mirror of
https://github.com/grub4dos/ntloader.git
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4512426e9a
* import wimboot v28 * remove -Wno-array-bounds * addd * reg * cmline * charset * update bcd.bat * reg prefix * fix * bcd * rootfs * fsuuid * vdisk * partmap * biosdisk * efidisk * efi * fix * fix * fix reg * fix bcd * bcd * initrd * payload
76 lines
2.0 KiB
C
76 lines
2.0 KiB
C
#ifndef _IPXE_VSPRINTF_H
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#define _IPXE_VSPRINTF_H
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/** @file
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*
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* printf() and friends
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*
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* Etherboot's printf() functions understand the following subset of
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* the standard C printf()'s format specifiers:
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*
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* - Flag characters
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* - '#' - Alternate form (i.e. "0x" prefix)
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* - '0' - Zero-pad
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* - Field widths
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* - Length modifiers
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* - 'hh' - Signed / unsigned char
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* - 'h' - Signed / unsigned short
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* - 'l' - Signed / unsigned long
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* - 'll' - Signed / unsigned long long
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* - 'z' - Signed / unsigned size_t
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* - Conversion specifiers
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* - 'd' - Signed decimal
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* - 'x','X' - Unsigned hexadecimal
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* - 'c' - Character
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* - 's' - String
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* - 'p' - Pointer
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*
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* Hexadecimal numbers are always zero-padded to the specified field
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* width (if any); decimal numbers are always space-padded. Decimal
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* long longs are not supported.
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*
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*/
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FILE_LICENCE (GPL2_OR_LATER);
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#include <stdint.h>
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#include <stdarg.h>
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#include <stdio.h>
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/**
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* A printf context
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*
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* Contexts are used in order to be able to share code between
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* vprintf() and vsnprintf(), without requiring the allocation of a
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* buffer for vprintf().
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*/
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struct printf_context
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{
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/**
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* Character handler
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*
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* @v ctx Context
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* @v c Character
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*
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* This method is called for each character written to the
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* formatted string.
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*/
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void (* handler) (struct printf_context *ctx, unsigned int c);
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/** Length of formatted string
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*
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* When handler() is called, @len will be set to the number of
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* characters written so far (i.e. zero for the first call to
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* handler()).
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*/
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size_t len;
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};
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extern size_t vcprintf (struct printf_context *ctx, const char *fmt,
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va_list args);
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extern int vssnprintf (char *buf, ssize_t ssize, const char *fmt,
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va_list args);
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extern int __attribute__ ((format (printf, 3, 4)))
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ssnprintf (char *buf, ssize_t ssize, const char *fmt, ...);
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#endif /* _IPXE_VSPRINTF_H */
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