memcheck/tests/darwin/env.c

   1 #include <assert.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4
   5 // This tests that the suppression for the leak in setenv() works.  See bug
   6 // 188572.
   7
   8 int main(void)
   9 {
  10    char* val1 = "x";
  11    char* val2 = "xx";
  12    char* val3 = "xxx";
  13
  14    setenv("MYVAR", val1, /*overwrite*/0); // makes a copy which is later leaked
  15    assert( 0 == strcmp(getenv("MYVAR"), val1) );
  16
  17    setenv("MYVAR", val2, /*overwrite*/1); // makes a copy which is later leaked
  18    assert( 0 == strcmp(getenv("MYVAR"), val2) );
  19
  20    setenv("MYVAR", val3, /*overwrite*/0); // doesn't overwrite MYVAR=val2
  21    assert( 0 == strcmp(getenv("MYVAR"), val2) );
  22
  23    putenv("MYVAR=xxxx");                  // no leak for putenv()
  24    assert( 0 == strcmp(getenv("MYVAR"), "xxxx") );
  25
  26    unsetenv("MYVAR");
  27    assert( NULL == getenv("MYVAR") );
  28
  29    return 0;
  30 }
  31