diff options
Diffstat (limited to 'lib/libc/gen/aux.c')
| -rw-r--r-- | lib/libc/gen/aux.c | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/lib/libc/gen/aux.c b/lib/libc/gen/aux.c deleted file mode 100644 index b5c079b..0000000 --- a/lib/libc/gen/aux.c +++ /dev/null @@ -1,146 +0,0 @@ -/*- - * Copyright 2010 Konstantin Belousov <kib@FreeBSD.ORG>. - * 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. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "namespace.h" -#include <elf.h> -#include <errno.h> -#include <link.h> -#include <pthread.h> -#include <string.h> -#include "un-namespace.h" -#include "libc_private.h" - -Elf_Auxinfo *__elf_aux_vector; - -static pthread_once_t aux_once = PTHREAD_ONCE_INIT; - -static int pagesize, osreldate, canary_len, ncpus, pagesizes_len; -static char *canary, *pagesizes; - -static void -init_aux(void) -{ - Elf_Auxinfo *aux; - - for (aux = __elf_aux_vector; aux->a_type != AT_NULL; aux++) { - switch (aux->a_type) { - case AT_CANARY: - canary = (char *)(aux->a_un.a_ptr); - break; - - case AT_CANARYLEN: - canary_len = aux->a_un.a_val; - break; - - case AT_PAGESIZES: - pagesizes = (char *)(aux->a_un.a_ptr); - break; - - case AT_PAGESIZESLEN: - pagesizes_len = aux->a_un.a_val; - break; - - case AT_PAGESZ: - pagesize = aux->a_un.a_val; - break; - - case AT_OSRELDATE: - osreldate = aux->a_un.a_val; - break; - - case AT_NCPUS: - ncpus = aux->a_un.a_val; - break; - } - } -} - -int -_elf_aux_info(int aux, void *buf, int buflen) -{ - int res; - - if (__elf_aux_vector == NULL) - return (ENOSYS); - _once(&aux_once, init_aux); - - switch (aux) { - case AT_CANARY: - if (canary != NULL && canary_len >= buflen) { - memcpy(buf, canary, buflen); - memset(canary, 0, canary_len); - canary = NULL; - res = 0; - } else - res = ENOENT; - break; - case AT_PAGESIZES: - if (pagesizes != NULL && pagesizes_len >= buflen) { - memcpy(buf, pagesizes, buflen); - res = 0; - } else - res = ENOENT; - break; - - case AT_PAGESZ: - if (buflen == sizeof(int)) { - if (pagesize != 0) { - *(int *)buf = pagesize; - res = 0; - } else - res = ENOENT; - } else - res = EINVAL; - break; - case AT_OSRELDATE: - if (buflen == sizeof(int)) { - if (osreldate != 0) { - *(int *)buf = osreldate; - res = 0; - } else - res = ENOENT; - } else - res = EINVAL; - break; - case AT_NCPUS: - if (buflen == sizeof(int)) { - if (ncpus != 0) { - *(int *)buf = ncpus; - res = 0; - } else - res = ENOENT; - } else - res = EINVAL; - break; - default: - res = ENOENT; - break; - } - return (res); -} |
