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#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <popt.h>
#include "libsmbclient.h"
#include "get_auth_data_fn.h"
enum acl_mode
{
SMB_ACL_LIST,
SMB_ACL_GET,
SMB_ACL_SET,
SMB_ACL_DELETE,
SMB_ACL_MODIFY,
SMB_ACL_ADD,
SMB_ACL_CHOWN,
SMB_ACL_CHGRP
};
int main(int argc, const char *argv[])
{
int opt;
int flags;
int debug = 0;
int numeric = 0;
int stat_and_retry = 0;
int full_time_names = 0;
enum acl_mode mode = SMB_ACL_LIST;
static char *the_acl = NULL;
int ret;
char *p;
char *debugstr;
char path[1024];
char value[1024];
poptContext pc;
struct stat st;
struct poptOption long_options[] =
{
POPT_AUTOHELP
{
"numeric", 'n', POPT_ARG_NONE, &numeric,
1, "Don't resolve sids or masks to names"
},
{
"debug", 'd', POPT_ARG_INT, &debug,
0, "Set debug level (0-100)"
},
{
"full_time_names", 'f', POPT_ARG_NONE, &full_time_names,
1,
"Use new style xattr names, which include CREATE_TIME"
},
{
"delete", 'D', POPT_ARG_STRING, NULL,
'D', "Delete an acl", "ACL"
},
{
"modify", 'M', POPT_ARG_STRING, NULL,
'M', "Modify an acl", "ACL"
},
{
"add", 'a', POPT_ARG_STRING, NULL,
'a', "Add an acl", "ACL"
},
{
"set", 'S', POPT_ARG_STRING, NULL,
'S', "Set acls", "ACLS"
},
{
"chown", 'C', POPT_ARG_STRING, NULL,
'C', "Change ownership of a file", "USERNAME"
},
{
"chgrp", 'G', POPT_ARG_STRING, NULL,
'G', "Change group ownership of a file", "GROUPNAME"
},
{
"get", 'g', POPT_ARG_STRING, NULL,
'g', "Get a specific acl attribute", "ACL"
},
{
"stat_and_retry", 'R', POPT_ARG_NONE, &stat_and_retry,
1, "After 'get' do 'stat' and another 'get'"
},
{
NULL
}
};
setbuf(stdout, NULL);
pc = poptGetContext("smbcacls", argc, argv, long_options, 0);
poptSetOtherOptionHelp(pc, "smb://server1/share1/filename");
while ((opt = poptGetNextOpt(pc)) != -1) {
switch (opt) {
case 'S':
the_acl = strdup(poptGetOptArg(pc));
mode = SMB_ACL_SET;
break;
case 'D':
the_acl = strdup(poptGetOptArg(pc));
mode = SMB_ACL_DELETE;
break;
case 'M':
the_acl = strdup(poptGetOptArg(pc));
mode = SMB_ACL_MODIFY;
break;
case 'a':
the_acl = strdup(poptGetOptArg(pc));
mode = SMB_ACL_ADD;
break;
case 'g':
the_acl = strdup(poptGetOptArg(pc));
mode = SMB_ACL_GET;
break;
case 'C':
the_acl = strdup(poptGetOptArg(pc));
mode = SMB_ACL_CHOWN;
break;
case 'G':
the_acl = strdup(poptGetOptArg(pc));
mode = SMB_ACL_CHGRP;
break;
}
}
/* Make connection to server */
if(!poptPeekArg(pc)) {
poptPrintUsage(pc, stderr, 0);
return 1;
}
strcpy(path, poptGetArg(pc));
if (smbc_init(get_auth_data_fn, debug) != 0)
{
printf("Could not initialize smbc_ library\n");
return 1;
}
if (full_time_names) {
SMBCCTX *context = smbc_set_context(NULL);
smbc_setOptionFullTimeNames(context, 1);
}
/* Perform requested action */
switch(mode)
{
case SMB_ACL_LIST:
ret = smbc_listxattr(path, value, sizeof(value)-2);
if (ret < 0)
{
printf("Could not get attribute list for [%s] %d: %s\n",
path, errno, strerror(errno));
return 1;
}
/*
* The list of attributes has a series of null-terminated strings.
* The list of strings terminates with an extra null byte, thus two in
* a row. Ensure that our buffer, which is conceivably shorter than
* the list of attributes, actually ends with two null bytes in a row.
*/
value[sizeof(value) - 2] = '\0';
value[sizeof(value) - 1] = '\0';
printf("Supported attributes:\n");
for (p = value; *p; p += strlen(p) + 1)
{
printf("\t%s\n", p);
}
break;
case SMB_ACL_GET:
do
{
if (the_acl == NULL)
{
if (numeric)
{
the_acl = "system.*";
}
else
{
the_acl = "system.*+";
}
}
ret = smbc_getxattr(path, the_acl, value, sizeof(value));
if (ret < 0)
{
printf("Could not get attributes for [%s] %d: %s\n",
path, errno, strerror(errno));
return 1;
}
printf("Attributes for [%s] are:\n%s\n", path, value);
if (stat_and_retry)
{
if (smbc_stat(path, &st) < 0)
{
perror("smbc_stat");
return 1;
}
}
--stat_and_retry;
} while (stat_and_retry >= 0);
break;
case SMB_ACL_ADD:
flags = SMBC_XATTR_FLAG_CREATE;
debugstr = "add attributes";
goto do_set;
case SMB_ACL_MODIFY:
flags = SMBC_XATTR_FLAG_REPLACE;
debugstr = "modify attributes";
goto do_set;
case SMB_ACL_CHOWN:
snprintf(value, sizeof(value),
"system.nt_sec_desc.owner%s:%s",
numeric ? "" : "+", the_acl);
the_acl = value;
debugstr = "chown owner";
goto do_set;
case SMB_ACL_CHGRP:
snprintf(value, sizeof(value),
"system.nt_sec_desc.group%s:%s",
numeric ? "" : "+", the_acl);
the_acl = value;
debugstr = "change group";
goto do_set;
case SMB_ACL_SET:
flags = 0;
debugstr = "set attributes";
do_set:
if ((p = strchr(the_acl, ':')) == NULL)
{
printf("Missing value. ACL must be name:value pair\n");
return 1;
}
*p++ = '\0';
ret = smbc_setxattr(path, the_acl, p, strlen(p), flags);
if (ret < 0)
{
printf("Could not %s for [%s] %d: %s\n",
debugstr, path, errno, strerror(errno));
return 1;
}
break;
case SMB_ACL_DELETE:
ret = smbc_removexattr(path, the_acl);
if (ret < 0)
{
printf("Could not remove attribute %s for [%s] %d:%s\n",
the_acl, path, errno, strerror(errno));
return 1;
}
break;
default:
printf("operation not yet implemented\n");
break;
}
return 0;
}
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