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Add sysctlbyname() for MacOS

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This commit is contained in:
Justine Tunney 2024-05-02 23:21:43 -07:00
parent 5c6877b02b
commit 181cd4cbe8
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GPG key ID: BE714B4575D6E328
21 changed files with 193 additions and 35 deletions
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4
libc/calls/calls.h
View file

@ -237,7 +237,9 @@ int sys_munlock(const void *, size_t) libcesque;
int sys_munlockall(void) libcesque;
int sys_personality(uint64_t) libcesque;
int sys_ptrace(int, ...) libcesque;
int sys_sysctl(const int *, unsigned, void *, size_t *, void *, size_t);
int sysctl(int *, unsigned, void *, size_t *, void *, size_t) libcesque;
int sysctlbyname(const char *, void *, size_t *, void *, size_t) libcesque;
int sysctlnametomib(const char *, int *, size_t *) libcesque;
int tmpfd(void) libcesque;
int touch(const char *, unsigned) libcesque;
int unveil(const char *, const char *) libcesque;

2
libc/calls/clktck.c
View file

@ -53,7 +53,7 @@ static dontinline int __clk_tck_init(void) {
cmd[0] = 1; // CTL_KERN
cmd[1] = 12; // KERN_CLOCKRATE
len = sizeof(clock);
if (sys_sysctl(cmd, 2, &clock, &len, NULL, 0) != -1) {
if (sysctl(cmd, 2, &clock, &len, NULL, 0) != -1) {
x = clock.hz;
} else {
x = -1;

2
libc/calls/clock_gettime-xnu.c
View file

@ -67,7 +67,7 @@ int sys_clock_gettime_xnu(int clock, struct timespec *ts) {
struct timeval x;
size_t n = sizeof(x);
int mib[] = {CTL_KERN, KERN_BOOTTIME};
if (sys_sysctl(mib, ARRAYLEN(mib), &x, &n, 0, 0) == -1)
if (sysctl(mib, ARRAYLEN(mib), &x, &n, 0, 0) == -1)
return -1;
if (ts)
*ts = timeval_totimespec(timeval_sub(timeval_real(), x));

2
libc/calls/getcpucount.c
View file

@ -51,7 +51,7 @@ static int __get_cpu_count_bsd(void) {
} else {
cmd[1] = HW_NCPU;
}
if (!sys_sysctl(cmd, 2, &c, &n, 0, 0)) {
if (!sysctl(cmd, 2, &c, &n, 0, 0)) {
return c;
} else {
return -1;

2
libc/calls/gethostname-bsd.c
View file

@ -24,7 +24,7 @@
int gethostname_bsd(char *name, size_t len, int kind) {
int cmd[2] = {CTL_KERN, kind};
if (sys_sysctl(cmd, 2, name, &len, 0, 0) != -1) {
if (sysctl(cmd, 2, name, &len, 0, 0) != -1) {
return 0;
} else {
if (errno == ENOMEM) {

2
libc/calls/getloadavg.c
View file

@ -64,7 +64,7 @@ int getloadavg(double *a, int n) {
struct loadavg loadinfo;
int mib[2] = {CTL_VM, VM_LOADAVG};
size = sizeof(loadinfo);
if ((rc = sys_sysctl(mib, 2, &loadinfo, &size, 0, 0)) != -1) {
if ((rc = sysctl(mib, 2, &loadinfo, &size, 0, 0)) != -1) {
for (i = 0; i < n; i++) {
a[i] = (double)loadinfo.ldavg[i] / loadinfo.fscale;
}

2
libc/calls/getprogramexecutablename.greg.c
View file

@ -195,7 +195,7 @@ static inline void InitProgramExecutableNameImpl(void) {
cmd[2] = KERN_PROC_PATHNAME_NETBSD;
}
cmd[3] = -1; // current process
if (sys_sysctl(cmd, ARRAYLEN(cmd), b, &n, 0, 0) != -1) {
if (sysctl(cmd, ARRAYLEN(cmd), b, &n, 0, 0) != -1) {
if (!OldApeLoader(b)) {
goto UseBuf;
}

2
libc/calls/getrandom.c
View file

@ -70,7 +70,7 @@ static void GetRandomArnd(char *p, size_t n) {
cmd[0] = 1; // CTL_KERN
cmd[1] = IsFreebsd() ? 37 : 81; // KERN_ARND
unassert((m = n) <= 256);
if (sys_sysctl(cmd, 2, p, &n, 0, 0) == -1)
if (sysctl(cmd, 2, p, &n, 0, 0) == -1)
notpossible;
if (m != n)
notpossible;

33
libc/calls/sysctl.c Normal file
View file

@ -0,0 +1,33 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2024 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/runtime/syslib.internal.h"
int sys_sysctl(int *, unsigned, void *, size_t *, void *, size_t) libcesque;
int sysctl(int *name, unsigned namelen, void *oldp, size_t *oldlenp, void *newp,
size_t newlen) {
if (__syslib && __syslib->__version >= 10) {
return _sysret(
__syslib->__sysctl(name, namelen, oldp, oldlenp, newp, newlen));
} else {
return sys_sysctl(name, namelen, oldp, oldlenp, newp, newlen);
}
}

31
libc/calls/sysctlbyname.c Normal file
View file

@ -0,0 +1,31 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2024 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/runtime/syslib.internal.h"
#include "libc/sysv/errfuns.h"
int sysctlbyname(const char *name, void *oldp, size_t *oldlenp, void *newp,
size_t newlen) {
if (__syslib && __syslib->__version >= 10) {
return _sysret(__syslib->__sysctlbyname(name, oldp, oldlenp, newp, newlen));
} else {
return enosys();
}
}

30
libc/calls/sysctlnametomib.c Normal file
View file

@ -0,0 +1,30 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2024 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/runtime/syslib.internal.h"
#include "libc/sysv/errfuns.h"
int sysctlnametomib(const char *name, int *mibp, size_t *sizep) {
if (__syslib && __syslib->__version >= 10) {
return _sysret(__syslib->__sysctlnametomib(name, mibp, sizep));
} else {
return enosys();
}
}

6
libc/calls/sysinfo.c
View file

@ -46,7 +46,7 @@ static int64_t GetUptime(void) {
struct timeval x;
size_t n = sizeof(x);
int mib[] = {CTL_KERN, KERN_BOOTTIME};
if (sys_sysctl(mib, ARRAYLEN(mib), &x, &n, 0, 0) == -1)
if (sysctl(mib, ARRAYLEN(mib), &x, &n, 0, 0) == -1)
return 0;
return timespec_real().tv_sec - x.tv_sec;
}
@ -55,7 +55,7 @@ static int64_t GetPhysmem(void) {
uint64_t x = 0;
size_t n = sizeof(x);
int mib[] = {CTL_HW, HW_PHYSMEM};
if (sys_sysctl(mib, ARRAYLEN(mib), &x, &n, 0, 0) == -1)
if (sysctl(mib, ARRAYLEN(mib), &x, &n, 0, 0) == -1)
return 0;
return x;
}
@ -65,7 +65,7 @@ static void GetLoads(uint64_t loads[3]) {
struct loadavg loadinfo;
int mib[2] = {CTL_VM, VM_LOADAVG};
size = sizeof(loadinfo);
if (sys_sysctl(mib, 2, &loadinfo, &size, 0, 0) != -1) {
if (sysctl(mib, 2, &loadinfo, &size, 0, 0) != -1) {
for (int i = 0; i < 3; i++) {
loads[i] = (double)loadinfo.ldavg[i] / loadinfo.fscale * 65536;
}

2
libc/calls/uname.c
View file

@ -62,7 +62,7 @@ static void GetBsdStr(int c0, int c1, char *s) {
size_t n = SYS_NMLN;
int cmd[2] = {c0, c1};
bzero(s, n), --n;
sys_sysctl(cmd, 2, s, &n, NULL, 0);
sysctl(cmd, 2, s, &n, NULL, 0);
errno = e;
// sysctl kern.version is too verbose for uname
if ((p = strchr(s, '\n'))) {