-/* cap_print.c
- *
- * Copyright (C) 2005 Simone Piccardi
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-/*****************************************************************************
- *
- * File cap_print.c: An example for capabilities print
- *
- * Author: S. Piccardi Dec. 2005
- *
- *****************************************************************************/
-#include <stdlib.h> /* C standard library */
-#include <stdio.h> /* standard I/O library */
-#include <unistd.h> /* unix standard library */
-#include <sys/capability.h>
-
-/*
- * Program cap_print
- *
- * Use libcap2 functions and print results
- */
-/* Help printing routine */
-void usage(void);
-
-int main(int argc, char *argv[])
-{
- /*
- * Variables definition
- */
- int i;
- cap_t capstatus;
- cap_flag_t capset=CAP_EFFECTIVE;
- cap_flag_value_t capval;
- cap_value_t capability;
- char * buffer;
- /*
- * Input section: decode command line parameters
- * Use getopt function
- */
- opterr = 0; /* don't want writing to stderr */
- while ( (i = getopt(argc, argv, "hepi")) != -1) {
- switch (i) {
- /*
- * Handling options
- */
- case 'i': /* read inherited set */
- capset=CAP_INHERITABLE;
- break;
- case 'e': /* read effective set */
- capset=CAP_EFFECTIVE;
- break;
- case 'p': /* read permitted set */
- capset=CAP_PERMITTED;
- break;
- case 'h': /* help option */
- printf("Wrong -h option use\n");
- usage();
- return -1;
- break;
- case '?': /* unrecognized options */
- printf("Unrecognized options -%c\n",optopt);
- usage();
- default: /* should not reached */
- usage();
- }
- }
- /* ***********************************************************
- *
- * Options processing completed
- *
- * Main code beginning
- *
- * ***********************************************************/
- if ((argc - optind) != 0) {
- printf("Wrong number of arguments %d\n", argc - optind);
- usage();
- }
- if ( (capstatus = cap_get_proc()) == NULL) {
- perror("Lettura delle capabilities fallita");
- }
- if ( (buffer = cap_to_text(capstatus, NULL)) == NULL) {
- perror("Cannot convert capability status:");
- }
- printf("Capabilities:\n %s\n", buffer);
- exit(0);
-}
-/*
- * routine to print usage info and exit
- */
-void usage(void) {
- printf("Program mygethost: do an hostname resolution \n");
- printf("Usage:\n");
- printf(" mygethost [-h] hostname \n");
- printf(" -h print this help\n");
- exit(1);
-}