xref: /onnv-gate/usr/src/cmd/mail/poplist.c (revision 0:68f95e015346)
1  /*
2   * CDDL HEADER START
3   *
4   * The contents of this file are subject to the terms of the
5   * Common Development and Distribution License, Version 1.0 only
6   * (the "License").  You may not use this file except in compliance
7   * with the License.
8   *
9   * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10   * or http://www.opensolaris.org/os/licensing.
11   * See the License for the specific language governing permissions
12   * and limitations under the License.
13   *
14   * When distributing Covered Code, include this CDDL HEADER in each
15   * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16   * If applicable, add the following below this CDDL HEADER, with the
17   * fields enclosed by brackets "[]" replaced with your own identifying
18   * information: Portions Copyright [yyyy] [name of copyright owner]
19   *
20   * CDDL HEADER END
21   */
22  /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
23  /*	  All Rights Reserved  	*/
24  
25  
26  #pragma ident	"%Z%%M%	%I%	%E% SMI" 	/* SVr4.0 2.	*/
27  #include "mail.h"
28  /*
29   * Remove an entry from its linked list and free any malloc'd memory..
30   */
poplist(hdrtype,where)31  void poplist (hdrtype, where)
32  register int	hdrtype;
33  register int	where;
34  {
35  	struct	hdrs	*hdr2rm, *cont2rm, *nextcont;
36  
37  	/* Remove first/last entry from list */
38  
39  	hdr2rm = (where == HEAD ?
40  			hdrlines[hdrtype].head : hdrlines[hdrtype].tail);
41  
42  	if (hdr2rm == (struct hdrs *)NULL) {
43  		return;
44  	}
45  	if (where == HEAD) {
46  		if (hdr2rm->next == (struct hdrs *)NULL) {
47  			/* Only 1 entry in list */
48  			hdrlines[hdrtype].head = hdrlines[hdrtype].tail =
49  							(struct hdrs *)NULL;
50  		} else {
51  			hdrlines[hdrtype].head = hdr2rm->next;
52  			hdr2rm->next->prev = (struct hdrs *)NULL;
53  		}
54  	} else {
55  		if (hdr2rm->prev == (struct hdrs *)NULL) {
56  			/* Only 1 entry in list */
57  			hdrlines[hdrtype].head = hdrlines[hdrtype].tail =
58  							(struct hdrs *)NULL;
59  		} else {
60  			hdrlines[hdrtype].tail = hdr2rm->prev;
61  			hdr2rm->prev->next = (struct hdrs *)NULL;
62  		}
63  	}
64  	/* Keep track of total bytes added to message due to    */
65  	/* selected lines in case non-delivery                  */
66  	/* notification needs to be sent. (See also copylet())  */
67  	if (hdrtype == H_AFWDFROM) {
68  	    affbytecnt -=
69  		(strlen(header[H_AFWDFROM].tag) + strlen(hdr2rm->value) + 2);
70  	    affcnt--;
71  	}
72  	if (hdrtype == H_RECEIVED) {
73  	    rcvbytecnt -=
74  		(strlen(header[H_RECEIVED].tag) + strlen(hdr2rm->value) + 2);
75  	}
76  
77  	cont2rm = hdr2rm->cont;
78  	while (cont2rm != (struct hdrs *)NULL) {
79  		nextcont = cont2rm->next;
80  		if (hdrtype == H_AFWDFROM) {
81  		    affbytecnt -= (strlen(cont2rm->value) + 1);
82  		    affcnt--;
83  		}
84  		if (hdrtype == H_RECEIVED) {
85  		    rcvbytecnt -= (strlen(cont2rm->value) + 1);
86  		}
87  		free ((char *)cont2rm);
88  		cont2rm = nextcont;
89  	}
90  	free ((char *)hdr2rm);
91  }
92