/* * Copyright (c) 1999, 2006 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include <sys/param.h> #include <sys/sysctl.h> #include <errno.h> #include <paths.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <stdio.h> /* for P_tmpdir */ #include <dirhelper_priv.h> extern char *_dirhelper(dirhelper_which_t which, char *path, size_t pathlen); #if __DARWIN_UNIX03 #define CONFSTR_ERR_RET 0 #else /* !__DARWIN_UNIX03 */ #define CONFSTR_ERR_RET -1 #endif /* __DARWIN_UNIX03 */ size_t confstr(name, buf, len) int name; char *buf; size_t len; { size_t tlen; int mib[2], sverrno; char *p; switch (name) { case _CS_PATH: mib[0] = CTL_USER; mib[1] = USER_CS_PATH; if (sysctl(mib, 2, NULL, &tlen, NULL, 0) == -1) return (CONFSTR_ERR_RET); if (len != 0 && buf != NULL) { if ((p = malloc(tlen)) == NULL) return (CONFSTR_ERR_RET); if (sysctl(mib, 2, p, &tlen, NULL, 0) == -1) { sverrno = errno; free(p); errno = sverrno; return (CONFSTR_ERR_RET); } /* * POSIX 1003.2 requires partial return of * the string -- that should be *real* useful. */ (void)strncpy(buf, p, len - 1); buf[len - 1] = '\0'; free(p); } return (tlen); case _CS_POSIX_V6_ILP32_OFF32_CFLAGS: case _CS_XBS5_ILP32_OFF32_CFLAGS: /* legacy */ case _CS_POSIX_V6_ILP32_OFF32_LDFLAGS: case _CS_XBS5_ILP32_OFF32_LDFLAGS: /* legacy */ case _CS_POSIX_V6_ILP32_OFF32_LIBS: case _CS_XBS5_ILP32_OFF32_LIBS: /* legacy */ case _CS_XBS5_ILP32_OFF32_LINTFLAGS: /* legacy */ case _CS_POSIX_V6_ILP32_OFFBIG_LIBS: case _CS_XBS5_ILP32_OFFBIG_LIBS: /* legacy */ case _CS_XBS5_ILP32_OFFBIG_LINTFLAGS: /* legacy */ case _CS_POSIX_V6_LP64_OFF64_LIBS: case _CS_XBS5_LP64_OFF64_LIBS: /* legacy */ case _CS_XBS5_LP64_OFF64_LINTFLAGS: /* legacy */ case _CS_POSIX_V6_LPBIG_OFFBIG_LIBS: case _CS_XBS5_LPBIG_OFFBIG_LIBS: /* legacy */ case _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS: /* legacy */ /* No special flags... yet */ p = ""; goto docopy; case _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS: case _CS_XBS5_ILP32_OFFBIG_CFLAGS: /* legacy */ case _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS: case _CS_XBS5_ILP32_OFFBIG_LDFLAGS: /* legacy */ p = "-W 32"; goto docopy; case _CS_POSIX_V6_LP64_OFF64_CFLAGS: case _CS_XBS5_LP64_OFF64_CFLAGS: /* legacy */ case _CS_POSIX_V6_LP64_OFF64_LDFLAGS: case _CS_XBS5_LP64_OFF64_LDFLAGS: /* legacy */ case _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS: case _CS_XBS5_LPBIG_OFFBIG_CFLAGS: /* legacy */ case _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS: case _CS_XBS5_LPBIG_OFFBIG_LDFLAGS: /* legacy */ p = "-W 64"; goto docopy; case _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS: if (sizeof(long) >= 8) p = "_POSIX_V6_LP64_OFF64"; else p = "_POSIX_V6_ILP32_OFFBIG"; docopy: if (len != 0 && buf != NULL) strlcpy(buf, p, len); return (strlen(p) + 1); case _CS_DARWIN_USER_DIR: if ((p = alloca(PATH_MAX)) == NULL) { errno = ENOMEM; return (CONFSTR_ERR_RET); } if (_dirhelper(DIRHELPER_USER_LOCAL, p, PATH_MAX) == NULL) { if (errno != ENOMEM) errno = EIO; return (CONFSTR_ERR_RET); } goto docopy; case _CS_DARWIN_USER_TEMP_DIR: if ((p = alloca(PATH_MAX)) == NULL) { errno = ENOMEM; return (CONFSTR_ERR_RET); } if (_dirhelper(DIRHELPER_USER_LOCAL_TEMP, p, PATH_MAX) == NULL) { int dh_errno = errno; /* * If _dirhelper() fails, try TMPDIR and P_tmpdir, * finally failing otherwise. */ if ((p = getenv("TMPDIR")) && access(p, W_OK) == 0) goto docopy; if (access(p = P_tmpdir, W_OK) == 0) goto docopy; if (dh_errno == ENOMEM) errno = ENOMEM; else errno = EIO; return (CONFSTR_ERR_RET); } goto docopy; case _CS_DARWIN_USER_CACHE_DIR: if ((p = alloca(PATH_MAX)) == NULL) { errno = ENOMEM; return (CONFSTR_ERR_RET); } if (_dirhelper(DIRHELPER_USER_LOCAL_CACHE, p, PATH_MAX) == NULL) { if (errno != ENOMEM) errno = EIO; return (CONFSTR_ERR_RET); } goto docopy; default: errno = EINVAL; return (0); } /* NOTREACHED */ }