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("$Id$");
   9
  10 /*
  11  *  msg:    Send a formatted line to the POP client
  12  */
  13
  14 int
  15 pop_msg(POP *p, int stat, const char *format, ...)
  16 {
  17     char               *mp;
  18     char                message[MAXLINELEN];
  19     va_list             ap;
  20
  21     va_start(ap, format);
  22
  23     /*  Point to the message buffer */
  24     mp = message;
  25
  26     /*  Format the POP status code at the beginning of the message */
  27     snprintf (mp, sizeof(message), "%s ",
  28               (stat == POP_SUCCESS) ? POP_OK : POP_ERR);
  29
  30     /*  Point past the POP status indicator in the message message */
  31     mp += strlen(mp);
  32
  33     /*  Append the message (formatted, if necessary) */
  34     if (format)
  35         vsnprintf (mp, sizeof(message) - strlen(message),
  36                    format, ap);
  37
  38     /*  Log the message if debugging is turned on */
  39 #ifdef DEBUG
  40     if (p->debug && stat == POP_SUCCESS)
  41         pop_log(p,POP_DEBUG,"%s",message);
  42 #endif /* DEBUG */
  43
  44     /*  Log the message if a failure occurred */
  45     if (stat != POP_SUCCESS)
  46         pop_log(p,POP_PRIORITY,"%s",message);
  47
  48     /*  Append the <CR><LF> */
  49     strlcat(message, "\r\n", sizeof(message));
  50
  51     /*  Send the message to the client */
  52     fputs(message, p->output);
  53     fflush(p->output);
  54
  55     va_end(ap);
  56     return(stat);
  57 }