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#include "fmt.h"
/**
@file fmt.c
@author djb
@source qmail
@brief formating differnt inputs format for output printing
*/
unsigned int fmt_str(register char *s, register char *t)
{
register unsigned int len;
char ch;
len = 0;
if (s) {
while ((ch = t[len])) s[len++] = ch;
} else
while (t[len]) len++;
return len;
}
unsigned int fmt_strn(register char *s, register char *t, register unsigned int n)
{
register unsigned int len;
char ch;
len = 0;
if (s) {
while (n-- && (ch = t[len])) s[len++] = ch;
} else
while (n-- && t[len]) len++;
return len;
}
unsigned int fmt_uint(register char *s, register unsigned int u)
{
register unsigned long l;
l = u;
return fmt_ulong(s, l);
}
unsigned int fmt_uint0(char *s, unsigned int u, unsigned int n)
{
unsigned int len;
len = fmt_uint(FMT_LEN, u);
while (len < n) {
if (s) *s++ = '0';
++len;
}
if (s) fmt_uint(s, u);
return len;
}
unsigned int fmt_ulong(register char *s, register unsigned long u)
{
register unsigned int len;
register unsigned long q;
len = 1;
q = u;
while (q > 9) {
++len;
q /= 10;
}
if (s) {
s += len;
do {
*--s = '0' + (u % 10);
u /= 10;
} while (u); /* handles u == 0 */
}
return len;
}
unsigned int fmt_xlong(register char *s, register unsigned long u)
{
register unsigned int len;
register unsigned long q;
len = 1;
q = u;
while (q > 15) {
++len;
q /= 16;
}
if (s) {
s += len;
do {
*--s = tohex(u % 16);
u /= 16;
} while (u); /* handles u == 0 */
}
return len;
}
char tohex(char num)
{
if (num < 10)
return num + '0';
else if (num < 16)
return num - 10 + 'a';
else
return -1;
}
int fromhex(unsigned char c)
{
if (c >= '0' && c <= '9')
return c - '0';
else if (c >= 'A' && c <= 'F')
return c - 'A' + 10;
else if (c >= 'a' && c <= 'f')
return c - 'a' + 10;
return -1;
}
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