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