352 lines
6.2 KiB
C
352 lines
6.2 KiB
C
/*
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* avrdude - A Downloader/Uploader for AVR device programmers
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* Copyright (C) 2000-2004 Brian S. Dean <bsd@bsdhome.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* $Id$ */
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#include "ac_cfg.h"
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <string.h>
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#include "avrdude.h"
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#include "libavrdude.h"
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#include "config.h"
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#include "config_gram.h"
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char default_programmer[MAX_STR_CONST];
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char default_parallel[PATH_MAX];
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char default_serial[PATH_MAX];
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double default_bitclock;
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int default_safemode;
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char string_buf[MAX_STR_CONST];
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char *string_buf_ptr;
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LISTID string_list;
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LISTID number_list;
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PROGRAMMER * current_prog;
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AVRPART * current_part;
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AVRMEM * current_mem;
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LISTID part_list;
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LISTID programmers;
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int lineno;
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const char * infile;
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extern char * yytext;
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#define DEBUG 0
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void cleanup_config(void)
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{
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ldestroy_cb(part_list, (void(*)(void*))avr_free_part);
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ldestroy_cb(programmers, (void(*)(void*))pgm_free);
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ldestroy_cb(string_list, (void(*)(void*))free_token);
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ldestroy_cb(number_list, (void(*)(void*))free_token);
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}
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int init_config(void)
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{
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string_list = lcreat(NULL, 0);
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number_list = lcreat(NULL, 0);
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current_prog = NULL;
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current_part = NULL;
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current_mem = NULL;
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part_list = lcreat(NULL, 0);
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programmers = lcreat(NULL, 0);
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lineno = 1;
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infile = NULL;
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return 0;
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}
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int yywrap()
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{
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return 1;
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}
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int yyerror(char * errmsg, ...)
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{
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va_list args;
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char message[512];
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va_start(args, errmsg);
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vsnprintf(message, sizeof(message), errmsg, args);
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avrdude_message(MSG_INFO, "%s: error at %s:%d: %s\n", progname, infile, lineno, message);
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va_end(args);
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return 0;
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}
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int yywarning(char * errmsg, ...)
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{
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va_list args;
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char message[512];
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va_start(args, errmsg);
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vsnprintf(message, sizeof(message), errmsg, args);
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avrdude_message(MSG_INFO, "%s: warning at %s:%d: %s\n", progname, infile, lineno, message);
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va_end(args);
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return 0;
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}
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TOKEN * new_token(int primary)
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{
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TOKEN * tkn;
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tkn = (TOKEN *)malloc(sizeof(TOKEN));
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if (tkn == NULL) {
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yyerror("new_token(): out of memory");
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return NULL;
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}
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memset(tkn, 0, sizeof(TOKEN));
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tkn->primary = primary;
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return tkn;
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}
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void free_token(TOKEN * tkn)
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{
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if (tkn) {
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switch (tkn->value.type) {
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case V_STR:
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if (tkn->value.string)
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free(tkn->value.string);
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tkn->value.string = NULL;
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break;
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}
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free(tkn);
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}
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}
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void free_tokens(int n, ...)
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{
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TOKEN * t;
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va_list ap;
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va_start(ap, n);
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while (n--) {
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t = va_arg(ap, TOKEN *);
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free_token(t);
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}
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va_end(ap);
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}
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TOKEN * number(char * text)
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{
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struct token_t * tkn;
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tkn = new_token(TKN_NUMBER);
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if (tkn == NULL) {
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return NULL; /* yyerror already called */
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}
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tkn->value.type = V_NUM;
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tkn->value.number = atoi(text);
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#if DEBUG
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avrdude_message(MSG_INFO, "NUMBER(%d)\n", tkn->value.number);
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#endif
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return tkn;
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}
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TOKEN * number_real(char * text)
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{
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struct token_t * tkn;
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tkn = new_token(TKN_NUMBER);
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tkn->value.type = V_NUM_REAL;
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tkn->value.number_real = atof(text);
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#if DEBUG
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avrdude_message(MSG_INFO, "NUMBER(%g)\n", tkn->value.number_real);
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#endif
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return tkn;
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}
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TOKEN * hexnumber(char * text)
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{
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struct token_t * tkn;
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char * e;
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tkn = new_token(TKN_NUMBER);
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if (tkn == NULL) {
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return NULL; /* yyerror already called */
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}
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tkn->value.type = V_NUM;
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tkn->value.number = strtoul(text, &e, 16);
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if ((e == text) || (*e != 0)) {
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yyerror("can't scan hex number \"%s\"", text);
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free_token(tkn);
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return NULL;
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}
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#if DEBUG
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avrdude_message(MSG_INFO, "HEXNUMBER(%g)\n", tkn->value.number);
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#endif
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return tkn;
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}
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TOKEN * string(char * text)
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{
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struct token_t * tkn;
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int len;
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tkn = new_token(TKN_STRING);
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if (tkn == NULL) {
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return NULL; /* yyerror already called */
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}
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len = strlen(text);
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tkn->value.type = V_STR;
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tkn->value.string = (char *) malloc(len+1);
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if (tkn->value.string == NULL) {
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yyerror("string(): out of memory");
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free_token(tkn);
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return NULL;
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}
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strcpy(tkn->value.string, text);
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#if DEBUG
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avrdude_message(MSG_INFO, "STRING(%s)\n", tkn->value.string);
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#endif
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return tkn;
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}
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TOKEN * keyword(int primary)
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{
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struct token_t * tkn;
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tkn = new_token(primary);
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return tkn;
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}
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void print_token(TOKEN * tkn)
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{
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if (!tkn)
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return;
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avrdude_message(MSG_INFO, "token = %d = ", tkn->primary);
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switch (tkn->value.type) {
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case V_NUM:
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avrdude_message(MSG_INFO, "NUMBER, value=%d", tkn->value.number);
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break;
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case V_NUM_REAL:
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avrdude_message(MSG_INFO, "NUMBER, value=%g", tkn->value.number_real);
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break;
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case V_STR:
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avrdude_message(MSG_INFO, "STRING, value=%s", tkn->value.string);
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break;
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default:
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avrdude_message(MSG_INFO, "<other>");
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break;
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}
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avrdude_message(MSG_INFO, "\n");
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}
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void pyytext(void)
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{
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#if DEBUG
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avrdude_message(MSG_INFO, "TOKEN: \"%s\"\n", yytext);
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#endif
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}
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char * dup_string(const char * str)
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{
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char * s;
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s = strdup(str);
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if (s == NULL) {
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yyerror("dup_string(): out of memory");
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return NULL;
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}
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return s;
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}
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#ifdef HAVE_YYLEX_DESTROY
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/* reset lexer and free any allocated memory */
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extern int yylex_destroy(void);
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#endif
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int read_config(const char * file)
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{
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FILE * f;
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int r;
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f = fopen(file, "r");
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if (f == NULL) {
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avrdude_message(MSG_INFO, "%s: can't open config file \"%s\": %s\n",
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progname, file, strerror(errno));
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return -1;
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}
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lineno = 1;
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infile = file;
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yyin = f;
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r = yyparse();
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#ifdef HAVE_YYLEX_DESTROY
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/* reset lexer and free any allocated memory */
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yylex_destroy();
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#endif
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fclose(f);
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return r;
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}
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