Rimosso programma inutile e messo programma di test per le ACL.

[gapil.git] / sources / mygetfacl.c

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+/* mygetfacl.c
+ * 
+ * Copyright (C) 2012 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 mygetfacl.c: 
+ * A simple program that get a file acl
+ *
+ * Author: Simone Piccardi
+ * Jan 2012
+ *
+ ****************************************************************/
+/* 
+ * Include needed headers
+ */
+#include <sys/types.h>   /* primitive system data types */
+#include <stdlib.h>      /* C standard library */
+#include <unistd.h>      /* unix standard library */
+#include <stdio.h>       /* standard I/O library */
+#include <sys/acl.h>     /* acl library (use -l acl) */
+#include <errno.h>     /* acl library (use -l acl) */
+
+
+/* pass -D DEBUG to gcc to enable debug printing */
+#ifdef DEBUG
+#define debug printf
+#else
+#define debug(fmt, arg...)
+#endif /* DEBUG */
+
+/*
+ * Program mygetfacl
+ */
+/* Help printing routine */
+void usage(void);
+
+int main(int argc, char *argv[])
+{
+/*
+ * Variables definition
+ */    
+    acl_t acl;
+    ssize_t size;
+    char * buffer;
+    int i;
+    /*
+     * Input section: decode command line parameters 
+     * Use getopt function
+     */
+    opterr = 0;         /* don't want writing to stderr */
+    while ( (i = getopt(argc, argv, "h")) != -1) {
+       switch (i) {
+       /* 
+        * Handling options 
+        */ 
+       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();
+       }
+    }
+    /* must have an argument */
+    if ((argc - optind) != 1) {
+        printf("Wrong number of arguments %d\n", argc - optind);
+        usage();
+    }
+    /* main body */
+    errno = 0;
+    acl = acl_get_file(argv[1], ACL_TYPE_DEFAULT);
+    if (acl == NULL) {
+       printf("error on getting ACL for file %s\n", argv[1]);
+       perror(argv[1]);
+       return 1;
+    }
+    buffer = acl_to_text(acl, &size);
+    if (buffer == NULL) {
+       perror("cannot convert acl");
+       return 1;
+    }
+    printf("ACL:%s\n", buffer);
+    acl_free(acl);
+    acl_free(buffer);
+    return 0;
+}
+
+
+/*
+ * routine to print usage info and exit
+ */
+void usage(void) {
+    printf("Program mymount:  \n");
+    printf("Usage:\n");
+    printf("mygetfacl [-h] file\n");
+    printf("  -h          print this help\n");
+    exit(1);
+}