add private-bin support to profile builder

1 files changed, 121 insertions, 0 deletions

diff --git a/src/fbuilder/build_bin.c b/src/fbuilder/build_bin.c
new file mode 100644
index 000000000..7d0e2cb7c
--- /dev/null
+++ b/src/fbuilder/build_bin.c
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2014-2017 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 "fbuilder.h"
+
+static FileDB *bin_out = NULL;
+
+static void process_bin(const char *fname) {
+        assert(fname);
+        
+        // process trace file
+        FILE *fp = fopen(fname, "r");
+        if (!fp) {
+                fprintf(stderr, "Error: cannot open %s\n", fname);
+                exit(1);
+        }
+        
+        char buf[MAX_BUF];
+        while (fgets(buf, MAX_BUF, fp)) {
+                // remove \n
+                char *ptr = strchr(buf, '\n');
+                if (ptr)
+                        *ptr = '\0';
+        
+                // parse line: 4:galculator:access /etc/fonts/conf.d:0
+                // number followed by :
+                ptr = buf;
+                if (!isdigit(*ptr))
+                        continue;
+                while (isdigit(*ptr))
+                        ptr++;
+                if (*ptr != ':')
+                        continue;
+                ptr++;
+
+                // next :
+                ptr = strchr(ptr, ':');
+                if (!ptr)
+                        continue;
+                ptr++;
+                if (strncmp(ptr, "exec ", 5) == 0)
+                        ptr +=  5;
+                else
+                        continue;
+                if (strncmp(ptr, "/bin/", 5) == 0)
+                        ptr += 5;
+                else if (strncmp(ptr, "/sbin/", 6) == 0)
+                        ptr += 6;
+                else if (strncmp(ptr, "/usr/bin/", 9) == 0)
+                        ptr += 9;
+                else if (strncmp(ptr, "/usr/sbin/", 10) == 0)
+                        ptr += 10;
+                else if (strncmp(ptr, "/usr/local/bin/", 15) == 0)
+                        ptr += 15;
+                else if (strncmp(ptr, "/usr/local/sbin/", 16) == 0)
+                        ptr += 16;
+                else if (strncmp(ptr, "/usr/games/", 11) == 0)
+                        ptr += 12;
+                else if (strncmp(ptr, "/usr/local/games/", 17) == 0)
+                        ptr += 17;
+                else
+                        continue;
+
+                // end of filename
+                char *ptr2 = strchr(ptr, ':');
+                if (!ptr2)
+                        continue;
+                *ptr2 = '\0';
+                
+                bin_out = filedb_add(bin_out, ptr);
+        }
+        
+        fclose(fp);
+}
+
+
+// process fname, fname.1, fname.2, fname.3, fname.4, fname.5
+void build_bin(const char *fname) {
+        assert(fname);
+        
+        // run fname
+        process_bin(fname);
+        
+        // run all the rest
+        struct stat s;
+        int i;
+        for (i = 1; i <= 5; i++) {
+                char *newname;
+                if (asprintf(&newname, "%s.%d", fname, i) == -1)
+                        errExit("asprintf");
+                if (stat(newname, &s) == 0)
+                        process_bin(newname);
+                free(newname);
+        }
+
+        if (bin_out) {
+                printf("# private-bin ");
+                FileDB *ptr = bin_out;
+                while (ptr) {
+                        printf("%s,", ptr->fname);
+                        ptr = ptr->next;
+                }
+                printf("\n");
+        }
+}