1bb535300SJeff Roberson /*- 2bb535300SJeff Roberson * Copyright (c) 2002 Jonathan Mini <mini@freebsd.org> 3bb535300SJeff Roberson * All rights reserved. 4bb535300SJeff Roberson * 5bb535300SJeff Roberson * Redistribution and use in source and binary forms, with or without 6bb535300SJeff Roberson * modification, are permitted provided that the following conditions 7bb535300SJeff Roberson * are met: 8bb535300SJeff Roberson * 1. Redistributions of source code must retain the above copyright 9bb535300SJeff Roberson * notice, this list of conditions and the following disclaimer. 10bb535300SJeff Roberson * 2. Redistributions in binary form must reproduce the above copyright 11bb535300SJeff Roberson * notice, this list of conditions and the following disclaimer in the 12bb535300SJeff Roberson * documentation and/or other materials provided with the distribution. 13bb535300SJeff Roberson * 14bb535300SJeff Roberson * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15bb535300SJeff Roberson * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16bb535300SJeff Roberson * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17bb535300SJeff Roberson * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18bb535300SJeff Roberson * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19bb535300SJeff Roberson * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20bb535300SJeff Roberson * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21bb535300SJeff Roberson * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22bb535300SJeff Roberson * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23bb535300SJeff Roberson * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24bb535300SJeff Roberson * SUCH DAMAGE. 25bb535300SJeff Roberson * 26bb535300SJeff Roberson * $FreeBSD$ 27bb535300SJeff Roberson */ 28bb535300SJeff Roberson 29bb535300SJeff Roberson #include <sys/cdefs.h> 30bb535300SJeff Roberson __FBSDID("$FreeBSD$"); 31bb535300SJeff Roberson 32bb535300SJeff Roberson #include <sys/types.h> 33bb535300SJeff Roberson #include <sys/fcntl.h> 34bb535300SJeff Roberson #include <sys/uio.h> 35bb535300SJeff Roberson #include <errno.h> 36bb535300SJeff Roberson #include <stdarg.h> 37bb535300SJeff Roberson #include <unistd.h> 38bb535300SJeff Roberson #include <pthread.h> 39bb535300SJeff Roberson 40bb535300SJeff Roberson #include "thr_private.h" 41bb535300SJeff Roberson 42bb535300SJeff Roberson static void pchar(int fd, char c); 43bb535300SJeff Roberson static void pstr(int fd, const char *s); 44bb535300SJeff Roberson 45bb535300SJeff Roberson /* 46bb535300SJeff Roberson * Write formatted output to stdout, in a thread-safe manner. 47bb535300SJeff Roberson * 48bb535300SJeff Roberson * Recognises the following conversions: 49bb535300SJeff Roberson * %c -> char 50bb535300SJeff Roberson * %d -> signed int (base 10) 51bb535300SJeff Roberson * %s -> string 52bb535300SJeff Roberson * %u -> unsigned int (base 10) 53bb535300SJeff Roberson * %x -> unsigned int (base 16) 54bb535300SJeff Roberson * %p -> unsigned int (base 16) 55bb535300SJeff Roberson */ 56bb535300SJeff Roberson void 57bb535300SJeff Roberson _thread_printf(int fd, const char *fmt, ...) 58bb535300SJeff Roberson { 59bb535300SJeff Roberson static const char digits[16] = "0123456789abcdef"; 60bb535300SJeff Roberson va_list ap; 61bb535300SJeff Roberson char buf[10]; 62bb535300SJeff Roberson char *s; 63bb535300SJeff Roberson unsigned r, u; 64bb535300SJeff Roberson int c, d; 65bb535300SJeff Roberson 66bb535300SJeff Roberson va_start(ap, fmt); 67bb535300SJeff Roberson while ((c = *fmt++)) { 68bb535300SJeff Roberson if (c == '%') { 69bb535300SJeff Roberson c = *fmt++; 70bb535300SJeff Roberson switch (c) { 71bb535300SJeff Roberson case 'c': 72bb535300SJeff Roberson pchar(fd, va_arg(ap, int)); 73bb535300SJeff Roberson continue; 74bb535300SJeff Roberson case 's': 75bb535300SJeff Roberson pstr(fd, va_arg(ap, char *)); 76bb535300SJeff Roberson continue; 77bb535300SJeff Roberson case 'd': 78bb535300SJeff Roberson case 'u': 79bb535300SJeff Roberson case 'p': 80bb535300SJeff Roberson case 'x': 81bb535300SJeff Roberson r = ((c == 'u') || (c == 'd')) ? 10 : 16; 82bb535300SJeff Roberson if (c == 'd') { 83bb535300SJeff Roberson d = va_arg(ap, unsigned); 84bb535300SJeff Roberson if (d < 0) { 85bb535300SJeff Roberson pchar(fd, '-'); 86bb535300SJeff Roberson u = (unsigned)(d * -1); 87bb535300SJeff Roberson } else 88bb535300SJeff Roberson u = (unsigned)d; 89bb535300SJeff Roberson } else 90bb535300SJeff Roberson u = va_arg(ap, unsigned); 91bb535300SJeff Roberson s = buf; 92bb535300SJeff Roberson do { 93bb535300SJeff Roberson *s++ = digits[u % r]; 94bb535300SJeff Roberson } while (u /= r); 95bb535300SJeff Roberson while (--s >= buf) 96bb535300SJeff Roberson pchar(fd, *s); 97bb535300SJeff Roberson continue; 98bb535300SJeff Roberson } 99bb535300SJeff Roberson } 100bb535300SJeff Roberson pchar(fd, c); 101bb535300SJeff Roberson } 102bb535300SJeff Roberson va_end(ap); 103bb535300SJeff Roberson } 104bb535300SJeff Roberson 105bb535300SJeff Roberson /* 106bb535300SJeff Roberson * Write a single character to stdout, in a thread-safe manner. 107bb535300SJeff Roberson */ 108bb535300SJeff Roberson static void 109bb535300SJeff Roberson pchar(int fd, char c) 110bb535300SJeff Roberson { 111bb535300SJeff Roberson 112bb535300SJeff Roberson write(fd, &c, 1); 113bb535300SJeff Roberson } 114bb535300SJeff Roberson 115bb535300SJeff Roberson /* 116bb535300SJeff Roberson * Write a string to stdout, in a thread-safe manner. 117bb535300SJeff Roberson */ 118bb535300SJeff Roberson static void 119bb535300SJeff Roberson pstr(int fd, const char *s) 120bb535300SJeff Roberson { 121bb535300SJeff Roberson 122bb535300SJeff Roberson write(fd, s, strlen(s)); 123bb535300SJeff Roberson } 124bb535300SJeff Roberson 125