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/*
* 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';
// skip strace
if (strcmp(ptr, "strace") == 0)
continue;
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");
printf("# private-lib\n");
}
}
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