17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 77c478bd9Sstevel@tonic-gate * with the License. 87c478bd9Sstevel@tonic-gate * 97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 127c478bd9Sstevel@tonic-gate * and limitations under the License. 137c478bd9Sstevel@tonic-gate * 147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 197c478bd9Sstevel@tonic-gate * 207c478bd9Sstevel@tonic-gate * CDDL HEADER END 217c478bd9Sstevel@tonic-gate */ 227c478bd9Sstevel@tonic-gate /* 237c478bd9Sstevel@tonic-gate * Copyright 1995 Sun Microsystems, Inc. All rights reserved. 247c478bd9Sstevel@tonic-gate * Use is subject to license terms. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 277c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 287c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 297c478bd9Sstevel@tonic-gate 307c478bd9Sstevel@tonic-gate 317c478bd9Sstevel@tonic-gate /* 327c478bd9Sstevel@tonic-gate * University Copyright- Copyright (c) 1982, 1986, 1988 337c478bd9Sstevel@tonic-gate * The Regents of the University of California 347c478bd9Sstevel@tonic-gate * All Rights Reserved 357c478bd9Sstevel@tonic-gate * 367c478bd9Sstevel@tonic-gate * University Acknowledgment- Portions of this document are derived from 377c478bd9Sstevel@tonic-gate * software developed by the University of California, Berkeley, and its 387c478bd9Sstevel@tonic-gate * contributors. 397c478bd9Sstevel@tonic-gate */ 407c478bd9Sstevel@tonic-gate 417c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 427c478bd9Sstevel@tonic-gate 437c478bd9Sstevel@tonic-gate #include "rcv.h" 447c478bd9Sstevel@tonic-gate 457c478bd9Sstevel@tonic-gate /* 467c478bd9Sstevel@tonic-gate * mailx -- a modified version of a University of California at Berkeley 477c478bd9Sstevel@tonic-gate * mail program 487c478bd9Sstevel@tonic-gate * 497c478bd9Sstevel@tonic-gate * Routines for processing and detecting headlines. 507c478bd9Sstevel@tonic-gate */ 517c478bd9Sstevel@tonic-gate 527c478bd9Sstevel@tonic-gate static char *copyin(char src[], char **space); 537c478bd9Sstevel@tonic-gate static char *nextword(char wp[], char wbuf[]); 547c478bd9Sstevel@tonic-gate 557c478bd9Sstevel@tonic-gate /* 567c478bd9Sstevel@tonic-gate * See if the passed line buffer is a mail header. 577c478bd9Sstevel@tonic-gate * Return true if yes. 587c478bd9Sstevel@tonic-gate */ 597c478bd9Sstevel@tonic-gate 607c478bd9Sstevel@tonic-gate int 617c478bd9Sstevel@tonic-gate ishead(char linebuf[]) 627c478bd9Sstevel@tonic-gate { 637c478bd9Sstevel@tonic-gate register char *cp; 647c478bd9Sstevel@tonic-gate struct headline hl; 657c478bd9Sstevel@tonic-gate char parbuf[BUFSIZ]; 667c478bd9Sstevel@tonic-gate 677c478bd9Sstevel@tonic-gate cp = linebuf; 687c478bd9Sstevel@tonic-gate if (strncmp("From ", cp, 5) != 0) 697c478bd9Sstevel@tonic-gate return(0); 707c478bd9Sstevel@tonic-gate parse(cp, &hl, parbuf); 717c478bd9Sstevel@tonic-gate if (hl.l_from == NOSTR) { 727c478bd9Sstevel@tonic-gate return(0); 737c478bd9Sstevel@tonic-gate } 747c478bd9Sstevel@tonic-gate return(1); 757c478bd9Sstevel@tonic-gate } 767c478bd9Sstevel@tonic-gate 777c478bd9Sstevel@tonic-gate /* 787c478bd9Sstevel@tonic-gate * Split a headline into its useful components. 797c478bd9Sstevel@tonic-gate * Copy the line into dynamic string space, then set 807c478bd9Sstevel@tonic-gate * pointers into the copied line in the passed headline 817c478bd9Sstevel@tonic-gate * structure. Actually, it scans. 827c478bd9Sstevel@tonic-gate */ 837c478bd9Sstevel@tonic-gate void 847c478bd9Sstevel@tonic-gate parse(char line[], struct headline *hl, char pbuf[]) 857c478bd9Sstevel@tonic-gate { 867c478bd9Sstevel@tonic-gate register char *cp, *dp; 877c478bd9Sstevel@tonic-gate char *sp; 887c478bd9Sstevel@tonic-gate char word[LINESIZE]; 897c478bd9Sstevel@tonic-gate 907c478bd9Sstevel@tonic-gate hl->l_from = NOSTR; 917c478bd9Sstevel@tonic-gate hl->l_date = NOSTR; 927c478bd9Sstevel@tonic-gate cp = line; 937c478bd9Sstevel@tonic-gate sp = pbuf; 947c478bd9Sstevel@tonic-gate 957c478bd9Sstevel@tonic-gate /* 967c478bd9Sstevel@tonic-gate * Skip the first "word" of the line, which should be "From" 977c478bd9Sstevel@tonic-gate * anyway. 987c478bd9Sstevel@tonic-gate */ 997c478bd9Sstevel@tonic-gate 1007c478bd9Sstevel@tonic-gate cp = nextword(cp, word); 1017c478bd9Sstevel@tonic-gate dp = nextword(cp, word); 1027c478bd9Sstevel@tonic-gate if (!equal(word, "")) 1037c478bd9Sstevel@tonic-gate hl->l_from = copyin(word, &sp); 1047c478bd9Sstevel@tonic-gate if (dp != NOSTR) 1057c478bd9Sstevel@tonic-gate hl->l_date = copyin(dp, &sp); 1067c478bd9Sstevel@tonic-gate } 1077c478bd9Sstevel@tonic-gate 1087c478bd9Sstevel@tonic-gate /* 1097c478bd9Sstevel@tonic-gate * Copy the string on the left into the string on the right 1107c478bd9Sstevel@tonic-gate * and bump the right (reference) string pointer by the length. 1117c478bd9Sstevel@tonic-gate * Thus, dynamically allocate space in the right string, copying 1127c478bd9Sstevel@tonic-gate * the left string into it. 1137c478bd9Sstevel@tonic-gate */ 1147c478bd9Sstevel@tonic-gate 1157c478bd9Sstevel@tonic-gate static char * 1167c478bd9Sstevel@tonic-gate copyin(char src[], char **space) 1177c478bd9Sstevel@tonic-gate { 1187c478bd9Sstevel@tonic-gate register char *cp, *top; 1197c478bd9Sstevel@tonic-gate register int s; 1207c478bd9Sstevel@tonic-gate 1217c478bd9Sstevel@tonic-gate s = strlen(src); 1227c478bd9Sstevel@tonic-gate cp = *space; 1237c478bd9Sstevel@tonic-gate top = cp; 1247c478bd9Sstevel@tonic-gate strcpy(cp, src); 1257c478bd9Sstevel@tonic-gate cp += s + 1; 1267c478bd9Sstevel@tonic-gate *space = cp; 1277c478bd9Sstevel@tonic-gate return(top); 1287c478bd9Sstevel@tonic-gate } 1297c478bd9Sstevel@tonic-gate 1307c478bd9Sstevel@tonic-gate /* 1317c478bd9Sstevel@tonic-gate * Collect a liberal (space, tab delimited) word into the word buffer 1327c478bd9Sstevel@tonic-gate * passed. Also, return a pointer to the next word following that, 1337c478bd9Sstevel@tonic-gate * or NOSTR if none follow. 1347c478bd9Sstevel@tonic-gate */ 1357c478bd9Sstevel@tonic-gate 1367c478bd9Sstevel@tonic-gate static char * 1377c478bd9Sstevel@tonic-gate nextword(char wp[], char wbuf[]) 1387c478bd9Sstevel@tonic-gate { 1397c478bd9Sstevel@tonic-gate register char *cp, *cp2; 1407c478bd9Sstevel@tonic-gate 1417c478bd9Sstevel@tonic-gate if ((cp = wp) == NOSTR) { 1427c478bd9Sstevel@tonic-gate copy("", wbuf); 1437c478bd9Sstevel@tonic-gate return(NOSTR); 1447c478bd9Sstevel@tonic-gate } 1457c478bd9Sstevel@tonic-gate cp2 = wbuf; 1467c478bd9Sstevel@tonic-gate while (!any(*cp, " \t") && *cp != '\0') 1477c478bd9Sstevel@tonic-gate if (*cp == '"') { 1487c478bd9Sstevel@tonic-gate *cp2++ = *cp++; 1497c478bd9Sstevel@tonic-gate while (*cp != '\0' && *cp != '"') 1507c478bd9Sstevel@tonic-gate *cp2++ = *cp++; 1517c478bd9Sstevel@tonic-gate if (*cp == '"') 1527c478bd9Sstevel@tonic-gate *cp2++ = *cp++; 1537c478bd9Sstevel@tonic-gate } else 1547c478bd9Sstevel@tonic-gate *cp2++ = *cp++; 1557c478bd9Sstevel@tonic-gate *cp2 = '\0'; 1567c478bd9Sstevel@tonic-gate while (any(*cp, " \t")) 1577c478bd9Sstevel@tonic-gate cp++; 1587c478bd9Sstevel@tonic-gate if (*cp == '\0') 1597c478bd9Sstevel@tonic-gate return(NOSTR); 1607c478bd9Sstevel@tonic-gate return(cp); 1617c478bd9Sstevel@tonic-gate } 1627c478bd9Sstevel@tonic-gate 1637c478bd9Sstevel@tonic-gate /* 1647c478bd9Sstevel@tonic-gate * Copy str1 to str2, return pointer to null in str2. 1657c478bd9Sstevel@tonic-gate */ 1667c478bd9Sstevel@tonic-gate 1677c478bd9Sstevel@tonic-gate char * 1687c478bd9Sstevel@tonic-gate copy(char *str1, char *str2) 1697c478bd9Sstevel@tonic-gate { 1707c478bd9Sstevel@tonic-gate register char *s1, *s2; 1717c478bd9Sstevel@tonic-gate 1727c478bd9Sstevel@tonic-gate s1 = str1; 1737c478bd9Sstevel@tonic-gate s2 = str2; 1747c478bd9Sstevel@tonic-gate while (*s1) 1757c478bd9Sstevel@tonic-gate *s2++ = *s1++; 1767c478bd9Sstevel@tonic-gate *s2 = 0; 1777c478bd9Sstevel@tonic-gate return(s2); 1787c478bd9Sstevel@tonic-gate } 1797c478bd9Sstevel@tonic-gate 1807c478bd9Sstevel@tonic-gate /* 1817c478bd9Sstevel@tonic-gate * Is ch any of the characters in str? 1827c478bd9Sstevel@tonic-gate */ 1837c478bd9Sstevel@tonic-gate 1847c478bd9Sstevel@tonic-gate int 1857c478bd9Sstevel@tonic-gate any(int ch, char *str) 1867c478bd9Sstevel@tonic-gate { 1877c478bd9Sstevel@tonic-gate register char *f; 188*6c83d09fSrobbin int c; 1897c478bd9Sstevel@tonic-gate 1907c478bd9Sstevel@tonic-gate f = str; 1917c478bd9Sstevel@tonic-gate c = ch; 1927c478bd9Sstevel@tonic-gate while (*f) 1937c478bd9Sstevel@tonic-gate if (c == *f++) 1947c478bd9Sstevel@tonic-gate return(1); 1957c478bd9Sstevel@tonic-gate return(0); 1967c478bd9Sstevel@tonic-gate } 197