Move next_token_talloc() to top-level.

[amitay/samba.git] / lib / util / util_str.c

diff --git a/lib/util/util_str.c b/lib/util/util_str.c
index 7dcefc90ddab705b87ce0d71ede92f180cc31530..8bf60261056e034171574b4de7ed34de0e0edcd4 100644 (file)
--- a/lib/util/util_str.c
+++ b/lib/util/util_str.c
@@ -153,6 +153,8 @@ _PUBLIC_ const char *str_format_nbt_domain(TALLOC_CTX *mem_ctx, const char *s)
                }
        }
 
+       talloc_set_name_const(ret, ret);
+
        return ret;
 }
 
@@ -330,4 +332,104 @@ _PUBLIC_ void string_replace(char *s, char oldc, char newc)
        }
 }
 
+/**
+ * @file
+ * @brief String utilities.
+ **/
+
+static bool next_token_internal_talloc(TALLOC_CTX *ctx,
+                               const char **ptr,
+                                char **pp_buff,
+                                const char *sep,
+                                bool ltrim)
+{
+       char *s;
+       char *saved_s;
+       char *pbuf;
+       bool quoted;
+       size_t len=1;
+
+       *pp_buff = NULL;
+       if (!ptr) {
+               return(false);
+       }
+
+       s = (char *)*ptr;
+
+       /* default to simple separators */
+       if (!sep) {
+               sep = " \t\n\r";
+       }
+
+       /* find the first non sep char, if left-trimming is requested */
+       if (ltrim) {
+               while (*s && strchr_m(sep,*s)) {
+                       s++;
+               }
+       }
+
+       /* nothing left? */
+       if (!*s) {
+               return false;
+       }
+
+       /* When restarting we need to go from here. */
+       saved_s = s;
+
+       /* Work out the length needed. */
+       for (quoted = false; *s &&
+                       (quoted || !strchr_m(sep,*s)); s++) {
+               if (*s == '\"') {
+                       quoted = !quoted;
+               } else {
+                       len++;
+               }
+       }
+
+       /* We started with len = 1 so we have space for the nul. */
+       *pp_buff = talloc_array(ctx, char, len);
+       if (!*pp_buff) {
+               return false;
+       }
+
+       /* copy over the token */
+       pbuf = *pp_buff;
+       s = saved_s;
+       for (quoted = false; *s &&
+                       (quoted || !strchr_m(sep,*s)); s++) {
+               if ( *s == '\"' ) {
+                       quoted = !quoted;
+               } else {
+                       *pbuf++ = *s;
+               }
+       }
+
+       *ptr = (*s) ? s+1 : s;
+       *pbuf = 0;
+
+       return true;
+}
+
+bool next_token_talloc(TALLOC_CTX *ctx,
+                       const char **ptr,
+                       char **pp_buff,
+                       const char *sep)
+{
+       return next_token_internal_talloc(ctx, ptr, pp_buff, sep, true);
+}
+
+/*
+ * Get the next token from a string, return false if none found.  Handles
+ * double-quotes.  This version does not trim leading separator characters
+ * before looking for a token.
+ */
+
+bool next_token_no_ltrim_talloc(TALLOC_CTX *ctx,
+                       const char **ptr,
+                       char **pp_buff,
+                       const char *sep)
+{
+       return next_token_internal_talloc(ctx, ptr, pp_buff, sep, false);
+}
+