compiler-rt/test/sanitizer_common/TestCases/Posix/sysctl.cpp

   1 // RUN: %clangxx -O0 -g %s -o %t && %run %t 2>&1 | FileCheck %s
   2 //
   3 // UNSUPPORTED: linux, target={{.*solaris.*}}
   4
   5 #include <sys/param.h>
   6 #include <sys/types.h>
   7
   8 #include <sys/sysctl.h>
   9
  10 #include <assert.h>
  11 #include <stdio.h>
  12 #include <stdlib.h>
  13
  14 #ifndef __arraycount
  15 #define __arraycount(a) (sizeof(a) / sizeof(a[0]))
  16 #endif
  17
  18 void test_sysctl() {
  19   char buf[100];
  20   size_t len = sizeof(buf);
  21   int mib[] = {CTL_KERN, KERN_OSTYPE};
  22   int rv = sysctl(mib, __arraycount(mib), buf, &len, NULL, 0);
  23   assert(!rv);
  24
  25   printf("sysctl: '%s' size: '%zu'\n", buf, len);
  26 }
  27
  28 void test_sysctlbyname() {
  29   char buf[100];
  30   size_t len = sizeof(buf);
  31   int rv = sysctlbyname("kern.ostype", buf, &len, NULL, 0);
  32   assert(!rv);
  33
  34   printf("sysctlbyname: '%s' size: '%zu'\n", buf, len);
  35 }
  36
  37 void test_sysctlnametomib() {
  38   int mib[CTL_MAXNAME];
  39   size_t mib_len = __arraycount(mib);
  40   int rv = sysctlnametomib("kern.ostype", &mib[0], &mib_len);
  41   assert(!rv);
  42
  43   char buf[100];
  44   size_t len = sizeof(buf);
  45   rv = sysctl(mib, mib_len, buf, &len, NULL, 0);
  46   assert(!rv);
  47
  48   printf("sysctlnametomib: '%s' size: '%zu'\n", buf, len);
  49 }
  50
  51 int main(void) {
  52   printf("sysctl\n");
  53
  54   test_sysctl();
  55   test_sysctlbyname();
  56   test_sysctlnametomib();
  57
  58   // CHECK: sysctl
  59   // CHECK: sysctl: '{{.*}}' size: '{{.*}}'
  60   // CHECK: sysctlbyname: '{{.*}}' size: '{{.*}}'
  61   // CHECK: sysctlnametomib: '{{.*}}' size: '{{.*}}'
  62
  63   return 0;
  64 }