mount.cifs: check access of credential files before opening

[samba.git] / client / mount.cifs.c

diff --git a/client/mount.cifs.c b/client/mount.cifs.c
index 1c04e13c8d63aa30657d79f9a55d65d959e23af7..0f41afff9cc6d4c59a30646dd8cfe4e6529f7d64 100644 (file)
--- a/client/mount.cifs.c
+++ b/client/mount.cifs.c
@@ -320,6 +320,11 @@ static int open_cred_file(char * file_name)
        char * temp_val;
        FILE * fs;
        int i, length;
+
+       i = access(file_name, R_OK);
+       if (i)
+               return i;
+
        fs = fopen(file_name,"r");
        if(fs == NULL)
                return errno;
@@ -442,6 +447,12 @@ static int get_password_from_file(int file_descript, char * filename)
        }
 
        if(filename != NULL) {
+               rc = access(filename, R_OK);
+               if (rc) {
+                       fprintf(stderr, "mount.cifs failed: access check of %s failed: %s\n",
+                                       filename, strerror(errno));
+                       exit(EX_SYSERR);
+               }
                file_descript = open(filename, O_RDONLY);
                if(file_descript < 0) {
                        fprintf(stderr, "mount.cifs failed. %s attempting to open password file %s\n",