t5150: protect backslash with backslash in shell

diff --git a/http-backend.c b/http-backend.c
index 8e08f057dd6536b06d1ee017e4733ad1585e782e..d1e83d0906dbc9d677630cdf74615ec3f9dfc46d 100644 (file)
--- a/http-backend.c
+++ b/http-backend.c
@@ -108,6 +108,7 @@ static const char *get_parameter(const char *name)
        return i ? i->util : NULL;
 }
 
+__attribute__((format (printf, 2, 3)))
 static void format_write(int fd, const char *fmt, ...)
 {
        static char buffer[1024];
@@ -165,6 +166,7 @@ static void end_headers(void)
        safe_write(1, "\r\n", 2);
 }
 
+__attribute__((format (printf, 1, 2)))
 static NORETURN void not_found(const char *err, ...)
 {
        va_list params;
@@ -180,6 +182,7 @@ static NORETURN void not_found(const char *err, ...)
        exit(0);
 }
 
+__attribute__((format (printf, 1, 2)))
 static NORETURN void forbidden(const char *err, ...)
 {
        va_list params;
@@ -535,15 +538,19 @@ static void service_rpc(char *service_name)
 
 static NORETURN void die_webcgi(const char *err, va_list params)
 {
-       char buffer[1000];
+       static int dead;
 
-       http_status(500, "Internal Server Error");
-       hdr_nocache();
-       end_headers();
+       if (!dead) {
+               char buffer[1000];
+               dead = 1;
 
-       vsnprintf(buffer, sizeof(buffer), err, params);
-       fprintf(stderr, "fatal: %s\n", buffer);
-       exit(0);
+               vsnprintf(buffer, sizeof(buffer), err, params);
+               fprintf(stderr, "fatal: %s\n", buffer);
+               http_status(500, "Internal Server Error");
+               hdr_nocache();
+               end_headers();
+       }
+       exit(0); /* we successfully reported a failure ;-) */
 }
 
 static char* getdir(void)
@@ -645,6 +652,9 @@ int main(int argc, char **argv)
        setup_path();
        if (!enter_repo(dir, 0))
                not_found("Not a git repository: '%s'", dir);
+       if (!getenv("GIT_HTTP_EXPORT_ALL") &&
+           access("git-daemon-export-ok", F_OK) )
+               not_found("Repository not exported: '%s'", dir);
 
        git_config(http_config, NULL);
        cmd->imp(cmd_arg);