mirror of
https://github.com/git/git.git
synced 2024-11-06 01:03:02 +01:00
7a33bcbe80
* sq_quote_buf is made public, and works on a strbuf. * sq_quote_argv also works on a strbuf. * make sq_quote_argv take a "maxlen" argument to check the buffer won't grow too big. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
79 lines
1.5 KiB
C
79 lines
1.5 KiB
C
#include "cache.h"
|
|
#include "rsh.h"
|
|
#include "quote.h"
|
|
|
|
#define COMMAND_SIZE 4096
|
|
|
|
int setup_connection(int *fd_in, int *fd_out, const char *remote_prog,
|
|
char *url, int rmt_argc, char **rmt_argv)
|
|
{
|
|
char *host;
|
|
char *path;
|
|
int sv[2];
|
|
int i;
|
|
pid_t pid;
|
|
struct strbuf cmd;
|
|
|
|
if (!strcmp(url, "-")) {
|
|
*fd_in = 0;
|
|
*fd_out = 1;
|
|
return 0;
|
|
}
|
|
|
|
host = strstr(url, "//");
|
|
if (host) {
|
|
host += 2;
|
|
path = strchr(host, '/');
|
|
} else {
|
|
host = url;
|
|
path = strchr(host, ':');
|
|
if (path)
|
|
*(path++) = '\0';
|
|
}
|
|
if (!path) {
|
|
return error("Bad URL: %s", url);
|
|
}
|
|
|
|
/* $GIT_RSH <host> "env GIT_DIR=<path> <remote_prog> <args...>" */
|
|
strbuf_init(&cmd, COMMAND_SIZE);
|
|
strbuf_addstr(&cmd, "env ");
|
|
strbuf_addstr(&cmd, GIT_DIR_ENVIRONMENT "=");
|
|
sq_quote_buf(&cmd, path);
|
|
strbuf_addch(&cmd, ' ');
|
|
sq_quote_buf(&cmd, remote_prog);
|
|
|
|
for (i = 0 ; i < rmt_argc ; i++) {
|
|
strbuf_addch(&cmd, ' ');
|
|
sq_quote_buf(&cmd, rmt_argv[i]);
|
|
}
|
|
|
|
strbuf_addstr(&cmd, " -");
|
|
|
|
if (cmd.len >= COMMAND_SIZE)
|
|
return error("Command line too long");
|
|
|
|
if (socketpair(AF_UNIX, SOCK_STREAM, 0, sv))
|
|
return error("Couldn't create socket");
|
|
|
|
pid = fork();
|
|
if (pid < 0)
|
|
return error("Couldn't fork");
|
|
if (!pid) {
|
|
const char *ssh, *ssh_basename;
|
|
ssh = getenv("GIT_SSH");
|
|
if (!ssh) ssh = "ssh";
|
|
ssh_basename = strrchr(ssh, '/');
|
|
if (!ssh_basename)
|
|
ssh_basename = ssh;
|
|
else
|
|
ssh_basename++;
|
|
close(sv[1]);
|
|
dup2(sv[0], 0);
|
|
dup2(sv[0], 1);
|
|
execlp(ssh, ssh_basename, host, cmd.buf, NULL);
|
|
}
|
|
close(sv[0]);
|
|
*fd_in = sv[1];
|
|
*fd_out = sv[1];
|
|
return 0;
|
|
}
|