avrdude base

xs/src/avrdude/config.c

@@ -0,0 +1,349 @@
+/*
+ * avrdude - A Downloader/Uploader for AVR device programmers
+ * Copyright (C) 2000-2004  Brian S. Dean <bsd@bsdhome.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* $Id$ */
+
+#include "ac_cfg.h"
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+
+#include "avrdude.h"
+#include "libavrdude.h"
+#include "config.h"
+
+#include "config_gram.h"
+
+char default_programmer[MAX_STR_CONST];
+char default_parallel[PATH_MAX];
+char default_serial[PATH_MAX];
+double default_bitclock;
+int default_safemode;
+
+char string_buf[MAX_STR_CONST];
+char *string_buf_ptr;
+
+LISTID       string_list;
+LISTID       number_list;
+PROGRAMMER * current_prog;
+AVRPART    * current_part;
+AVRMEM     * current_mem;
+LISTID       part_list;
+LISTID       programmers;
+
+int    lineno;
+const char * infile;
+
+extern char * yytext;
+
+#define DEBUG 0
+
+void cleanup_config(void)
+{
+  ldestroy_cb(part_list, (void(*)(void*))avr_free_part);
+  ldestroy_cb(programmers, (void(*)(void*))pgm_free);
+  ldestroy_cb(string_list, (void(*)(void*))free_token);
+  ldestroy_cb(number_list, (void(*)(void*))free_token);
+}
+
+int init_config(void)
+{
+  string_list  = lcreat(NULL, 0);
+  number_list  = lcreat(NULL, 0);
+  current_prog = NULL;
+  current_part = NULL;
+  current_mem  = NULL;
+  part_list    = lcreat(NULL, 0);
+  programmers  = lcreat(NULL, 0);
+
+  lineno       = 1;
+  infile       = NULL;
+
+  return 0;
+}
+
+
+
+int yywrap()
+{
+  return 1;
+}
+
+
+int yyerror(char * errmsg, ...)
+{
+  va_list args;
+
+  char message[512];
+
+  va_start(args, errmsg);
+
+  vsnprintf(message, sizeof(message), errmsg, args);
+  avrdude_message(MSG_INFO, "%s: error at %s:%d: %s\n", progname, infile, lineno, message);
+
+  va_end(args);
+
+  return 0;
+}
+
+
+int yywarning(char * errmsg, ...)
+{
+  va_list args;
+
+  char message[512];
+
+  va_start(args, errmsg);
+
+  vsnprintf(message, sizeof(message), errmsg, args);
+  avrdude_message(MSG_INFO, "%s: warning at %s:%d: %s\n", progname, infile, lineno, message);
+
+  va_end(args);
+
+  return 0;
+}
+
+
+TOKEN * new_token(int primary)
+{
+  TOKEN * tkn;
+
+  tkn = (TOKEN *)malloc(sizeof(TOKEN));
+  if (tkn == NULL) {
+    yyerror("new_token(): out of memory");
+    return NULL;
+  }
+
+  memset(tkn, 0, sizeof(TOKEN));
+
+  tkn->primary = primary;
+
+  return tkn;
+}
+
+
+void free_token(TOKEN * tkn)
+{
+  if (tkn) {
+    switch (tkn->value.type) {
+      case V_STR:
+        if (tkn->value.string)
+          free(tkn->value.string);
+        tkn->value.string = NULL;
+        break;
+    }
+
+    free(tkn);
+  }
+}
+
+
+void free_tokens(int n, ...)
+{
+  TOKEN * t;
+  va_list ap;
+
+  va_start(ap, n);
+  while (n--) {
+    t = va_arg(ap, TOKEN *);
+    free_token(t);
+  }
+  va_end(ap);
+}
+
+
+
+TOKEN * number(char * text)
+{
+  struct token_t * tkn;
+
+  tkn = new_token(TKN_NUMBER);
+  if (tkn == NULL) {
+      return NULL; /* yyerror already called */
+  }
+  tkn->value.type   = V_NUM;
+  tkn->value.number = atoi(text);
+
+#if DEBUG
+  avrdude_message(MSG_INFO, "NUMBER(%d)\n", tkn->value.number);
+#endif
+
+  return tkn;
+}
+
+TOKEN * number_real(char * text)
+{
+  struct token_t * tkn;
+
+  tkn = new_token(TKN_NUMBER);
+  tkn->value.type   = V_NUM_REAL;
+  tkn->value.number_real = atof(text);
+
+#if DEBUG
+  avrdude_message(MSG_INFO, "NUMBER(%g)\n", tkn->value.number_real);
+#endif
+
+  return tkn;
+}
+
+TOKEN * hexnumber(char * text)
+{
+  struct token_t * tkn;
+  char * e;
+
+  tkn = new_token(TKN_NUMBER);
+  if (tkn == NULL) {
+      return NULL; /* yyerror already called */
+  }
+  tkn->value.type   = V_NUM;
+  tkn->value.number = strtoul(text, &e, 16);
+  if ((e == text) || (*e != 0)) {
+    yyerror("can't scan hex number \"%s\"", text);
+    return NULL;
+  }
+  
+#if DEBUG
+  avrdude_message(MSG_INFO, "HEXNUMBER(%g)\n", tkn->value.number);
+#endif
+
+  return tkn;
+}
+
+
+TOKEN * string(char * text)
+{
+  struct token_t * tkn;
+  int len;
+
+  tkn = new_token(TKN_STRING);
+  if (tkn == NULL) {
+      return NULL; /* yyerror already called */
+  }
+
+  len = strlen(text);
+
+  tkn->value.type   = V_STR;
+  tkn->value.string = (char *) malloc(len+1);
+  if (tkn->value.string == NULL) {
+    yyerror("string(): out of memory");
+    return NULL;
+  }
+  strcpy(tkn->value.string, text);
+
+#if DEBUG
+  avrdude_message(MSG_INFO, "STRING(%s)\n", tkn->value.string);
+#endif
+
+  return tkn;
+}
+
+
+TOKEN * keyword(int primary)
+{
+  struct token_t * tkn;
+
+  tkn = new_token(primary);
+
+  return tkn;
+}
+
+
+void print_token(TOKEN * tkn)
+{
+  if (!tkn)
+    return;
+
+  avrdude_message(MSG_INFO, "token = %d = ", tkn->primary);
+  switch (tkn->value.type) {
+    case V_NUM:
+      avrdude_message(MSG_INFO, "NUMBER, value=%d", tkn->value.number);
+      break;
+
+    case V_NUM_REAL:
+      avrdude_message(MSG_INFO, "NUMBER, value=%g", tkn->value.number_real);
+      break;
+
+    case V_STR:
+      avrdude_message(MSG_INFO, "STRING, value=%s", tkn->value.string);
+      break;
+
+    default:
+      avrdude_message(MSG_INFO, "<other>");
+      break;
+  }
+
+  avrdude_message(MSG_INFO, "\n");
+}
+
+
+void pyytext(void)
+{
+#if DEBUG
+  avrdude_message(MSG_INFO, "TOKEN: \"%s\"\n", yytext);
+#endif
+}
+
+
+char * dup_string(const char * str)
+{
+  char * s;
+
+  s = strdup(str);
+  if (s == NULL) {
+    yyerror("dup_string(): out of memory");
+    return NULL;
+  }
+
+  return s;
+}
+
+#ifdef HAVE_YYLEX_DESTROY
+/* reset lexer and free any allocated memory */
+extern int yylex_destroy(void);
+#endif
+
+int read_config(const char * file)
+{
+  FILE * f;
+  int r;
+
+  f = fopen(file, "r");
+  if (f == NULL) {
+    avrdude_message(MSG_INFO, "%s: can't open config file \"%s\": %s\n",
+            progname, file, strerror(errno));
+    return -1;
+  }
+
+  lineno = 1;
+  infile = file;
+  yyin   = f;
+
+  r = yyparse();
+
+#ifdef HAVE_YYLEX_DESTROY
+  /* reset lexer and free any allocated memory */
+  yylex_destroy();
+#endif
+
+  fclose(f);
+
+  return r;
+}