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/* Copyright (C) 2004 MySQL AB
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; version 2 of the License.
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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/*
Written by Magnus Svensson
*/
/*
Converts a SQL file into a C file that can be compiled and linked
into other programs
*/
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/stat.h>
/* Compiler-dependent constant for maximum string constant */
#define MAX_STRING_CONSTANT_LENGTH 65535
FILE *in, *out;
static void die(const char *fmt, ...)
{
va_list args;
/* Print the error message */
fprintf(stderr, "FATAL ERROR: ");
if (fmt)
{
va_start(args, fmt);
vfprintf(stderr, fmt, args);
va_end(args);
}
else
fprintf(stderr, "unknown error");
fprintf(stderr, "\n");
fflush(stderr);
/* Close any open files */
if (in)
fclose(in);
if (out)
fclose(out);
exit(1);
}
int main(int argc, char *argv[])
{
char buff[512];
struct stat st;
char* struct_name= argv[1];
char* infile_name= argv[2];
char* outfile_name= argv[3];
if (argc != 4)
die("Usage: comp_sql <struct_name> <sql_filename> <c_filename>");
/* Open input and output file */
if (!(in= fopen(infile_name, "r")))
die("Failed to open SQL file '%s'", infile_name);
if (!(out= fopen(outfile_name, "w")))
die("Failed to open output file '%s'", outfile_name);
fprintf(out, "const char %s[]={\n",struct_name);
/*
Some compilers have limitations how long a string constant can be.
We'll output very long strings as hexadecimal arrays, and short ones
as strings (prettier)
*/
stat(infile_name, &st);
if (st.st_size > MAX_STRING_CONSTANT_LENGTH)
{
int cnt=0;
int c;
for(cnt=0;;cnt++)
{
c= fgetc(in);
if (c== -1)
break;
if(cnt != 0)
fputc(',', out);
/* Put line break after each 16 hex characters */
if(cnt && (cnt%16 == 0))
fputc('\n', out);
fprintf(out,"0x%02x",c);
}
fprintf(out,",0x00");
}
else
{
fprintf(out,"\"");
while (fgets(buff, sizeof(buff), in))
{
char *curr= buff;
while (*curr)
{
if (*curr == '\n')
{
/*
Reached end of line, add escaped newline, escaped
backslash and a newline to outfile
*/
fprintf(out, "\\n \"\n\"");
curr++;
}
else if (*curr == '\r')
{
curr++; /* Skip */
}
else
{
if (*curr == '"')
{
/* Needs escape */
fputc('\\', out);
}
fputc(*curr, out);
curr++;
}
}
if (*(curr-1) != '\n')
{
/*
Some compilers have a max string length,
insert a newline at every 512th char in long
strings
*/
fprintf(out, "\"\n\"");
}
}
fprintf(out, "\\\n\"");
}
fprintf(out, "};\n");
fclose(in);
fclose(out);
exit(0);
}
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