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From:
Stefan Sperling <stsp@stsp.name>
Subject:
Re: dial fix for git-shell
To:
gameoftrees@openbsd.org
Date:
Sat, 18 Feb 2023 16:50:50 +0100

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On Sat, Feb 18, 2023 at 03:30:59PM +0100, Stefan Sperling wrote:
> This might be needed to make 'got clone' and 'got fetch' work
> for people who use git-shell as a login shell.
> 
>  pass git-{upload,receive}-pack and repository path as one argument to ssh(1)

Apparent git-shell expects single-quotes around the repository path.
Very quirky, but I am willing to accommodate for it...

Does this work?

diff f990756a3987ba6410baf611d561e9b8f285f047 b7785e3dc70cb13011efd95a48fa6d711a7e40e7
commit - f990756a3987ba6410baf611d561e9b8f285f047
commit + b7785e3dc70cb13011efd95a48fa6d711a7e40e7
blob - 3325c8994f55721d8588155cdc72b95d11fd2248
blob + ee259709c5574347c0f8cf0240d326da426a1ca1
--- lib/dial.c
+++ lib/dial.c
@@ -26,6 +26,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
+#include <limits.h>
 
 #include "got_error.h"
 #include "got_path.h"
@@ -206,8 +207,8 @@ got_dial_ssh(pid_t *newpid, int *newfd, const char *ho
 {
 	const struct got_error *error = NULL;
 	int pid, pfd[2];
-	char cmd[64];
-	const char *argv[11];
+	char cmd[64 + PATH_MAX];
+	const char *argv[10];
 	int i = 0, j;
 
 	*newpid = -1;
@@ -228,7 +229,6 @@ got_dial_ssh(pid_t *newpid, int *newfd, const char *ho
 	argv[i++] = "--";
 	argv[i++] = (char *)host;
 	argv[i++] = (char *)cmd;
-	argv[i++] = (char *)path;
 	argv[i++] = NULL;
 	assert(i <= nitems(argv));
 
@@ -249,7 +249,8 @@ got_dial_ssh(pid_t *newpid, int *newfd, const char *ho
 			err(1, "dup2");
 		if (dup2(pfd[0], 1) == -1)
 			err(1, "dup2");
-		n = snprintf(cmd, sizeof(cmd), "git-%s-pack", direction);
+		n = snprintf(cmd, sizeof(cmd), "git-%s-pack '%s'",
+		    direction, path);
 		if (n < 0 || n >= ssizeof(cmd))
 			err(1, "snprintf");
 		if (execv(GOT_DIAL_PATH_SSH, (char *const *)argv) == -1)