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 26 #ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.3 */ 27 28 #include "string.h" 29 #include "errno.h" 30 #include "stdlib.h" 31 32 #include "lp.h" 33 34 /** 35 ** addstring() - ADD ONE STRING TO ANOTHER, ALLOCATING SPACE AS NEEDED 36 **/ 37 38 int 39 #if defined(__STDC__) 40 addstring ( 41 char ** dst, 42 char * src 43 ) 44 #else 45 addstring (dst, src) 46 char **dst; 47 char *src; 48 #endif 49 { 50 size_t len; 51 52 if (!dst || !src) { 53 errno = EINVAL; 54 return (-1); 55 } 56 57 len = strlen(src) + 1; 58 59 if (*dst) { 60 if (!(*dst = Realloc(*dst, strlen(*dst) + len))) { 61 errno = ENOMEM; 62 return (-1); 63 } 64 } else { 65 if (!(*dst = Malloc(len))) { 66 errno = ENOMEM; 67 return (-1); 68 } 69 (*dst)[0] = '\0'; 70 } 71 72 (void) strcat(*dst, src); 73 return (0); 74 } 75