if (need > (*buf)->len && (max_len == 0 || (*buf)->len < max_len) ) {
if (max_len && max_len < need) /* truncate as needed */
need = max_len;
-
- /* We can only realloc malloc'ed space. */
- if ((*buf)->ts == DS_ALLOCA || (*buf)->ts == DS_STATIC)
- return AST_DYNSTR_BUILD_FAILED;
- *buf = ast_realloc(*buf, need + sizeof(struct ast_str));
- if (*buf == NULL) /* XXX watch out, we leak memory here */
+ else if (max_len == 0) /* if unbounded, give more room for next time */
+ need += 16 + need/4;
+ if (0) /* debugging */
+ ast_verbose("extend from %d to %d\n", (int)(*buf)->len, need);
+ if (ast_str_make_space(buf, need)) {
+ ast_verbose("failed to extend from %d to %d\n", (int)(*buf)->len, need);
return AST_DYNSTR_BUILD_FAILED;
- (*buf)->len = need;
-
+ }
(*buf)->str[offset] = '\0'; /* Truncate the partial write. */
- if ((*buf)->ts != DS_ALLOCA)
- pthread_setspecific((*buf)->ts->key, *buf);
-
/* va_end() and va_start() must be done before calling
* vsnprintf() again. */
return AST_DYNSTR_BUILD_RETRY;