[PATCH 1/3] wincred: ignore unknown lines (do not die)

From: Matthew John Cheetham via GitGitGadget <gitgitgadget@gmail.com>
Date: Sep 22, 2022, 16:59 UTC
Message-ID: <6426f9c3954866b3fd9259d1a58d2c41dc42e17f.1663865974.git.gitgitgadget@gmail.com>
In-Reply-To: <pull.1363.git.1663865974.gitgitgadget@gmail.com>

From: Matthew John Cheetham <mjcheetham@outlook.com>

It is the expectation that credential helpers be liberal in what they accept and conservative in what they return, to allow for future growth and evolution of the protocol/interaction.

All of the other helpers (store, cache, osxkeychain, libsecret, gnome-keyring) except `netrc` currently ignore any credential lines that are not recognised, whereas the Windows helper (wincred) instead dies.

Fix the discrepancy and ignore unknown lines in the wincred helper.

Signed-off-by: Matthew John Cheetham <mjcheetham@outlook.com>
---
 contrib/credential/wincred/git-credential-wincred.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/contrib/credential/wincred/git-credential-wincred.c b/contrib/credential/wincred/git-credential-wincred.c
index 5091048f9c6..ead6e267c78 100644
--- a/contrib/credential/wincred/git-credential-wincred.c
+++ b/contrib/credential/wincred/git-credential-wincred.c
@@ -278,8 +278,11 @@ static void read_credential(void)
 			wusername = utf8_to_utf16_dup(v);
 		} else if (!strcmp(buf, "password"))
 			password = utf8_to_utf16_dup(v);
-		else
-			die("unrecognized input");
+		/*
+		 * Ignore other lines; we don't know what they mean, but
+		 * this future-proofs us when later versions of git do
+		 * learn new lines, and the helpers are updated to match.
+		 */
 	}
 }

-- 
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