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r18116: Make max usershares an advisory limit, pointed out

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by Cybionet <cybionet@videotron.ca>.
Jeremy.
(This used to be commit fb755e83ee98fb830fb2340f175e8ca8d89c84d5)
This commit is contained in:
Jeremy Allison 2006-09-06 00:35:27 +00:00 committed by Gerald (Jerry) Carter
parent 8f50142e4d
commit 8b5bef1ad1
1 changed files with 68 additions and 0 deletions
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68
source3/utils/net_usershare.c
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@ -457,6 +457,63 @@ static int net_usershare_info(int argc, const char **argv)
return ret;
}
/***************************************************************************
Count the current total number of usershares.
***************************************************************************/
static int count_num_usershares(void)
{
SMB_STRUCT_DIR *dp;
SMB_STRUCT_DIRENT *de;
pstring basepath;
int num_usershares = 0;
get_basepath(basepath);
dp = sys_opendir(basepath);
if (!dp) {
d_fprintf(stderr, "count_num_usershares: cannot open usershare directory %s. Error %s\n",
basepath, strerror(errno) );
return -1;
}
while((de = sys_readdir(dp)) != 0) {
SMB_STRUCT_STAT sbuf;
pstring path;
const char *n = de->d_name;
/* Ignore . and .. */
if (*n == '.') {
if ((n[1] == '\0') || (n[1] == '.' && n[2] == '\0')) {
continue;
}
}
if (!validate_net_name(n, INVALID_SHARENAME_CHARS, strlen(n))) {
d_fprintf(stderr, "count_num_usershares: ignoring bad share name %s\n",n);
continue;
}
pstrcpy(path, basepath);
pstrcat(path, "/");
pstrcat(path, n);
if (sys_lstat(path, &sbuf) != 0) {
d_fprintf(stderr, "count_num_usershares: can't lstat file %s. Error was %s\n",
path, strerror(errno) );
continue;
}
if (!S_ISREG(sbuf.st_mode)) {
d_fprintf(stderr, "count_num_usershares: file %s is not a regular file. Ignoring.\n",
path );
continue;
}
num_usershares++;
}
sys_closedir(dp);
return num_usershares;
}
/***************************************************************************
Add a single userlevel share.
***************************************************************************/
@ -481,6 +538,7 @@ static int net_usershare_add(int argc, const char **argv)
size_t to_write;
uid_t myeuid = geteuid();
BOOL guest_ok = False;
int num_usershares;
us_comment = "";
arg_acl = "S-1-1-0:R";
@ -528,6 +586,16 @@ static int net_usershare_add(int argc, const char **argv)
break;
}
/* Ensure we're under the "usershare max shares" number. Advisory only. */
num_usershares = count_num_usershares();
if (num_usershares > lp_usershare_max_shares()) {
d_fprintf(stderr, "net usershare add: too many usershares already defined (%d), "
"maximum number allowed is %d.\n",
num_usershares, lp_usershare_max_shares() );
SAFE_FREE(sharename);
return -1;
}
if (!validate_net_name(sharename, INVALID_SHARENAME_CHARS, strlen(sharename))) {
d_fprintf(stderr, "net usershare add: share name %s contains "
"invalid characters (any of %s)\n",