Coverity fixes

Signed-off-by: Felipe Contreras <felipe.contreras@nokia.com>

src/libFLAC/md5.c

@@ -259,7 +259,7 @@ void FLAC__MD5Final(FLAC__byte digest[16], FLAC__MD5Context *ctx)
 
 	byteSwap(ctx->buf, 4);
 	memcpy(digest, ctx->buf, 16);
-	memset(ctx, 0, sizeof(ctx));	/* In case it's sensitive */
+	memset(ctx, 0, sizeof(*ctx));	/* In case it's sensitive */
 	if(0 != ctx->internal_buf) {
 		free(ctx->internal_buf);
 		ctx->internal_buf = 0;
@@ -408,7 +408,8 @@ FLAC__bool FLAC__MD5Accumulate(FLAC__MD5Context *ctx, const FLAC__int32 * const
 			if(0 == (ctx->internal_buf = (FLAC__byte*)safe_malloc_(bytes_needed)))
 				return false;
 		}
-		ctx->internal_buf = tmp;
+		else
+			ctx->internal_buf = tmp;
 		ctx->capacity = bytes_needed;
 	}
 

src/libFLAC/metadata_iterators.c

@@ -1217,6 +1217,7 @@ static FLAC__bool chain_read_cb_(FLAC__Metadata_Chain *chain, FLAC__IOHandle han
 			}
 
 			if(!read_metadata_block_header_cb_(handle, read_cb, &is_last, &type, &length)) {
+				node_delete_(node);
 				chain->status = FLAC__METADATA_CHAIN_STATUS_READ_ERROR;
 				return false;
 			}
@@ -1411,38 +1412,34 @@ static FLAC__bool chain_rewrite_file_(FLAC__Metadata_Chain *chain, const char *t
 	}
 	if(!open_tempfile_(chain->filename, tempfile_path_prefix, &tempfile, &tempfilename, &status)) {
 		chain->status = get_equivalent_status_(status);
-		cleanup_tempfile_(&tempfile, &tempfilename);
-		return false;
+		goto err;
 	}
 	if(!copy_n_bytes_from_file_(f, tempfile, chain->first_offset, &status)) {
 		chain->status = get_equivalent_status_(status);
-		cleanup_tempfile_(&tempfile, &tempfilename);
-		return false;
+		goto err;
 	}
 
 	/* write the metadata */
 	for(node = chain->head; node; node = node->next) {
 		if(!write_metadata_block_header_(tempfile, &status, node->data)) {
 			chain->status = get_equivalent_status_(status);
-			return false;
+			goto err;
 		}
 		if(!write_metadata_block_data_(tempfile, &status, node->data)) {
 			chain->status = get_equivalent_status_(status);
-			return false;
+			goto err;
 		}
 	}
 	/*FLAC__ASSERT(fflush(), ftello() == chain->last_offset);*/
 
 	/* copy the file postfix (everything after the metadata) */
 	if(0 != fseeko(f, chain->last_offset, SEEK_SET)) {
-		cleanup_tempfile_(&tempfile, &tempfilename);
 		chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
-		return false;
+		goto err;
 	}
 	if(!copy_remaining_bytes_from_file_(f, tempfile, &status)) {
-		cleanup_tempfile_(&tempfile, &tempfilename);
 		chain->status = get_equivalent_status_(status);
-		return false;
+		goto err;
 	}
 
 	/* move the tempfile on top of the original */
@@ -1451,6 +1448,11 @@ static FLAC__bool chain_rewrite_file_(FLAC__Metadata_Chain *chain, const char *t
 		return false;
 
 	return true;
+
+err:
+	(void)fclose(f);
+	cleanup_tempfile_(&tempfile, &tempfilename);
+	return false;
 }
 
 /* assumes 'handle' is already at beginning of file */

src/share/grabbag/picture.c

@@ -287,8 +287,10 @@ FLAC__StreamMetadata *grabbag__picture_parse_specification(const char *spec, con
 
 	*error_message = 0;
 
-	if(0 == (obj = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PICTURE)))
+	if(0 == (obj = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PICTURE))) {
 		*error_message = error_messages[0];
+		return obj;
+	}
 
 	if(strchr(spec, '|')) { /* full format */
 		const char *p;
@@ -363,8 +365,10 @@ FLAC__StreamMetadata *grabbag__picture_parse_specification(const char *spec, con
 						*error_message = error_messages[0];
 					else {
 						FILE *f = fopen(spec, "rb");
-						if(0 == f)
+						if(0 == f) {
 							*error_message = error_messages[5];
+							free(buffer);
+						}
 						else {
 							if(fread(buffer, 1, size, f) != (size_t)size)
 								*error_message = error_messages[6];
@@ -379,6 +383,9 @@ FLAC__StreamMetadata *grabbag__picture_parse_specification(const char *spec, con
 								else if((obj->data.picture.width == 0 || obj->data.picture.height == 0 || obj->data.picture.depth == 0) && !local__extract_resolution_color_info_(&obj->data.picture))
 									*error_message = error_messages[4];
 							}
+							else {
+								free(buffer);
+							}
 						}
 					}
 				}

src/share/grabbag/replaygain.c

@@ -505,8 +505,10 @@ static const char *store_to_file_post_(const char *filename, FLAC__Metadata_Chai
 
 	FLAC__metadata_chain_sort_padding(chain);
 	if(!FLAC__metadata_chain_write(chain, /*use_padding=*/true, preserve_modtime)) {
+		const char *error;
+		error = FLAC__Metadata_ChainStatusString[FLAC__metadata_chain_status(chain)];
 		FLAC__metadata_chain_delete(chain);
-		return FLAC__Metadata_ChainStatusString[FLAC__metadata_chain_status(chain)];
+		return error;
 	}
 
 	FLAC__metadata_chain_delete(chain);