Michael Schloh von Bennewitz
7 changed files with 587 additions and 69 deletions
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/*
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** cdefs.h: ISO C interface |
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** Most of this file was developed by Sendmail, Incorporated, so: |
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** |
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** Copyright (c) 2000-2002 Sendmail, Inc. and its suppliers. |
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** |
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** Permission to use, copy, modify, and distribute this software for |
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** any purpose with or without fee is hereby granted, provided that |
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** the above copyright notice and this permission notice appear in all |
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** copies. |
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** |
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** THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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** WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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** IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR |
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** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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** USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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** OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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** SUCH DAMAGE. |
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** |
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*/ |
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/*
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** libsm C language portability macros |
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** See libsm/cdefs.html for documentation. |
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*/ |
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#ifndef HOND_CDEFS_H |
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# define HOND_CDEFS_H |
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/*
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** BSD and Linux have <sys/cdefs.h> which defines a set of C language |
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** portability macros that are a defacto standard in the open source |
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** community. |
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*/ |
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# if HOND_CONF_SYS_CDEFS_H |
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# include <sys/cdefs.h> |
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# endif /* HOND_CONF_SYS_CDEFS_H */ |
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/*
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** Define the standard C language portability macros |
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** for platforms that lack <sys/cdefs.h>. |
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*/ |
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# if !HOND_CONF_SYS_CDEFS_H |
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# if defined(__cplusplus) |
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# define __BEGIN_DECLS extern "C" { |
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# define __END_DECLS }; |
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# else /* defined(__cplusplus) */ |
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# define __BEGIN_DECLS |
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# define __END_DECLS |
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# endif /* defined(__cplusplus) */ |
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# if defined(__STDC__) || defined(__cplusplus) |
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# ifndef __P |
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# define __P(protos) protos |
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# endif /* __P */ |
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# define __CONCAT(x,y) x ## y |
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# define __STRING(x) #x |
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# else /* defined(__STDC__) || defined(__cplusplus) */ |
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# define __P(protos) () |
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# define __CONCAT(x,y) x/**/y |
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# define __STRING(x) "x" |
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# define const |
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# define signed |
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# define volatile |
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# endif /* defined(__STDC__) || defined(__cplusplus) */ |
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# endif /* !HOND_CONF_SYS_CDEFS_H */ |
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/*
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** Define HOND_DEAD, a macro used to declare functions that do not return |
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** to their caller. |
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*/ |
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# ifndef HOND_DEAD |
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# if __GNUC__ >= 2 |
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# if __GNUC__ == 2 && __GNUC_MINOR__ < 5 |
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# define HOND_DEAD(proto) volatile proto |
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# else /* __GNUC__ == 2 && __GNUC_MINOR__ < 5 */ |
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# define HOND_DEAD(proto) proto __attribute__((__noreturn__)) |
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# endif /* __GNUC__ == 2 && __GNUC_MINOR__ < 5 */ |
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# else /* __GNUC__ >= 2 */ |
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# define HOND_DEAD(proto) proto |
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# endif /* __GNUC__ >= 2 */ |
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# endif /* HOND_DEAD */ |
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/*
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** Define HOND_UNUSED, a macro used to declare variables that may be unused. |
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*/ |
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# ifndef HOND_UNUSED |
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# if __GNUC__ >= 2 |
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# if __GNUC__ == 2 && __GNUC_MINOR__ < 7 |
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# define HOND_UNUSED(decl) decl |
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# else /* __GNUC__ == 2 && __GNUC_MINOR__ < 7 */ |
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# define HOND_UNUSED(decl) decl __attribute__((__unused__)) |
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# endif /* __GNUC__ == 2 && __GNUC_MINOR__ < 7 */ |
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# else /* __GNUC__ >= 2 */ |
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# define HOND_UNUSED(decl) decl |
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# endif /* __GNUC__ >= 2 */ |
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# endif /* HOND_UNUSED */ |
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/*
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** The HOND_NONVOLATILE macro is used to declare variables that are not |
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** volatile, but which must be declared volatile when compiling with |
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** gcc -O -Wall in order to suppress bogus warning messages. |
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** |
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** Variables that actually are volatile should be declared volatile |
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** using the "volatile" keyword. If a variable actually is volatile, |
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** then HOND_NONVOLATILE should not be used. |
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** |
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** To compile sendmail with gcc and see all non-bogus warnings, |
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** you should use |
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** gcc -O -Wall -DHOND_OMIT_BOGUS_WARNINGS ... |
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** Do not use -DHOND_OMIT_BOGUS_WARNINGS when compiling the production |
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** version of sendmail, because there is a performance hit. |
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*/ |
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# ifdef HOND_OMIT_BOGUS_WARNINGS |
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# define HOND_NONVOLATILE volatile |
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# else /* HOND_OMIT_BOGUS_WARNINGS */ |
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# define HOND_NONVOLATILE |
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# endif /* HOND_OMIT_BOGUS_WARNINGS */ |
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/*
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** Turn on format string argument checking. |
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*/ |
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# ifndef HOND_CONF_FORMAT_TEST |
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# if __GNUC__ == 2 && __GNUC_MINOR__ >= 7 |
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# define HOND_CONF_FORMAT_TEST 1 |
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# else /* __GNUC__ == 2 && __GNUC_MINOR__ >= 7 */ |
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# define HOND_CONF_FORMAT_TEST 0 |
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# endif /* __GNUC__ == 2 && __GNUC_MINOR__ >= 7 */ |
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# endif /* HOND_CONF_FORMAT_TEST */ |
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# ifndef PRINTFLIKE |
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# if HOND_CONF_FORMAT_TEST |
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# define PRINTFLIKE(x,y) __attribute__ ((__format__ (__printf__, x, y))) |
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# else /* HOND_CONF_FORMAT_TEST */ |
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# define PRINTFLIKE(x,y) |
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# endif /* HOND_CONF_FORMAT_TEST */ |
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# endif /* ! PRINTFLIKE */ |
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# ifndef SCANFLIKE |
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# if HOND_CONF_FORMAT_TEST |
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# define SCANFLIKE(x,y) __attribute__ ((__format__ (__scanf__, x, y))) |
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# else /* HOND_CONF_FORMAT_TEST */ |
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# define SCANFLIKE(x,y) |
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# endif /* HOND_CONF_FORMAT_TEST */ |
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# endif /* ! SCANFLIKE */ |
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#endif /* ! HOND_CDEFS_H */ |
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@ -0,0 +1,60 @@ |
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/*
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** setenv.c: ISO C implementation |
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** Copyright (c) 2003 Michael Schloh von Bennewitz <michael@schloh.com> |
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** Copyright (c) 2003 Cable & Wireless <http://www.cw.com/de/>
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** |
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** Permission to use, copy, modify, and distribute this software for |
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** any purpose with or without fee is hereby granted, provided that |
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** the above copyright notice and this permission notice appear in all |
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** copies. |
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** |
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** THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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** WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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** IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR |
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** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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** USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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** OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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** SUCH DAMAGE. |
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** |
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*/ |
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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#ifndef HAVE_SETENV |
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#include <stdlib.h> /* For putenv(3) and malloc(3) */ |
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#include <string.h> /* For strcpy(3) and strcat(3) */ |
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/*
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** Implements setenv C library function for platforms not including it |
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** |
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*/ |
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int setenv(const char *kszName, const char *kszValue, int nOverwrite) |
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{ |
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char *szPair = NULL; /* String we will pass to putenv(3) */ |
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/* Allocate space for name, value, equals, and string terminator */ |
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szPair = malloc(strlen(kszName) + strlen(kszValue) + strlen("=") + 1); |
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if (szPair == NULL) /* Memory error */ |
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return 1; /* Unsuccessful */ |
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/* Copy the incoming variables */ |
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strcpy(szPair, kszName); |
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strcat(szPair, "="); |
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strcat(szPair, kszValue); |
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if (getenv(szPair) != NULL) |
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putenv(szPair); /* Handoff */ |
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return 0; /* Success */ |
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} |
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#endif /* !HAVE_SETENV */ |
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@ -0,0 +1,29 @@ |
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/*
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** setenv.h: ISO C interface |
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** Copyright (c) 2003 Michael Schloh von Bennewitz <michael@schloh.com> |
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** Copyright (c) 2003 Cable & Wireless <http://www.cw.com/de/>
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** |
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** Permission to use, copy, modify, and distribute this software for |
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|
** any purpose with or without fee is hereby granted, provided that |
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** the above copyright notice and this permission notice appear in all |
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|
** copies. |
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|
** |
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** THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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|
** WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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|
** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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|
** IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR |
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|
** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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|
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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|
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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** USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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** OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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** SUCH DAMAGE. |
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** |
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*/ |
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#ifndef HOND_SETENV_H |
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# define HOND_SETENV_H |
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int setenv(const char *kszName, const char *kszValue, int nOverwrite); |
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#endif /* not HOND_SETENV_H */ |
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