/* * Copyright (c) 2000-2003 Sendmail, Inc. and its suppliers. * All rights reserved. * * By using this file, you agree to the terms and conditions set * forth in the LICENSE file which can be found at the top level of * the sendmail distribution. * */ #include SM_RCSID("@(#)$Id: config.c,v 1.27.2.1 2003/03/06 02:16:24 ca Exp $") #include #include #include #include /* ** PUTENV -- emulation of putenv() in terms of setenv() ** ** Not needed on Posix-compliant systems. ** This doesn't have full Posix semantics, but it's good enough ** for sendmail. ** ** Parameter: ** env -- the environment to put. ** ** Returns: ** 0 on success, < 0 on failure. */ #if NEEDPUTENV # if NEEDPUTENV == 2 /* no setenv(3) call available */ int putenv(str) char *str; { char **current; int matchlen, envlen = 0; char *tmp; char **newenv; static bool first = true; extern char **environ; /* ** find out how much of str to match when searching ** for a string to replace. */ if ((tmp = strchr(str, '=')) == NULL || tmp == str) matchlen = strlen(str); else matchlen = (int) (tmp - str); ++matchlen; /* ** Search for an existing string in the environment and find the ** length of environ. If found, replace and exit. */ for (current = environ; *current != NULL; current++) { ++envlen; if (strncmp(str, *current, matchlen) == 0) { /* found it, now insert the new version */ *current = (char *) str; return 0; } } /* ** There wasn't already a slot so add space for a new slot. ** If this is our first time through, use malloc(), else realloc(). */ if (first) { newenv = (char **) sm_malloc(sizeof(char *) * (envlen + 2)); if (newenv == NULL) return -1; first = false; (void) memcpy(newenv, environ, sizeof(char *) * envlen); } else { newenv = (char **) sm_realloc((char *) environ, sizeof(char *) * (envlen + 2)); if (newenv == NULL) return -1; } /* actually add in the new entry */ environ = newenv; environ[envlen] = (char *) str; environ[envlen + 1] = NULL; return 0; } # else /* NEEDPUTENV == 2 */ int putenv(env) char *env; { char *p; int l; char nbuf[100]; p = strchr(env, '='); if (p == NULL) return 0; l = p - env; if (l > sizeof nbuf - 1) l = sizeof nbuf - 1; memmove(nbuf, env, l); nbuf[l] = '\0'; return setenv(nbuf, ++p, 1); } # endif /* NEEDPUTENV == 2 */ #endif /* NEEDPUTENV */ /* ** UNSETENV -- remove a variable from the environment ** ** Not needed on newer systems. ** ** Parameters: ** name -- the string name of the environment variable to be ** deleted from the current environment. ** ** Returns: ** none. ** ** Globals: ** environ -- a pointer to the current environment. ** ** Side Effects: ** Modifies environ. */ #if !HASUNSETENV void unsetenv(name) char *name; { extern char **environ; register char **pp; int len = strlen(name); for (pp = environ; *pp != NULL; pp++) { if (strncmp(name, *pp, len) == 0 && ((*pp)[len] == '=' || (*pp)[len] == '\0')) break; } for (; *pp != NULL; pp++) *pp = pp[1]; } #endif /* !HASUNSETENV */ char *SmCompileOptions[] = { #if SM_CONF_BROKEN_STRTOD "SM_CONF_BROKEN_STRTOD", #endif /* SM_CONF_BROKEN_STRTOD */ #if SM_CONF_GETOPT "SM_CONF_GETOPT", #endif /* SM_CONF_GETOPT */ #if SM_CONF_LDAP_MEMFREE "SM_CONF_LDAP_MEMFREE", #endif /* SM_CONF_LDAP_MEMFREE */ #if SM_CONF_LONGLONG "SM_CONF_LONGLONG", #endif /* SM_CONF_LONGLONG */ #if SM_CONF_MEMCHR "SM_CONF_MEMCHR", #endif /* SM_CONF_MEMCHR */ #if SM_CONF_MSG "SM_CONF_MSG", #endif /* SM_CONF_MSG */ #if SM_CONF_QUAD_T "SM_CONF_QUAD_T", #endif /* SM_CONF_QUAD_T */ #if SM_CONF_SEM "SM_CONF_SEM", #endif /* SM_CONF_SEM */ #if SM_CONF_SETITIMER "SM_CONF_SETITIMER", #endif /* SM_CONF_SETITIMER */ #if SM_CONF_SIGSETJMP "SM_CONF_SIGSETJMP", #endif /* SM_CONF_SIGSETJMP */ #if SM_CONF_SHM "SM_CONF_SHM", #endif /* SM_CONF_SHM */ #if SM_CONF_SHM_DELAY "SM_CONF_SHM_DELAY", #endif /* SM_CONF_SHM_DELAY */ #if SM_CONF_SSIZE_T "SM_CONF_SSIZE_T", #endif /* SM_CONF_SSIZE_T */ #if SM_CONF_STDBOOL_H "SM_CONF_STDBOOL_H", #endif /* SM_CONF_STDBOOL_H */ #if SM_CONF_STDDEF_H "SM_CONF_STDDEF_H", #endif /* SM_CONF_STDDEF_H */ #if 0 /* XXX this is always enabled (for now) */ #if SM_CONF_STRL "SM_CONF_STRL", #endif /* SM_CONF_STRL */ #endif /* 0 */ #if SM_CONF_SYS_CDEFS_H "SM_CONF_SYS_CDEFS_H", #endif /* SM_CONF_SYS_CDEFS_H */ #if SM_CONF_SYSEXITS_H "SM_CONF_SYSEXITS_H", #endif /* SM_CONF_SYSEXITS_H */ #if SM_CONF_UID_GID "SM_CONF_UID_GID", #endif /* SM_CONF_UID_GID */ #if SM_HEAP_CHECK "SM_HEAP_CHECK", #endif /* SM_HEAP_CHECK */ #if defined(SM_OS_NAME) && defined(__STDC__) "SM_OS=sm_os_" SM_OS_NAME, #endif /* defined(SM_OS_NAME) && defined(__STDC__) */ #if SM_VA_STD "SM_VA_STD", #endif /* SM_VA_STD */ NULL };