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From: Rohit Ashiwal <rohit.ashiwal265@gmail.com>
To: rohit.ashiwal265@gmail.com
Cc: Johannes.Schindelin@gmx.de, git@vger.kernel.org,
	gitster@pobox.com, martin.agren@gmail.com, newren@gmail.com,
	phillip.wood123@gmail.com, t.gummerer@gmail.com
Subject: [GSoC][PATCH v2 2/6] sequencer: add NULL checks under read_author_script
Date: Tue, 13 Aug 2019 01:12:56 +0530	[thread overview]
Message-ID: <20190812194301.5655-3-rohit.ashiwal265@gmail.com> (raw)
In-Reply-To: <20190812194301.5655-1-rohit.ashiwal265@gmail.com>

read_author_script reads name, email and author date from the author
script. However, it does not check if the arguments are NULL. Adding
NULL checks will allow us to selectively get the required value, for
example:

    char *date;
    if (read_author_script(_path_, NULL, NULL, &date, _int_))
	    die(_("failed to read author date"));
    /* needs to be free()'d */
    return date;

Add NULL checks for better control over the information retrieved.

Signed-off-by: Rohit Ashiwal <rohit.ashiwal265@gmail.com>
---
 sequencer.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/sequencer.c b/sequencer.c
index 34ebf8ed94..30d77c2682 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -824,9 +824,19 @@ int read_author_script(const char *path, char **name, char **email, char **date,
 		error(_("missing 'GIT_AUTHOR_DATE'"));
 	if (date_i < 0 || email_i < 0 || date_i < 0 || err)
 		goto finish;
-	*name = kv.items[name_i].util;
-	*email = kv.items[email_i].util;
-	*date = kv.items[date_i].util;
+
+	if (name)
+		*name = kv.items[name_i].util;
+	else
+		free(kv.items[name_i].util);
+	if (email)
+		*email = kv.items[email_i].util;
+	else
+		free(kv.items[email_i].util);
+	if (date)
+		*date = kv.items[date_i].util;
+	else
+		free(kv.items[date_i].util);
 	retval = 0;
 finish:
 	string_list_clear(&kv, !!retval);
-- 
2.21.0


  parent reply	other threads:[~2019-08-12 19:46 UTC|newest]

Thread overview: 96+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-06 17:36 [GSoC][PATCHl 0/6] rebase -i: support more options Rohit Ashiwal
2019-08-06 17:36 ` [GSoC][PATCHl 1/6] rebase -i: add --ignore-whitespace flag Rohit Ashiwal
2019-08-07  5:38   ` Junio C Hamano
2019-08-07 20:25     ` Rohit Ashiwal
2019-08-08 16:44   ` Phillip Wood
2019-08-12 17:43     ` Rohit Ashiwal
2019-08-06 17:36 ` [GSoC][PATCHl 2/6] sequencer: add NULL checks under read_author_script Rohit Ashiwal
2019-08-06 17:36 ` [GSoC][PATCHl 3/6] rebase -i: support --committer-date-is-author-date Rohit Ashiwal
2019-08-08 11:29   ` Phillip Wood
2019-08-08 16:00     ` Junio C Hamano
2019-08-06 17:36 ` [GSoC][PATCHl 4/6] sequencer: rename amend_author to author_to_rename Rohit Ashiwal
2019-08-08 11:30   ` Phillip Wood
2019-08-06 17:36 ` [GSoC][PATCHl 5/6] rebase -i: support --ignore-date Rohit Ashiwal
2019-08-07 19:41   ` Johannes Schindelin
2019-08-07 20:22     ` Junio C Hamano
2019-08-07 20:33       ` Rohit Ashiwal
2019-08-08 11:42   ` Phillip Wood
2019-08-08 16:53     ` Phillip Wood
2019-08-06 17:36 ` [GSoC][PATCHl 6/6] rebase: add --author-date-is-committer-date Rohit Ashiwal
2019-08-08 11:42   ` Phillip Wood
2019-08-12 19:42 ` [GSoC][PATCH v2 0/6] rebase -i: support more options Rohit Ashiwal
2019-08-12 19:42   ` [GSoC][PATCH v2 1/6] rebase -i: add --ignore-whitespace flag Rohit Ashiwal
2019-08-13 12:07     ` Phillip Wood
2019-08-12 19:42   ` Rohit Ashiwal [this message]
2019-08-12 19:42   ` [GSoC][PATCH v2 3/6] rebase -i: support --committer-date-is-author-date Rohit Ashiwal
2019-08-13 10:38     ` Phillip Wood
2019-08-13 12:09       ` Phillip Wood
2019-08-13 17:06       ` Junio C Hamano
2019-08-14 18:38         ` Phillip Wood
2019-08-13 13:35     ` Phillip Wood
2019-08-12 19:42   ` [GSoC][PATCH v2 4/6] sequencer: rename amend_author to author_to_rename Rohit Ashiwal
2019-08-13 13:29     ` Phillip Wood
2019-08-12 19:42   ` [GSoC][PATCH v2 5/6] rebase -i: support --ignore-date Rohit Ashiwal
2019-08-13 13:28     ` Phillip Wood
2019-08-13 17:21       ` Junio C Hamano
2019-08-14 18:47         ` Phillip Wood
2019-08-13 21:45     ` Junio C Hamano
2019-08-14 18:51       ` Phillip Wood
2019-08-14 19:33         ` Junio C Hamano
2019-08-17  9:28           ` Phillip Wood
2019-08-12 19:43   ` [GSoC][PATCH v2 6/6] rebase: add --author-date-is-committer-date Rohit Ashiwal
2019-08-13 17:28     ` Junio C Hamano
2019-08-20  3:45 ` [PATCH v3 0/6] rebase -i: support more options Rohit Ashiwal
2019-08-20  3:45   ` [PATCH v3 1/6] rebase -i: add --ignore-whitespace flag Rohit Ashiwal
2019-08-20 18:40     ` Phillip Wood
2019-08-20 18:47       ` Rohit Ashiwal
2019-08-20  3:45   ` [PATCH v3 2/6] sequencer: add NULL checks under read_author_script Rohit Ashiwal
2019-08-23 15:20     ` Junio C Hamano
2019-08-20  3:45   ` [PATCH v3 3/6] rebase -i: support --committer-date-is-author-date Rohit Ashiwal
2019-08-20 13:32     ` Phillip Wood
2019-08-20  3:45   ` [PATCH v3 4/6] sequencer: rename amend_author to author_to_rename Rohit Ashiwal
2019-08-20  3:45   ` [PATCH v3 5/6] rebase -i: support --ignore-date Rohit Ashiwal
2019-08-20 13:45     ` Phillip Wood
2019-08-20 17:42     ` Junio C Hamano
2019-08-20 18:30       ` Phillip Wood
2019-08-20  3:45   ` [GSoC][PATCH v2 6/6] rebase: add --author-date-is-committer-date Rohit Ashiwal
2019-08-20  4:00     ` Rohit Ashiwal
2019-08-20  3:45   ` [PATCH v3 6/6] rebase: add --reset-author-date Rohit Ashiwal
2019-08-20  3:54   ` [PATCH v3 0/6] rebase -i: support more options Rohit Ashiwal
2019-08-20 13:56   ` Phillip Wood
2019-08-20 17:53     ` Junio C Hamano
2019-08-20 18:37       ` Phillip Wood
2019-09-07 11:50 ` [PATCH v4 " Rohit Ashiwal
2019-09-07 11:50   ` [PATCH v4 1/6] rebase -i: add --ignore-whitespace flag Rohit Ashiwal
2019-10-04  9:29     ` Phillip Wood
2019-10-05 18:12       ` Elijah Newren
2019-10-06 17:57       ` Rohit Ashiwal
2019-09-07 11:50   ` [PATCH v4 2/6] sequencer: allow callers of read_author_script() to ignore fields Rohit Ashiwal
2019-09-07 11:50   ` [PATCH v4 3/6] rebase -i: support --committer-date-is-author-date Rohit Ashiwal
2019-10-04  9:37     ` Phillip Wood
2019-10-06 17:57       ` Rohit Ashiwal
2019-10-24 13:28     ` Phillip Wood
2019-09-07 11:50   ` [PATCH v4 4/6] sequencer: rename amend_author to author_to_rename Rohit Ashiwal
2019-09-07 11:50   ` [PATCH v4 5/6] rebase -i: support --ignore-date Rohit Ashiwal
2019-09-07 20:56     ` Rohit Ashiwal
2019-09-27 10:00     ` Phillip Wood
2019-10-06 17:57       ` Rohit Ashiwal
2019-10-24 20:36         ` Phillip Wood
2019-09-07 11:50   ` [PATCH v4 6/6] rebase: add --reset-author-date Rohit Ashiwal
2019-09-09 18:02   ` [PATCH v4 0/6] rebase -i: support more options Junio C Hamano
2019-09-09 18:51     ` Phillip Wood
2019-09-09 19:24       ` Junio C Hamano
2019-11-01 13:59 ` [PATCH v5 " Rohit Ashiwal
2019-11-01 13:59   ` [PATCH v5 1/6] rebase -i: add --ignore-whitespace flag Rohit Ashiwal
2019-11-01 13:59   ` [PATCH v5 2/6] sequencer: allow callers of read_author_script() to ignore fields Rohit Ashiwal
2019-11-01 14:00   ` [PATCH v5 3/6] rebase -i: support --committer-date-is-author-date Rohit Ashiwal
2019-11-01 14:00   ` [PATCH v5 4/6] sequencer: rename amend_author to author_to_rename Rohit Ashiwal
2019-11-01 14:00   ` [PATCH v5 5/6] rebase -i: support --ignore-date Rohit Ashiwal
2019-11-02  7:32     ` Junio C Hamano
2019-11-02  7:48       ` Junio C Hamano
2019-11-01 14:00   ` [PATCH v5 6/6] rebase: add --reset-author-date Rohit Ashiwal
2019-11-02  7:34     ` Junio C Hamano
2019-11-21  6:14   ` [PATCH v5 0/6] rebase -i: support more options Junio C Hamano
2019-11-21  8:17     ` Alban Gruin
2019-11-22  6:32       ` Junio C Hamano
2019-11-28 11:14   ` Phillip Wood

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