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Diffstat (limited to 'daemon.c')
-rw-r--r--daemon.c66
1 files changed, 60 insertions, 6 deletions
diff --git a/daemon.c b/daemon.c
index 4c8346d..fa28300 100644
--- a/daemon.c
+++ b/daemon.c
@@ -20,6 +20,7 @@
static int log_syslog;
static int verbose;
static int reuseaddr;
+static int informative_errors;
static const char daemon_usage[] =
"git daemon [--verbose] [--syslog] [--export-all]\n"
@@ -108,11 +109,11 @@ static void NORETURN daemon_die(const char *err, va_list params)
exit(1);
}
-static char *path_ok(char *directory)
+static const char *path_ok(char *directory)
{
static char rpath[PATH_MAX];
static char interp_path[PATH_MAX];
- char *path;
+ const char *path;
char *dir;
dir = directory;
@@ -247,6 +248,14 @@ static int git_daemon_config(const char *var, const char *value, void *cb)
return 0;
}
+static int daemon_error(const char *dir, const char *msg)
+{
+ if (!informative_errors)
+ msg = "access denied or repository not exported";
+ packet_write(1, "ERR %s: %s", msg, dir);
+ return -1;
+}
+
static int run_service(char *dir, struct daemon_service *service)
{
const char *path;
@@ -257,11 +266,11 @@ static int run_service(char *dir, struct daemon_service *service)
if (!enabled && !service->overridable) {
logerror("'%s': service not enabled.", service->name);
errno = EACCES;
- return -1;
+ return daemon_error(dir, "service not enabled");
}
if (!(path = path_ok(dir)))
- return -1;
+ return daemon_error(dir, "no such repository");
/*
* Security on the cheap.
@@ -277,7 +286,7 @@ static int run_service(char *dir, struct daemon_service *service)
if (!export_all_trees && access("git-daemon-export-ok", F_OK)) {
logerror("'%s': repository not exported.", path);
errno = EACCES;
- return -1;
+ return daemon_error(dir, "repository not exported");
}
if (service->overridable) {
@@ -291,7 +300,7 @@ static int run_service(char *dir, struct daemon_service *service)
logerror("'%s': service not enabled for '%s'",
service->name, path);
errno = EACCES;
- return -1;
+ return daemon_error(dir, "service not enabled");
}
/*
@@ -734,6 +743,29 @@ struct socketlist {
size_t alloc;
};
+static const char *ip2str(int family, struct sockaddr *sin, socklen_t len)
+{
+#ifdef NO_IPV6
+ static char ip[INET_ADDRSTRLEN];
+#else
+ static char ip[INET6_ADDRSTRLEN];
+#endif
+
+ switch (family) {
+#ifndef NO_IPV6
+ case AF_INET6:
+ inet_ntop(family, &((struct sockaddr_in6*)sin)->sin6_addr, ip, len);
+ break;
+#endif
+ case AF_INET:
+ inet_ntop(family, &((struct sockaddr_in*)sin)->sin_addr, ip, len);
+ break;
+ default:
+ strcpy(ip, "<unknown>");
+ }
+ return ip;
+}
+
#ifndef NO_IPV6
static int setup_named_sock(char *listen_addr, int listen_port, struct socketlist *socklist)
@@ -780,15 +812,22 @@ static int setup_named_sock(char *listen_addr, int listen_port, struct socketlis
#endif
if (set_reuse_addr(sockfd)) {
+ logerror("Could not set SO_REUSEADDR: %s", strerror(errno));
close(sockfd);
continue;
}
if (bind(sockfd, ai->ai_addr, ai->ai_addrlen) < 0) {
+ logerror("Could not bind to %s: %s",
+ ip2str(ai->ai_family, ai->ai_addr, ai->ai_addrlen),
+ strerror(errno));
close(sockfd);
continue; /* not fatal */
}
if (listen(sockfd, 5) < 0) {
+ logerror("Could not listen to %s: %s",
+ ip2str(ai->ai_family, ai->ai_addr, ai->ai_addrlen),
+ strerror(errno));
close(sockfd);
continue; /* not fatal */
}
@@ -835,16 +874,23 @@ static int setup_named_sock(char *listen_addr, int listen_port, struct socketlis
return 0;
if (set_reuse_addr(sockfd)) {
+ logerror("Could not set SO_REUSEADDR: %s", strerror(errno));
close(sockfd);
return 0;
}
if ( bind(sockfd, (struct sockaddr *)&sin, sizeof sin) < 0 ) {
+ logerror("Could not listen to %s: %s",
+ ip2str(AF_INET, (struct sockaddr *)&sin, sizeof(sin)),
+ strerror(errno));
close(sockfd);
return 0;
}
if (listen(sockfd, 5) < 0) {
+ logerror("Could not listen to %s: %s",
+ ip2str(AF_INET, (struct sockaddr *)&sin, sizeof(sin)),
+ strerror(errno));
close(sockfd);
return 0;
}
@@ -1167,6 +1213,14 @@ int main(int argc, char **argv)
make_service_overridable(arg + 18, 0);
continue;
}
+ if (!prefixcmp(arg, "--informative-errors")) {
+ informative_errors = 1;
+ continue;
+ }
+ if (!prefixcmp(arg, "--no-informative-errors")) {
+ informative_errors = 0;
+ continue;
+ }
if (!strcmp(arg, "--")) {
ok_paths = &argv[i+1];
break;