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+ Sun, 6 Jan 2013 00:11:56 +0200 (EET)\r
+From: Tomi Ollila <tomi.ollila@iki.fi>\r
+To: david@tethera.net, notmuch@notmuchmail.org\r
+Subject: Re: [PATCH 2/2] notmuch-restore: handle empty input file,\r
+ leading blank lines and comments.\r
+In-Reply-To: <1356550593-21683-2-git-send-email-david@tethera.net>\r
+References: <1356550593-21683-1-git-send-email-david@tethera.net>\r
+ <1356550593-21683-2-git-send-email-david@tethera.net>\r
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+Date: Sun, 06 Jan 2013 00:11:56 +0200\r
+Message-ID: <m2wqvri8k3.fsf@guru.guru-group.fi>\r
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+Content-Type: text/plain\r
+Cc: David Bremner <bremner@debian.org>\r
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+\r
+On Wed, Dec 26 2012, david@tethera.net wrote:\r
+\r
+> From: David Bremner <bremner@debian.org>\r
+>\r
+> This patch corrects several undesirable behaviours:\r
+>\r
+> 1) Empty files were not detected, leading to buffer read overrun.\r
+>\r
+> 2) An initial blank line cause restore to silently abort\r
+>\r
+> 3) Initial comment line caused format detection to fail\r
+> ---\r
+> notmuch-restore.c | 17 ++++++++++++-----\r
+> test/dump-restore | 3 ---\r
+> 2 files changed, 12 insertions(+), 8 deletions(-)\r
+>\r
+> diff --git a/notmuch-restore.c b/notmuch-restore.c\r
+> index 9ed9b51..c93f1ac 100644\r
+> --- a/notmuch-restore.c\r
+> +++ b/notmuch-restore.c\r
+> @@ -180,11 +180,6 @@ notmuch_restore_command (unused (void *ctx), int argc, char *argv[])\r
+> argv[opt_index]);\r
+> return 1;\r
+> }\r
+> - char *p;\r
+> -\r
+> - line_len = getline (&line, &line_size, input);\r
+> - if (line_len == 0)\r
+> - return 0;\r
+> \r
+> tag_ops = tag_op_list_create (ctx);\r
+> if (tag_ops == NULL) {\r
+> @@ -192,6 +187,18 @@ notmuch_restore_command (unused (void *ctx), int argc, char *argv[])\r
+> return 1;\r
+> }\r
+> \r
+> + do {\r
+> + line_len = getline (&line, &line_size, input);\r
+> +\r
+> + /* empty input file not considered an error */\r
+> + if (line_len < 0)\r
+> + return 0;\r
+> +\r
+> + } while ((line_len == 0) ||\r
+> + (line[0] == '#') ||\r
+> + (strspn (line, " \t\n") == strlen (line)));\r
+\r
+The strspn -- strlen doesn't take embedded \0:s in input line\r
+into consideration (and strlen() scans the full line again),\r
+\r
+ (strspn (line, " \t\n") == line_len));\r
+\r
+might better\r
+\r
+(if not, then line[strspn(line, " \t\n")] == '\0' would drop length scan)\r
+\r
+Otherwise LGTM.\r
+\r
+Tomi\r
+\r
+> +\r
+> + char *p;\r
+> for (p = line; (input_format == DUMP_FORMAT_AUTO) && *p; p++) {\r
+> if (*p == '(')\r
+> input_format = DUMP_FORMAT_SUP;\r
+> diff --git a/test/dump-restore b/test/dump-restore\r
+> index c2ddb92..ae30cd1 100755\r
+> --- a/test/dump-restore\r
+> +++ b/test/dump-restore\r
+> @@ -146,13 +146,11 @@ cat <<EOF > comments-and-blanks\r
+> EOF\r
+> \r
+> test_begin_subtest 'restoring empty file is not an error'\r
+> -test_subtest_known_broken\r
+> notmuch restore < /dev/null 2>OUTPUT.$test_count\r
+> cp /dev/null EXPECTED\r
+> test_expect_equal_file EXPECTED OUTPUT.$test_count\r
+> \r
+> test_begin_subtest 'file of comments and blank lines is not an error'\r
+> -test_subtest_known_broken\r
+> notmuch restore --input=comments-and-blanks\r
+> ret_val=$?\r
+> test_expect_equal "$ret_val" "0"\r
+> @@ -172,7 +170,6 @@ echo "yun1vjwegii.fsf@aiko.keithp.com (another_tag)" \\r
+> >> leading-comments-blanks-sup\r
+> \r
+> test_begin_subtest 'detect format=sup with leading comments and blanks'\r
+> -test_subtest_known_broken\r
+> notmuch restore --input=leading-comments-blanks-sup\r
+> notmuch search --output=tags id:yun1vjwegii.fsf@aiko.keithp.com > OUTPUT.$test_count\r
+> echo "another_tag" > EXPECTED\r
+> -- \r
+> 1.7.10.4\r
+>\r
+> _______________________________________________\r
+> notmuch mailing list\r
+> notmuch@notmuchmail.org\r
+> http://notmuchmail.org/mailman/listinfo/notmuch\r
projects / notmuch-archives.git / commitdiff