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 #pragma ident "%Z%%M% %I% %E% SMI"
26
27 #include "mail.h"
28 /*
29 * link new entry into list of headerlines encountered of this type.
30 * If contflg == TRUE, link this line to the end of the continuation lines
31 * for the headerline specified (head or tail of type hdrtype).
32 */
pushlist(hdrtype,where,s,contflg)33 void pushlist(hdrtype, where, s, contflg)
34 register int hdrtype;
35 register int where;
36 register char *s;
37 {
38 static char pn[] = "pushlist";
39 char *p;
40 struct hdrs *nhp, *ohp, *nextcont;
41
42 /* Keep track of total bytes added to message due to */
43 /* certain lines in case non-delivery */
44 /* notification needs to be sent. (See also copylet()) */
45 if (hdrtype == H_AFWDFROM) {
46 affbytecnt += (strlen(s) + ((contflg == TRUE) ?
47 1 :
48 (strlen(header[H_AFWDFROM].tag) + 2)) );
49 if (contflg == FALSE) {
50 affcnt++;
51 }
52 }
53 if (hdrtype == H_RECEIVED) {
54 rcvbytecnt += (strlen(s) + ((contflg == TRUE) ?
55 1 :
56 (strlen(header[H_RECEIVED].tag) + 2)) );
57 }
58 if ((p = malloc(sizeof(struct hdrs))) == (char *)NULL) {
59 errmsg(E_MEM,"malloc failed in pushlist()");
60 done(1);
61 }
62 memset(p, 0, sizeof(struct hdrs));
63
64 ohp = (where == HEAD ? hdrlines[hdrtype].head : hdrlines[hdrtype].tail);
65 nhp = (struct hdrs *)p;
66
67 (void) strlcpy(nhp->value, s, sizeof (nhp->value));
68
69 Dout(pn, 0, "hdrtype = %d/%s, contflg = %d, saved value = '%s'\n",
70 hdrtype, header[hdrtype].tag, contflg, s);
71
72 if (contflg) {
73 if (ohp == (struct hdrs *)NULL) {
74 /* This shouldn't happen.....? */
75 /* No headline of this type found so far. How */
76 /* did we think this is a continuation of something? */
77 if (debug > 0) {
78 Dout(pn, 0, "H_CONT with no hdr yet\n");
79 abort();
80 }
81 /* Throw it on the floor... (!) */
82 /**/
83 /* Subtract anything that might have been added above */
84 if (hdrtype == H_AFWDFROM) {
85 affbytecnt -= (strlen(s) + ((contflg == TRUE) ?
86 1 :
87 (strlen(header[H_AFWDFROM].tag) + 2)) );
88 }
89 if (hdrtype == H_RECEIVED) {
90 rcvbytecnt -= (strlen(s) + ((contflg == TRUE) ?
91 1 :
92 (strlen(header[H_RECEIVED].tag) + 2)) );
93 }
94 free ((char *)nhp);
95 return;
96 }
97 /* Since we ONLY walk down 'cont' chains, */
98 /* we only need forward links */
99 nextcont = ohp;
100 while (nextcont->cont != (struct hdrs *)NULL) {
101 nextcont = nextcont->cont;
102 }
103 /* Add this one to end of list... */
104 nextcont->cont = nhp;
105 return;
106 }
107
108 /* link value from this header line to end of list for */
109 /* all header lines of the same type */
110
111 if (ohp == (struct hdrs *)NULL) {
112 /* Empty list so far. New element goes first */
113 hdrlines[hdrtype].head = hdrlines[hdrtype].tail = nhp;
114 } else {
115 if (where == HEAD) {
116 /* Add new element to head of list */
117 nhp->next = ohp;
118 hdrlines[hdrtype].head = ohp->prev = nhp;
119 } else {
120 /* Add new element to tail of list */
121 nhp->prev = ohp;
122 hdrlines[hdrtype].tail = ohp->next = nhp;
123 }
124 }
125 }
126