kolibrios/programs/develop/ktcc/trunk/libc/stdio/printf.c
andrew_programmer 16f5992719 Mistakes in functions of work with files and with system calls KolibriOS are corrected.
New functions for work with system calls KolibriOS are added. Functions for format output 
are added: printf (), fprintf (), sprintf (), snprintf (), vsnprintf (). For material 
numbers it is meanwhile supported only format output the (%f), and exponential output a (%e)
is not realized yet. 
Functions for format output correctly work only in GCC because TinyC incorrectly works with
the functions containing variable number of arguments.

git-svn-id: svn://kolibrios.org@647 a494cfbc-eb01-0410-851d-a64ba20cac60
2007-10-15 09:42:17 +00:00

76 lines
1.9 KiB
C

#include <stdio.h>
#include <string.h>
#include <kolibrisys.h>
char* dllname="/sys/lib/console.obj";
int console_init_status;
char* imports[] = {"START","version","con_init","con_write_asciiz","con_printf","con_exit",NULL};
char* caption = "Console test - colors";
dword* dll_ver;
void stdcall (* con_init)(dword wnd_width, dword wnd_height, dword scr_width, dword scr_height, const char* title);
void stdcall (* con_write_asciiz)(const char* string);
void cdecl (* con_printf)(const char* format,...);
void stdcall (* con_exit)(dword bCloseWindow);
struct import{
char *name;
void *data;
};
void printf_link(struct import *exp, char** imports){
dll_ver = (dword*)
_ksys_cofflib_getproc(exp, imports[1]);
con_init = (void stdcall (*)(dword , dword, dword, dword, const char*))
_ksys_cofflib_getproc(exp, imports[2]);
con_printf = (void cdecl (*)(const char*,...))
_ksys_cofflib_getproc(exp, imports[4]);
con_exit = (void stdcall (*)(dword))
_ksys_cofflib_getproc(exp, imports[5]);
}
int init_console(void)
{
struct import * hDll;
if((hDll = (struct import *)_ksys_cofflib_load(dllname)) == 0){
debug_out_str("can't load lib\n");
return 1;
}
printf_link(hDll, imports);
debug_out_str("dll loaded\n");
con_init(-1, -1, -1, -1, caption);
return(0);
}
int printf(const char *format,...)
{
int i;
int printed_simbols;
va_list arg;
char simbol[]={"%s"};
char *s;
va_start(arg,format);
if (console_init_status==0)
{
i=init_console();
console_init_status=1;
}
if (i==0)
{
s=malloc(4096);
printed_simbols=format_print(s,4096,format,arg);
con_printf(simbol,s);
free(s);
}
return(printed_simbols);
}