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upx/src/util/snprintf.h
2023-06-09 14:12:05 +02:00

89 lines
3.2 KiB
C++

/* snprintf.h --
This file is part of the UPX executable compressor.
Copyright (C) 1996-2023 Markus Franz Xaver Johannes Oberhumer
Copyright (C) 1996-2023 Laszlo Molnar
All Rights Reserved.
UPX and the UCL library are free software; you can redistribute them
and/or modify them under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Markus F.X.J. Oberhumer Laszlo Molnar
<markus@oberhumer.com> <ezerotven+github@gmail.com>
*/
#pragma once
/*************************************************************************
// UPX version of string functions, with assertions and sane limits
**************************************************************************/
// info: snprintf() returns length and NOT size, but max_size is indeed size (incl NUL)
int upx_safe_vsnprintf(char *str, upx_rsize_t max_size, const char *format, va_list ap);
int upx_safe_snprintf(char *str, upx_rsize_t max_size, const char *format, ...)
attribute_format(3, 4);
// malloc's *ptr
int upx_safe_vasprintf(char **ptr, const char *format, va_list ap);
int upx_safe_asprintf(char **ptr, const char *format, ...) attribute_format(2, 3);
// returns a malloc'd pointer
char *upx_safe_xprintf(const char *format, ...) attribute_format(1, 2);
upx_rsize_t upx_safe_strlen(const char *);
// globally redirect some functions
#undef strlen
#define strlen upx_safe_strlen
#undef snprintf
#undef sprintf
#undef vsnprintf
#define snprintf upx_safe_snprintf
#define sprintf ERROR_sprintf_IS_DANGEROUS_USE_snprintf
#define vsnprintf upx_safe_vsnprintf
/*************************************************************************
// some uchar string support functions to avoid casts
**************************************************************************/
forceinline uchar *strcpy(uchar *s1, const uchar *s2) {
return (uchar *) strcpy((char *) s1, (const char *) s2);
}
forceinline int strcmp(const uchar *s1, const char *s2) { return strcmp((const char *) s1, s2); }
forceinline int strcmp(const char *s1, const uchar *s2) { return strcmp(s1, (const char *) s2); }
forceinline int strcmp(const uchar *s1, const uchar *s2) {
return strcmp((const char *) s1, (const char *) s2);
}
forceinline int strcasecmp(const uchar *s1, const char *s2) {
return strcasecmp((const char *) s1, s2);
}
forceinline int strcasecmp(const char *s1, const uchar *s2) {
return strcasecmp(s1, (const char *) s2);
}
forceinline int strcasecmp(const uchar *s1, const uchar *s2) {
return strcasecmp((const char *) s1, (const char *) s2);
}
forceinline upx_rsize_t upx_safe_strlen(const uchar *s) {
return upx_safe_strlen((const char *) s);
}
/* vim:set ts=4 sw=4 et: */