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 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