2.9BSD - /usr/src/cmd/uucp/getpw.c

   1: #ifndef lint
   2: static char sccsid[] = "@(#)getpw.c	5.2 (Berkeley) 7/2/83";
   3: #endif
   4: 
   5: #include <stdio.h>
   6: 
   7: getpw(uid, buf)
   8: int uid;
   9: char buf[];
  10: {
  11:     static FILE *pwf;
  12:     register n, c;
  13:     register char *bp;
  14: 
  15:     if(pwf == 0)
  16:         pwf = fopen("/etc/passwd", "r");
  17:     if(pwf == NULL)
  18:         return(1);
  19:     rewind(pwf);
  20:     uid &= 0377;
  21: 
  22:     for (;;) {
  23:         bp = buf;
  24:         while((c=getc(pwf)) != '\n') {
  25:             if(c <= 0)
  26:                 return(1);
  27:             *bp++ = c;
  28:         }
  29:         *bp++ = '\0';
  30:         bp = buf;
  31:         n = 3;
  32:         while(--n)
  33:         while((c = *bp++) != ':')
  34:             if(c == '\n')
  35:                 return(1);
  36:         while((c = *bp++) != ':') {
  37:             if(c<'0' || c>'9')
  38:                 continue;
  39:             n = n*10+c-'0';
  40:         }
  41:         if(n == uid)
  42:             return(0);
  43:     }
  44: }

Defined functions

Defined variables