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 2732793011SKonstantin Belousov #include <sys/cdefs.h> 2832793011SKonstantin Belousov __FBSDID("$FreeBSD$"); 2932793011SKonstantin Belousov 30bb535300SJeff Roberson #include <stdarg.h> 317d9d7ca2SMike Makonnen #include <string.h> 32bb535300SJeff Roberson #include <unistd.h> 33bb535300SJeff Roberson #include <pthread.h> 34bb535300SJeff Roberson 358495e8b1SKonstantin Belousov #include "libc_private.h" 36bb535300SJeff Roberson #include "thr_private.h" 37bb535300SJeff Roberson 38bb535300SJeff Roberson static void pchar(int fd, char c); 39bb535300SJeff Roberson static void pstr(int fd, const char *s); 40bb535300SJeff Roberson 41bb535300SJeff Roberson /* 42bb535300SJeff Roberson * Write formatted output to stdout, in a thread-safe manner. 43bb535300SJeff Roberson * 44bb535300SJeff Roberson * Recognises the following conversions: 45bb535300SJeff Roberson * %c -> char 46bb535300SJeff Roberson * %d -> signed int (base 10) 47bb535300SJeff Roberson * %s -> string 48bb535300SJeff Roberson * %u -> unsigned int (base 10) 49bb535300SJeff Roberson * %x -> unsigned int (base 16) 50bb535300SJeff Roberson * %p -> unsigned int (base 16) 51bb535300SJeff Roberson */ 52bb535300SJeff Roberson void 53bb535300SJeff Roberson _thread_printf(int fd, const char *fmt, ...) 54bb535300SJeff Roberson { 55bb535300SJeff Roberson va_list ap; 563a7d122fSConrad Meyer 573a7d122fSConrad Meyer va_start(ap, fmt); 583a7d122fSConrad Meyer _thread_vprintf(fd, fmt, ap); 593a7d122fSConrad Meyer va_end(ap); 603a7d122fSConrad Meyer } 613a7d122fSConrad Meyer 623a7d122fSConrad Meyer void 633a7d122fSConrad Meyer _thread_vprintf(int fd, const char *fmt, va_list ap) 643a7d122fSConrad Meyer { 653a7d122fSConrad Meyer static const char digits[16] = "0123456789abcdef"; 66a091d823SDavid Xu char buf[20]; 67bb535300SJeff Roberson char *s; 68a091d823SDavid Xu unsigned long r, u; 69a091d823SDavid Xu int c; 70a091d823SDavid Xu long d; 71*a3c00561SConrad Meyer int islong, isalt; 72bb535300SJeff Roberson 73bb535300SJeff Roberson while ((c = *fmt++)) { 74*a3c00561SConrad Meyer isalt = 0; 75a091d823SDavid Xu islong = 0; 76bb535300SJeff Roberson if (c == '%') { 77a091d823SDavid Xu next: c = *fmt++; 78a091d823SDavid Xu if (c == '\0') 793a7d122fSConrad Meyer return; 80bb535300SJeff Roberson switch (c) { 81*a3c00561SConrad Meyer case '#': 82*a3c00561SConrad Meyer isalt = 1; 83*a3c00561SConrad Meyer goto next; 84bb535300SJeff Roberson case 'c': 85bb535300SJeff Roberson pchar(fd, va_arg(ap, int)); 86bb535300SJeff Roberson continue; 87bb535300SJeff Roberson case 's': 88bb535300SJeff Roberson pstr(fd, va_arg(ap, char *)); 89bb535300SJeff Roberson continue; 90a091d823SDavid Xu case 'l': 91a091d823SDavid Xu islong = 1; 92a091d823SDavid Xu goto next; 93a091d823SDavid Xu case 'p': 94*a3c00561SConrad Meyer pstr(fd, "0x"); 95a091d823SDavid Xu islong = 1; 96bb535300SJeff Roberson case 'd': 97bb535300SJeff Roberson case 'u': 98bb535300SJeff Roberson case 'x': 99*a3c00561SConrad Meyer if (c == 'x' && isalt) 100*a3c00561SConrad Meyer pstr(fd, "0x"); 101bb535300SJeff Roberson r = ((c == 'u') || (c == 'd')) ? 10 : 16; 102bb535300SJeff Roberson if (c == 'd') { 103a091d823SDavid Xu if (islong) 104a091d823SDavid Xu d = va_arg(ap, unsigned long); 105a091d823SDavid Xu else 106bb535300SJeff Roberson d = va_arg(ap, unsigned); 107bb535300SJeff Roberson if (d < 0) { 108bb535300SJeff Roberson pchar(fd, '-'); 109a091d823SDavid Xu u = (unsigned long)(d * -1); 110bb535300SJeff Roberson } else 111a091d823SDavid Xu u = (unsigned long)d; 112a091d823SDavid Xu } else { 113a091d823SDavid Xu if (islong) 114a091d823SDavid Xu u = va_arg(ap, unsigned long); 115a091d823SDavid Xu else 116bb535300SJeff Roberson u = va_arg(ap, unsigned); 117a091d823SDavid Xu } 118bb535300SJeff Roberson s = buf; 119bb535300SJeff Roberson do { 120bb535300SJeff Roberson *s++ = digits[u % r]; 121bb535300SJeff Roberson } while (u /= r); 122bb535300SJeff Roberson while (--s >= buf) 123bb535300SJeff Roberson pchar(fd, *s); 124bb535300SJeff Roberson continue; 125bb535300SJeff Roberson } 126bb535300SJeff Roberson } 127bb535300SJeff Roberson pchar(fd, c); 128bb535300SJeff Roberson } 129bb535300SJeff Roberson } 130bb535300SJeff Roberson 131bb535300SJeff Roberson /* 132bb535300SJeff Roberson * Write a single character to stdout, in a thread-safe manner. 133bb535300SJeff Roberson */ 134bb535300SJeff Roberson static void 135bb535300SJeff Roberson pchar(int fd, char c) 136bb535300SJeff Roberson { 137bb535300SJeff Roberson 13805e948d9SMike Makonnen __sys_write(fd, &c, 1); 139bb535300SJeff Roberson } 140bb535300SJeff Roberson 141bb535300SJeff Roberson /* 142bb535300SJeff Roberson * Write a string to stdout, in a thread-safe manner. 143bb535300SJeff Roberson */ 144bb535300SJeff Roberson static void 145bb535300SJeff Roberson pstr(int fd, const char *s) 146bb535300SJeff Roberson { 147bb535300SJeff Roberson 14805e948d9SMike Makonnen __sys_write(fd, s, strlen(s)); 149bb535300SJeff Roberson } 150bb535300SJeff Roberson 151