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Handle errors reported by fwrite() in dump_microdescriptor()
Does not deal with error handling in dump_microdescriptor's callers.
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parent
0552deb613
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256861023e
@ -59,7 +59,7 @@ HT_GENERATE(microdesc_map, microdesc_t, node,
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static size_t
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dump_microdescriptor(FILE *f, microdesc_t *md, size_t *annotation_len_out)
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{
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size_t r = 0;
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size_t r = 0, written;
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/* XXXX drops unkown annotations. */
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if (md->last_listed) {
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char buf[ISO_TIME_LEN+1];
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@ -74,7 +74,13 @@ dump_microdescriptor(FILE *f, microdesc_t *md, size_t *annotation_len_out)
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}
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md->off = (off_t) ftell(f);
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fwrite(md->body, 1, md->bodylen, f);
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written = fwrite(md->body, 1, md->bodylen, f);
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if (written != md->bodylen) {
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log_warn(LD_DIR, "Couldn't dump microdescriptor (wrote %lu out of %lu): %s",
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(unsigned long)written, (unsigned long)md->bodylen,
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strerror(ferror(f)));
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return(-1);
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}
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r += md->bodylen;
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return r;
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}
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@ -171,6 +177,11 @@ microdescs_add_list_to_cache(microdesc_cache_t *cache,
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if (f) {
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size_t annotation_len;
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size = dump_microdescriptor(f, md, &annotation_len);
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if (size < 0) {
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/* XXX handle errors from dump_microdescriptor() */
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/* log? return -1? die? coredump the universe? */
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continue;
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}
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md->saved_location = SAVED_IN_JOURNAL;
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cache->journal_len += size;
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} else {
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@ -292,6 +303,11 @@ microdesc_cache_rebuild(microdesc_cache_t *cache)
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continue;
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size = dump_microdescriptor(f, md, &annotation_len);
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if (size < 0) {
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/* XXX handle errors from dump_microdescriptor() */
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/* log? return -1? die? coredump the universe? */
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continue;
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}
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md->off = off + annotation_len;
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off += size;
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if (md->saved_location != SAVED_IN_CACHE) {
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