1 files changed, 83 insertions, 0 deletions

diff --git a/src/tools/extract_caps.c b/src/tools/extract_caps.c
new file mode 100644
index 000000000..94a062ccb
--- /dev/null
+++ b/src/tools/extract_caps.c
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2014, 2015 netblue30 (netblue30@yahoo.com)
+ *
+ * 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+#define BUFMAX 4096
+
+int main(int argc, char **argv) {
+        if (argc != 2) {
+                printf("usage: %s /usr/include/linux/capability.h\n", argv[0]);
+                return 1;
+        }
+        
+        //open file
+        FILE *fp = fopen(argv[1], "r");
+        if (!fp) {
+                fprintf(stderr, "Error: cannot open file\n");
+                return 1;
+        }
+        
+        // read file
+        char buf[BUFMAX];
+        while (fgets(buf, BUFMAX, fp)) {
+                // cleanup
+                char *start = buf;
+                while (*start == ' ' || *start == '\t')
+                        start++;
+                char *end = strchr(start, '\n');
+                if (end)
+                        *end = '\0';
+                
+                // parsing
+                if (strncmp(start, "#define CAP_", 12) == 0) {
+                        if (strstr(start, "CAP_LAST_CAP"))
+                                break;
+                        
+                        char *ptr1 = start + 8;
+                        char *ptr2 = ptr1;
+                        while (*ptr2 == ' ' || *ptr2 == '\t')
+                                ptr2++;
+                        while (*ptr2 != ' ' && *ptr2 != '\t')
+                                ptr2++;
+                        *ptr2 = '\0';
+                        
+                        ptr2 = strdup(ptr1);
+                        assert(ptr2);
+                        ptr2 += 4;
+                        char *ptr3 = ptr2;
+                        while (*ptr3 != '\0') {
+                                *ptr3 = tolower(*ptr3);
+                                ptr3++;
+                        }
+                        
+                        
+                        printf("#ifdef %s\n", ptr1);
+                        printf("\t{\"%s\", %s },\n", ptr2, ptr1);
+                        printf("#endif\n");
+                        
+                }
+                
+        }
+        fclose(fp);
+        return 0;
+}