1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include "libuutil_common.h" 30*0Sstevel@tonic-gate 31*0Sstevel@tonic-gate #include <stdarg.h> 32*0Sstevel@tonic-gate #include <stdio.h> 33*0Sstevel@tonic-gate #include <stdlib.h> 34*0Sstevel@tonic-gate #include <string.h> 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate void * 37*0Sstevel@tonic-gate uu_zalloc(size_t n) 38*0Sstevel@tonic-gate { 39*0Sstevel@tonic-gate void *p = malloc(n); 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate if (p == NULL) { 42*0Sstevel@tonic-gate uu_set_error(UU_ERROR_SYSTEM); 43*0Sstevel@tonic-gate return (NULL); 44*0Sstevel@tonic-gate } 45*0Sstevel@tonic-gate 46*0Sstevel@tonic-gate (void) memset(p, 0, n); 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate return (p); 49*0Sstevel@tonic-gate } 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate void 52*0Sstevel@tonic-gate uu_free(void *p) 53*0Sstevel@tonic-gate { 54*0Sstevel@tonic-gate free(p); 55*0Sstevel@tonic-gate } 56*0Sstevel@tonic-gate 57*0Sstevel@tonic-gate char * 58*0Sstevel@tonic-gate uu_msprintf(const char *format, ...) 59*0Sstevel@tonic-gate { 60*0Sstevel@tonic-gate va_list args; 61*0Sstevel@tonic-gate char attic[1]; 62*0Sstevel@tonic-gate uint_t M, m; 63*0Sstevel@tonic-gate char *b; 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate va_start(args, format); 66*0Sstevel@tonic-gate M = vsnprintf(attic, 1, format, args); 67*0Sstevel@tonic-gate va_end(args); 68*0Sstevel@tonic-gate 69*0Sstevel@tonic-gate for (;;) { 70*0Sstevel@tonic-gate m = M; 71*0Sstevel@tonic-gate if ((b = uu_zalloc(m + 1)) == NULL) 72*0Sstevel@tonic-gate return (NULL); 73*0Sstevel@tonic-gate 74*0Sstevel@tonic-gate va_start(args, format); 75*0Sstevel@tonic-gate M = vsnprintf(b, m + 1, format, args); 76*0Sstevel@tonic-gate va_end(args); 77*0Sstevel@tonic-gate 78*0Sstevel@tonic-gate if (M == m) 79*0Sstevel@tonic-gate break; /* sizes match */ 80*0Sstevel@tonic-gate 81*0Sstevel@tonic-gate uu_free(b); 82*0Sstevel@tonic-gate } 83*0Sstevel@tonic-gate 84*0Sstevel@tonic-gate return (b); 85*0Sstevel@tonic-gate } 86