f, context, false, offset, sizeof(ObjectHeader), &t);
+        r = journal_file_move_to(f, type_to_context(type), false, offset, sizeof(ObjectHeader), &t);
         if (r < 0)
                 return r;
 
@@ -563,7 +558,7 @@ static int journal_file_setup_data_hash_table(JournalFile *f) {
         if (r < 0)
                 return r;
 
-        memset(o->hash_table.items, 0, s);
+        memzero(o->hash_table.items, s);
 
         f->header->data_hash_table_offset = htole64(p + offsetof(Object, hash_table.items));
         f->header->data_hash_table_size = htole64(s);
@@ -589,7 +584,7 @@ static int journal_file_setup_field_hash_table(JournalFile *f) {
         if (r < 0)
                 return r;
 
-        memset(o->hash_table.items, 0, s);
+        memzero(o->hash_table.items, s);
 
         f->header->field_hash_table_offset = htole64(p + offsetof(Object, hash_table.items));
         f->header->field_hash_table_size = htole64(s);
@@ -1015,8 +1010,8 @@ static int journal_file_append_data(
         else
                 eq = memchr(data, '=', size);
         if (eq && eq > data) {
+                Object *fo = NULL;
                 uint64_t fp;
-                Object *fo;
 
                 /* Create field object ... */
                 r = journal_file_append_field(f, data, (uint8_t*) eq - (uint8_t*) data, &fo, &fp);
@@ -1362,7 +1357,7 @@ int journal_file_append_entry(JournalFile *f, const dual_timestamp *ts, const st
 }
 
 typedef struct ChainCacheItem {
-        uint64_t first; /* the array at the begin of the chain */
+        uint64_t first; /* the array at the beginning of the chain */
         uint64_t array; /* the cached array */
         uint64_t begin; /* the first item in the cached array */
         uint64_t total; /* the total number of items in all arrays before this one in the chain */
@@ -1948,7 +1943,7 @@ int journal_file_next_entry(
                 direction_t direction,
                 Object **ret, uint64_t *offset) {
 
-        uint64_t i, n;
+        uint64_t i, n, ofs;
         int r;
 
         assert(f);
@@ -1989,10 +1984,24 @@ int journal_file_next_entry(
         }
 
         /* And jump to it */
-        return generic_array_get(f,
-                                 le64toh(f->header->entry_array_offset),
-                                 i,
-                                 ret, offset);
+        r = generic_array_get(f,
+                              le64toh(f->header->entry_array_offset),
+                              i,
+                              ret, &ofs);
+        if (r <= 0)
+                return r;
+
+        if (p > 0 &&
+            (direction == DIRECTION_DOWN ? ofs <= p : ofs >= p)) {
+                log_debug("%s: entry array corrupted at entry %"PRIu64,
+                          f->path, i);
+                return -EBADMSG;
+        }
+
+        if (offset)
+                *offset = ofs;
+
+        return 1;
 }
 
 int journal_file_skip_entry(
@@ -2213,8 +2222,6 @@ int journal_file_move_to_entry_by_monotonic_for_data(
 
                 z = q;
         }
-
-        return 0;
 }
 
 int journal_file_move_to_entry_by_seqnum_for_data(