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src/util/mdb-sql.c
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126
src/util/mdb-sql.c
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/* MDB Tools - A library for reading MS Access database file
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* Copyright (C) 2000 Brian Bruns
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <stdio.h>
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#ifdef HAVE_READLINE
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#include <readline/readline.h>
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#endif
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#include <string.h>
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#include "mdbsql.h"
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#if SQL
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#ifndef HAVE_READLINE
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char *readline(char *prompt)
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{
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char *buf, line[1000];
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int i = 0;
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printf("%s",prompt);
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fgets(line,1000,stdin);
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for (i=strlen(line);i>0;i--) {
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if (line[i]=='\n') {
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line[i]='\0';
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break;
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}
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}
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buf = (char *) malloc(strlen(line)+1);
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strcpy(buf,line);
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return buf;
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}
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add_history(char *s)
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{
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}
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#endif
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int parse(MdbSQL *sql, char *buf)
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{
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g_input_ptr = buf;
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/* begin unsafe */
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_mdb_sql(sql);
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if (yyparse()) {
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/* end unsafe */
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fprintf(stderr, "Couldn't parse SQL\n");
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mdb_sql_reset(sql);
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return 1;
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} else {
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return 0;
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}
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}
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main(int argc, char **argv)
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{
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char *s;
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char prompt[20];
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int line = 1;
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char *mybuf;
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int bufsz = 4096;
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int done = 0;
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MdbSQL *sql;
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/* initialize the SQL engine */
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sql = mdb_sql_init();
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if (argc>1) {
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mdb_sql_open(sql, argv[1]);
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}
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/* give the buffer an initial size */
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bufsz = 4096;
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mybuf = (char *) malloc(bufsz);
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mybuf[0]='\0';
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sprintf(prompt,"1 => ");
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s=readline(prompt);
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while (!done) {
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if (!strcmp(s,"go")) {
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line = 0;
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if (!parse(sql, mybuf) && sql->cur_table) {
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mdbsql_bind_all(sql);
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mdbsql_dump_results(sql);
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}
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mybuf[0]='\0';
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} else if (!strcmp(s,"reset")) {
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line = 0;
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mybuf[0]='\0';
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} else {
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while (strlen(mybuf) + strlen(s) > bufsz) {
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bufsz *= 2;
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mybuf = (char *) realloc(mybuf, bufsz);
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}
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add_history(s);
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strcat(mybuf,s);
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/* preserve line numbering for the parser */
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strcat(mybuf,"\n");
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}
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sprintf(prompt,"%d => ",++line);
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free(s);
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s=readline(prompt);
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if (!strcmp(s,"exit") || !strcmp(s,"quit") || !strcmp(s,"bye")) {
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done = 1;
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}
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}
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mdb_sql_exit(sql);
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}
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#else
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int main(int argc, char **argv)
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{
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fprintf(stderr,"You must configure using --enable-sql to get SQL support\n");
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}
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#endif
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