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Code Issues Releases Activity

bdk: sprintf: allow padding > 9

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CTCaer 2024-02-16 16:01:54 +02:00
parent abeafb9a67
commit 6d69ef3cf6
1 changed files with 47 additions and 5 deletions
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50
bdk/utils/sprintf.c
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@ -39,7 +39,7 @@ static void _s_putn(u32 v, int base, char fill, int fcnt)
static const char digits[] = "0123456789ABCDEF";
char *p;
char buf[65];
char buf[65]; // Number char size + leftover for padding.
int c = fcnt;
bool negative = false;
@ -93,22 +93,36 @@ void s_printf(char *out_buf, const char *fmt, ...)
fmt++;
fill = 0;
fcnt = 0;
// Check for padding. Number or space based.
if ((*fmt >= '0' && *fmt <= '9') || *fmt == ' ')
{
fcnt = *fmt;
fcnt = *fmt; // Padding size or padding type.
fmt++;
if (*fmt >= '0' && *fmt <= '9')
{
// Padding size exists. Previous char was type.
fill = fcnt;
fcnt = *fmt - '0';
fmt++;
parse_padding_dec:
// Parse padding size extra digits.
if (*fmt >= '0' && *fmt <= '9')
{
fcnt = fcnt * 10 + *fmt - '0';
fmt++;
goto parse_padding_dec;
}
}
else
{
// No padding type, use space. (Max padding size is 9).
fill = ' ';
fcnt -= '0';
}
}
switch (*fmt)
{
case 'c':
@ -116,23 +130,29 @@ void s_printf(char *out_buf, const char *fmt, ...)
if (c != '\0')
_s_putc(c);
break;
case 's':
_s_puts(va_arg(ap, char *));
break;
case 'd':
_s_putn(va_arg(ap, u32), 10, fill, fcnt);
break;
case 'p':
case 'P':
case 'x':
case 'X':
_s_putn(va_arg(ap, u32), 16, fill, fcnt);
break;
case '%':
_s_putc('%');
break;
case '\0':
goto out;
default:
_s_putc('%');
_s_putc(*fmt);
@ -162,44 +182,66 @@ void s_vprintf(char *out_buf, const char *fmt, va_list ap)
fmt++;
fill = 0;
fcnt = 0;
// Check for padding. Number or space based.
if ((*fmt >= '0' && *fmt <= '9') || *fmt == ' ')
{
fcnt = *fmt;
fcnt = *fmt; // Padding size or padding type.
fmt++;
if (*fmt >= '0' && *fmt <= '9')
{
// Padding size exists. Previous char was type.
fill = fcnt;
fcnt = *fmt - '0';
fmt++;
parse_padding_dec:
// Parse padding size extra digits.
if (*fmt >= '0' && *fmt <= '9')
{
fcnt = fcnt * 10 + *fmt - '0';
fmt++;
goto parse_padding_dec;
}
}
else
{
// No padding type, use space. (Max padding size is 9).
fill = ' ';
fcnt -= '0';
}
}
switch (*fmt)
{
case 'c':
_s_putc(va_arg(ap, u32));
char c = va_arg(ap, u32);
if (c != '\0')
_s_putc(c);
break;
case 's':
_s_puts(va_arg(ap, char *));
break;
case 'd':
_s_putn(va_arg(ap, u32), 10, fill, fcnt);
break;
case 'p':
case 'P':
case 'x':
case 'X':
_s_putn(va_arg(ap, u32), 16, fill, fcnt);
break;
case '%':
_s_putc('%');
break;
case '\0':
goto out;
default:
_s_putc('%');
_s_putc(*fmt);