mdw@git.distorted.org.uk Git - qmail/blob - auto-uid.c

   1 #include <sys/types.h>
   2 #include <pwd.h>
   3 #include "subfd.h"
   4 #include "substdio.h"
   5 #include "readwrite.h"
   6 #include "exit.h"
   7 #include "scan.h"
   8 #include "fmt.h"
   9
  10 char buf1[256];
  11 substdio ss1 = SUBSTDIO_FDBUF(write,1,buf1,sizeof(buf1));
  12
  13 void outs(s) /* was named puts, but Solaris pwd.h includes stdio.h. dorks. */
  14 char *s;
  15 {
  16   if (substdio_puts(&ss1,s) == -1) _exit(111);
  17 }
  18
  19 void main(argc,argv)
  20 int argc;
  21 char **argv;
  22 {
  23   char *name;
  24   char *value;
  25   struct passwd *pw;
  26   char strnum[FMT_ULONG];
  27
  28   name = argv[1];
  29   if (!name) _exit(100);
  30   value = argv[2];
  31   if (!value) _exit(100);
  32
  33   pw = getpwnam(value);
  34   if (!pw) {
  35     substdio_puts(subfderr,"fatal: unable to find user ");
  36     substdio_puts(subfderr,value);
  37     substdio_puts(subfderr,"\n");
  38     substdio_flush(subfderr);
  39     _exit(111);
  40   }
  41
  42   strnum[fmt_ulong(strnum,(unsigned long) pw->pw_uid)] = 0;
  43
  44   outs("int ");
  45   outs(name);
  46   outs(" = ");
  47   outs(strnum);
  48   outs(";\n");
  49   if (substdio_flush(&ss1) == -1) _exit(111);
  50   _exit(0);
  51 }