crypto/dist/heimdal/appl/popper/pop_msg.c

   1 /*
   2  * Copyright (c) 1989 Regents of the University of California.
   3  * All rights reserved.  The Berkeley software License Agreement
   4  * specifies the terms and conditions for redistribution.
   5  */
   6
   7 #include <popper.h>
   8 __RCSID("$Heimdal: pop_msg.c 6984 1999-09-16 20:41:57Z assar $"
   9         "$NetBSD$");
  10
  11 /*
  12  *  msg:    Send a formatted line to the POP client
  13  */
  14
  15 int
  16 pop_msg(POP *p, int stat, char *format, ...)
  17 {
  18     char               *mp;
  19     char                message[MAXLINELEN];
  20     va_list             ap;
  21
  22     va_start(ap, format);
  23
  24     /*  Point to the message buffer */
  25     mp = message;
  26
  27     /*  Format the POP status code at the beginning of the message */
  28     snprintf (mp, sizeof(message), "%s ",
  29               (stat == POP_SUCCESS) ? POP_OK : POP_ERR);
  30
  31     /*  Point past the POP status indicator in the message message */
  32     mp += strlen(mp);
  33
  34     /*  Append the message (formatted, if necessary) */
  35     if (format)
  36         vsnprintf (mp, sizeof(message) - strlen(message),
  37                    format, ap);
  38
  39     /*  Log the message if debugging is turned on */
  40 #ifdef DEBUG
  41     if (p->debug && stat == POP_SUCCESS)
  42         pop_log(p,POP_DEBUG,"%s",message);
  43 #endif /* DEBUG */
  44
  45     /*  Log the message if a failure occurred */
  46     if (stat != POP_SUCCESS)
  47         pop_log(p,POP_PRIORITY,"%s",message);
  48
  49     /*  Append the <CR><LF> */
  50     strlcat(message, "\r\n", sizeof(message));
  51
  52     /*  Send the message to the client */
  53     fputs(message, p->output);
  54     fflush(p->output);
  55
  56     va_end(ap);
  57     return(stat);
  58 }