appl/popper/pop_dele.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  *  dele:   Delete a message from the POP maildrop
  12  */
  13 int
  14 pop_dele (POP *p)
  15 {
  16     MsgInfoList     *   mp;         /*  Pointer to message info list */
  17     int                 msg_num;
  18
  19     /*  Convert the message number parameter to an integer */
  20     msg_num = atoi(p->pop_parm[1]);
  21
  22     /*  Is requested message out of range? */
  23     if ((msg_num < 1) || (msg_num > p->msg_count))
  24         return (pop_msg (p,POP_FAILURE,"Message %d does not exist.",msg_num));
  25
  26     /*  Get a pointer to the message in the message list */
  27     mp = &(p->mlp[msg_num-1]);
  28
  29     /*  Is the message already flagged for deletion? */
  30     if (mp->flags & DEL_FLAG)
  31         return (pop_msg (p,POP_FAILURE,"Message %d has already been deleted.",
  32             msg_num));
  33
  34     /*  Flag the message for deletion */
  35     mp->flags |= DEL_FLAG;
  36
  37 #ifdef DEBUG
  38     if(p->debug)
  39         pop_log(p, POP_DEBUG,
  40                 "Deleting message %u at offset %ld of length %ld\n",
  41                 mp->number, mp->offset, mp->length);
  42 #endif /* DEBUG */
  43
  44     /*  Update the messages_deleted and bytes_deleted counters */
  45     p->msgs_deleted++;
  46     p->bytes_deleted += mp->length;
  47
  48     /*  Update the last-message-accessed number if it is lower than
  49         the deleted message */
  50     if (p->last_msg < msg_num) p->last_msg = msg_num;
  51
  52     return (pop_msg (p,POP_SUCCESS,"Message %d has been deleted.",msg_num));
  53 }
  54
  55 #ifdef XDELE
  56 /* delete a range of messages */
  57 int
  58 pop_xdele(POP *p)
  59 {
  60     MsgInfoList     *   mp;         /*  Pointer to message info list */
  61
  62     int msg_min, msg_max;
  63     int i;
  64
  65
  66     msg_min = atoi(p->pop_parm[1]);
  67     if(p->parm_count == 1)
  68         msg_max = msg_min;
  69     else
  70         msg_max = atoi(p->pop_parm[2]);
  71
  72     if (msg_min < 1)
  73         return (pop_msg (p,POP_FAILURE,"Message %d does not exist.",msg_min));
  74     if(msg_max > p->msg_count)
  75         return (pop_msg (p,POP_FAILURE,"Message %d does not exist.",msg_max));
  76     for(i = msg_min; i <= msg_max; i++) {
  77
  78         /*  Get a pointer to the message in the message list */
  79         mp = &(p->mlp[i - 1]);
  80
  81         /*  Is the message already flagged for deletion? */
  82         if (mp->flags & DEL_FLAG)
  83             continue; /* no point in returning error */
  84         /*  Flag the message for deletion */
  85         mp->flags |= DEL_FLAG;
  86
  87 #ifdef DEBUG
  88         if(p->debug)
  89             pop_log(p, POP_DEBUG,
  90                     "Deleting message %u at offset %ld of length %ld\n",
  91                     mp->number, mp->offset, mp->length);
  92 #endif /* DEBUG */
  93
  94         /*  Update the messages_deleted and bytes_deleted counters */
  95         p->msgs_deleted++;
  96         p->bytes_deleted += mp->length;
  97     }
  98
  99     /*  Update the last-message-accessed number if it is lower than
 100         the deleted message */
 101     if (p->last_msg < msg_max) p->last_msg = msg_max;
 102
 103     return (pop_msg (p,POP_SUCCESS,"Messages %d-%d has been deleted.",
 104                      msg_min, msg_max));
 105
 106 }
 107 #endif /* XDELE */