libc-top-half/musl/src/env/getenv.c

   1 #include <stdlib.h>
   2 #include <string.h>
   3 #include <unistd.h>
   4
   5 char *getenv(const char *name)
   6 {
   7         size_t l = __strchrnul(name, '=') - name;
   8         if (l && !name[l] && __environ)
   9                 for (char **e = __environ; *e; e++)
  10                         if (!strncmp(name, *e, l) && l[*e] == '=')
  11                                 return *e + l+1;
  12         return 0;
  13 }