char *alloc_sub_specified(const char *input_string,
const char *username,
const char *domain,
uid_t uid,
gid_t gid)
{
char *a_string, *ret_string;
char *b, *p, *s;
a_string = SMB_STRDUP(input_string);
if (a_string == NULL) {
DEBUG(0, ("alloc_sub_specified: Out of memory!\n"));
return NULL;
}
for (b = s = a_string; (p = strchr_m(s, '%')); s = a_string + (p - b)) {
b = a_string;
switch (*(p+1)) {
case 'U' :
a_string = realloc_string_sub(a_string, "%U", username);
break;
case 'u' :
a_string = realloc_string_sub(a_string, "%u", username);
break;
case 'G' :
if (gid != -1) {
a_string = realloc_string_sub(a_string, "%G", gidtoname(gid));
} else {
a_string = realloc_string_sub(a_string, "%G", "NO_GROUP");
}
break;
case 'g' :
if (gid != -1) {
a_string = realloc_string_sub(a_string, "%g", gidtoname(gid));
} else {
a_string = realloc_string_sub(a_string, "%g", "NO_GROUP");
}
break;
case 'D' :
a_string = realloc_string_sub(a_string, "%D", domain);
break;
case 'N' :
a_string = realloc_string_sub(a_string, "%N", automount_server(username));
break;
default:
break;
}
p++;
if (a_string == NULL) {
return NULL;
}
}
ret_string = alloc_sub_basic(username, a_string);
SAFE_FREE(a_string);
return ret_string;
}
static void standard_sub_advanced(int snum, const char *user,
const char *connectpath, gid_t gid,
const char *smb_name, char *str, size_t len)
{
char *p, *s, *home;
for (s=str; (p=strchr_m(s, '%'));s=p) {
int l = (int)len - (int)(p-str);
if (l < 0)
l = 0;
switch (*(p+1)) {
case 'N' :
string_sub(p,"%N", automount_server(user),l);
break;
case 'H':
if ((home = get_user_home_dir(user)))
string_sub(p,"%H",home, l);
else
p += 2;
break;
case 'P':
string_sub(p,"%P", connectpath, l);
break;
case 'S':
string_sub(p,"%S", lp_servicename(snum), l);
break;
case 'g':
string_sub(p,"%g", gidtoname(gid), l);
break;
case 'u':
string_sub(p,"%u", user, l);
break;
/* Patch from [email protected] Left the %N (NIS
* server name) in standard_sub_basic as it is
* a feature for logon servers, hence uses the
* username. The %p (NIS server path) code is
* here as it is used instead of the default
* "path =" string in [homes] and so needs the
* service name, not the username. */
case 'p':
string_sub(p,"%p", automount_path(lp_servicename(snum)), l);
break;
case '\0':
p++;
break; /* don't run off the end of the string */
default: p+=2;
break;
}
}
standard_sub_basic(smb_name, str, len);
}
char *alloc_sub_advanced(int snum, const char *user,
const char *connectpath, gid_t gid,
const char *smb_name, const char *str)
{
char *a_string, *ret_string;
char *b, *p, *s, *t, *h;
a_string = strdup(str);
if (a_string == NULL) {
DEBUG(0, ("alloc_sub_specified: Out of memory!\n"));
return NULL;
}
for (b = s = a_string; (p = strchr_m(s, '%')); s = a_string + (p - b)) {
b = t = a_string;
switch (*(p+1)) {
case 'N' :
t = realloc_string_sub(t, "%N", automount_server(user));
break;
case 'H':
if ((h = get_user_home_dir(user)))
t = realloc_string_sub(t, "%H", h);
break;
case 'P':
t = realloc_string_sub(t, "%P", connectpath);
break;
case 'S':
t = realloc_string_sub(t, "%S", lp_servicename(snum));
break;
case 'g':
t = realloc_string_sub(t, "%g", gidtoname(gid));
break;
case 'u':
t = realloc_string_sub(t, "%u", user);
break;
/* Patch from [email protected] Left the %N (NIS
* server name) in standard_sub_basic as it is
* a feature for logon servers, hence uses the
* username. The %p (NIS server path) code is
* here as it is used instead of the default
* "path =" string in [homes] and so needs the
* service name, not the username. */
case 'p':
t = realloc_string_sub(t, "%p", automount_path(lp_servicename(snum)));
break;
default:
break;
}
p++;
if (t == NULL) {
SAFE_FREE(a_string);
return NULL;
}
a_string = t;
}
ret_string = alloc_sub_basic(smb_name, a_string);
SAFE_FREE(a_string);
return ret_string;
}
char *alloc_sub_basic(const char *smb_name, const char *str)
{
char *b, *p, *s, *t, *r, *a_string;
fstring pidstr;
struct passwd *pass;
const char *local_machine_name = get_local_machine_name();
/* workaround to prevent a crash while lookinf at bug #687 */
if ( !str ) {
DEBUG(0,("alloc_sub_basic: NULL source string! This should not happen\n"));
return NULL;
}
a_string = strdup(str);
if (a_string == NULL) {
DEBUG(0, ("alloc_sub_specified: Out of memory!\n"));
return NULL;
}
for (b = s = a_string; (p = strchr_m(s, '%')); s = a_string + (p - b)) {
r = NULL;
b = t = a_string;
switch (*(p+1)) {
case 'U' :
r = strdup_lower(smb_name);
if (r == NULL) goto error;
t = realloc_string_sub(t, "%U", r);
break;
case 'G' :
r = strdup(smb_name);
if (r == NULL) goto error;
if ((pass = Get_Pwnam(r))!=NULL) {
t = realloc_string_sub(t, "%G", gidtoname(pass->pw_gid));
}
break;
case 'D' :
r = strdup_upper(current_user_info.domain);
if (r == NULL) goto error;
t = realloc_string_sub(t, "%D", r);
break;
case 'I' :
t = realloc_string_sub(t, "%I", client_addr());
break;
case 'L' :
if (local_machine_name && *local_machine_name)
t = realloc_string_sub(t, "%L", local_machine_name);
else
t = realloc_string_sub(t, "%L", global_myname());
break;
case 'N':
t = realloc_string_sub(t, "%N", automount_server(smb_name));
break;
case 'M' :
t = realloc_string_sub(t, "%M", client_name());
break;
case 'R' :
t = realloc_string_sub(t, "%R", remote_proto);
break;
case 'T' :
t = realloc_string_sub(t, "%T", timestring(False));
break;
case 'a' :
t = realloc_string_sub(t, "%a", remote_arch);
break;
case 'd' :
slprintf(pidstr,sizeof(pidstr)-1, "%d",(int)sys_getpid());
t = realloc_string_sub(t, "%d", pidstr);
break;
case 'h' :
t = realloc_string_sub(t, "%h", myhostname());
break;
case 'm' :
t = realloc_string_sub(t, "%m", remote_machine);
break;
case 'v' :
t = realloc_string_sub(t, "%v", SAMBA_VERSION_STRING);
break;
case '$' :
t = realloc_expand_env_var(t, p); /* Expand environment variables */
break;
default:
break;
}
p++;
SAFE_FREE(r);
if (t == NULL) goto error;
a_string = t;
}
return a_string;
error:
SAFE_FREE(a_string);
return NULL;
}
