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From: Rohit Ashiwal <rohit.ashiwal265@gmail.com>
To: Rohit <rohit.ashiwal265@gmail.com>
Cc: Dscho <Johannes.Schindelin@gmx.de>,
	Git Mailing List <git@vger.kernel.org>, Junio <gitster@pobox.com>,
	Martin <martin.agren@gmail.com>,
	Phillip <phillip.wood123@gmail.com>,
	Thomas <t.gummerer@gmail.com>, Elijah <newren@gmail.com>
Subject: [GSoC][PATCH v2 1/2] sequencer: add NULL checks under read_author_script
Date: Fri, 19 Jul 2019 00:33:13 +0530
Message-ID: <20190718190314.20549-2-rohit.ashiwal265@gmail.com> (raw)
In-Reply-To: <20190718190314.20549-1-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 f88a97fb10..a2d7b0925e 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -821,9 +821,19 @@ 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


  reply	other threads:[~2019-07-18 19:06 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-12 18:50 [GSoC][PATCH 0/1] rebase -i: support --ignore-whitespace Rohit Ashiwal
2019-07-12 18:50 ` [GSoC][PATCH 1/1] rebase -i: add --ignore-whitespace flag Rohit Ashiwal
2019-07-15 17:57   ` Junio C Hamano
2019-07-15 22:00     ` Rohit Ashiwal
2019-07-15 22:08       ` Junio C Hamano
2019-07-15 22:42         ` Rohit Ashiwal
2019-07-12 18:53 ` [GSoC][PATCH 0/2] rebase -i: support --committer-date-is-author-date Rohit Ashiwal
2019-07-18 19:03   ` [GSoC][PATCH v2 " Rohit Ashiwal
2019-07-18 19:03     ` Rohit Ashiwal [this message]
2019-07-18 19:03     ` [GSoC][PATCH v2 2/2] " Rohit Ashiwal
2019-07-19 22:36       ` Junio C Hamano
2019-08-02 20:57         ` Rohit Ashiwal
2019-07-20 14:56       ` Phillip Wood
2019-07-23 19:57         ` Rohit Ashiwal
2019-07-24 13:33           ` Phillip Wood
2019-07-19 21:26     ` [GSoC][PATCH v2 0/2] " Junio C Hamano
2019-07-19 21:47       ` Junio C Hamano
2019-07-12 18:53 ` [GSoC][PATCH 1/2] sequencer: add NULL checks under read_author_script Rohit Ashiwal
2019-07-15 18:04   ` Junio C Hamano
2019-07-12 18:53 ` [GSoC][PATCH 2/2] rebase -i: support --committer-date-is-author-date Rohit Ashiwal
2019-07-14 11:31   ` Rohit Ashiwal
2019-07-18 18:55 ` [GSoC][PATCH v2 0/1] rebase -i: support --ignore-whitespace Rohit Ashiwal
2019-07-18 18:55   ` [GSoC][PATCH v2 1/1] rebase -i: add --ignore-whitespace flag Rohit Ashiwal
2019-07-19 21:33     ` Junio C Hamano
2019-07-23 19:59       ` Rohit Ashiwal
2019-07-23 20:57         ` Junio C Hamano
2019-07-22 10:00     ` Phillip Wood
2019-07-23 19:58       ` Rohit Ashiwal
2019-07-23 21:01         ` Elijah Newren
2019-07-24 11:14           ` Johannes Schindelin
2019-07-24 21:18 ` [GSoC][PATCH v3 0/1] " Rohit Ashiwal
2019-07-24 21:18   ` [GSoC][PATCH v3 1/1] " Rohit Ashiwal

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