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