build fixes

1 files changed, 82 insertions, 0 deletions

diff --git a/src/firejail/checkcfg.c b/src/firejail/checkcfg.c
new file mode 100644
index 000000000..9313bb1a4
--- /dev/null
+++ b/src/firejail/checkcfg.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2014-2016 Firejail Authors
+ *
+ * This file is part of firejail project
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+#include "firejail.h"
+#include <sys/stat.h>
+
+#define MAX_READ 8192                             // line buffer for profile files
+
+static int initialized = 0;
+static int cfg_val[CFG_MAX];
+
+int checkcfg(int val) {
+        EUID_ASSERT();
+        assert(val < CFG_MAX);
+        int line = 0;
+
+        if (!initialized) {
+                // initialize defaults
+                int i;
+                for (i = 0; i < CFG_MAX; i++)
+                        cfg_val[i] = 1; // most of them are enabled by default
+                
+                // open configuration file
+                char *fname;
+                if (asprintf(&fname, "%s/firejail.config", SYSCONFDIR) == -1)
+                        errExit("asprintf");
+
+                FILE *fp = fopen(fname, "r");
+                if (!fp) {
+                        fprintf(stderr, "Error: Firejail configuration file %s not found\n", fname);
+                        exit(1);
+                }
+                
+                // read configuration file
+                char buf[MAX_READ];
+                while (fgets(buf,MAX_READ, fp)) {
+                        line++;
+                        if (*buf == '#' || *buf == '\n') 
+                                continue;
+
+                        // parse line                           
+                        line_remove_spaces(buf);
+                        if (strncmp(buf, "file-transfer ", 14) == 0) {
+                                if (strcmp(buf + 14, "yes") == 0)
+                                        cfg_val[CFG_FILE_TRANSFER] = 1;
+                                else if (strcmp(buf + 14, "no") == 0)
+                                        cfg_val[CFG_FILE_TRANSFER] = 0;
+                                else
+                                        goto errout;
+                        }
+                        else
+                                goto errout;
+                }
+
+                fclose(fp);
+                free(fname);
+                initialized = 1;
+        }
+        
+        return cfg_val[val];
+        
+errout:
+        fprintf(stderr, "Error: invalid line %d in firejail configuration file\n", line );
+        exit(1);
+}
+