1 //===-- sanitizer_openbsd.cc ----------------------------------------------===//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
9 // This file is shared between various sanitizers' runtime libraries and
10 // implements Solaris-specific functions.
11 //===----------------------------------------------------------------------===//
13 #include "sanitizer_platform.h"
18 #include "sanitizer_common.h"
19 #include "sanitizer_flags.h"
20 #include "sanitizer_internal_defs.h"
21 #include "sanitizer_libc.h"
22 #include "sanitizer_placement_new.h"
23 #include "sanitizer_platform_limits_posix.h"
24 #include "sanitizer_procmaps.h"
36 #include <sys/sysctl.h>
37 #include <sys/types.h>
40 extern char **environ;
42 namespace __sanitizer {
44 uptr internal_mmap(void *addr, size_t length, int prot, int flags, int fd,
46 return (uptr)mmap(addr, length, prot, flags, fd, offset);
49 uptr internal_munmap(void *addr, uptr length) { return munmap(addr, length); }
51 int internal_mprotect(void *addr, uptr length, int prot) {
52 return mprotect(addr, length, prot);
55 int internal_sysctlbyname(const char *sname, void *oldp, uptr *oldlenp,
56 const void *newp, uptr newlen) {
57 Printf("internal_sysctlbyname not implemented for OpenBSD");
62 uptr ReadBinaryName(/*out*/char *buf, uptr buf_len) {
63 // On OpenBSD we cannot get the full path
66 const int Mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PID, getpid()};
67 if (internal_sysctl(Mib, ARRAY_SIZE(Mib), &kp, &kl, NULL, 0) != -1)
68 return internal_snprintf(buf,
69 (KI_MAXCOMLEN < buf_len ? KI_MAXCOMLEN : buf_len),
74 static void GetArgsAndEnv(char ***argv, char ***envp) {
77 int argvmib[4] = {CTL_KERN, KERN_PROC_ARGS, getpid(), KERN_PROC_ARGV};
78 int envmib[4] = {CTL_KERN, KERN_PROC_ARGS, getpid(), KERN_PROC_ENV};
79 if (internal_sysctl(argvmib, 4, NULL, &nargv, NULL, 0) == -1) {
80 Printf("sysctl KERN_PROC_NARGV failed\n");
83 if (internal_sysctl(envmib, 4, NULL, &nenv, NULL, 0) == -1) {
84 Printf("sysctl KERN_PROC_NENV failed\n");
87 if (internal_sysctl(argvmib, 4, &argv, &nargv, NULL, 0) == -1) {
88 Printf("sysctl KERN_PROC_ARGV failed\n");
91 if (internal_sysctl(envmib, 4, &envp, &nenv, NULL, 0) == -1) {
92 Printf("sysctl KERN_PROC_ENV failed\n");
99 GetArgsAndEnv(&argv, &envp);
103 char **GetEnviron() {
105 GetArgsAndEnv(&argv, &envp);
113 } // namespace __sanitizer
115 #endif // SANITIZER_OPENBSD