notmuch-restore: allocate a temporary talloc context for each line parsed.

This lets the high level code in notmuch restore be ignorant about
what the lower level code is doing as far as allocating memory.

1 files changed, 11 insertions, 3 deletions

diff --git a/notmuch-restore.c b/notmuch-restore.c
index ac913754..9ed9b515 100644
--- a/notmuch-restore.c
+++ b/notmuch-restore.c
@@ -125,6 +125,7 @@ notmuch_restore_command (unused (void *ctx), int argc, char *argv[])
     char *input_file_name = NULL;
     FILE *input = stdin;
     char *line = NULL;
+    void *line_ctx = NULL;
     size_t line_size;
     ssize_t line_len;
 
@@ -208,10 +209,14 @@ notmuch_restore_command (unused (void *ctx), int argc, char *argv[])
     do {
 	char *query_string;
 
+	if (line_ctx != NULL)
+	    talloc_free (line_ctx);
+
+	line_ctx = talloc_new (ctx);
 	if (input_format == DUMP_FORMAT_SUP) {
-	    ret = parse_sup_line (ctx, line, &query_string, tag_ops);
+	    ret = parse_sup_line (line_ctx, line, &query_string, tag_ops);
 	} else {
-	    ret = parse_tag_line (ctx, line, TAG_FLAG_BE_GENEROUS,
+	    ret = parse_tag_line (line_ctx, line, TAG_FLAG_BE_GENEROUS,
 				  &query_string, tag_ops);
 
 	    if (ret == 0) {
@@ -237,13 +242,16 @@ notmuch_restore_command (unused (void *ctx), int argc, char *argv[])
 	if (ret < 0)
 	    break;
 
-	ret = tag_message (ctx, notmuch, query_string,
+	ret = tag_message (line_ctx, notmuch, query_string,
 			   tag_ops, flags);
 	if (ret)
 	    break;
 
     }  while ((line_len = getline (&line, &line_size, input)) != -1);
 
+    if (line_ctx != NULL)
+	talloc_free (line_ctx);
+
     if (input_format == DUMP_FORMAT_SUP)
 	regfree (&regex);