X-Git-Url: https://gapil.gnulinux.it/gitweb/?a=blobdiff_plain;f=sources%2Fgetcap.c;fp=sources%2Fgetcap.c;h=116f3cbbfbeb9f8bac1161cbac3724964ed3592b;hb=2fcfdcb7ec5f5fdacbdeaff72961f1c35d0858dd;hp=0000000000000000000000000000000000000000;hpb=29b7512f9179b716d031c978cd39dc96cd84b8b7;p=gapil.git

diff --git a/sources/getcap.c b/sources/getcap.c
new file mode 100644
index 0000000..116f3cb
--- /dev/null
+++ b/sources/getcap.c
@@ -0,0 +1,128 @@
+/* getcap.c
+ * 
+ * Copyright (C) 2006 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.
+ */
+/****************************************************************
+ *
+ * Program getcap.c: 
+ * Program to test capabilities functions
+ *
+ * Author: Simone Piccardi
+ * Mar. 2006
+ *
+ * Usage: getcap -h give all info's
+ *
+ *
+ ****************************************************************/
+/* 
+ * Include needed headers
+ */
+#define _GNU_SOURCE
+#include <errno.h>       /* error definitions and routines */ 
+#include <stdlib.h>      /* C standard library */
+#include <unistd.h>      /* unix standard library */
+#include <stdio.h>	 /* standard I/O library */
+#include <string.h>      /* string functions */
+#include <sys/types.h>
+#include <sys/capability.h>
+
+/* Help printing routine */
+void usage(void);
+
+int main(int argc, char *argv[])
+{
+/* 
+ * Variables definition  
+ */
+    int i;
+    pid_t pid = 0;
+    cap_t capab = NULL;
+    char *string;
+    int res;
+
+    /*
+     * Input section: decode command line parameters 
+     * Use getopt function
+     */
+    opterr = 0;	 /* don't want writing to stderr */
+    while ( (i = getopt(argc, argv, "hp:")) != -1) {
+	switch (i) {
+	/* 
+	 * Handling options 
+	 */ 
+	case 'h':   /* help option */
+	    printf("Wrong -h option use\n");
+	    usage();
+	    return -1;
+	    break;
+	case 'p':   /* specify pid */
+	    pid = strtol(optarg, NULL, 10);
+	    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("From %d arguments, removed %d options\n", argc, optind);
+        usage();
+    }
+    
+    if (!pid) {
+	capab = cap_get_proc();
+	if (capab == NULL) {
+	    perror("cannot get current process capabilities");
+	    return 1;
+	}
+    } else {
+	capab = cap_init();
+	res = capgetp(pid, capab);
+	if (res) {
+	    perror("cannot get process capabilities");
+	    return 1;
+	}
+    }
+
+    string = cap_to_text(capab, NULL);
+    printf("Capability: %s\n", string);
+
+    cap_free(capab);
+    return 0;
+}
+/*
+ * routine to print usage info and exit
+ */
+void usage(void) {
+    printf("Program getcap: print current process capabilities \n");
+    printf("Usage:\n");
+    printf("  getcap [-h] [-p pid] \n");
+    printf("  -h	   print this help\n");
+    printf("  -p PID	   print process PID capabilities\n");
+    
+    exit(1);
+}
+
+