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-rw-r--r--source3/lib/substitute.c162
1 files changed, 66 insertions, 96 deletions
diff --git a/source3/lib/substitute.c b/source3/lib/substitute.c
index dbd382a942..e878ee8cbf 100644
--- a/source3/lib/substitute.c
+++ b/source3/lib/substitute.c
@@ -160,11 +160,9 @@ static char *automount_server(const char *user_name)
/****************************************************************************
Do some standard substitutions in a string.
- len is the length in bytes of the space allowed in string str. If zero means
- don't allow expansions.
****************************************************************************/
-void standard_sub_basic(const char *smb_name, char *str,size_t len)
+void standard_sub_basic(const char *smb_name, char *str)
{
char *p, *s;
fstring pidstr;
@@ -173,10 +171,7 @@ void standard_sub_basic(const char *smb_name, char *str,size_t len)
for (s=str; (p=strchr_m(s, '%'));s=p) {
fstring tmp_str;
- int l = (int)len - (int)(p-str);
-
- if (l < 0)
- l = 0;
+ int l = sizeof(pstring) - (int)(p-str);
switch (*(p+1)) {
case 'U' :
@@ -197,43 +192,26 @@ void standard_sub_basic(const char *smb_name, char *str,size_t len)
strupper(tmp_str);
string_sub(p,"%D", tmp_str,l);
break;
- case 'I' :
- string_sub(p,"%I", client_addr(),l);
- break;
+ case 'I' : string_sub(p,"%I", client_addr(),l); break;
case 'L' :
- if (*local_machine)
+ if (*local_machine) {
string_sub(p,"%L", local_machine,l);
- else
+ } else {
string_sub(p,"%L", global_myname,l);
+ }
break;
- case 'M' :
- string_sub(p,"%M", client_name(),l);
- break;
- case 'R' :
- string_sub(p,"%R", remote_proto,l);
- break;
- case 'T' :
- string_sub(p,"%T", timestring(False),l);
- break;
- case 'a' :
- string_sub(p,"%a", remote_arch,l);
- break;
+ case 'M' : string_sub(p,"%M", client_name(),l); break;
+ case 'R' : string_sub(p,"%R", remote_proto,l); break;
+ case 'T' : string_sub(p,"%T", timestring(False),l); break;
+ case 'a' : string_sub(p,"%a", remote_arch,l); break;
case 'd' :
slprintf(pidstr,sizeof(pidstr)-1, "%d",(int)sys_getpid());
string_sub(p,"%d", pidstr,l);
break;
- case 'h' :
- string_sub(p,"%h", myhostname(),l);
- break;
- case 'm' :
- string_sub(p,"%m", remote_machine,l);
- break;
- case 'v' :
- string_sub(p,"%v", VERSION,l);
- break;
- case '$' :
- p += expand_env_var(p,l);
- break; /* Expand environment variables */
+ case 'h' : string_sub(p,"%h", myhostname(),l); break;
+ case 'm' : string_sub(p,"%m", remote_machine,l); break;
+ case 'v' : string_sub(p,"%v", VERSION,l); break;
+ case '$' : p += expand_env_var(p,l); break; /* Expand environment variables */
case '\0':
p++;
break; /* don't run off the end of the string */
@@ -248,34 +226,30 @@ void standard_sub_basic(const char *smb_name, char *str,size_t len)
Do some standard substitutions in a 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)
+void standard_sub_advanced(int snum, const char *user, const char *connectpath, gid_t gid, const char *smb_name, char *str)
{
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;
-
+ int l = sizeof(pstring) - (int)(p-str);
+
switch (*(p+1)) {
- case 'N' :
- string_sub(p,"%N", automount_server(user),l);
- break;
+ case 'N' : string_sub(p,"%N", automount_server(user),l); break;
case 'H':
- if ((home = get_user_home_dir(user)))
+ if ((home = get_user_home_dir(user))) {
string_sub(p,"%H",home, l);
- else
+ } 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;
@@ -302,46 +276,36 @@ static void standard_sub_advanced(int snum, const char *user,
}
}
- standard_sub_basic(smb_name, str, len);
+ standard_sub_basic(smb_name, str);
}
-const char *standard_sub_specified(TALLOC_CTX *mem_ctx, const char *input_string,
- const char *username,
- const char *domain,
- uid_t uid,
- gid_t gid)
+/****************************************************************************
+ Do some standard substitutions in a string.
+****************************************************************************/
+
+void standard_sub_conn(connection_struct *conn, char *str)
{
- pstring input_pstring;
- char *p, *s;
+ standard_sub_advanced(SNUM(conn), conn->user, conn->connectpath, conn->gid, current_user_info.smb_name, str);
+}
- pstrcpy(input_pstring, input_string);
-
- for (s=input_pstring; (p=strchr_m(s, '%')); s=p) {
+/****************************************************************************
+ Like standard_sub but for a homes share where snum still points to the [homes]
+ share. No user specific snum created yet so servicename should be the username.
+****************************************************************************/
+
+void standard_sub_home(int snum, const char *user, char *str)
+{
+ char *p, *s;
- int l = sizeof(pstring) - (int)(p-input_pstring);
+ for (s=str; (p=strchr_m(s, '%'));s=p) {
+ int l = sizeof(pstring) - (int)(p-str);
switch (*(p+1)) {
- case 'U' :
- string_sub(p,"%U",username,l);
- break;
- case 'u' :
- string_sub(p,"%u",username,l);
- break;
- case 'G' :
- case 'g' :
- if (gid != -1) {
- string_sub(p,"%G",gidtoname(gid),l);
- string_sub(p,"%g",gidtoname(gid),l);
- } else {
- string_sub(p,"%G","NO_GROUP",l);
- string_sub(p,"%g","NO_GROUP",l);
- }
- break;
- case 'D' :
- string_sub(p,"%D", domain,l);
+ case 'S':
+ string_sub(p,"%S", user, l);
break;
- case 'N' :
- string_sub(p,"%N", automount_server(username),l);
+ case 'p':
+ string_sub(p,"%p", automount_path(user), l);
break;
case '\0':
p++;
@@ -352,25 +316,14 @@ const char *standard_sub_specified(TALLOC_CTX *mem_ctx, const char *input_string
}
}
- standard_sub_basic(username, input_pstring, sizeof(pstring));
- return talloc_strdup(mem_ctx, input_pstring);
-}
-
-/****************************************************************************
- Do some standard substitutions in a string.
-****************************************************************************/
-
-void standard_sub_conn(connection_struct *conn, char *str, size_t len)
-{
- standard_sub_advanced(SNUM(conn), conn->user, conn->connectpath,
- conn->gid, current_user_info.smb_name, str, len);
+ standard_sub_advanced(snum, user, "", -1, current_user_info.smb_name, str);
}
/****************************************************************************
Like standard_sub but by snum.
****************************************************************************/
-void standard_sub_snum(int snum, char *str, size_t len)
+void standard_sub_snum(int snum, char *str)
{
extern struct current_user current_user;
static uid_t cached_uid = -1;
@@ -383,6 +336,23 @@ void standard_sub_snum(int snum, char *str, size_t len)
cached_uid = current_user.uid;
}
- standard_sub_advanced(snum, cached_user, "", -1,
- current_user_info.smb_name, str, len);
+ standard_sub_advanced(snum, cached_user, "", -1, current_user_info.smb_name, str);
+}
+
+/*******************************************************************
+ Substitute strings with useful parameters.
+********************************************************************/
+
+void standard_sub_vuser(char *str, user_struct *vuser)
+{
+ standard_sub_advanced(-1, vuser->user.unix_name, "", -1, current_user_info.smb_name, str);
+}
+
+/*******************************************************************
+ Substitute strings with useful parameters.
+********************************************************************/
+
+void standard_sub_vsnum(char *str, user_struct *vuser, int snum)
+{
+ standard_sub_advanced(snum, vuser->user.unix_name, "", -1, current_user_info.smb_name, str);
}
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