sys/src/cmd/9nfs/system.c

   1 #include <u.h>
   2 #include <libc.h>
   3
   4 Waitmsg*
   5 system(char *name, char **argv)
   6 {
   7         char err[ERRMAX];
   8         Waitmsg *w;
   9         int pid;
  10
  11         switch(pid = fork()){   /* assign = */
  12         case -1:
  13                 return nil;
  14         case 0:
  15                 exec(name, argv);
  16                 errstr(err, sizeof err);
  17                 _exits(err);
  18         }
  19         for(;;){
  20                 w = wait();
  21                 if(w == nil)
  22                         break;
  23                 if(w->pid == pid)
  24                         return w;
  25                 free(w);
  26         }
  27         return nil;
  28 }
  29
  30 Waitmsg*
  31 systeml(char *name, ...)
  32 {
  33         return system(name, &name+1);
  34 }