17c478bd9Sstevel@tonic-gate /* 2*4aac33d3Sjbeck * Copyright (c) 2000-2003, 2007 Sendmail, Inc. and its suppliers. 37c478bd9Sstevel@tonic-gate * All rights reserved. 47c478bd9Sstevel@tonic-gate * 57c478bd9Sstevel@tonic-gate * By using this file, you agree to the terms and conditions set 67c478bd9Sstevel@tonic-gate * forth in the LICENSE file which can be found at the top level of 77c478bd9Sstevel@tonic-gate * the sendmail distribution. 87c478bd9Sstevel@tonic-gate * 97c478bd9Sstevel@tonic-gate */ 107c478bd9Sstevel@tonic-gate 117c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 127c478bd9Sstevel@tonic-gate 137c478bd9Sstevel@tonic-gate #include <sm/gen.h> 14*4aac33d3Sjbeck SM_RCSID("@(#)$Id: config.c,v 1.31 2007/03/14 21:21:49 ca Exp $") 157c478bd9Sstevel@tonic-gate 167c478bd9Sstevel@tonic-gate #include <stdlib.h> 177c478bd9Sstevel@tonic-gate #include <sm/heap.h> 187c478bd9Sstevel@tonic-gate #include <sm/string.h> 197c478bd9Sstevel@tonic-gate #include <sm/conf.h> 207c478bd9Sstevel@tonic-gate 217c478bd9Sstevel@tonic-gate /* 227c478bd9Sstevel@tonic-gate ** PUTENV -- emulation of putenv() in terms of setenv() 237c478bd9Sstevel@tonic-gate ** 247c478bd9Sstevel@tonic-gate ** Not needed on Posix-compliant systems. 257c478bd9Sstevel@tonic-gate ** This doesn't have full Posix semantics, but it's good enough 267c478bd9Sstevel@tonic-gate ** for sendmail. 277c478bd9Sstevel@tonic-gate ** 287c478bd9Sstevel@tonic-gate ** Parameter: 297c478bd9Sstevel@tonic-gate ** env -- the environment to put. 307c478bd9Sstevel@tonic-gate ** 317c478bd9Sstevel@tonic-gate ** Returns: 327c478bd9Sstevel@tonic-gate ** 0 on success, < 0 on failure. 337c478bd9Sstevel@tonic-gate */ 347c478bd9Sstevel@tonic-gate 357c478bd9Sstevel@tonic-gate #if NEEDPUTENV 367c478bd9Sstevel@tonic-gate 377c478bd9Sstevel@tonic-gate # if NEEDPUTENV == 2 /* no setenv(3) call available */ 387c478bd9Sstevel@tonic-gate 397c478bd9Sstevel@tonic-gate int 407c478bd9Sstevel@tonic-gate putenv(str) 417c478bd9Sstevel@tonic-gate char *str; 427c478bd9Sstevel@tonic-gate { 437c478bd9Sstevel@tonic-gate char **current; 447c478bd9Sstevel@tonic-gate int matchlen, envlen = 0; 457c478bd9Sstevel@tonic-gate char *tmp; 467c478bd9Sstevel@tonic-gate char **newenv; 477c478bd9Sstevel@tonic-gate static bool first = true; 487c478bd9Sstevel@tonic-gate extern char **environ; 497c478bd9Sstevel@tonic-gate 507c478bd9Sstevel@tonic-gate /* 517c478bd9Sstevel@tonic-gate ** find out how much of str to match when searching 527c478bd9Sstevel@tonic-gate ** for a string to replace. 537c478bd9Sstevel@tonic-gate */ 547c478bd9Sstevel@tonic-gate 557c478bd9Sstevel@tonic-gate if ((tmp = strchr(str, '=')) == NULL || tmp == str) 567c478bd9Sstevel@tonic-gate matchlen = strlen(str); 577c478bd9Sstevel@tonic-gate else 587c478bd9Sstevel@tonic-gate matchlen = (int) (tmp - str); 597c478bd9Sstevel@tonic-gate ++matchlen; 607c478bd9Sstevel@tonic-gate 617c478bd9Sstevel@tonic-gate /* 627c478bd9Sstevel@tonic-gate ** Search for an existing string in the environment and find the 637c478bd9Sstevel@tonic-gate ** length of environ. If found, replace and exit. 647c478bd9Sstevel@tonic-gate */ 657c478bd9Sstevel@tonic-gate 667c478bd9Sstevel@tonic-gate for (current = environ; *current != NULL; current++) 677c478bd9Sstevel@tonic-gate { 687c478bd9Sstevel@tonic-gate ++envlen; 697c478bd9Sstevel@tonic-gate 707c478bd9Sstevel@tonic-gate if (strncmp(str, *current, matchlen) == 0) 717c478bd9Sstevel@tonic-gate { 727c478bd9Sstevel@tonic-gate /* found it, now insert the new version */ 737c478bd9Sstevel@tonic-gate *current = (char *) str; 747c478bd9Sstevel@tonic-gate return 0; 757c478bd9Sstevel@tonic-gate } 767c478bd9Sstevel@tonic-gate } 777c478bd9Sstevel@tonic-gate 787c478bd9Sstevel@tonic-gate /* 797c478bd9Sstevel@tonic-gate ** There wasn't already a slot so add space for a new slot. 807c478bd9Sstevel@tonic-gate ** If this is our first time through, use malloc(), else realloc(). 817c478bd9Sstevel@tonic-gate */ 827c478bd9Sstevel@tonic-gate 837c478bd9Sstevel@tonic-gate if (first) 847c478bd9Sstevel@tonic-gate { 857c478bd9Sstevel@tonic-gate newenv = (char **) sm_malloc(sizeof(char *) * (envlen + 2)); 867c478bd9Sstevel@tonic-gate if (newenv == NULL) 877c478bd9Sstevel@tonic-gate return -1; 887c478bd9Sstevel@tonic-gate 897c478bd9Sstevel@tonic-gate first = false; 907c478bd9Sstevel@tonic-gate (void) memcpy(newenv, environ, sizeof(char *) * envlen); 917c478bd9Sstevel@tonic-gate } 927c478bd9Sstevel@tonic-gate else 937c478bd9Sstevel@tonic-gate { 947c478bd9Sstevel@tonic-gate newenv = (char **) sm_realloc((char *) environ, 957c478bd9Sstevel@tonic-gate sizeof(char *) * (envlen + 2)); 967c478bd9Sstevel@tonic-gate if (newenv == NULL) 977c478bd9Sstevel@tonic-gate return -1; 987c478bd9Sstevel@tonic-gate } 997c478bd9Sstevel@tonic-gate 1007c478bd9Sstevel@tonic-gate /* actually add in the new entry */ 1017c478bd9Sstevel@tonic-gate environ = newenv; 1027c478bd9Sstevel@tonic-gate environ[envlen] = (char *) str; 1037c478bd9Sstevel@tonic-gate environ[envlen + 1] = NULL; 1047c478bd9Sstevel@tonic-gate 1057c478bd9Sstevel@tonic-gate return 0; 1067c478bd9Sstevel@tonic-gate } 1077c478bd9Sstevel@tonic-gate 1087c478bd9Sstevel@tonic-gate # else /* NEEDPUTENV == 2 */ 1097c478bd9Sstevel@tonic-gate 1107c478bd9Sstevel@tonic-gate int 1117c478bd9Sstevel@tonic-gate putenv(env) 1127c478bd9Sstevel@tonic-gate char *env; 1137c478bd9Sstevel@tonic-gate { 1147c478bd9Sstevel@tonic-gate char *p; 1157c478bd9Sstevel@tonic-gate int l; 1167c478bd9Sstevel@tonic-gate char nbuf[100]; 1177c478bd9Sstevel@tonic-gate 1187c478bd9Sstevel@tonic-gate p = strchr(env, '='); 1197c478bd9Sstevel@tonic-gate if (p == NULL) 1207c478bd9Sstevel@tonic-gate return 0; 1217c478bd9Sstevel@tonic-gate l = p - env; 1227c478bd9Sstevel@tonic-gate if (l > sizeof nbuf - 1) 1237c478bd9Sstevel@tonic-gate l = sizeof nbuf - 1; 1247c478bd9Sstevel@tonic-gate memmove(nbuf, env, l); 1257c478bd9Sstevel@tonic-gate nbuf[l] = '\0'; 1267c478bd9Sstevel@tonic-gate return setenv(nbuf, ++p, 1); 1277c478bd9Sstevel@tonic-gate } 1287c478bd9Sstevel@tonic-gate 1297c478bd9Sstevel@tonic-gate # endif /* NEEDPUTENV == 2 */ 1307c478bd9Sstevel@tonic-gate #endif /* NEEDPUTENV */ 1317c478bd9Sstevel@tonic-gate /* 1327c478bd9Sstevel@tonic-gate ** UNSETENV -- remove a variable from the environment 1337c478bd9Sstevel@tonic-gate ** 1347c478bd9Sstevel@tonic-gate ** Not needed on newer systems. 1357c478bd9Sstevel@tonic-gate ** 1367c478bd9Sstevel@tonic-gate ** Parameters: 1377c478bd9Sstevel@tonic-gate ** name -- the string name of the environment variable to be 1387c478bd9Sstevel@tonic-gate ** deleted from the current environment. 1397c478bd9Sstevel@tonic-gate ** 1407c478bd9Sstevel@tonic-gate ** Returns: 1417c478bd9Sstevel@tonic-gate ** none. 1427c478bd9Sstevel@tonic-gate ** 1437c478bd9Sstevel@tonic-gate ** Globals: 1447c478bd9Sstevel@tonic-gate ** environ -- a pointer to the current environment. 1457c478bd9Sstevel@tonic-gate ** 1467c478bd9Sstevel@tonic-gate ** Side Effects: 1477c478bd9Sstevel@tonic-gate ** Modifies environ. 1487c478bd9Sstevel@tonic-gate */ 1497c478bd9Sstevel@tonic-gate 1507c478bd9Sstevel@tonic-gate #if !HASUNSETENV 1517c478bd9Sstevel@tonic-gate 1527c478bd9Sstevel@tonic-gate void 1537c478bd9Sstevel@tonic-gate unsetenv(name) 1547c478bd9Sstevel@tonic-gate char *name; 1557c478bd9Sstevel@tonic-gate { 1567c478bd9Sstevel@tonic-gate extern char **environ; 1577c478bd9Sstevel@tonic-gate register char **pp; 1587c478bd9Sstevel@tonic-gate int len = strlen(name); 1597c478bd9Sstevel@tonic-gate 1607c478bd9Sstevel@tonic-gate for (pp = environ; *pp != NULL; pp++) 1617c478bd9Sstevel@tonic-gate { 1627c478bd9Sstevel@tonic-gate if (strncmp(name, *pp, len) == 0 && 1637c478bd9Sstevel@tonic-gate ((*pp)[len] == '=' || (*pp)[len] == '\0')) 1647c478bd9Sstevel@tonic-gate break; 1657c478bd9Sstevel@tonic-gate } 1667c478bd9Sstevel@tonic-gate 1677c478bd9Sstevel@tonic-gate for (; *pp != NULL; pp++) 1687c478bd9Sstevel@tonic-gate *pp = pp[1]; 1697c478bd9Sstevel@tonic-gate } 1707c478bd9Sstevel@tonic-gate 1717c478bd9Sstevel@tonic-gate #endif /* !HASUNSETENV */ 1727c478bd9Sstevel@tonic-gate 1737c478bd9Sstevel@tonic-gate char *SmCompileOptions[] = 1747c478bd9Sstevel@tonic-gate { 1757c478bd9Sstevel@tonic-gate #if SM_CONF_BROKEN_STRTOD 1767c478bd9Sstevel@tonic-gate "SM_CONF_BROKEN_STRTOD", 1777c478bd9Sstevel@tonic-gate #endif /* SM_CONF_BROKEN_STRTOD */ 1787c478bd9Sstevel@tonic-gate #if SM_CONF_GETOPT 1797c478bd9Sstevel@tonic-gate "SM_CONF_GETOPT", 1807c478bd9Sstevel@tonic-gate #endif /* SM_CONF_GETOPT */ 1817c478bd9Sstevel@tonic-gate #if SM_CONF_LDAP_INITIALIZE 1827c478bd9Sstevel@tonic-gate "SM_CONF_LDAP_INITIALIZE", 1837c478bd9Sstevel@tonic-gate #endif /* SM_CONF_LDAP_INITIALIZE */ 1847c478bd9Sstevel@tonic-gate #if SM_CONF_LDAP_MEMFREE 1857c478bd9Sstevel@tonic-gate "SM_CONF_LDAP_MEMFREE", 1867c478bd9Sstevel@tonic-gate #endif /* SM_CONF_LDAP_MEMFREE */ 1877c478bd9Sstevel@tonic-gate #if SM_CONF_LONGLONG 1887c478bd9Sstevel@tonic-gate "SM_CONF_LONGLONG", 1897c478bd9Sstevel@tonic-gate #endif /* SM_CONF_LONGLONG */ 1907c478bd9Sstevel@tonic-gate #if SM_CONF_MEMCHR 1917c478bd9Sstevel@tonic-gate "SM_CONF_MEMCHR", 1927c478bd9Sstevel@tonic-gate #endif /* SM_CONF_MEMCHR */ 1937c478bd9Sstevel@tonic-gate #if SM_CONF_MSG 1947c478bd9Sstevel@tonic-gate "SM_CONF_MSG", 1957c478bd9Sstevel@tonic-gate #endif /* SM_CONF_MSG */ 1967c478bd9Sstevel@tonic-gate #if SM_CONF_QUAD_T 1977c478bd9Sstevel@tonic-gate "SM_CONF_QUAD_T", 1987c478bd9Sstevel@tonic-gate #endif /* SM_CONF_QUAD_T */ 1997c478bd9Sstevel@tonic-gate #if SM_CONF_SEM 2007c478bd9Sstevel@tonic-gate "SM_CONF_SEM", 2017c478bd9Sstevel@tonic-gate #endif /* SM_CONF_SEM */ 2027c478bd9Sstevel@tonic-gate #if SM_CONF_SETITIMER 2037c478bd9Sstevel@tonic-gate "SM_CONF_SETITIMER", 2047c478bd9Sstevel@tonic-gate #endif /* SM_CONF_SETITIMER */ 2057c478bd9Sstevel@tonic-gate #if SM_CONF_SIGSETJMP 2067c478bd9Sstevel@tonic-gate "SM_CONF_SIGSETJMP", 2077c478bd9Sstevel@tonic-gate #endif /* SM_CONF_SIGSETJMP */ 2087c478bd9Sstevel@tonic-gate #if SM_CONF_SHM 2097c478bd9Sstevel@tonic-gate "SM_CONF_SHM", 2107c478bd9Sstevel@tonic-gate #endif /* SM_CONF_SHM */ 2117c478bd9Sstevel@tonic-gate #if SM_CONF_SHM_DELAY 2127c478bd9Sstevel@tonic-gate "SM_CONF_SHM_DELAY", 2137c478bd9Sstevel@tonic-gate #endif /* SM_CONF_SHM_DELAY */ 2147c478bd9Sstevel@tonic-gate #if SM_CONF_SSIZE_T 2157c478bd9Sstevel@tonic-gate "SM_CONF_SSIZE_T", 2167c478bd9Sstevel@tonic-gate #endif /* SM_CONF_SSIZE_T */ 2177c478bd9Sstevel@tonic-gate #if SM_CONF_STDBOOL_H 2187c478bd9Sstevel@tonic-gate "SM_CONF_STDBOOL_H", 2197c478bd9Sstevel@tonic-gate #endif /* SM_CONF_STDBOOL_H */ 2207c478bd9Sstevel@tonic-gate #if SM_CONF_STDDEF_H 2217c478bd9Sstevel@tonic-gate "SM_CONF_STDDEF_H", 2227c478bd9Sstevel@tonic-gate #endif /* SM_CONF_STDDEF_H */ 2237c478bd9Sstevel@tonic-gate 2247c478bd9Sstevel@tonic-gate #if 0 2257c478bd9Sstevel@tonic-gate /* XXX this is always enabled (for now) */ 2267c478bd9Sstevel@tonic-gate #if SM_CONF_STRL 2277c478bd9Sstevel@tonic-gate "SM_CONF_STRL", 2287c478bd9Sstevel@tonic-gate #endif /* SM_CONF_STRL */ 2297c478bd9Sstevel@tonic-gate #endif /* 0 */ 2307c478bd9Sstevel@tonic-gate 2317c478bd9Sstevel@tonic-gate #if SM_CONF_SYS_CDEFS_H 2327c478bd9Sstevel@tonic-gate "SM_CONF_SYS_CDEFS_H", 2337c478bd9Sstevel@tonic-gate #endif /* SM_CONF_SYS_CDEFS_H */ 2347c478bd9Sstevel@tonic-gate #if SM_CONF_SYSEXITS_H 2357c478bd9Sstevel@tonic-gate "SM_CONF_SYSEXITS_H", 2367c478bd9Sstevel@tonic-gate #endif /* SM_CONF_SYSEXITS_H */ 2377c478bd9Sstevel@tonic-gate #if SM_CONF_UID_GID 2387c478bd9Sstevel@tonic-gate "SM_CONF_UID_GID", 2397c478bd9Sstevel@tonic-gate #endif /* SM_CONF_UID_GID */ 2407c478bd9Sstevel@tonic-gate #if DO_NOT_USE_STRCPY 2417c478bd9Sstevel@tonic-gate "DO_NOT_USE_STRCPY", 2427c478bd9Sstevel@tonic-gate #endif /* DO_NOT_USE_STRCPY */ 2437c478bd9Sstevel@tonic-gate #if SM_HEAP_CHECK 2447c478bd9Sstevel@tonic-gate "SM_HEAP_CHECK", 2457c478bd9Sstevel@tonic-gate #endif /* SM_HEAP_CHECK */ 2467c478bd9Sstevel@tonic-gate #if defined(SM_OS_NAME) && defined(__STDC__) 2477c478bd9Sstevel@tonic-gate "SM_OS=sm_os_" SM_OS_NAME, 2487c478bd9Sstevel@tonic-gate #endif /* defined(SM_OS_NAME) && defined(__STDC__) */ 2497c478bd9Sstevel@tonic-gate #if SM_VA_STD 2507c478bd9Sstevel@tonic-gate "SM_VA_STD", 2517c478bd9Sstevel@tonic-gate #endif /* SM_VA_STD */ 252*4aac33d3Sjbeck #if USEKSTAT 253*4aac33d3Sjbeck "USEKSTAT", 254*4aac33d3Sjbeck #endif /* USEKSTAT */ 255*4aac33d3Sjbeck #if USEPROCMEMINFO 256*4aac33d3Sjbeck "USEPROCMEMINFO", 257*4aac33d3Sjbeck #endif /* USEPROCMEMINFO */ 258*4aac33d3Sjbeck #if USESWAPCTL 259*4aac33d3Sjbeck "USESWAPCTL", 260*4aac33d3Sjbeck #endif /* USESWAPCTL */ 2617c478bd9Sstevel@tonic-gate NULL 2627c478bd9Sstevel@tonic-gate }; 263