examples/libsmbclient/testacl.c

   1 #include <stdlib.h>
   2 #include <string.h>
   3 #include <errno.h>
   4 #include <popt.h>
   5 #include "libsmbclient.h"
   6 #include "get_auth_data_fn.h"
   7
   8 enum acl_mode
   9 {
  10     SMB_ACL_LIST,
  11     SMB_ACL_GET,
  12     SMB_ACL_SET,
  13     SMB_ACL_DELETE,
  14     SMB_ACL_MODIFY,
  15     SMB_ACL_ADD,
  16     SMB_ACL_CHOWN,
  17     SMB_ACL_CHGRP
  18 };
  19
  20
  21 int main(int argc, const char *argv[])
  22 {
  23     int opt;
  24     int flags;
  25     int debug = 0;
  26     int numeric = 0;
  27     int full_time_names = 0;
  28     enum acl_mode mode = SMB_ACL_LIST;
  29     static char *the_acl = NULL;
  30     int ret;
  31     char *p;
  32     char *debugstr;
  33     char path[1024];
  34     char value[1024];
  35     poptContext pc;
  36     struct poptOption long_options[] =
  37         {
  38             POPT_AUTOHELP
  39             {
  40                 "numeric", 'n', POPT_ARG_NONE, &numeric,
  41                 1, "Don't resolve sids or masks to names"
  42             },
  43             {
  44                 "debug", 'd', POPT_ARG_INT, &debug,
  45                 0, "Set debug level (0-100)"
  46             },
  47             {
  48                 "full_time_names", 'f', POPT_ARG_NONE, &full_time_names,
  49                 1,
  50                 "Use new style xattr names, which include CREATE_TIME"
  51             },
  52             {
  53                 "delete", 'D', POPT_ARG_STRING, NULL,
  54                 'D', "Delete an acl", "ACL"
  55             },
  56             {
  57                 "modify", 'M', POPT_ARG_STRING, NULL,
  58                 'M', "Modify an acl", "ACL"
  59             },
  60             {
  61                 "add", 'a', POPT_ARG_STRING, NULL,
  62                 'a', "Add an acl", "ACL"
  63             },
  64             {
  65                 "set", 'S', POPT_ARG_STRING, NULL,
  66                 'S', "Set acls", "ACLS"
  67             },
  68             {
  69                 "chown", 'C', POPT_ARG_STRING, NULL,
  70                 'C', "Change ownership of a file", "USERNAME"
  71             },
  72             {
  73                 "chgrp", 'G', POPT_ARG_STRING, NULL,
  74                 'G', "Change group ownership of a file", "GROUPNAME"
  75             },
  76             {
  77                 "get", 'g', POPT_ARG_STRING, NULL,
  78                 'g', "Get a specific acl attribute", "ACL"
  79             },
  80             {
  81                 NULL
  82             }
  83         };
  84
  85     setbuf(stdout, NULL);
  86
  87     pc = poptGetContext("smbcacls", argc, argv, long_options, 0);
  88
  89     poptSetOtherOptionHelp(pc, "smb://server1/share1/filename");
  90
  91     while ((opt = poptGetNextOpt(pc)) != -1) {
  92         switch (opt) {
  93         case 'S':
  94             the_acl = strdup(poptGetOptArg(pc));
  95             mode = SMB_ACL_SET;
  96             break;
  97
  98         case 'D':
  99             the_acl = strdup(poptGetOptArg(pc));
 100             mode = SMB_ACL_DELETE;
 101             break;
 102
 103         case 'M':
 104             the_acl = strdup(poptGetOptArg(pc));
 105             mode = SMB_ACL_MODIFY;
 106             break;
 107
 108         case 'a':
 109             the_acl = strdup(poptGetOptArg(pc));
 110             mode = SMB_ACL_ADD;
 111             break;
 112
 113         case 'g':
 114             the_acl = strdup(poptGetOptArg(pc));
 115             mode = SMB_ACL_GET;
 116             break;
 117
 118         case 'C':
 119             the_acl = strdup(poptGetOptArg(pc));
 120             mode = SMB_ACL_CHOWN;
 121             break;
 122
 123         case 'G':
 124             the_acl = strdup(poptGetOptArg(pc));
 125             mode = SMB_ACL_CHGRP;
 126             break;
 127         }
 128     }
 129
 130     /* Make connection to server */
 131     if(!poptPeekArg(pc)) {
 132         poptPrintUsage(pc, stderr, 0);
 133         return 1;
 134     }
 135
 136     strcpy(path, poptGetArg(pc));
 137
 138     if (smbc_init(get_auth_data_fn, debug) != 0)
 139     {
 140         printf("Could not initialize smbc_ library\n");
 141         return 1;
 142     }
 143
 144     if (full_time_names) {
 145         SMBCCTX *context = smbc_set_context(NULL);
 146         smbc_option_set(context, "full_time_names", 1);
 147     }
 148
 149     /* Perform requested action */
 150
 151     switch(mode)
 152     {
 153     case SMB_ACL_LIST:
 154         ret = smbc_listxattr(path, value, sizeof(value)-2);
 155         if (ret < 0)
 156         {
 157             printf("Could not get attribute list for [%s] %d: %s\n",
 158                    path, errno, strerror(errno));
 159             return 1;
 160         }
 161
 162         /*
 163          * The list of attributes has a series of null-terminated strings.
 164          * The list of strings terminates with an extra null byte, thus two in
 165          * a row.  Ensure that our buffer, which is conceivably shorter than
 166          * the list of attributes, actually ends with two null bytes in a row.
 167          */
 168         value[sizeof(value) - 2] = '\0';
 169         value[sizeof(value) - 1] = '\0';
 170         printf("Supported attributes:\n");
 171         for (p = value; *p; p += strlen(p) + 1)
 172         {
 173             printf("\t%s\n", p);
 174         }
 175         break;
 176
 177     case SMB_ACL_GET:
 178         if (the_acl == NULL)
 179         {
 180             if (numeric)
 181             {
 182                 the_acl = "system.*";
 183             }
 184             else
 185             {
 186                 the_acl = "system.*+";
 187             }
 188         }
 189         ret = smbc_getxattr(path, the_acl, value, sizeof(value));
 190         if (ret < 0)
 191         {
 192             printf("Could not get attributes for [%s] %d: %s\n",
 193                    path, errno, strerror(errno));
 194             return 1;
 195         }
 196
 197         printf("Attributes for [%s] are:\n%s\n", path, value);
 198         break;
 199
 200     case SMB_ACL_ADD:
 201         flags = SMBC_XATTR_FLAG_CREATE;
 202         debugstr = "add attributes";
 203         goto do_set;
 204
 205     case SMB_ACL_MODIFY:
 206         flags = SMBC_XATTR_FLAG_REPLACE;
 207         debugstr = "modify attributes";
 208         goto do_set;
 209
 210     case SMB_ACL_CHOWN:
 211         snprintf(value, sizeof(value),
 212                  "system.nt_sec_desc.owner%s:%s",
 213                  numeric ? "" : "+", the_acl);
 214         the_acl = value;
 215         debugstr = "chown owner";
 216         goto do_set;
 217
 218     case SMB_ACL_CHGRP:
 219         snprintf(value, sizeof(value),
 220                  "system.nt_sec_desc.group%s:%s",
 221                  numeric ? "" : "+", the_acl);
 222         the_acl = value;
 223         debugstr = "change group";
 224         goto do_set;
 225
 226     case SMB_ACL_SET:
 227         flags = 0;
 228         debugstr = "set attributes";
 229
 230       do_set:
 231         if ((p = strchr(the_acl, ':')) == NULL)
 232         {
 233             printf("Missing value.  ACL must be name:value pair\n");
 234             return 1;
 235         }
 236
 237         *p++ = '\0';
 238
 239         ret = smbc_setxattr(path, the_acl, p, strlen(p), flags);
 240         if (ret < 0)
 241         {
 242             printf("Could not %s for [%s] %d: %s\n",
 243                    debugstr, path, errno, strerror(errno));
 244             return 1;
 245         }
 246         break;
 247
 248     case SMB_ACL_DELETE:
 249         ret = smbc_removexattr(path, the_acl);
 250         if (ret < 0)
 251         {
 252             printf("Could not remove attribute %s for [%s] %d:%s\n",
 253                    the_acl, path, errno, strerror(errno));
 254             return 1;
 255         }
 256         break;
 257
 258     default:
 259         printf("operation not yet implemented\n");
 260         break;
 261     }
 262
 263     return 0;
 264 }