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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1988 AT&T */ 28 /* All Rights Reserved */ 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include "lint.h" 33 #include <mtlib.h> 34 #include <stdarg.h> 35 #include <values.h> 36 #include <errno.h> 37 #include <thread.h> 38 #include <synch.h> 39 #include <sys/types.h> 40 #include "print.h" 41 #include "libc.h" 42 43 /*VARARGS2*/ 44 int 45 sprintf(char *string, const char *format, ...) 46 { 47 ssize_t count; 48 FILE siop; 49 va_list ap; 50 51 siop._cnt = MAXINT; 52 siop._base = siop._ptr = (unsigned char *)string; 53 siop._flag = _IOREAD; /* distinguish dummy file descriptor */ 54 va_start(ap, format); 55 56 count = _ndoprnt(format, ap, &siop, 0); 57 va_end(ap); 58 *siop._ptr = '\0'; /* plant terminating null character */ 59 if (count == EOF) { 60 return (EOF); 61 } 62 63 /* check for overflow */ 64 if ((size_t)count > MAXINT) { 65 errno = EOVERFLOW; 66 return (EOF); 67 } else { 68 return ((int)count); 69 } 70 } 71 72 #ifndef _LP64 73 74 /* 75 * 32-bit shadow function of sprintf(). 76 * When using the c89 compiler to build 32-bit applications, the size 77 * of intmax_t is 32-bits, otherwise the size of intmax_t is 64-bits. 78 * The shadow function uses 32-bit size of intmax_t for %j conversion. 79 * The #pragma redefine_extname in <stdio.h> selects the proper routine 80 * at compile time for the user application. 81 * NOTE: this function is only available in the 32-bit library. 82 */ 83 84 int 85 _sprintf_c89(char *string, const char *format, ...) 86 { 87 ssize_t count; 88 va_list ap; 89 90 va_start(ap, format); 91 count = _vsprintf_c89(string, format, ap); 92 va_end(ap); 93 return ((int)count); 94 } 95 96 #endif /* _LP64 */ 97