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 #include "lint.h" 31 #include <mtlib.h> 32 #include <stdarg.h> 33 #include <values.h> 34 #include <errno.h> 35 #include <thread.h> 36 #include <synch.h> 37 #include <sys/types.h> 38 #include "print.h" 39 #include "libc.h" 40 41 /*VARARGS2*/ 42 int 43 sprintf(char *string, const char *format, ...) 44 { 45 ssize_t count; 46 FILE siop; 47 va_list ap; 48 49 siop._cnt = MAXINT; 50 siop._base = siop._ptr = (unsigned char *)string; 51 siop._flag = _IOREAD; /* distinguish dummy file descriptor */ 52 va_start(ap, format); 53 54 count = _ndoprnt(format, ap, &siop, 0); 55 va_end(ap); 56 *siop._ptr = '\0'; /* plant terminating null character */ 57 if (count == EOF) { 58 return (EOF); 59 } 60 61 /* check for overflow */ 62 if ((size_t)count > MAXINT) { 63 errno = EOVERFLOW; 64 return (EOF); 65 } else { 66 return ((int)count); 67 } 68 } 69 70 #ifndef _LP64 71 72 /* 73 * 32-bit shadow function of sprintf(). 74 * When using the c89 compiler to build 32-bit applications, the size 75 * of intmax_t is 32-bits, otherwise the size of intmax_t is 64-bits. 76 * The shadow function uses 32-bit size of intmax_t for %j conversion. 77 * The #pragma redefine_extname in <stdio.h> selects the proper routine 78 * at compile time for the user application. 79 * NOTE: this function is only available in the 32-bit library. 80 */ 81 82 int 83 _sprintf_c89(char *string, const char *format, ...) 84 { 85 ssize_t count; 86 va_list ap; 87 88 va_start(ap, format); 89 count = _vsprintf_c89(string, format, ap); 90 va_end(ap); 91 return ((int)count); 92 } 93 94 #endif /* _LP64 */ 95