rework namei interface to eliminate global variables;

[unix-history] / usr / src / libexec / fingerd / fingerd.c

#ifndef lint
static char sccsid[] = "@(#)fingerd.c   1.2 (Berkeley) %G%";
#endif

/*
* Finger server.
*/
#include <sys/types.h>
#include <netinet/in.h>

#include <stdio.h>
#include <ctype.h>

FILE    *popen();

main(argc, argv)
       char *argv[];
{
       register char *cp, *sp;
       char cmdbuf[512], line[512];
       struct sockaddr_in sin;
       int i;
       FILE *fp;

       i = sizeof (sin);
       if (getpeername(0, &sin, &i) < 0)
               fatal(argv[0], "getpeername");
       line[0] = '\0';
       gets(line);
       sp = line;
       strcpy(cmdbuf, "/usr/ucb/finger");
       cp = cmdbuf + strlen(cmdbuf);
       while (1) {
               while (isspace(*sp))
                       sp++;
               if (!*sp)
                       break;
               *cp++ = ' ';
               if (*sp == '/' && (sp[1] == 'W' || sp[1] == 'w')) {
                       sp += 2;
                       *cp++ = '-';
                       *cp++ = 'l';
               }
               while (!isspace(*sp))
                       *cp++ = *sp++;
       }
       *cp++ = '\0';
       if ((fp = popen(cmdbuf, "r")) == NULL)
               fatal(argv[0], "/usr/ucb/finger");
       while ((i = getc(fp)) != EOF) {
               if (i == '\n')
                       putchar('\r');
               putchar(i);
       }
       pclose(fp);
       return(0);
}

fatal(prog, s)
       char *prog, *s;
{

       fprintf(stderr, "%s: ", prog);
       perror(s);
       exit(1);
}