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15 September 2024, 17:36:52 UTC
Revision 9a85b489d84c2a63de21fd16830d7f1b8628e6b8 authored by James Hill on 26 December 2019, 01:53:08 UTC, committed by GitHub on 26 December 2019, 01:53:08 UTC 
Update INSTALL
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Tip revision: 9a85b489d84c2a63de21fd16830d7f1b8628e6b8 authored by James Hill on 26 December 2019, 01:53:08 UTC
Update INSTALL
Tip revision: 9a85b48
banned.h 
#ifndef BANNED_H
#define BANNED_H

/*
 * This header lists functions that have been banned from our code base,
 * because they're too easy to misuse (and even if used correctly,
 * complicate audits). Including this header turns them into compile-time
 * errors.
 */

#define BANNED(func) sorry_##func##_is_a_banned_function

#undef strcpy
#define strcpy(x,y) BANNED(strcpy)
#undef strcat
#define strcat(x,y) BANNED(strcat)
#undef strncpy
#define strncpy(x,y,n) BANNED(strncpy)
#undef strncat
#define strncat(x,y,n) BANNED(strncat)

#undef sprintf
#undef vsprintf
#ifdef HAVE_VARIADIC_MACROS
#define sprintf(...) BANNED(sprintf)
#define vsprintf(...) BANNED(vsprintf)
#else
#define sprintf(buf,fmt,arg) BANNED(sprintf)
#define vsprintf(buf,fmt,arg) BANNED(vsprintf)
#endif

#endif /* BANNED_H */
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