/*
- * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1999, 2006 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
- *
* 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
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
+#include <stdio.h> /* for P_tmpdir */
+
+#ifndef __has_include
+#include <dirhelper_priv.h>
+#else
+#if __has_include(<dirhelper_priv.h>)
+#include <dirhelper_priv.h>
+#else
+typedef enum {
+ DIRHELPER_USER_LOCAL = 0,
+ DIRHELPER_USER_LOCAL_TEMP,
+ DIRHELPER_USER_LOCAL_CACHE,
+ DIRHELPER_USER_LOCAL_LAST = DIRHELPER_USER_LOCAL_CACHE
+} dirhelper_which_t;
+#endif
+#endif
+
+#include "libc_private.h"
+
+#if __DARWIN_UNIX03
+static char *(*__dirhelper_func)(int, char *, size_t);
+
+__attribute__((__visibility__("hidden")))
+void
+__confstr_init(const struct _libc_functions *funcs)
+{
+ __dirhelper_func = funcs->dirhelper;
+}
+
+__attribute__((__visibility__("hidden")))
+char *
+__dirhelper(dirhelper_which_t which, char *path, size_t pathlen)
+{
+ if (__dirhelper_func) {
+ return __dirhelper_func(which, path, pathlen);
+ } else {
+ return NULL;
+ }
+}
+#else // !__DARWIN_UNIX03
+__attribute__((__visibility__("hidden")))
+char *__dirhelper(dirhelper_which_t which, char *path, size_t pathlen);
+#endif // !__DARWIN_UNIX03
+
+#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)
mib[0] = CTL_USER;
mib[1] = USER_CS_PATH;
if (sysctl(mib, 2, NULL, &tlen, NULL, 0) == -1)
- return (-1);
+ return (CONFSTR_ERR_RET);
if (len != 0 && buf != NULL) {
if ((p = malloc(tlen)) == NULL)
- return (-1);
+ return (CONFSTR_ERR_RET);
if (sysctl(mib, 2, p, &tlen, NULL, 0) == -1) {
sverrno = errno;
free(p);
errno = sverrno;
- return (-1);
+ return (CONFSTR_ERR_RET);
}
/*
* POSIX 1003.2 requires partial return of
buf[len - 1] = '\0';
free(p);
}
- return (tlen + 1);
+ 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);
projects / apple / libc.git / blobdiff