cat option

1 files changed, 31 insertions, 0 deletions

diff --git a/src/firejail/main.c b/src/firejail/main.c
index 79e39b669..afd9af91d 100644
--- a/src/firejail/main.c
+++ b/src/firejail/main.c
@@ -811,6 +811,8 @@ static void run_cmd_and_exit(int i, int argc, char **argv) {
                          }
 
                         // list directory contents
+                        if (!arg_debug)
+                                 arg_quiet = 1;
                         pid_t pid = require_pid(argv[i] + 5);
                         sandboxfs(SANDBOX_FS_LS, pid, path, NULL);
                         exit(0);
@@ -818,6 +820,35 @@ static void run_cmd_and_exit(int i, int argc, char **argv) {
                 else
                         exit_err_feature("file transfer");
         }
+        else if (strncmp(argv[i], "--cat=", 6) == 0) {
+                if (checkcfg(CFG_FILE_TRANSFER)) {
+                        logargs(argc, argv);
+                        if (arg_private_cwd) {
+                                fprintf(stderr, "Error: --cat and --private-cwd options are mutually exclusive\n");
+                                exit(1);
+                        }
+
+                        if ((i + 2) != argc) {
+                                fprintf(stderr, "Error: invalid --cat option, path expected\n");
+                                exit(1);
+                        }
+                        char *path = argv[i + 1];
+                        invalid_filename(path, 0); // no globbing
+                        if (strstr(path, "..")) {
+                                fprintf(stderr, "Error: invalid file name %s\n", path);
+                                exit(1);
+                        }
+
+                        // write file contents to stdout
+                        if (!arg_debug)
+                                 arg_quiet = 1;
+                        pid_t pid = require_pid(argv[i] + 6);
+                        sandboxfs(SANDBOX_FS_CAT, pid, path, NULL);
+                        exit(0);
+                }
+                else
+                        exit_err_feature("file transfer");
+        }
 #endif
         else if (strncmp(argv[i], "--join=", 7) == 0) {
                 if (checkcfg(CFG_JOIN) || getuid() == 0) {