2010-04-21 04:56:56 +00:00
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/* MSPDebug - debugging tool for MSP430 MCUs
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* Copyright (C) 2009, 2010 Daniel Beer
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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, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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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 <ctype.h>
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#include <errno.h>
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#ifdef USE_READLINE
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#include <readline/readline.h>
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#include <readline/history.h>
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#endif
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2010-05-01 05:54:10 +00:00
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#include "expr.h"
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2010-04-21 04:56:56 +00:00
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#include "cproc.h"
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#include "vector.h"
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#include "stab.h"
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#include "util.h"
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struct cproc {
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struct vector command_list;
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struct vector option_list;
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int lists_modified;
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int modify_flags;
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int in_reader_loop;
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2010-04-30 04:01:03 +00:00
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device_t device;
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2010-05-01 06:34:43 +00:00
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stab_t stab;
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2010-04-21 04:56:56 +00:00
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};
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static struct cproc_option *find_option(cproc_t cp, const char *name)
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{
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int i;
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for (i = 0; i < cp->option_list.size; i++) {
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struct cproc_option *opt =
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VECTOR_PTR(cp->option_list, i, struct cproc_option);
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if (!strcasecmp(opt->name, name))
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return opt;
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}
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return NULL;
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}
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static struct cproc_command *find_command(cproc_t cp, const char *name)
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{
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int i;
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for (i = 0; i < cp->command_list.size; i++) {
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struct cproc_command *cmd =
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VECTOR_PTR(cp->command_list, i, struct cproc_command);
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if (!strcasecmp(cmd->name, name))
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return cmd;
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}
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return NULL;
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}
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static int namelist_cmp(const void *a, const void *b)
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{
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return strcasecmp(*(const char **)a, *(const char **)b);
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}
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/* NOTE: Both sort_lists and namelist_print assume that the first item in each
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* vector element is a const char *
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*/
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static void sort_lists(cproc_t cp)
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{
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if (!cp->lists_modified)
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return;
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if (cp->command_list.ptr)
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qsort(cp->command_list.ptr, cp->command_list.size,
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cp->command_list.elemsize, namelist_cmp);
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if (cp->option_list.ptr)
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qsort(cp->option_list.ptr, cp->option_list.size,
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cp->option_list.elemsize, namelist_cmp);
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cp->lists_modified = 0;
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}
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static void namelist_print(struct vector *v)
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{
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int i;
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int max_len = 0;
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int rows, cols;
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for (i = 0; i < v->size; i++) {
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const char *text = VECTOR_AT(*v, i, const char *);
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int len = strlen(text);
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if (len > max_len)
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max_len = len;
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}
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max_len += 2;
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cols = 72 / max_len;
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rows = (v->size + cols - 1) / cols;
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for (i = 0; i < rows; i++) {
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int j;
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printf(" ");
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for (j = 0; j < cols; j++) {
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int k = j * rows + i;
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const char *text;
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if (k >= v->size)
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break;
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text = VECTOR_AT(*v, k, const char *);
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printf("%s", text);
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for (k = strlen(text); k < max_len; k++)
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printf(" ");
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}
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printf("\n");
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}
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}
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static const char *type_text(cproc_option_type_t type)
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{
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switch (type) {
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case CPROC_OPTION_BOOL:
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return "boolean";
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case CPROC_OPTION_NUMERIC:
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return "numeric";
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case CPROC_OPTION_STRING:
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return "text";
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}
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return "unknown";
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}
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static int cmd_help(cproc_t cp, char **arg)
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{
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const char *topic = get_arg(arg);
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if (topic) {
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const struct cproc_command *cmd = find_command(cp, topic);
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const struct cproc_option *opt = find_option(cp, topic);
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if (cmd) {
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cproc_printf(cp, "\x1b[1mCOMMAND: %s\x1b[0m\n",
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cmd->name);
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fputs(cmd->help, stdout);
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if (opt)
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printf("\n");
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}
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if (opt) {
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cproc_printf(cp, "\x1b[1mOPTION: %s (%s)\x1b[0m\n",
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opt->name, type_text(opt->type));
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fputs(opt->help, stdout);
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}
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if (!(cmd || opt)) {
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fprintf(stderr, "help: unknown command: %s\n", topic);
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return -1;
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}
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} else {
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sort_lists(cp);
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printf("Available commands:\n");
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namelist_print(&cp->command_list);
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printf("\n");
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printf("Available options:\n");
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namelist_print(&cp->option_list);
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printf("\n");
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printf("Type \"help <topic>\" for more information.\n");
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printf("Press Ctrl+D to quit.\n");
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}
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return 0;
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}
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2010-05-01 06:34:43 +00:00
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static int parse_option(stab_t stab,
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struct cproc_option *o, const char *word)
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2010-04-21 04:56:56 +00:00
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{
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switch (o->type) {
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case CPROC_OPTION_BOOL:
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o->data.numeric = (isdigit(word[0]) && word[0] > '0') ||
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word[0] == 't' || word[0] == 'y' ||
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(word[0] == 'o' && word[1] == 'n');
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break;
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case CPROC_OPTION_NUMERIC:
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2010-05-01 06:34:43 +00:00
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return expr_eval(stab, word, &o->data.numeric);
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2010-04-21 04:56:56 +00:00
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case CPROC_OPTION_STRING:
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strncpy(o->data.text, word, sizeof(o->data.text));
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o->data.text[sizeof(o->data.text) - 1] = 0;
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break;
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}
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return 0;
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}
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static void display_option(const struct cproc_option *o)
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{
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printf("%32s = ", o->name);
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switch (o->type) {
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case CPROC_OPTION_BOOL:
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printf("%s", o->data.numeric ? "true" : "false");
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break;
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case CPROC_OPTION_NUMERIC:
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printf("0x%x (%d)", o->data.numeric,
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o->data.numeric);
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break;
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case CPROC_OPTION_STRING:
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printf("%s", o->data.text);
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break;
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}
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printf("\n");
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}
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static int cmd_opt(cproc_t cp, char **arg)
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{
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const char *opt_text = get_arg(arg);
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struct cproc_option *opt = NULL;
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sort_lists(cp);
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if (opt_text) {
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opt = find_option(cp, opt_text);
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if (!opt) {
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fprintf(stderr, "opt: no such option: %s\n",
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opt_text);
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return -1;
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}
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}
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if (**arg) {
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2010-05-01 06:34:43 +00:00
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if (parse_option(cp->stab, opt, *arg) < 0) {
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2010-04-21 04:56:56 +00:00
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fprintf(stderr, "opt: can't parse option: %s\n",
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*arg);
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return -1;
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}
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} else if (opt_text) {
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display_option(opt);
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} else {
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int i;
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for (i = 0; i < cp->option_list.size; i++)
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display_option(VECTOR_PTR(cp->option_list, i,
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struct cproc_option));
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}
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return 0;
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}
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static int cmd_read(cproc_t cp, char **arg)
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{
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char *filename = get_arg(arg);
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if (!filename) {
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fprintf(stderr, "read: filename must be specified\n");
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return -1;
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}
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return cproc_process_file(cp, filename);
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}
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static const struct cproc_command built_in_commands[] = {
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{
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.name = "help",
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.func = cmd_help,
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.help =
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"help [command]\n"
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" Without arguments, displays a list of commands. With a command\n"
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" name as an argument, displays help for that command.\n"
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},
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{
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.name = "opt",
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.func = cmd_opt,
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.help =
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"opt [name] [value]\n"
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" Query or set option variables. With no arguments, displays all\n"
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" available options.\n"
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},
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{
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.name = "read",
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.func = cmd_read,
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.help =
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"read <filename>\n"
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" Read commands from a file and evaluate them.\n"
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}
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};
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static const struct cproc_option built_in_options[] = {
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{
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.name = "color",
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.type = CPROC_OPTION_BOOL,
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.help = "Colorize debugging output.\n"
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}
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};
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2010-05-01 06:34:43 +00:00
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cproc_t cproc_new(device_t dev, stab_t st)
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2010-04-21 04:56:56 +00:00
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{
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cproc_t cp = malloc(sizeof(*cp));
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if (!cp)
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return NULL;
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memset(cp, 0, sizeof(*cp));
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2010-04-30 04:01:03 +00:00
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cp->device = dev;
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2010-05-01 06:34:43 +00:00
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cp->stab = st;
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2010-04-30 04:01:03 +00:00
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2010-04-21 04:56:56 +00:00
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vector_init(&cp->command_list, sizeof(struct cproc_command));
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vector_init(&cp->option_list, sizeof(struct cproc_option));
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if (vector_push(&cp->command_list, &built_in_commands,
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ARRAY_LEN(built_in_commands)) < 0 ||
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vector_push(&cp->option_list, &built_in_options,
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ARRAY_LEN(built_in_options)) < 0) {
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vector_destroy(&cp->command_list);
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vector_destroy(&cp->option_list);
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free(cp);
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return NULL;
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}
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return cp;
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}
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void cproc_destroy(cproc_t cp)
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{
|
2010-04-30 04:01:03 +00:00
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cp->device->destroy(cp->device);
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2010-04-21 04:56:56 +00:00
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vector_destroy(&cp->command_list);
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vector_destroy(&cp->option_list);
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2010-05-01 06:34:43 +00:00
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stab_destroy(cp->stab);
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2010-04-21 04:56:56 +00:00
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free(cp);
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}
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2010-04-30 04:01:03 +00:00
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device_t cproc_device(cproc_t cp)
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{
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return cp->device;
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}
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|
2010-05-01 06:34:43 +00:00
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stab_t cproc_stab(cproc_t cp)
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{
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return cp->stab;
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}
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2010-04-21 04:56:56 +00:00
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int cproc_register_commands(cproc_t cp, const struct cproc_command *cmd,
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int count)
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{
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if (vector_push(&cp->command_list, cmd, count) < 0)
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return -1;
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cp->lists_modified = 1;
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return 0;
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}
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int cproc_register_options(cproc_t cp, const struct cproc_option *opt,
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int count)
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{
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if (vector_push(&cp->option_list, opt, count) < 0)
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return -1;
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|
|
cp->lists_modified = 1;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void cproc_printf(cproc_t cp, const char *fmt, ...)
|
|
|
|
{
|
|
|
|
char buf[256];
|
|
|
|
va_list ap;
|
|
|
|
int want_color = 0;
|
|
|
|
|
|
|
|
va_start(ap, fmt);
|
|
|
|
vsnprintf(buf, sizeof(buf), fmt, ap);
|
|
|
|
va_end(ap);
|
|
|
|
|
|
|
|
cproc_get_int(cp, "color", &want_color);
|
|
|
|
if (!want_color) {
|
|
|
|
char *src = buf;
|
|
|
|
char *dst = buf;
|
|
|
|
|
|
|
|
for (;;) {
|
|
|
|
if (*src == 27) {
|
|
|
|
while (*src && !isalpha(*src))
|
|
|
|
src++;
|
|
|
|
if (*src)
|
|
|
|
src++;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!*src)
|
|
|
|
break;
|
|
|
|
|
|
|
|
*(dst++) = *(src++);
|
|
|
|
}
|
|
|
|
|
|
|
|
*dst = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
puts(buf);
|
|
|
|
}
|
|
|
|
|
|
|
|
void cproc_modify(cproc_t cp, int flags)
|
|
|
|
{
|
|
|
|
cp->modify_flags |= flags;
|
|
|
|
}
|
|
|
|
|
|
|
|
void cproc_unmodify(cproc_t cp, int flags)
|
|
|
|
{
|
|
|
|
cp->modify_flags &= ~flags;
|
|
|
|
}
|
|
|
|
|
|
|
|
int cproc_prompt_abort(cproc_t cp, int flags)
|
|
|
|
{
|
|
|
|
char buf[32];
|
|
|
|
|
|
|
|
if (!(cp->in_reader_loop && (cp->modify_flags & flags)))
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
for (;;) {
|
|
|
|
printf("Symbols have not been saved since modification. "
|
|
|
|
"Continue (y/n)? ");
|
|
|
|
fflush(stdout);
|
|
|
|
|
|
|
|
if (!fgets(buf, sizeof(buf), stdin)) {
|
|
|
|
printf("\n");
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (toupper(buf[0]) == 'Y')
|
|
|
|
return 0;
|
|
|
|
if (toupper(buf[0]) == 'N')
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
printf("Please answer \"y\" or \"n\".\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int cproc_get_int(cproc_t cp, const char *name, int *value)
|
|
|
|
{
|
|
|
|
struct cproc_option *opt = find_option(cp, name);
|
|
|
|
|
|
|
|
if (!opt)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
if (opt->type == CPROC_OPTION_NUMERIC ||
|
|
|
|
opt->type == CPROC_OPTION_BOOL) {
|
|
|
|
*value = opt->data.numeric;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
int cproc_get_string(cproc_t cp, const char *name, char *value, int max_len)
|
|
|
|
{
|
|
|
|
struct cproc_option *opt = find_option(cp, name);
|
|
|
|
|
|
|
|
if (!opt)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
if (opt->type == CPROC_OPTION_STRING) {
|
|
|
|
strncpy(value, opt->data.text, max_len);
|
|
|
|
value[max_len - 1] = 0;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifndef USE_READLINE
|
|
|
|
#define LINE_BUF_SIZE 128
|
|
|
|
|
|
|
|
static char *readline(const char *prompt)
|
|
|
|
{
|
|
|
|
char *buf = malloc(LINE_BUF_SIZE);
|
|
|
|
|
|
|
|
if (!buf) {
|
|
|
|
perror("readline: can't allocate memory");
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (;;) {
|
|
|
|
printf("(mspdebug) ");
|
|
|
|
fflush(stdout);
|
|
|
|
|
|
|
|
if (fgets(buf, LINE_BUF_SIZE, stdin))
|
|
|
|
return buf;
|
|
|
|
|
|
|
|
if (feof(stdin))
|
|
|
|
break;
|
|
|
|
|
|
|
|
printf("\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
free(buf);
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
#define add_history(x)
|
|
|
|
#endif
|
|
|
|
|
|
|
|
static int process_command(cproc_t cp, char *arg, int interactive)
|
|
|
|
{
|
|
|
|
const char *cmd_text;
|
|
|
|
int len = strlen(arg);
|
|
|
|
|
|
|
|
while (len && isspace(arg[len - 1]))
|
|
|
|
len--;
|
|
|
|
arg[len] = 0;
|
|
|
|
|
|
|
|
cmd_text = get_arg(&arg);
|
|
|
|
if (cmd_text) {
|
|
|
|
const struct cproc_command *cmd = find_command(cp, cmd_text);
|
|
|
|
|
|
|
|
if (cmd) {
|
|
|
|
int old = cp->in_reader_loop;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
cp->in_reader_loop = interactive;
|
|
|
|
ret = cmd->func(cp, &arg);
|
|
|
|
cp->in_reader_loop = old;
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
fprintf(stderr, "unknown command: %s (try \"help\")\n",
|
|
|
|
cmd_text);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void cproc_reader_loop(cproc_t cp)
|
|
|
|
{
|
2010-04-30 10:20:58 +00:00
|
|
|
int old = cp->in_reader_loop;
|
|
|
|
|
|
|
|
cp->in_reader_loop = 1;
|
|
|
|
|
2010-04-21 04:56:56 +00:00
|
|
|
printf("\n");
|
|
|
|
cmd_help(cp, NULL);
|
|
|
|
printf("\n");
|
|
|
|
|
|
|
|
do {
|
|
|
|
for (;;) {
|
|
|
|
char *buf = readline("(mspdebug) ");
|
|
|
|
|
|
|
|
if (!buf)
|
|
|
|
break;
|
|
|
|
|
|
|
|
add_history(buf);
|
|
|
|
process_command(cp, buf, 1);
|
|
|
|
free(buf);
|
|
|
|
}
|
|
|
|
} while (cproc_prompt_abort(cp, CPROC_MODIFY_SYMS));
|
|
|
|
|
|
|
|
printf("\n");
|
2010-04-30 10:20:58 +00:00
|
|
|
cp->in_reader_loop = old;
|
2010-04-21 04:56:56 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
int cproc_process_command(cproc_t cp, char *cmd)
|
|
|
|
{
|
|
|
|
return process_command(cp, cmd, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
int cproc_process_file(cproc_t cp, const char *filename)
|
|
|
|
{
|
|
|
|
FILE *in;
|
|
|
|
char buf[1024];
|
|
|
|
int line_no = 0;
|
|
|
|
|
|
|
|
in = fopen(filename, "r");
|
|
|
|
if (!in) {
|
|
|
|
fprintf(stderr, "read: can't open %s: %s\n",
|
|
|
|
filename, strerror(errno));
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
while (fgets(buf, sizeof(buf), in)) {
|
|
|
|
char *cmd = buf;
|
|
|
|
|
|
|
|
line_no++;
|
|
|
|
|
|
|
|
while (*cmd && isspace(*cmd))
|
|
|
|
cmd++;
|
|
|
|
|
|
|
|
if (*cmd == '#')
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if (process_command(cp, cmd, 0) < 0) {
|
|
|
|
fprintf(stderr, "read: error processing %s (line %d)\n",
|
|
|
|
filename, line_no);
|
|
|
|
fclose(in);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
fclose(in);
|
|
|
|
return 0;
|
|
|
|
}
|