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/*
!!DESCRIPTION!! varargs test
!!ORIGIN!!
!!LICENCE!! public domain
*/
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
void chk0(char *format,...);
void chk1(int fd,char *format,...);
#if 0
// old workaround for broken varargs
void chk0(char *format,...){
__asm__ ("pha"); // save argument size
{
//va_list ap;
char *ap;
char *_format;
static char string[0x100];
// va_start(ap,format);
__asm__ ("pla"); // restore argument size
__asm__ ("ldx #$00"); // clear hibyte of AX
ap=__AX__;
ap+=(char*)&format;
// get value of format
ap-=2;
_format=*((char**)ap);
// vsprintf(string,format,ap);
vsprintf(&string[0],_format,ap);
printf("format:%s,string:%s\n",_format,string);
// va_end(ap);
}
}
void chk1(int fd,char *format,...){
__asm__ ("pha"); // save argument size
{
//va_list ap;
char *ap;
char *_format;
int _fd;
static char string[0x100];
// va_start(ap,format);
__asm__ ("pla"); // restore argument size
__asm__ ("ldx #$00"); // clear hibyte of AX
ap=__AX__;
ap+=(char*)&format;
// get value of fd
ap-=2;
_fd=*((int*)ap);
// get value of format
ap-=2;
_format=*((char**)ap);
// vsprintf(string,format,ap);
vsprintf(&string[0],_format,ap);
printf("fd:%d,format:%s,string:%s\n",_fd,_format,string);
// va_end(ap);
}
}
#endif
void chk0(char *format,...){
va_list ap;
static char string[0x100];
va_start(ap,format);
vsprintf(string,format,ap);
printf("format:%s,string:%s\n",format,string);
va_end(ap);
}
void chk1(int fd,char *format,...){
va_list ap;
static char string[0x100];
va_start(ap,format);
vsprintf(string,format,ap);
printf("fd:%d,format:%s,string:%s\n",fd,format,string);
va_end(ap);
}
int main(int argc,char **argv) {
printf("varargs test\n");
printf("\nchk0/0:\n");chk0("chk0 %s","arg0");
printf("\nchk0/1:\n");chk0("chk0 %s %s","arg0","arg1");
printf("\nchk0/2:\n");chk0("chk0 %s %s %s","arg0","arg1","arg2");
printf("\nchk1/0:\n");chk1(0xfd,"chk1 %s","arg0");
printf("\nchk1/1:\n");chk1(0xfd,"chk1 %s %s","arg0","arg1");
printf("\nchk1/2:\n");chk1(0xfd,"chk1 %s %s %s","arg0","arg1","arg2");
return 0;
}
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