412 lines
7.5 KiB
C
412 lines
7.5 KiB
C
/*
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* linux/lib/vsprintf.c
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*
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* Copyright (C) 1991, 1992 Linus Torvalds
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*/
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/* vsprintf.c -- Lars Wirzenius & Linus Torvalds. */
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/*
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* Wirzenius wrote this portably, Torvalds fucked it up :-)
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*/
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#include <stdarg.h>
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#include "global.h"
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#include "string.h"
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#include "ff.h"
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#include "memory.h"
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char * strstr ( const char *str1, const char *str2)
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{
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char *cp = (char *) str1;
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char *s1, *s2;
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if ( !*str2 )
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return((char *)str1);
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while (*cp)
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{
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s1 = cp;
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s2 = (char *) str2;
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while ( *s1 && *s2 && !(*s1-*s2) )
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s1++, s2++;
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if (!*s2)
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return(cp);
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cp++;
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}
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return(NULL);
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}
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static inline int isdigit(int c)
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{
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return c >= '0' && c <= '9';
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}
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static inline int isxdigit(int c)
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{
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return (c >= '0' && c <= '9')
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|| (c >= 'a' && c <= 'f')
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|| (c >= 'A' && c <= 'F');
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}
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static inline int islower(int c)
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{
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return c >= 'a' && c <= 'z';
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}
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static inline int toupper(int c)
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{
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if (islower(c))
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c -= 'a'-'A';
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return c;
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}
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static int skip_atoi(const char **s)
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{
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int i=0;
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while (isdigit(**s))
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i = i*10 + *((*s)++) - '0';
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return i;
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}
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#define ZEROPAD 1 /* pad with zero */
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#define SIGN 2 /* unsigned/signed long */
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#define PLUS 4 /* show plus */
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#define SPACE 8 /* space if plus */
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#define LEFT 16 /* left justified */
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#define SPECIAL 32 /* 0x */
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#define LARGE 64 /* use 'ABCDEF' instead of 'abcdef' */
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#define do_div(n,base) ({ \
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int __res; \
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__res = ((unsigned long) n) % (unsigned) base; \
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n = ((unsigned long) n) / (unsigned) base; \
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__res; })
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static char * number(char * str, long num, int base, int size, int precision
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,int type)
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{
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char c,sign,tmp[66];
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const char *digits="0123456789abcdefghijklmnopqrstuvwxyz";
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int i;
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if (type & LARGE)
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digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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if (type & LEFT)
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type &= ~ZEROPAD;
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if (base < 2 || base > 36)
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return 0;
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c = (type & ZEROPAD) ? '0' : ' ';
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sign = 0;
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if (type & SIGN) {
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if (num < 0) {
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sign = '-';
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num = -num;
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size--;
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} else if (type & PLUS) {
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sign = '+';
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size--;
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} else if (type & SPACE) {
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sign = ' ';
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size--;
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}
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}
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if (type & SPECIAL) {
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if (base == 16)
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size -= 2;
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else if (base == 8)
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size--;
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}
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i = 0;
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if (num == 0)
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tmp[i++]='0';
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else while (num != 0)
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tmp[i++] = digits[do_div(num,base)];
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if (i > precision)
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precision = i;
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size -= precision;
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if (!(type&(ZEROPAD+LEFT)))
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while(size-->0)
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*str++ = ' ';
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if (sign)
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*str++ = sign;
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if (type & SPECIAL) {
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if (base==8)
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*str++ = '0';
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else if (base==16) {
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*str++ = '0';
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*str++ = digits[33];
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}
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}
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if (!(type & LEFT))
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while (size-- > 0)
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*str++ = c;
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while (i < precision--)
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*str++ = '0';
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while (i-- > 0)
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*str++ = tmp[i];
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while (size-- > 0)
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*str++ = ' ';
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return str;
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}
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int vsprintf(char *buf, const char *fmt, va_list args)
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{
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int len;
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unsigned long num;
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int i, base;
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char * str;
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const char *s;
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int flags; /* flags to number() */
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int field_width; /* width of output field */
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int precision; /* min. # of digits for integers; max
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number of chars for from string */
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int qualifier; /* 'h', 'l', or 'L' for integer fields */
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for(str=buf ; *fmt ; ++fmt)
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{
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if (*fmt != '%') {
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*str++ = *fmt;
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continue;
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}
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/* process flags */
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flags = 0;
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repeat:
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++fmt; /* this also skips first '%' */
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switch (*fmt) {
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case '-': flags |= LEFT; goto repeat;
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case '+': flags |= PLUS; goto repeat;
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case ' ': flags |= SPACE; goto repeat;
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case '#': flags |= SPECIAL; goto repeat;
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case '0': flags |= ZEROPAD; goto repeat;
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}
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/* get field width */
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field_width = -1;
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if (isdigit(*fmt))
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field_width = skip_atoi(&fmt);
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else if (*fmt == '*') {
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++fmt;
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/* it's the next argument */
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field_width = va_arg(args, int);
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if (field_width < 0) {
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field_width = -field_width;
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flags |= LEFT;
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}
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}
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/* get the precision */
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precision = -1;
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if (*fmt == '.') {
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++fmt;
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if (isdigit(*fmt))
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precision = skip_atoi(&fmt);
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else if (*fmt == '*') {
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++fmt;
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/* it's the next argument */
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precision = va_arg(args, int);
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}
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if (precision < 0)
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precision = 0;
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}
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/* get the conversion qualifier */
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qualifier = -1;
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if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L') {
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qualifier = *fmt;
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++fmt;
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}
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/* default base */
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base = 10;
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switch (*fmt) {
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case 'c':
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if (!(flags & LEFT))
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while (--field_width > 0)
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*str++ = ' ';
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*str++ = (unsigned char) va_arg(args, int);
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while (--field_width > 0)
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*str++ = ' ';
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continue;
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case 's':
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s = va_arg(args, char *);
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//if (!s)
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// s = "<NULL>";
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len = strnlen(s, precision);
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if (!(flags & LEFT))
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while (len < field_width--)
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*str++ = ' ';
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for (i = 0; i < len; ++i)
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*str++ = *s++;
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while (len < field_width--)
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*str++ = ' ';
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continue;
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case 'p':
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if (field_width == -1) {
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field_width = 2*sizeof(void *);
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flags |= ZEROPAD;
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}
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str = number(str,
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(unsigned long) va_arg(args, void *), 16,
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field_width, precision, flags);
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continue;
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case 'n':
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if (qualifier == 'l') {
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long * ip = va_arg(args, long *);
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*ip = (str - buf);
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} else {
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int * ip = va_arg(args, int *);
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*ip = (str - buf);
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}
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continue;
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case '%':
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*str++ = '%';
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continue;
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/* integer number formats - set up the flags and "break" */
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case 'o':
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base = 8;
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break;
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case 'X':
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flags |= LARGE;
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case 'x':
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base = 16;
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break;
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case 'd':
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case 'i':
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flags |= SIGN;
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case 'u':
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break;
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default:
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*str++ = '%';
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if (*fmt)
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*str++ = *fmt;
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else
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--fmt;
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continue;
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}
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if (qualifier == 'l')
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num = va_arg(args, unsigned long);
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else if (qualifier == 'h') {
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num = (unsigned short) va_arg(args, int);
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if (flags & SIGN)
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num = (short) num;
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} else if (flags & SIGN)
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num = va_arg(args, int);
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else
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num = va_arg(args, unsigned int);
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str = number(str, num, base, field_width, precision, flags);
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}
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*str = '\0';
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return str-buf;
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}
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int sprintf( char *astr, const char *fmt, ...)
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{
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va_list args;
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int i;
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va_start(args, fmt);
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i = vsprintf(astr, fmt, args);
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va_end(args);
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return i;
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}
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#define EXI 0xD806814
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void EXISendByte( char byte )
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{
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loop:
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*(vu32*)EXI = 0xD0;
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*(vu32*)(EXI+0x10) = 0xB0000000 | (byte<<20);
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*(vu32*)(EXI+0x0C) = 0x19;
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while( *(vu32*)(EXI+0x0C)&1 );
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u32 loop = *(vu32*)(EXI+0x10)&0x4000000;
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*(vu32*)EXI = 0;
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if( !loop )
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goto loop;
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return;
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}
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void GeckoSendBuffer( char *buffer )
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{
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int i = 0;
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while( buffer[i] != '\0' )
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{
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EXISendByte( buffer[i] );
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++i;
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}
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return;
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}
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int dbgprintf( const char *fmt, ...)
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{
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return 1;
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}
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static char ascii(char s)
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{
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if(s < 0x20) return '.';
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if(s > 0x7E) return '.';
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return s;
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}
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void hexdump(void *d, int len)
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{
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u8 *data;
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int i, off;
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data = (u8*)d;
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for (off=0; off<len; off += 16) {
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dbgprintf("%08x ",off);
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for(i=0; i<16; i++)
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if((i+off)>=len) dbgprintf(" ");
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else dbgprintf("%02x ",data[off+i]);
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dbgprintf(" ");
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for(i=0; i<16; i++)
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if((i+off)>=len) dbgprintf(" ");
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else dbgprintf("%c",ascii(data[off+i]));
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dbgprintf("\n");
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}
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}
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//void fatal(const char *fmt, ...)
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//{
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// va_list args;
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// char buffer[1024];
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// int i;
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//
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// va_start(args, fmt);
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// i = vsprintf(buffer, fmt, args);
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// va_end(args);
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// OSReport(buffer);
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// for (;;);
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//}
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//
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