/* // AUTHOR // Stef Walter // James Quick // // LICENSE // This software is in the public domain. // // The software is provided "as is", without warranty of any kind, // express or implied, including but not limited to the warranties // of merchantability, fitness for a particular purpose, and // noninfringement. In no event shall the author(s) be liable for any // claim, damages, or other liability, whether in an action of // contract, tort, or otherwise, arising from, out of, or in connection // with the software or the use or other dealings in the software. // // SUPPORT // Send bug reports to: // // CHANGES // 1.1 // Initial implementation // // injail // A utility function to determine if a process is running in a // FreeBSD jail. // // This code was contributed by James E. Quick mailto:jq@quick.com // The code may be freely re-used under the terms of the BSD copyright, // as long as this comment remains intact. */ #include int injail(); /* main for injail * return 0 if in a jail * return 1 if not in jail * return 2 if error prevented determining status * jq 05/28/2002 */ main(int argc, char *argv[]) { int jailed = injail(); if(jailed == -1) errx(2, "Could not determine jailed status.\n"); return jailed ? 0 : 1; }