#include "tempfile.h"
#include "credential.h"
#include "unix-socket.h"
-#include "sigchain.h"
#include "parse-options.h"
static struct tempfile socket_file;
static struct strbuf item = STRBUF_INIT;
const char *p;
- strbuf_getline(&item, fh, '\n');
+ strbuf_getline_lf(&item, fh);
if (!skip_prefix(item.buf, "action=", &p))
return error("client sent bogus action line: %s", item.buf);
strbuf_addstr(action, p);
- strbuf_getline(&item, fh, '\n');
+ strbuf_getline_lf(&item, fh);
if (!skip_prefix(item.buf, "timeout=", &p))
return error("client sent bogus timeout line: %s", item.buf);
*timeout = atoi(p);
fprintf(out, "password=%s\n", e->item.password);
}
}
- else if (!strcmp(action.buf, "exit"))
+ else if (!strcmp(action.buf, "exit")) {
+ /*
+ * It's important that we clean up our socket first, and then
+ * signal the client only once we have finished the cleanup.
+ * Calling exit() directly does this, because we clean up in
+ * our atexit() handler, and then signal the client when our
+ * process actually ends, which closes the socket and gives
+ * them EOF.
+ */
exit(0);
+ }
else if (!strcmp(action.buf, "erase"))
remove_credential(&c);
else if (!strcmp(action.buf, "store")) {
client = accept(fd, NULL, NULL);
if (client < 0) {
- warning("accept failed: %s", strerror(errno));
+ warning_errno("accept failed");
return 1;
}
client2 = dup(client);
if (client2 < 0) {
- warning("dup failed: %s", strerror(errno));
+ warning_errno("dup failed");
close(client);
return 1;
}
close(fd);
}
-static const char permissions_advice[] =
+static const char permissions_advice[] = N_(
"The permissions on your socket directory are too loose; other\n"
"users may be able to read your cached credentials. Consider running:\n"
"\n"
-" chmod 0700 %s";
-static void check_socket_directory(const char *path)
+" chmod 0700 %s");
+static void init_socket_directory(const char *path)
{
struct stat st;
char *path_copy = xstrdup(path);
if (!stat(dir, &st)) {
if (st.st_mode & 077)
- die(permissions_advice, dir);
- free(path_copy);
- return;
+ die(_(permissions_advice), dir);
+ } else {
+ /*
+ * We must be sure to create the directory with the correct mode,
+ * not just chmod it after the fact; otherwise, there is a race
+ * condition in which somebody can chdir to it, sleep, then try to open
+ * our protected socket.
+ */
+ if (safe_create_leading_directories_const(dir) < 0)
+ die_errno("unable to create directories for '%s'", dir);
+ if (mkdir(dir, 0700) < 0)
+ die_errno("unable to mkdir '%s'", dir);
}
- /*
- * We must be sure to create the directory with the correct mode,
- * not just chmod it after the fact; otherwise, there is a race
- * condition in which somebody can chdir to it, sleep, then try to open
- * our protected socket.
- */
- if (safe_create_leading_directories_const(dir) < 0)
- die_errno("unable to create directories for '%s'", dir);
- if (mkdir(dir, 0700) < 0)
- die_errno("unable to mkdir '%s'", dir);
+ if (chdir(dir))
+ /*
+ * We don't actually care what our cwd is; we chdir here just to
+ * be a friendly daemon and avoid tying up our original cwd.
+ * If this fails, it's OK to just continue without that benefit.
+ */
+ ;
+
free(path_copy);
}
-int main(int argc, const char **argv)
+int cmd_main(int argc, const char **argv)
{
const char *socket_path;
+ int ignore_sighup = 0;
static const char *usage[] = {
"git-credential-cache--daemon [opts] <socket_path>",
NULL
OPT_END()
};
+ git_config_get_bool("credentialcache.ignoresighup", &ignore_sighup);
+
argc = parse_options(argc, argv, NULL, options, usage, 0);
socket_path = argv[0];
if (!socket_path)
usage_with_options(usage, options);
- check_socket_directory(socket_path);
+ if (!is_absolute_path(socket_path))
+ die("socket directory must be an absolute path");
+
+ init_socket_directory(socket_path);
register_tempfile(&socket_file, socket_path);
+
+ if (ignore_sighup)
+ signal(SIGHUP, SIG_IGN);
+
serve_cache(socket_path, debug);
delete_tempfile(&socket_file);