X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fxalloc.h;h=0eecda5b0ba7b6d1d40c05a5869ec7e27c0db309;hp=952f9217b953399d4de0cafb7da2917fba9474d4;hb=3fae14fae5a347823679ef694ab630b4991a201d;hpb=68f4ca711593416d0defd81199b176ba604c6cb1 diff --git a/src/xalloc.h b/src/xalloc.h index 952f9217..0eecda5b 100644 --- a/src/xalloc.h +++ b/src/xalloc.h @@ -1,29 +1,97 @@ -#include - -#ifndef PARAMS -# if defined PROTOTYPES || (defined __STDC__ && __STDC__) -# define PARAMS(Args) Args -# else -# define PARAMS(Args) () -# endif -#endif +#ifndef TINC_XALLOC_H +#define TINC_XALLOC_H + +/* + xalloc.h -- malloc and related fuctions with out of memory checking + Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc. + Copyright (C) 2011-2017 Guus Sliepen + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, 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; if not, write to the Free Software Foundation, Inc., Foundation, + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +static inline void *xmalloc(size_t n) __attribute__((__malloc__)); +static inline void *xmalloc(size_t n) { + void *p = malloc(n); + + if(!p) { + abort(); + } + + return p; +} + +static inline void *xmalloc_and_zero(size_t n) __attribute__((__malloc__)); +static inline void *xmalloc_and_zero(size_t n) { + void *p = calloc(1, n); + + if(!p) { + abort(); + } -/* Exit value when the requested amount of memory is not available. - The caller may set it to some other value. */ -extern int xalloc_exit_failure; + return p; +} -/* FIXME: describe */ -extern char *const xalloc_msg_memory_exhausted; +static inline void *xrealloc(void *p, size_t n) { + p = realloc(p, n); -/* FIXME: describe */ -extern void (*xalloc_fail_func) (int); + if(!p) { + abort(); + } -void *xmalloc PARAMS ((size_t n)) __attribute__ ((__malloc__)); -void *xmalloc_and_zero PARAMS ((size_t n)) __attribute__ ((__malloc__)); -void *xcalloc PARAMS ((size_t n, size_t s)); -void *xrealloc PARAMS ((void *p, size_t n)) __attribute__ ((__malloc__)); + return p; +} -char *xstrdup PARAMS ((const char *s)) __attribute__ ((__malloc__)); +static inline char *xstrdup(const char *s) __attribute__((__malloc__)); +static inline char *xstrdup(const char *s) { + char *p = strdup(s); -extern int xasprintf(char **strp, const char *fmt, ...); -extern int xvasprintf(char **strp, const char *fmt, va_list ap); + if(!p) { + abort(); + } + + return p; +} + +static inline int xvasprintf(char **strp, const char *fmt, va_list ap) { +#ifdef HAVE_MINGW + char buf[1024]; + int result = vsnprintf(buf, sizeof(buf), fmt, ap); + + if(result < 0) { + abort(); + } + + *strp = xstrdup(buf); +#else + int result = vasprintf(strp, fmt, ap); + + if(result < 0) { + abort(); + } + +#endif + return result; +} + +static inline int xasprintf(char **strp, const char *fmt, ...) __attribute__((__format__(printf, 2, 3))); +static inline int xasprintf(char **strp, const char *fmt, ...) { + va_list ap; + va_start(ap, fmt); + int result = xvasprintf(strp, fmt, ap); + va_end(ap); + return result; +} + +#endif