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#include <stdlib.h>
#include <stdio.h>
#include <tce/syscall.h>
#include <readline.h>
FILE term = 0;
void print(char *s) { fprint(term, s); }
void printf(char *format, ...) {
va_list ap;
va_start(ap, format);
vfprintf(term, format, ap);
va_end(ap);
}
char* readln() { return freadln(term); }
void fprintf(FILE f, char* format, ...) {
va_list ap;
va_start(ap, format);
vfprintf(f, format, ap);
va_end(ap);
}
// INTERNAL, FOR FORMATTING
static char* format_int(char* buf, int number) {
if (number == 0) {
*(buf++) = '0';
return buf;
}
if (number < 0) {
*(buf++) = '-';
number = 0 - number;
}
int order = 0, temp = number, i;
char numbers[] = "0123456789";
while (temp > 0) {
order++;
temp /= 10;
}
for (i = order; i > 0; i--) {
buf[i - 1] = numbers[number % 10];
number /= 10;
}
return buf + order;
}
static char* format_hex(char *buf, unsigned v) {
*(buf++) = '0';
*(buf++) = 'x';
int i;
char hexdigits[] = "0123456789ABCDEF";
for (i = 0; i < 8; i++) {
*(buf++) = hexdigits[v >> 28];
v = v << 4;
}
return buf;
}
// FUNCTIONS
void fprint(FILE f, char *s) {
write(f, 0, strlen(s), s);
}
void fprint_int(FILE f, int number) {
char s[32];
char *v = format_int(s, number);
*v = 0;
fprint(f, s);
}
void fprint_hex(FILE f, unsigned v) {
char s[11];
char *e = format_hex(s, v);
*e = 0;
fprint(f, s);
}
void vfprintf(FILE f, char *format, va_list ap) {
char bb[256];
int bufl = 256;
char *buf = bb;
char *end = buf;
while (*format) {
if (*format == '%') {
// ASSUMPTION : (TODO) WE HAVE ENOUGH SPACE - NOT THE CASE!!!
format++;
if (*format == 'd' || *format == 'i') {
end = format_int(end, va_arg(ap, int));
} else if (*format == 'p') {
end = format_hex(end, va_arg(ap, uint32_t));
} else if (*format == 's') {
char *s = va_arg(ap, char*);
strcpy(end, s);
end += strlen(s);
}
format++;
} else {
*(end++) = *(format++);
}
if (end - buf > bufl - 2) {
bufl *= 2;
char *nbuf = (char*)malloc(bufl);
memcpy(nbuf, buf, end - buf);
end = nbuf + (end - buf);
if (buf != bb) free(buf);
buf = nbuf;
}
}
*end = 0;
fprint(f, buf);
if (buf != bb) free(buf);
}
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