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/* |
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* Copyright (C) 2005-2007 Anders Gavare. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* |
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* $Id: emul_parse.c,v 1.46 2007/06/15 17:02:38 debug Exp $ |
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* |
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* Set up an emulation by parsing a config file. |
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* |
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* TODO: REWRITE THIS FROM SCRATCH! :-) |
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*/ |
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|
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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|
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#include "diskimage.h" |
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#include "emul.h" |
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#include "machine.h" |
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#include "misc.h" |
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#include "net.h" |
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|
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|
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#define is_word_char(ch) ( \ |
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(ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || \ |
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ch == '_' || ch == '$' || (ch >= '0' && ch <= '9') ) |
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|
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#define MAX_WORD_LEN 200 |
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|
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#define EXPECT_WORD 1 |
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#define EXPECT_LEFT_PARENTHESIS 2 |
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#define EXPECT_RIGHT_PARENTHESIS 4 |
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|
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static int parenthesis_level = 0; |
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|
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|
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/* |
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* read_one_word(): |
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* |
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* Reads the file f until it has read a complete word. Whitespace is ignored, |
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* and also any exclamation mark ('!') and anything following an exclamation |
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* mark on a line. |
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* |
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* Used internally by emul_parse_config(). |
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*/ |
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static void read_one_word(FILE *f, char *buf, int buflen, int *line, |
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int expect) |
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{ |
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int ch; |
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int done = 0; |
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int curlen = 0; |
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int in_word = 0; |
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|
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while (!done) { |
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if (curlen >= buflen - 1) |
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break; |
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|
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ch = fgetc(f); |
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if (ch == EOF) |
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break; |
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|
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if (in_word) { |
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if (is_word_char(ch)) { |
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buf[curlen++] = ch; |
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if (curlen == buflen - 1) |
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done = 1; |
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continue; |
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} else { |
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if (ungetc(ch, f) == EOF) { |
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fatal("ungetc() failed?\n"); |
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exit(1); |
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} |
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break; |
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} |
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} |
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|
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if (ch == '\n') { |
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(*line) ++; |
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continue; |
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} |
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|
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if (ch == '\r') |
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continue; |
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|
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if (ch == '!') { |
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/* Skip until newline: */ |
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while (ch != '\n' && ch != EOF) |
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ch = fgetc(f); |
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if (ch == '\n') |
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(*line) ++; |
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continue; |
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} |
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|
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if (ch == '{') { |
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int depth = 1; |
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|
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/* Skip until '}': */ |
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while (depth > 0) { |
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ch = fgetc(f); |
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if (ch == '\n') |
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(*line) ++; |
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if (ch == '{') |
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depth ++; |
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if (ch == '}') |
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depth --; |
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if (ch == EOF) { |
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fatal("line %i: unexpected EOF inside" |
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" a nested comment\n", *line); |
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exit(1); |
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} |
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} |
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continue; |
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} |
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|
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/* Whitespace? */ |
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if (ch <= ' ') |
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continue; |
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|
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if (ch == '"' || ch == '\'') { |
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/* This is a quoted word. */ |
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int start_ch = ch; |
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|
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if (expect & EXPECT_LEFT_PARENTHESIS) { |
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fatal("unexpected character '%c', line %i\n", |
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ch, *line); |
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exit(1); |
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} |
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|
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while (curlen < buflen - 1) { |
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ch = fgetc(f); |
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if (ch == '\n') { |
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fatal("line %i: newline inside" |
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" quotes?\n", *line); |
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exit(1); |
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} |
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if (ch == EOF) { |
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fatal("line %i: EOF inside a quoted" |
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" string?\n", *line); |
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exit(1); |
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} |
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if (ch == start_ch) |
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break; |
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buf[curlen++] = ch; |
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} |
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break; |
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} |
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|
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if ((expect & EXPECT_WORD) && is_word_char(ch)) { |
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buf[curlen++] = ch; |
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in_word = 1; |
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if (curlen == buflen - 1) |
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done = 1; |
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} else { |
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if ((expect & EXPECT_LEFT_PARENTHESIS) && ch == '(') { |
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parenthesis_level ++; |
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buf[curlen++] = ch; |
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break; |
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} |
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if ((expect & EXPECT_RIGHT_PARENTHESIS) && ch == ')') { |
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parenthesis_level --; |
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buf[curlen++] = ch; |
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break; |
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} |
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|
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fatal("unexpected character '%c', line %i\n", |
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ch, *line); |
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exit(1); |
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} |
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} |
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|
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buf[curlen] = '\0'; |
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} |
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|
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|
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#define PARSESTATE_NONE 0 |
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#define PARSESTATE_EMUL 1 |
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#define PARSESTATE_NET 2 |
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#define PARSESTATE_MACHINE 3 |
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|
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static char cur_net_ipv4net[50]; |
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static char cur_net_ipv4len[50]; |
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static char cur_net_local_port[10]; |
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#define MAX_N_REMOTE 20 |
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#define MAX_REMOTE_LEN 100 |
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static char *cur_net_remote[MAX_N_REMOTE]; |
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static int cur_net_n_remote; |
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|
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static char cur_machine_name[50]; |
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static char cur_machine_cpu[50]; |
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static char cur_machine_type[50]; |
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static char cur_machine_subtype[50]; |
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static char cur_machine_bootname[150]; |
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static char cur_machine_bootarg[250]; |
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static char cur_machine_slowsi[10]; |
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static char cur_machine_prom_emulation[10]; |
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static char cur_machine_use_x11[10]; |
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static char cur_machine_x11_scaledown[10]; |
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static char cur_machine_byte_order[20]; |
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static char cur_machine_random_mem[10]; |
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static char cur_machine_random_cpu[10]; |
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static char cur_machine_force_netboot[10]; |
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static char cur_machine_start_paused[10]; |
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static char cur_machine_ncpus[10]; |
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static char cur_machine_n_gfx_cards[10]; |
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static char cur_machine_serial_nr[10]; |
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static char cur_machine_emulated_hz[10]; |
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static char cur_machine_memory[10]; |
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#define MAX_N_LOAD 15 |
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#define MAX_LOAD_LEN 2000 |
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static char *cur_machine_load[MAX_N_LOAD]; |
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static int cur_machine_n_load; |
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#define MAX_N_DISK 10 |
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#define MAX_DISK_LEN 2000 |
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static char *cur_machine_disk[MAX_N_DISK]; |
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static int cur_machine_n_disk; |
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#define MAX_N_DEVICE 20 |
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#define MAX_DEVICE_LEN 400 |
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static char *cur_machine_device[MAX_N_DISK]; |
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static int cur_machine_n_device; |
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#define MAX_N_X11_DISP 5 |
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#define MAX_X11_DISP_LEN 1000 |
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static char *cur_machine_x11_disp[MAX_N_X11_DISP]; |
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static int cur_machine_n_x11_disp; |
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|
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#define WORD(w,var) { \ |
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if (strcmp(word, w) == 0) { \ |
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read_one_word(f, word, maxbuflen, \ |
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line, EXPECT_LEFT_PARENTHESIS); \ |
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read_one_word(f, var, sizeof(var), \ |
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line, EXPECT_WORD); \ |
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read_one_word(f, word, maxbuflen, \ |
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line, EXPECT_RIGHT_PARENTHESIS); \ |
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return; \ |
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} \ |
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} |
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|
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static void parse__machine(struct emul *e, FILE *f, int *in_emul, int *line, |
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int *parsestate, char *word, size_t maxbuflen); |
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|
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|
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/* |
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* parse_on_off(): |
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* |
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* Returns 1 for "on", "yes", "enable", or "1". |
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* Returns 0 for "off", "no", "disable", or "0". |
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* Prints a fatal warning and exit()s for other values. |
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*/ |
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int parse_on_off(char *s) |
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{ |
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if (strcasecmp(s, "on") == 0 || strcasecmp(s, "yes") == 0 || |
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strcasecmp(s, "enable") == 0 || strcasecmp(s, "1") == 0) |
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return 1; |
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if (strcasecmp(s, "off") == 0 || strcasecmp(s, "no") == 0 || |
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strcasecmp(s, "disable") == 0 || strcasecmp(s, "0") == 0) |
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return 0; |
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|
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fprintf(stderr, "parse_on_off(): WARNING: unknown value '%s'\n", s); |
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|
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return 0; |
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} |
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|
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|
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/* |
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* parse__emul(): |
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* |
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* name, net, machine |
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*/ |
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static void parse__emul(struct emul *e, FILE *f, int *in_emul, int *line, |
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int *parsestate, char *word, size_t maxbuflen) |
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{ |
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if (word[0] == ')') { |
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*parsestate = PARSESTATE_NONE; |
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return; |
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} |
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|
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if (strcmp(word, "name") == 0) { |
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char tmp[200]; |
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read_one_word(f, word, maxbuflen, |
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line, EXPECT_LEFT_PARENTHESIS); |
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read_one_word(f, tmp, sizeof(tmp), line, EXPECT_WORD); |
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read_one_word(f, word, maxbuflen, |
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line, EXPECT_RIGHT_PARENTHESIS); |
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if (e->name != NULL) { |
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free(e->name); |
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e->name = NULL; |
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} |
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CHECK_ALLOCATION(e->name = strdup(tmp)); |
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debug("name: \"%s\"\n", e->name); |
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return; |
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} |
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|
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if (strcmp(word, "net") == 0) { |
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*parsestate = PARSESTATE_NET; |
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read_one_word(f, word, maxbuflen, |
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line, EXPECT_LEFT_PARENTHESIS); |
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|
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/* Default net: */ |
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strlcpy(cur_net_ipv4net, NET_DEFAULT_IPV4_MASK, |
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sizeof(cur_net_ipv4net)); |
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snprintf(cur_net_ipv4len, sizeof(cur_net_ipv4len), "%i", |
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NET_DEFAULT_IPV4_LEN); |
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strlcpy(cur_net_local_port, "", sizeof(cur_net_local_port)); |
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cur_net_n_remote = 0; |
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return; |
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} |
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|
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if (strcmp(word, "machine") == 0) { |
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*parsestate = PARSESTATE_MACHINE; |
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read_one_word(f, word, maxbuflen, |
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line, EXPECT_LEFT_PARENTHESIS); |
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|
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/* A "zero state": */ |
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cur_machine_name[0] = '\0'; |
336 |
cur_machine_cpu[0] = '\0'; |
337 |
cur_machine_type[0] = '\0'; |
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cur_machine_subtype[0] = '\0'; |
339 |
cur_machine_bootname[0] = '\0'; |
340 |
cur_machine_bootarg[0] = '\0'; |
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cur_machine_n_load = 0; |
342 |
cur_machine_n_disk = 0; |
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cur_machine_n_device = 0; |
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cur_machine_n_x11_disp = 0; |
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cur_machine_slowsi[0] = '\0'; |
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cur_machine_prom_emulation[0] = '\0'; |
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cur_machine_use_x11[0] = '\0'; |
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cur_machine_x11_scaledown[0] = '\0'; |
349 |
cur_machine_byte_order[0] = '\0'; |
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cur_machine_random_mem[0] = '\0'; |
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cur_machine_random_cpu[0] = '\0'; |
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cur_machine_force_netboot[0] = '\0'; |
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cur_machine_start_paused[0] = '\0'; |
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cur_machine_ncpus[0] = '\0'; |
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cur_machine_n_gfx_cards[0] = '\0'; |
356 |
cur_machine_serial_nr[0] = '\0'; |
357 |
cur_machine_emulated_hz[0] = '\0'; |
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cur_machine_memory[0] = '\0'; |
359 |
return; |
360 |
} |
361 |
|
362 |
fatal("line %i: not expecting '%s' in an 'emul' section\n", |
363 |
*line, word); |
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exit(1); |
365 |
} |
366 |
|
367 |
|
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/* |
369 |
* parse__net(): |
370 |
* |
371 |
* Simple words: ipv4net, ipv4len, local_port |
372 |
* |
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* Complex: add_remote |
374 |
* |
375 |
* TODO: more words? for example an option to disable the gateway? that would |
376 |
* have to be implemented correctly in src/net.c first. |
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*/ |
378 |
static void parse__net(struct emul *e, FILE *f, int *in_emul, int *line, |
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int *parsestate, char *word, size_t maxbuflen) |
380 |
{ |
381 |
int i; |
382 |
|
383 |
if (word[0] == ')') { |
384 |
/* Finished with the 'net' section. Let's create the net: */ |
385 |
if (e->net != NULL) { |
386 |
fatal("line %i: more than one net isn't really " |
387 |
"supported yet\n", *line); |
388 |
exit(1); |
389 |
} |
390 |
|
391 |
if (!cur_net_local_port[0]) |
392 |
strlcpy(cur_net_local_port, "0", |
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sizeof(cur_net_local_port)); |
394 |
|
395 |
e->net = net_init(e, NET_INIT_FLAG_GATEWAY, |
396 |
cur_net_ipv4net, atoi(cur_net_ipv4len), |
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cur_net_remote, cur_net_n_remote, |
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atoi(cur_net_local_port), NULL); |
399 |
|
400 |
if (e->net == NULL) { |
401 |
fatal("line %i: fatal error: could not create" |
402 |
" the net (?)\n", *line); |
403 |
exit(1); |
404 |
} |
405 |
|
406 |
for (i=0; i<cur_net_n_remote; i++) { |
407 |
free(cur_net_remote[i]); |
408 |
cur_net_remote[i] = NULL; |
409 |
} |
410 |
|
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*parsestate = PARSESTATE_EMUL; |
412 |
return; |
413 |
} |
414 |
|
415 |
WORD("ipv4net", cur_net_ipv4net); |
416 |
WORD("ipv4len", cur_net_ipv4len); |
417 |
WORD("local_port", cur_net_local_port); |
418 |
|
419 |
if (strcmp(word, "add_remote") == 0) { |
420 |
read_one_word(f, word, maxbuflen, |
421 |
line, EXPECT_LEFT_PARENTHESIS); |
422 |
if (cur_net_n_remote >= MAX_N_REMOTE) { |
423 |
fprintf(stderr, "too many remote networks\n"); |
424 |
exit(1); |
425 |
} |
426 |
|
427 |
CHECK_ALLOCATION(cur_net_remote[cur_net_n_remote] = |
428 |
malloc(MAX_REMOTE_LEN)); |
429 |
read_one_word(f, cur_net_remote[cur_net_n_remote], |
430 |
MAX_REMOTE_LEN, line, EXPECT_WORD); |
431 |
cur_net_n_remote ++; |
432 |
read_one_word(f, word, maxbuflen, line, |
433 |
EXPECT_RIGHT_PARENTHESIS); |
434 |
return; |
435 |
} |
436 |
|
437 |
fatal("line %i: not expecting '%s' in a 'net' section\n", *line, word); |
438 |
exit(1); |
439 |
} |
440 |
|
441 |
|
442 |
/* |
443 |
* parse__machine(): |
444 |
*/ |
445 |
static void parse__machine(struct emul *e, FILE *f, int *in_emul, int *line, |
446 |
int *parsestate, char *word, size_t maxbuflen) |
447 |
{ |
448 |
int r, i; |
449 |
|
450 |
if (word[0] == ')') { |
451 |
/* Finished with the 'machine' section. */ |
452 |
struct machine *m; |
453 |
|
454 |
if (!cur_machine_name[0]) |
455 |
strlcpy(cur_machine_name, "no_name", |
456 |
sizeof(cur_machine_name)); |
457 |
|
458 |
m = emul_add_machine(e, cur_machine_name); |
459 |
|
460 |
r = machine_name_to_type(cur_machine_type, cur_machine_subtype, |
461 |
&m->machine_type, &m->machine_subtype, &m->arch); |
462 |
if (!r) |
463 |
exit(1); |
464 |
|
465 |
if (cur_machine_cpu[0]) |
466 |
CHECK_ALLOCATION(m->cpu_name = strdup(cur_machine_cpu)); |
467 |
|
468 |
if (!cur_machine_use_x11[0]) |
469 |
strlcpy(cur_machine_use_x11, "no", |
470 |
sizeof(cur_machine_use_x11)); |
471 |
m->x11_md.in_use = parse_on_off(cur_machine_use_x11); |
472 |
|
473 |
if (!cur_machine_slowsi[0]) |
474 |
strlcpy(cur_machine_slowsi, "no", |
475 |
sizeof(cur_machine_slowsi)); |
476 |
m->slow_serial_interrupts_hack_for_linux = |
477 |
parse_on_off(cur_machine_slowsi); |
478 |
|
479 |
if (!cur_machine_prom_emulation[0]) |
480 |
strlcpy(cur_machine_prom_emulation, "yes", |
481 |
sizeof(cur_machine_prom_emulation)); |
482 |
m->prom_emulation = parse_on_off(cur_machine_prom_emulation); |
483 |
|
484 |
if (!cur_machine_random_mem[0]) |
485 |
strlcpy(cur_machine_random_mem, "no", |
486 |
sizeof(cur_machine_random_mem)); |
487 |
m->random_mem_contents = |
488 |
parse_on_off(cur_machine_random_mem); |
489 |
|
490 |
if (!cur_machine_random_cpu[0]) |
491 |
strlcpy(cur_machine_random_cpu, "no", |
492 |
sizeof(cur_machine_random_cpu)); |
493 |
m->use_random_bootstrap_cpu = |
494 |
parse_on_off(cur_machine_random_cpu); |
495 |
|
496 |
m->byte_order_override = NO_BYTE_ORDER_OVERRIDE; |
497 |
if (cur_machine_byte_order[0]) { |
498 |
if (strncasecmp(cur_machine_byte_order, "big", 3) == 0) |
499 |
m->byte_order_override = EMUL_BIG_ENDIAN; |
500 |
else if (strncasecmp(cur_machine_byte_order, "little", |
501 |
6) == 0) |
502 |
m->byte_order_override = EMUL_LITTLE_ENDIAN; |
503 |
else { |
504 |
fatal("Byte order must be big-endian or" |
505 |
" little-endian\n"); |
506 |
exit(1); |
507 |
} |
508 |
} |
509 |
|
510 |
if (!cur_machine_force_netboot[0]) |
511 |
strlcpy(cur_machine_force_netboot, "no", |
512 |
sizeof(cur_machine_force_netboot)); |
513 |
m->force_netboot = parse_on_off(cur_machine_force_netboot); |
514 |
|
515 |
if (!cur_machine_start_paused[0]) |
516 |
strlcpy(cur_machine_start_paused, "no", |
517 |
sizeof(cur_machine_start_paused)); |
518 |
m->start_paused = parse_on_off(cur_machine_start_paused); |
519 |
|
520 |
/* NOTE: Default nr of CPUs is 0: */ |
521 |
if (!cur_machine_ncpus[0]) |
522 |
strlcpy(cur_machine_ncpus, "0", |
523 |
sizeof(cur_machine_ncpus)); |
524 |
m->ncpus = atoi(cur_machine_ncpus); |
525 |
|
526 |
if (cur_machine_n_gfx_cards[0]) |
527 |
m->n_gfx_cards = atoi(cur_machine_n_gfx_cards); |
528 |
|
529 |
if (cur_machine_serial_nr[0]) { |
530 |
m->serial_nr = atoi(cur_machine_serial_nr); |
531 |
e->next_serial_nr = m->serial_nr+1; |
532 |
} |
533 |
|
534 |
if (cur_machine_emulated_hz[0]) { |
535 |
m->emulated_hz = mystrtoull(cur_machine_emulated_hz, |
536 |
NULL, 0); |
537 |
} |
538 |
|
539 |
/* NOTE: Default nr of CPUs is 0: */ |
540 |
if (!cur_machine_memory[0]) |
541 |
strlcpy(cur_machine_memory, "0", |
542 |
sizeof(cur_machine_memory)); |
543 |
m->physical_ram_in_mb = atoi(cur_machine_memory); |
544 |
|
545 |
if (!cur_machine_x11_scaledown[0]) |
546 |
m->x11_md.scaledown = 1; |
547 |
else { |
548 |
m->x11_md.scaledown = atoi(cur_machine_x11_scaledown); |
549 |
if (m->x11_md.scaledown < 0) { |
550 |
m->x11_md.scaleup = 0 - m->x11_md.scaledown; |
551 |
m->x11_md.scaledown = 1; |
552 |
} |
553 |
if (m->x11_md.scaledown < 1) { |
554 |
fprintf(stderr, "Invalid scaledown value" |
555 |
" (%i)\n", m->x11_md.scaledown); |
556 |
exit(1); |
557 |
} |
558 |
} |
559 |
|
560 |
for (i=0; i<cur_machine_n_disk; i++) { |
561 |
diskimage_add(m, cur_machine_disk[i]); |
562 |
free(cur_machine_disk[i]); |
563 |
cur_machine_disk[i] = NULL; |
564 |
} |
565 |
|
566 |
m->boot_kernel_filename = strdup(cur_machine_bootname); |
567 |
|
568 |
if (cur_machine_bootarg[0]) |
569 |
m->boot_string_argument = strdup(cur_machine_bootarg); |
570 |
|
571 |
for (i=0; i<cur_machine_n_x11_disp; i++) { |
572 |
m->x11_md.n_display_names ++; |
573 |
CHECK_ALLOCATION(m->x11_md.display_names = realloc( |
574 |
m->x11_md.display_names, m->x11_md.n_display_names |
575 |
* sizeof(char *))); |
576 |
CHECK_ALLOCATION(m->x11_md.display_names[ |
577 |
m->x11_md.n_display_names-1] = |
578 |
strdup(cur_machine_x11_disp[i])); |
579 |
free(cur_machine_x11_disp[i]); |
580 |
cur_machine_x11_disp[i] = NULL; |
581 |
} |
582 |
|
583 |
emul_machine_setup(m, |
584 |
cur_machine_n_load, cur_machine_load, |
585 |
cur_machine_n_device, cur_machine_device); |
586 |
|
587 |
for (i=0; i<cur_machine_n_device; i++) { |
588 |
free(cur_machine_device[i]); |
589 |
cur_machine_device[i] = NULL; |
590 |
} |
591 |
|
592 |
for (i=0; i<cur_machine_n_load; i++) { |
593 |
free(cur_machine_load[i]); |
594 |
cur_machine_load[i] = NULL; |
595 |
} |
596 |
|
597 |
*parsestate = PARSESTATE_EMUL; |
598 |
return; |
599 |
} |
600 |
|
601 |
WORD("name", cur_machine_name); |
602 |
WORD("cpu", cur_machine_cpu); |
603 |
WORD("type", cur_machine_type); |
604 |
WORD("subtype", cur_machine_subtype); |
605 |
WORD("bootname", cur_machine_bootname); |
606 |
WORD("bootarg", cur_machine_bootarg); |
607 |
WORD("slow_serial_interrupts_hack_for_linux", cur_machine_slowsi); |
608 |
WORD("prom_emulation", cur_machine_prom_emulation); |
609 |
WORD("use_x11", cur_machine_use_x11); |
610 |
WORD("x11_scaledown", cur_machine_x11_scaledown); |
611 |
WORD("byte_order", cur_machine_byte_order); |
612 |
WORD("random_mem_contents", cur_machine_random_mem); |
613 |
WORD("use_random_bootstrap_cpu", cur_machine_random_cpu); |
614 |
WORD("force_netboot", cur_machine_force_netboot); |
615 |
WORD("ncpus", cur_machine_ncpus); |
616 |
WORD("serial_nr", cur_machine_serial_nr); |
617 |
WORD("n_gfx_cards", cur_machine_n_gfx_cards); |
618 |
WORD("emulated_hz", cur_machine_emulated_hz); |
619 |
WORD("memory", cur_machine_memory); |
620 |
WORD("start_paused", cur_machine_start_paused); |
621 |
|
622 |
if (strcmp(word, "load") == 0) { |
623 |
read_one_word(f, word, maxbuflen, |
624 |
line, EXPECT_LEFT_PARENTHESIS); |
625 |
if (cur_machine_n_load >= MAX_N_LOAD) { |
626 |
fprintf(stderr, "too many loads\n"); |
627 |
exit(1); |
628 |
} |
629 |
CHECK_ALLOCATION(cur_machine_load[cur_machine_n_load] = |
630 |
malloc(MAX_LOAD_LEN)); |
631 |
read_one_word(f, cur_machine_load[cur_machine_n_load], |
632 |
MAX_LOAD_LEN, line, EXPECT_WORD); |
633 |
cur_machine_n_load ++; |
634 |
read_one_word(f, word, maxbuflen, |
635 |
line, EXPECT_RIGHT_PARENTHESIS); |
636 |
return; |
637 |
} |
638 |
|
639 |
if (strcmp(word, "disk") == 0) { |
640 |
read_one_word(f, word, maxbuflen, |
641 |
line, EXPECT_LEFT_PARENTHESIS); |
642 |
if (cur_machine_n_disk >= MAX_N_DISK) { |
643 |
fprintf(stderr, "too many disks\n"); |
644 |
exit(1); |
645 |
} |
646 |
CHECK_ALLOCATION(cur_machine_disk[cur_machine_n_disk] = |
647 |
malloc(MAX_DISK_LEN)); |
648 |
read_one_word(f, cur_machine_disk[cur_machine_n_disk], |
649 |
MAX_DISK_LEN, line, EXPECT_WORD); |
650 |
cur_machine_n_disk ++; |
651 |
read_one_word(f, word, maxbuflen, |
652 |
line, EXPECT_RIGHT_PARENTHESIS); |
653 |
return; |
654 |
} |
655 |
|
656 |
if (strcmp(word, "device") == 0) { |
657 |
read_one_word(f, word, maxbuflen, |
658 |
line, EXPECT_LEFT_PARENTHESIS); |
659 |
if (cur_machine_n_device >= MAX_N_DEVICE) { |
660 |
fprintf(stderr, "too many devices\n"); |
661 |
exit(1); |
662 |
} |
663 |
CHECK_ALLOCATION(cur_machine_device[cur_machine_n_device] = |
664 |
malloc(MAX_DEVICE_LEN)); |
665 |
read_one_word(f, cur_machine_device[cur_machine_n_device], |
666 |
MAX_DEVICE_LEN, line, EXPECT_WORD); |
667 |
cur_machine_n_device ++; |
668 |
read_one_word(f, word, maxbuflen, |
669 |
line, EXPECT_RIGHT_PARENTHESIS); |
670 |
return; |
671 |
} |
672 |
|
673 |
if (strcmp(word, "add_x11_display") == 0) { |
674 |
read_one_word(f, word, maxbuflen, |
675 |
line, EXPECT_LEFT_PARENTHESIS); |
676 |
if (cur_machine_n_x11_disp >= MAX_N_X11_DISP) { |
677 |
fprintf(stderr, "too many x11 displays\n"); |
678 |
exit(1); |
679 |
} |
680 |
CHECK_ALLOCATION(cur_machine_x11_disp[cur_machine_n_x11_disp] = |
681 |
malloc(MAX_X11_DISP_LEN)); |
682 |
read_one_word(f, cur_machine_x11_disp[cur_machine_n_x11_disp], |
683 |
MAX_X11_DISP_LEN, line, EXPECT_WORD); |
684 |
cur_machine_n_x11_disp ++; |
685 |
read_one_word(f, word, maxbuflen, |
686 |
line, EXPECT_RIGHT_PARENTHESIS); |
687 |
return; |
688 |
} |
689 |
|
690 |
fatal("line %i: not expecting '%s' in a 'machine' section\n", |
691 |
*line, word); |
692 |
exit(1); |
693 |
} |
694 |
|
695 |
|
696 |
/* |
697 |
* emul_parse_config(): |
698 |
* |
699 |
* Set up an emulation by parsing a config file. |
700 |
*/ |
701 |
void emul_parse_config(struct emul *e, char *fname) |
702 |
{ |
703 |
FILE *f = fopen(fname, "r"); |
704 |
char word[MAX_WORD_LEN]; |
705 |
int in_emul = 0; |
706 |
int line = 1; |
707 |
int parsestate = PARSESTATE_EMUL; |
708 |
|
709 |
/* debug("emul_parse_config()\n"); */ |
710 |
if (f == NULL) { |
711 |
perror(fname); |
712 |
exit(1); |
713 |
} |
714 |
|
715 |
while (!feof(f)) { |
716 |
read_one_word(f, word, sizeof(word), &line, |
717 |
EXPECT_WORD | EXPECT_RIGHT_PARENTHESIS); |
718 |
if (!word[0]) |
719 |
break; |
720 |
|
721 |
/* debug("word = '%s'\n", word); */ |
722 |
|
723 |
switch (parsestate) { |
724 |
case PARSESTATE_EMUL: |
725 |
parse__emul(e, f, &in_emul, &line, &parsestate, |
726 |
word, sizeof(word)); |
727 |
break; |
728 |
case PARSESTATE_NET: |
729 |
parse__net(e, f, &in_emul, &line, &parsestate, |
730 |
word, sizeof(word)); |
731 |
break; |
732 |
case PARSESTATE_MACHINE: |
733 |
parse__machine(e, f, &in_emul, &line, &parsestate, |
734 |
word, sizeof(word)); |
735 |
break; |
736 |
case PARSESTATE_NONE: |
737 |
break; |
738 |
default: |
739 |
fatal("INTERNAL ERROR in emul_parse.c (" |
740 |
"parsestate %i is not imlemented yet?)\n", |
741 |
parsestate); |
742 |
exit(1); |
743 |
} |
744 |
} |
745 |
|
746 |
if (parenthesis_level != 0) { |
747 |
fatal("EOF but not enough right parentheses?\n"); |
748 |
exit(1); |
749 |
} |
750 |
|
751 |
fclose(f); |
752 |
} |
753 |
|