From 5e61585d76ae77fd5e9e96ebabb57afa4d74880d Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 14:06:34 +0200 Subject: Adding upstream version 3.5.24. Signed-off-by: Daniel Baumann --- src/global/tok822_node.c | 79 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 src/global/tok822_node.c (limited to 'src/global/tok822_node.c') diff --git a/src/global/tok822_node.c b/src/global/tok822_node.c new file mode 100644 index 0000000..f02b574 --- /dev/null +++ b/src/global/tok822_node.c @@ -0,0 +1,79 @@ +/*++ +/* NAME +/* tok822_node 3 +/* SUMMARY +/* token memory management +/* SYNOPSIS +/* #include +/* +/* TOK822 *tok822_alloc(type, strval) +/* int type; +/* const char *strval; +/* +/* TOK822 *tok822_free(tp) +/* TOK822 *tp; +/* DESCRIPTION +/* This module implements memory management for token +/* structures. A distinction is made between single-character +/* tokens that have no string value, and string-valued tokens. +/* +/* tok822_alloc() allocates memory for a token structure of +/* the named type, and initializes it properly. In case of +/* a single-character token, no string memory is allocated. +/* Otherwise, \fIstrval\fR is a null pointer or provides +/* string data to initialize the token with. +/* +/* tok822_free() releases the memory used for the specified token +/* and conveniently returns a null pointer value. +/* LICENSE +/* .ad +/* .fi +/* The Secure Mailer license must be distributed with this software. +/* AUTHOR(S) +/* Wietse Venema +/* IBM T.J. Watson Research +/* P.O. Box 704 +/* Yorktown Heights, NY 10598, USA +/*--*/ + +/* System library. */ + +#include +#include + +/* Utility library. */ + +#include +#include + +/* Global library. */ + +#include "tok822.h" + +/* tok822_alloc - allocate and initialize token */ + +TOK822 *tok822_alloc(int type, const char *strval) +{ + TOK822 *tp; + +#define CONTAINER_TOKEN(x) \ + ((x) == TOK822_ADDR || (x) == TOK822_STARTGRP) + + tp = (TOK822 *) mymalloc(sizeof(*tp)); + tp->type = type; + tp->next = tp->prev = tp->head = tp->tail = tp->owner = 0; + tp->vstr = (type < TOK822_MINTOK || CONTAINER_TOKEN(type) ? 0 : + strval == 0 ? vstring_alloc(10) : + vstring_strcpy(vstring_alloc(strlen(strval) + 1), strval)); + return (tp); +} + +/* tok822_free - destroy token */ + +TOK822 *tok822_free(TOK822 *tp) +{ + if (tp->vstr) + vstring_free(tp->vstr); + myfree((void *) tp); + return (0); +} -- cgit v1.2.3