17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 77c478bd9Sstevel@tonic-gate * with the License. 87c478bd9Sstevel@tonic-gate * 97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 127c478bd9Sstevel@tonic-gate * and limitations under the License. 137c478bd9Sstevel@tonic-gate * 147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 197c478bd9Sstevel@tonic-gate * 207c478bd9Sstevel@tonic-gate * CDDL HEADER END 217c478bd9Sstevel@tonic-gate */ 227c478bd9Sstevel@tonic-gate /* 23*186507a7Smyers * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 247c478bd9Sstevel@tonic-gate * Use is subject to license terms. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 277c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate /* 307c478bd9Sstevel@tonic-gate * Implementations of the functions described in vsnprintf(3C) and string(3C), 317c478bd9Sstevel@tonic-gate * for use by the kernel, the standalone, and kmdb. Unless otherwise specified, 327c478bd9Sstevel@tonic-gate * these functions match the section 3C manpages. 337c478bd9Sstevel@tonic-gate */ 347c478bd9Sstevel@tonic-gate 357c478bd9Sstevel@tonic-gate #include <sys/types.h> 367c478bd9Sstevel@tonic-gate #include <sys/varargs.h> 377c478bd9Sstevel@tonic-gate #if defined(_BOOT) || defined(_KMDB) 387c478bd9Sstevel@tonic-gate #include <string.h> 397c478bd9Sstevel@tonic-gate #else 407c478bd9Sstevel@tonic-gate #include <sys/systm.h> 417c478bd9Sstevel@tonic-gate #endif 427c478bd9Sstevel@tonic-gate #ifdef _KERNEL 437c478bd9Sstevel@tonic-gate #include <sys/debug.h> 447c478bd9Sstevel@tonic-gate #endif /* _KERNEL */ 457c478bd9Sstevel@tonic-gate 467c478bd9Sstevel@tonic-gate /* 477c478bd9Sstevel@tonic-gate * kmdb has its own *printf routines, and thus doesn't need these versions too. 487c478bd9Sstevel@tonic-gate */ 497c478bd9Sstevel@tonic-gate #if !defined(_KMDB) 507c478bd9Sstevel@tonic-gate 517c478bd9Sstevel@tonic-gate #define ADDCHAR(c) if (bufp++ - buf < buflen) bufp[-1] = (c) 527c478bd9Sstevel@tonic-gate 537c478bd9Sstevel@tonic-gate /* 547c478bd9Sstevel@tonic-gate * Given a buffer 'buf' of size 'buflen', render as much of the string 557c478bd9Sstevel@tonic-gate * described by <fmt, args> as possible. The string will always be 567c478bd9Sstevel@tonic-gate * null-terminated, so the maximum string length is 'buflen - 1'. 577c478bd9Sstevel@tonic-gate * Returns the number of bytes that would be necessary to render the 587c478bd9Sstevel@tonic-gate * entire string, not including null terminator (just like vsnprintf(3S)). 597c478bd9Sstevel@tonic-gate * To determine buffer size in advance, use vsnprintf(NULL, 0, fmt, args) + 1. 607c478bd9Sstevel@tonic-gate * 617c478bd9Sstevel@tonic-gate * There is no support for floating point, and the C locale is assumed. 627c478bd9Sstevel@tonic-gate */ 637c478bd9Sstevel@tonic-gate size_t 647c478bd9Sstevel@tonic-gate vsnprintf(char *buf, size_t buflen, const char *fmt, va_list aargs) 657c478bd9Sstevel@tonic-gate { 667c478bd9Sstevel@tonic-gate uint64_t ul, tmp; 677c478bd9Sstevel@tonic-gate char *bufp = buf; /* current buffer pointer */ 68*186507a7Smyers int pad, width, base, sign, c, num; 69*186507a7Smyers int prec, h_count, l_count, dot_count; 70*186507a7Smyers int pad_count, transfer_count, left_align; 717c478bd9Sstevel@tonic-gate char *digits, *sp, *bs; 727c478bd9Sstevel@tonic-gate char numbuf[65]; /* sufficient for a 64-bit binary value */ 737c478bd9Sstevel@tonic-gate va_list args; 747c478bd9Sstevel@tonic-gate 757c478bd9Sstevel@tonic-gate /* 767c478bd9Sstevel@tonic-gate * Make a copy so that all our callers don't have to make a copy 777c478bd9Sstevel@tonic-gate */ 787c478bd9Sstevel@tonic-gate va_copy(args, aargs); 797c478bd9Sstevel@tonic-gate 807c478bd9Sstevel@tonic-gate if ((ssize_t)buflen < 0) 817c478bd9Sstevel@tonic-gate buflen = 0; 827c478bd9Sstevel@tonic-gate 837c478bd9Sstevel@tonic-gate while ((c = *fmt++) != '\0') { 847c478bd9Sstevel@tonic-gate if (c != '%') { 857c478bd9Sstevel@tonic-gate ADDCHAR(c); 867c478bd9Sstevel@tonic-gate continue; 877c478bd9Sstevel@tonic-gate } 887c478bd9Sstevel@tonic-gate 89*186507a7Smyers width = prec = 0; 90*186507a7Smyers left_align = base = sign = 0; 91*186507a7Smyers h_count = l_count = dot_count = 0; 92*186507a7Smyers pad = ' '; 93*186507a7Smyers digits = "0123456789abcdef"; 94*186507a7Smyers next_fmt: 957c478bd9Sstevel@tonic-gate if ((c = *fmt++) == '\0') 967c478bd9Sstevel@tonic-gate break; 977c478bd9Sstevel@tonic-gate 987c478bd9Sstevel@tonic-gate if (c >= 'A' && c <= 'Z') { 997c478bd9Sstevel@tonic-gate c += 'a' - 'A'; 1007c478bd9Sstevel@tonic-gate digits = "0123456789ABCDEF"; 1017c478bd9Sstevel@tonic-gate } 1027c478bd9Sstevel@tonic-gate 1037c478bd9Sstevel@tonic-gate switch (c) { 104*186507a7Smyers case '-': 105*186507a7Smyers left_align++; 106*186507a7Smyers goto next_fmt; 107*186507a7Smyers case '0': 108*186507a7Smyers if (dot_count == 0) 109*186507a7Smyers pad = '0'; 110*186507a7Smyers /*FALLTHROUGH*/ 111*186507a7Smyers case '1': 112*186507a7Smyers case '2': 113*186507a7Smyers case '3': 114*186507a7Smyers case '4': 115*186507a7Smyers case '5': 116*186507a7Smyers case '6': 117*186507a7Smyers case '7': 118*186507a7Smyers case '8': 119*186507a7Smyers case '9': 120*186507a7Smyers num = 0; 121*186507a7Smyers for (;;) { 122*186507a7Smyers num = 10 * num + c - '0'; 123*186507a7Smyers c = *fmt; 124*186507a7Smyers if (c < '0' || c > '9') 125*186507a7Smyers break; 126*186507a7Smyers else 127*186507a7Smyers fmt++; 128*186507a7Smyers } 129*186507a7Smyers if (dot_count > 0) 130*186507a7Smyers prec = num; 131*186507a7Smyers else 132*186507a7Smyers width = num; 133*186507a7Smyers 134*186507a7Smyers goto next_fmt; 135*186507a7Smyers case '.': 136*186507a7Smyers dot_count++; 137*186507a7Smyers goto next_fmt; 138*186507a7Smyers case '*': 139*186507a7Smyers width = (int)va_arg(args, int); 140*186507a7Smyers goto next_fmt; 141*186507a7Smyers case 'l': 142*186507a7Smyers l_count++; 143*186507a7Smyers goto next_fmt; 144*186507a7Smyers case 'h': 145*186507a7Smyers h_count++; 146*186507a7Smyers goto next_fmt; 1477c478bd9Sstevel@tonic-gate case 'd': 1487c478bd9Sstevel@tonic-gate sign = 1; 1497c478bd9Sstevel@tonic-gate /*FALLTHROUGH*/ 1507c478bd9Sstevel@tonic-gate case 'u': 1517c478bd9Sstevel@tonic-gate base = 10; 1527c478bd9Sstevel@tonic-gate break; 1537c478bd9Sstevel@tonic-gate case 'p': 154*186507a7Smyers l_count = 1; 1557c478bd9Sstevel@tonic-gate /*FALLTHROUGH*/ 1567c478bd9Sstevel@tonic-gate case 'x': 1577c478bd9Sstevel@tonic-gate base = 16; 1587c478bd9Sstevel@tonic-gate break; 1597c478bd9Sstevel@tonic-gate case 'o': 1607c478bd9Sstevel@tonic-gate base = 8; 1617c478bd9Sstevel@tonic-gate break; 1627c478bd9Sstevel@tonic-gate case 'b': 163*186507a7Smyers l_count = 0; 1647c478bd9Sstevel@tonic-gate base = 1; 1657c478bd9Sstevel@tonic-gate break; 1667c478bd9Sstevel@tonic-gate case 'c': 167*186507a7Smyers c = (char)va_arg(args, char); 168*186507a7Smyers ADDCHAR(c); 1697c478bd9Sstevel@tonic-gate break; 1707c478bd9Sstevel@tonic-gate case 's': 1717c478bd9Sstevel@tonic-gate sp = va_arg(args, char *); 172*186507a7Smyers if (sp == NULL) { 1737c478bd9Sstevel@tonic-gate sp = "<null string>"; 174*186507a7Smyers /* avoid truncation */ 175*186507a7Smyers prec = strlen(sp); 176*186507a7Smyers } 177*186507a7Smyers /* 178*186507a7Smyers * Handle simple case specially to avoid 179*186507a7Smyers * performance hit of strlen() 180*186507a7Smyers */ 181*186507a7Smyers if (prec == 0 && width == 0) { 182*186507a7Smyers while ((c = *sp++) != 0) 183*186507a7Smyers ADDCHAR(c); 184*186507a7Smyers break; 185*186507a7Smyers } 186*186507a7Smyers transfer_count = strlen(sp); 187*186507a7Smyers if (prec > 0) { 188*186507a7Smyers /* trim string if too long */ 189*186507a7Smyers if (transfer_count > prec) 190*186507a7Smyers transfer_count = prec; 191*186507a7Smyers /* widen field if too narrow */ 192*186507a7Smyers if (prec > width) 193*186507a7Smyers width = prec; 194*186507a7Smyers } 195*186507a7Smyers if (width > transfer_count) 196*186507a7Smyers pad_count = width - transfer_count; 197*186507a7Smyers else 198*186507a7Smyers pad_count = 0; 199*186507a7Smyers while ((!left_align) && (pad_count-- > 0)) 200*186507a7Smyers ADDCHAR(' '); 201*186507a7Smyers /* ADDCHAR() evaluates arg at most once */ 202*186507a7Smyers while (transfer_count-- > 0) 203*186507a7Smyers ADDCHAR(*sp++); 204*186507a7Smyers while ((left_align) && (pad_count-- > 0)) 205*186507a7Smyers ADDCHAR(' '); 2067c478bd9Sstevel@tonic-gate break; 2077c478bd9Sstevel@tonic-gate case '%': 2087c478bd9Sstevel@tonic-gate ADDCHAR('%'); 2097c478bd9Sstevel@tonic-gate break; 2107c478bd9Sstevel@tonic-gate } 2117c478bd9Sstevel@tonic-gate 2127c478bd9Sstevel@tonic-gate if (base == 0) 2137c478bd9Sstevel@tonic-gate continue; 2147c478bd9Sstevel@tonic-gate 215*186507a7Smyers if (h_count == 0 && l_count == 0) 216*186507a7Smyers if (sign) 217*186507a7Smyers ul = (int64_t)va_arg(args, int); 218*186507a7Smyers else 219*186507a7Smyers ul = (int64_t)va_arg(args, unsigned int); 220*186507a7Smyers else if (l_count > 1) 221*186507a7Smyers if (sign) 222*186507a7Smyers ul = (int64_t)va_arg(args, int64_t); 223*186507a7Smyers else 224*186507a7Smyers ul = (int64_t)va_arg(args, uint64_t); 225*186507a7Smyers else if (l_count > 0) 226*186507a7Smyers if (sign) 227*186507a7Smyers ul = (int64_t)va_arg(args, long); 228*186507a7Smyers else 229*186507a7Smyers ul = (int64_t)va_arg(args, unsigned long); 230*186507a7Smyers else if (h_count > 1) 231*186507a7Smyers if (sign) 232*186507a7Smyers ul = (int64_t)va_arg(args, char); 233*186507a7Smyers else 234*186507a7Smyers ul = (int64_t)va_arg(args, unsigned char); 235*186507a7Smyers else if (h_count > 0) 236*186507a7Smyers if (sign) 237*186507a7Smyers ul = (int64_t)va_arg(args, short); 238*186507a7Smyers else 239*186507a7Smyers ul = (int64_t)va_arg(args, unsigned short); 2407c478bd9Sstevel@tonic-gate 2417c478bd9Sstevel@tonic-gate if (sign && (int64_t)ul < 0) 2427c478bd9Sstevel@tonic-gate ul = -ul; 2437c478bd9Sstevel@tonic-gate else 2447c478bd9Sstevel@tonic-gate sign = 0; 2457c478bd9Sstevel@tonic-gate 2467c478bd9Sstevel@tonic-gate if (c == 'b') { 2477c478bd9Sstevel@tonic-gate bs = va_arg(args, char *); 2487c478bd9Sstevel@tonic-gate base = *bs++; 2497c478bd9Sstevel@tonic-gate } 2507c478bd9Sstevel@tonic-gate 251*186507a7Smyers /* avoid repeated division if width is 0 */ 252*186507a7Smyers if (width > 0) { 253*186507a7Smyers tmp = ul; 254*186507a7Smyers do { 255*186507a7Smyers width--; 256*186507a7Smyers } while ((tmp /= base) != 0); 257*186507a7Smyers } 2587c478bd9Sstevel@tonic-gate 2597c478bd9Sstevel@tonic-gate if (sign && pad == '0') 2607c478bd9Sstevel@tonic-gate ADDCHAR('-'); 2617c478bd9Sstevel@tonic-gate while (width-- > sign) 2627c478bd9Sstevel@tonic-gate ADDCHAR(pad); 2637c478bd9Sstevel@tonic-gate if (sign && pad == ' ') 2647c478bd9Sstevel@tonic-gate ADDCHAR('-'); 2657c478bd9Sstevel@tonic-gate 2667c478bd9Sstevel@tonic-gate sp = numbuf; 2677c478bd9Sstevel@tonic-gate tmp = ul; 2687c478bd9Sstevel@tonic-gate do { 2697c478bd9Sstevel@tonic-gate *sp++ = digits[tmp % base]; 2707c478bd9Sstevel@tonic-gate } while ((tmp /= base) != 0); 2717c478bd9Sstevel@tonic-gate 2727c478bd9Sstevel@tonic-gate while (sp > numbuf) { 2737c478bd9Sstevel@tonic-gate sp--; 2747c478bd9Sstevel@tonic-gate ADDCHAR(*sp); 2757c478bd9Sstevel@tonic-gate } 2767c478bd9Sstevel@tonic-gate 2777c478bd9Sstevel@tonic-gate if (c == 'b' && ul != 0) { 2787c478bd9Sstevel@tonic-gate int any = 0; 2797c478bd9Sstevel@tonic-gate c = *bs++; 2807c478bd9Sstevel@tonic-gate while (c != 0) { 2817c478bd9Sstevel@tonic-gate if (ul & (1 << (c - 1))) { 2827c478bd9Sstevel@tonic-gate if (any++ == 0) 2837c478bd9Sstevel@tonic-gate ADDCHAR('<'); 2847c478bd9Sstevel@tonic-gate while ((c = *bs++) >= 32) 2857c478bd9Sstevel@tonic-gate ADDCHAR(c); 2867c478bd9Sstevel@tonic-gate ADDCHAR(','); 2877c478bd9Sstevel@tonic-gate } else { 2887c478bd9Sstevel@tonic-gate while ((c = *bs++) >= 32) 2897c478bd9Sstevel@tonic-gate continue; 2907c478bd9Sstevel@tonic-gate } 2917c478bd9Sstevel@tonic-gate } 2927c478bd9Sstevel@tonic-gate if (any) { 2937c478bd9Sstevel@tonic-gate bufp--; 2947c478bd9Sstevel@tonic-gate ADDCHAR('>'); 2957c478bd9Sstevel@tonic-gate } 2967c478bd9Sstevel@tonic-gate } 2977c478bd9Sstevel@tonic-gate } 2987c478bd9Sstevel@tonic-gate if (bufp - buf < buflen) 2997c478bd9Sstevel@tonic-gate bufp[0] = c; 3007c478bd9Sstevel@tonic-gate else if (buflen != 0) 3017c478bd9Sstevel@tonic-gate buf[buflen - 1] = c; 3027c478bd9Sstevel@tonic-gate 3037c478bd9Sstevel@tonic-gate va_end(args); 3047c478bd9Sstevel@tonic-gate 3057c478bd9Sstevel@tonic-gate return (bufp - buf); 3067c478bd9Sstevel@tonic-gate } 3077c478bd9Sstevel@tonic-gate 3087c478bd9Sstevel@tonic-gate /*PRINTFLIKE1*/ 3097c478bd9Sstevel@tonic-gate size_t 3107c478bd9Sstevel@tonic-gate snprintf(char *buf, size_t buflen, const char *fmt, ...) 3117c478bd9Sstevel@tonic-gate { 3127c478bd9Sstevel@tonic-gate va_list args; 3137c478bd9Sstevel@tonic-gate 3147c478bd9Sstevel@tonic-gate va_start(args, fmt); 3157c478bd9Sstevel@tonic-gate buflen = vsnprintf(buf, buflen, fmt, args); 3167c478bd9Sstevel@tonic-gate va_end(args); 3177c478bd9Sstevel@tonic-gate 3187c478bd9Sstevel@tonic-gate return (buflen); 3197c478bd9Sstevel@tonic-gate } 3207c478bd9Sstevel@tonic-gate 3217c478bd9Sstevel@tonic-gate #if defined(_BOOT) 3227c478bd9Sstevel@tonic-gate /* 3237c478bd9Sstevel@tonic-gate * The sprintf() and vsprintf() routines aren't shared with the kernel because 3247c478bd9Sstevel@tonic-gate * the DDI mandates that they return the buffer rather than its length. 3257c478bd9Sstevel@tonic-gate */ 3267c478bd9Sstevel@tonic-gate /*PRINTFLIKE2*/ 3277c478bd9Sstevel@tonic-gate int 3287c478bd9Sstevel@tonic-gate sprintf(char *buf, const char *fmt, ...) 3297c478bd9Sstevel@tonic-gate { 3307c478bd9Sstevel@tonic-gate va_list args; 3317c478bd9Sstevel@tonic-gate 3327c478bd9Sstevel@tonic-gate va_start(args, fmt); 3337c478bd9Sstevel@tonic-gate (void) vsnprintf(buf, INT_MAX, fmt, args); 3347c478bd9Sstevel@tonic-gate va_end(args); 3357c478bd9Sstevel@tonic-gate 3367c478bd9Sstevel@tonic-gate return (strlen(buf)); 3377c478bd9Sstevel@tonic-gate } 3387c478bd9Sstevel@tonic-gate 3397c478bd9Sstevel@tonic-gate int 3407c478bd9Sstevel@tonic-gate vsprintf(char *buf, const char *fmt, va_list args) 3417c478bd9Sstevel@tonic-gate { 3427c478bd9Sstevel@tonic-gate (void) vsnprintf(buf, INT_MAX, fmt, args); 3437c478bd9Sstevel@tonic-gate return (strlen(buf)); 3447c478bd9Sstevel@tonic-gate } 3457c478bd9Sstevel@tonic-gate #endif 3467c478bd9Sstevel@tonic-gate 3477c478bd9Sstevel@tonic-gate #endif /* !_KMDB */ 3487c478bd9Sstevel@tonic-gate 3497c478bd9Sstevel@tonic-gate char * 3507c478bd9Sstevel@tonic-gate strcat(char *s1, const char *s2) 3517c478bd9Sstevel@tonic-gate { 3527c478bd9Sstevel@tonic-gate char *os1 = s1; 3537c478bd9Sstevel@tonic-gate 3547c478bd9Sstevel@tonic-gate while (*s1++ != '\0') 3557c478bd9Sstevel@tonic-gate ; 3567c478bd9Sstevel@tonic-gate s1--; 3577c478bd9Sstevel@tonic-gate while ((*s1++ = *s2++) != '\0') 3587c478bd9Sstevel@tonic-gate ; 3597c478bd9Sstevel@tonic-gate return (os1); 3607c478bd9Sstevel@tonic-gate } 3617c478bd9Sstevel@tonic-gate 3627c478bd9Sstevel@tonic-gate char * 3637c478bd9Sstevel@tonic-gate strchr(const char *sp, int c) 3647c478bd9Sstevel@tonic-gate { 3657c478bd9Sstevel@tonic-gate do { 3667c478bd9Sstevel@tonic-gate if (*sp == (char)c) 3677c478bd9Sstevel@tonic-gate return ((char *)sp); 3687c478bd9Sstevel@tonic-gate } while (*sp++); 3697c478bd9Sstevel@tonic-gate return (NULL); 3707c478bd9Sstevel@tonic-gate } 3717c478bd9Sstevel@tonic-gate 3727c478bd9Sstevel@tonic-gate int 3737c478bd9Sstevel@tonic-gate strcmp(const char *s1, const char *s2) 3747c478bd9Sstevel@tonic-gate { 3757c478bd9Sstevel@tonic-gate while (*s1 == *s2++) 3767c478bd9Sstevel@tonic-gate if (*s1++ == '\0') 3777c478bd9Sstevel@tonic-gate return (0); 3787c478bd9Sstevel@tonic-gate return (*(unsigned char *)s1 - *(unsigned char *)--s2); 3797c478bd9Sstevel@tonic-gate } 3807c478bd9Sstevel@tonic-gate 3817c478bd9Sstevel@tonic-gate int 3827c478bd9Sstevel@tonic-gate strncmp(const char *s1, const char *s2, size_t n) 3837c478bd9Sstevel@tonic-gate { 3847c478bd9Sstevel@tonic-gate if (s1 == s2) 3857c478bd9Sstevel@tonic-gate return (0); 3867c478bd9Sstevel@tonic-gate n++; 3877c478bd9Sstevel@tonic-gate while (--n != 0 && *s1 == *s2++) 3887c478bd9Sstevel@tonic-gate if (*s1++ == '\0') 3897c478bd9Sstevel@tonic-gate return (0); 3907c478bd9Sstevel@tonic-gate return ((n == 0) ? 0 : *(unsigned char *)s1 - *(unsigned char *)--s2); 3917c478bd9Sstevel@tonic-gate } 3927c478bd9Sstevel@tonic-gate 3937c478bd9Sstevel@tonic-gate static const char charmap[] = { 3947c478bd9Sstevel@tonic-gate '\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007', 3957c478bd9Sstevel@tonic-gate '\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017', 3967c478bd9Sstevel@tonic-gate '\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027', 3977c478bd9Sstevel@tonic-gate '\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037', 3987c478bd9Sstevel@tonic-gate '\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047', 3997c478bd9Sstevel@tonic-gate '\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057', 4007c478bd9Sstevel@tonic-gate '\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067', 4017c478bd9Sstevel@tonic-gate '\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077', 4027c478bd9Sstevel@tonic-gate '\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147', 4037c478bd9Sstevel@tonic-gate '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157', 4047c478bd9Sstevel@tonic-gate '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167', 4057c478bd9Sstevel@tonic-gate '\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137', 4067c478bd9Sstevel@tonic-gate '\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147', 4077c478bd9Sstevel@tonic-gate '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157', 4087c478bd9Sstevel@tonic-gate '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167', 4097c478bd9Sstevel@tonic-gate '\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177', 4107c478bd9Sstevel@tonic-gate '\200', '\201', '\202', '\203', '\204', '\205', '\206', '\207', 4117c478bd9Sstevel@tonic-gate '\210', '\211', '\212', '\213', '\214', '\215', '\216', '\217', 4127c478bd9Sstevel@tonic-gate '\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227', 4137c478bd9Sstevel@tonic-gate '\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237', 4147c478bd9Sstevel@tonic-gate '\240', '\241', '\242', '\243', '\244', '\245', '\246', '\247', 4157c478bd9Sstevel@tonic-gate '\250', '\251', '\252', '\253', '\254', '\255', '\256', '\257', 4167c478bd9Sstevel@tonic-gate '\260', '\261', '\262', '\263', '\264', '\265', '\266', '\267', 4177c478bd9Sstevel@tonic-gate '\270', '\271', '\272', '\273', '\274', '\275', '\276', '\277', 4187c478bd9Sstevel@tonic-gate '\300', '\301', '\302', '\303', '\304', '\305', '\306', '\307', 4197c478bd9Sstevel@tonic-gate '\310', '\311', '\312', '\313', '\314', '\315', '\316', '\317', 4207c478bd9Sstevel@tonic-gate '\320', '\321', '\322', '\323', '\324', '\325', '\326', '\327', 4217c478bd9Sstevel@tonic-gate '\330', '\331', '\332', '\333', '\334', '\335', '\336', '\337', 4227c478bd9Sstevel@tonic-gate '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347', 4237c478bd9Sstevel@tonic-gate '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357', 4247c478bd9Sstevel@tonic-gate '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367', 4257c478bd9Sstevel@tonic-gate '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377', 4267c478bd9Sstevel@tonic-gate }; 4277c478bd9Sstevel@tonic-gate 4287c478bd9Sstevel@tonic-gate int 4297c478bd9Sstevel@tonic-gate strcasecmp(const char *s1, const char *s2) 4307c478bd9Sstevel@tonic-gate { 4317c478bd9Sstevel@tonic-gate const unsigned char *cm = (const unsigned char *)charmap; 4327c478bd9Sstevel@tonic-gate const unsigned char *us1 = (const unsigned char *)s1; 4337c478bd9Sstevel@tonic-gate const unsigned char *us2 = (const unsigned char *)s2; 4347c478bd9Sstevel@tonic-gate 4357c478bd9Sstevel@tonic-gate while (cm[*us1] == cm[*us2++]) 4367c478bd9Sstevel@tonic-gate if (*us1++ == '\0') 4377c478bd9Sstevel@tonic-gate return (0); 4387c478bd9Sstevel@tonic-gate return (cm[*us1] - cm[*(us2 - 1)]); 4397c478bd9Sstevel@tonic-gate } 4407c478bd9Sstevel@tonic-gate 4417c478bd9Sstevel@tonic-gate int 4427c478bd9Sstevel@tonic-gate strncasecmp(const char *s1, const char *s2, size_t n) 4437c478bd9Sstevel@tonic-gate { 4447c478bd9Sstevel@tonic-gate const unsigned char *cm = (const unsigned char *)charmap; 4457c478bd9Sstevel@tonic-gate const unsigned char *us1 = (const unsigned char *)s1; 4467c478bd9Sstevel@tonic-gate const unsigned char *us2 = (const unsigned char *)s2; 4477c478bd9Sstevel@tonic-gate 4487c478bd9Sstevel@tonic-gate while (n != 0 && cm[*us1] == cm[*us2++]) { 4497c478bd9Sstevel@tonic-gate if (*us1++ == '\0') 4507c478bd9Sstevel@tonic-gate return (0); 4517c478bd9Sstevel@tonic-gate n--; 4527c478bd9Sstevel@tonic-gate } 4537c478bd9Sstevel@tonic-gate return (n == 0 ? 0 : cm[*us1] - cm[*(us2 - 1)]); 4547c478bd9Sstevel@tonic-gate } 4557c478bd9Sstevel@tonic-gate 4567c478bd9Sstevel@tonic-gate char * 4577c478bd9Sstevel@tonic-gate strcpy(char *s1, const char *s2) 4587c478bd9Sstevel@tonic-gate { 4597c478bd9Sstevel@tonic-gate char *os1 = s1; 4607c478bd9Sstevel@tonic-gate 4617c478bd9Sstevel@tonic-gate while ((*s1++ = *s2++) != '\0') 4627c478bd9Sstevel@tonic-gate ; 4637c478bd9Sstevel@tonic-gate return (os1); 4647c478bd9Sstevel@tonic-gate } 4657c478bd9Sstevel@tonic-gate 4667c478bd9Sstevel@tonic-gate char * 4677c478bd9Sstevel@tonic-gate strncpy(char *s1, const char *s2, size_t n) 4687c478bd9Sstevel@tonic-gate { 4697c478bd9Sstevel@tonic-gate char *os1 = s1; 4707c478bd9Sstevel@tonic-gate 4717c478bd9Sstevel@tonic-gate n++; 4727c478bd9Sstevel@tonic-gate while (--n != 0 && (*s1++ = *s2++) != '\0') 4737c478bd9Sstevel@tonic-gate ; 4747c478bd9Sstevel@tonic-gate if (n != 0) 4757c478bd9Sstevel@tonic-gate while (--n != 0) 4767c478bd9Sstevel@tonic-gate *s1++ = '\0'; 4777c478bd9Sstevel@tonic-gate return (os1); 4787c478bd9Sstevel@tonic-gate } 4797c478bd9Sstevel@tonic-gate 4807c478bd9Sstevel@tonic-gate char * 4817c478bd9Sstevel@tonic-gate strrchr(const char *sp, int c) 4827c478bd9Sstevel@tonic-gate { 4837c478bd9Sstevel@tonic-gate char *r = NULL; 4847c478bd9Sstevel@tonic-gate 4857c478bd9Sstevel@tonic-gate do { 4867c478bd9Sstevel@tonic-gate if (*sp == (char)c) 4877c478bd9Sstevel@tonic-gate r = (char *)sp; 4887c478bd9Sstevel@tonic-gate } while (*sp++); 4897c478bd9Sstevel@tonic-gate 4907c478bd9Sstevel@tonic-gate return (r); 4917c478bd9Sstevel@tonic-gate } 4927c478bd9Sstevel@tonic-gate 4937c478bd9Sstevel@tonic-gate char * 4947c478bd9Sstevel@tonic-gate strstr(const char *as1, const char *as2) 4957c478bd9Sstevel@tonic-gate { 4967c478bd9Sstevel@tonic-gate const char *s1, *s2; 4977c478bd9Sstevel@tonic-gate const char *tptr; 4987c478bd9Sstevel@tonic-gate char c; 4997c478bd9Sstevel@tonic-gate 5007c478bd9Sstevel@tonic-gate s1 = as1; 5017c478bd9Sstevel@tonic-gate s2 = as2; 5027c478bd9Sstevel@tonic-gate 5037c478bd9Sstevel@tonic-gate if (s2 == NULL || *s2 == '\0') 5047c478bd9Sstevel@tonic-gate return ((char *)s1); 5057c478bd9Sstevel@tonic-gate c = *s2; 5067c478bd9Sstevel@tonic-gate 5077c478bd9Sstevel@tonic-gate while (*s1) 5087c478bd9Sstevel@tonic-gate if (*s1++ == c) { 5097c478bd9Sstevel@tonic-gate tptr = s1; 5107c478bd9Sstevel@tonic-gate while ((c = *++s2) == *s1++ && c) 5117c478bd9Sstevel@tonic-gate ; 5127c478bd9Sstevel@tonic-gate if (c == 0) 5137c478bd9Sstevel@tonic-gate return ((char *)tptr - 1); 5147c478bd9Sstevel@tonic-gate s1 = tptr; 5157c478bd9Sstevel@tonic-gate s2 = as2; 5167c478bd9Sstevel@tonic-gate c = *s2; 5177c478bd9Sstevel@tonic-gate } 5187c478bd9Sstevel@tonic-gate 5197c478bd9Sstevel@tonic-gate return (NULL); 5207c478bd9Sstevel@tonic-gate } 5217c478bd9Sstevel@tonic-gate 5227c478bd9Sstevel@tonic-gate char * 5237c478bd9Sstevel@tonic-gate strpbrk(const char *string, const char *brkset) 5247c478bd9Sstevel@tonic-gate { 5257c478bd9Sstevel@tonic-gate const char *p; 5267c478bd9Sstevel@tonic-gate 5277c478bd9Sstevel@tonic-gate do { 5287c478bd9Sstevel@tonic-gate for (p = brkset; *p != '\0' && *p != *string; ++p) 5297c478bd9Sstevel@tonic-gate ; 5307c478bd9Sstevel@tonic-gate if (*p != '\0') 5317c478bd9Sstevel@tonic-gate return ((char *)string); 5327c478bd9Sstevel@tonic-gate } while (*string++); 5337c478bd9Sstevel@tonic-gate 5347c478bd9Sstevel@tonic-gate return (NULL); 5357c478bd9Sstevel@tonic-gate } 5367c478bd9Sstevel@tonic-gate 5377c478bd9Sstevel@tonic-gate char * 5387c478bd9Sstevel@tonic-gate strncat(char *s1, const char *s2, size_t n) 5397c478bd9Sstevel@tonic-gate { 5407c478bd9Sstevel@tonic-gate char *os1 = s1; 5417c478bd9Sstevel@tonic-gate 5427c478bd9Sstevel@tonic-gate n++; 5437c478bd9Sstevel@tonic-gate while (*s1++ != '\0') 5447c478bd9Sstevel@tonic-gate ; 5457c478bd9Sstevel@tonic-gate --s1; 5467c478bd9Sstevel@tonic-gate while ((*s1++ = *s2++) != '\0') { 5477c478bd9Sstevel@tonic-gate if (--n == 0) { 5487c478bd9Sstevel@tonic-gate s1[-1] = '\0'; 5497c478bd9Sstevel@tonic-gate break; 5507c478bd9Sstevel@tonic-gate } 5517c478bd9Sstevel@tonic-gate } 5527c478bd9Sstevel@tonic-gate return (os1); 5537c478bd9Sstevel@tonic-gate } 5547c478bd9Sstevel@tonic-gate 5557c478bd9Sstevel@tonic-gate #if defined(_BOOT) || defined(_KMDB) 5567c478bd9Sstevel@tonic-gate #define bcopy(src, dst, n) (void) memcpy((dst), (src), (n)) 5577c478bd9Sstevel@tonic-gate #endif 5587c478bd9Sstevel@tonic-gate 5597c478bd9Sstevel@tonic-gate size_t 5607c478bd9Sstevel@tonic-gate strlcat(char *dst, const char *src, size_t dstsize) 5617c478bd9Sstevel@tonic-gate { 5627c478bd9Sstevel@tonic-gate char *df = dst; 5637c478bd9Sstevel@tonic-gate size_t left = dstsize; 5647c478bd9Sstevel@tonic-gate size_t l1; 5657c478bd9Sstevel@tonic-gate size_t l2 = strlen(src); 5667c478bd9Sstevel@tonic-gate size_t copied; 5677c478bd9Sstevel@tonic-gate 5687c478bd9Sstevel@tonic-gate while (left-- != 0 && *df != '\0') 5697c478bd9Sstevel@tonic-gate df++; 5707c478bd9Sstevel@tonic-gate l1 = df - dst; 5717c478bd9Sstevel@tonic-gate if (dstsize == l1) 5727c478bd9Sstevel@tonic-gate return (l1 + l2); 5737c478bd9Sstevel@tonic-gate 5747c478bd9Sstevel@tonic-gate copied = l1 + l2 >= dstsize ? dstsize - l1 - 1 : l2; 5757c478bd9Sstevel@tonic-gate bcopy(src, dst + l1, copied); 5767c478bd9Sstevel@tonic-gate dst[l1+copied] = '\0'; 5777c478bd9Sstevel@tonic-gate return (l1 + l2); 5787c478bd9Sstevel@tonic-gate } 5797c478bd9Sstevel@tonic-gate 5807c478bd9Sstevel@tonic-gate size_t 5817c478bd9Sstevel@tonic-gate strlcpy(char *dst, const char *src, size_t len) 5827c478bd9Sstevel@tonic-gate { 5837c478bd9Sstevel@tonic-gate size_t slen = strlen(src); 5847c478bd9Sstevel@tonic-gate size_t copied; 5857c478bd9Sstevel@tonic-gate 5867c478bd9Sstevel@tonic-gate if (len == 0) 5877c478bd9Sstevel@tonic-gate return (slen); 5887c478bd9Sstevel@tonic-gate 5897c478bd9Sstevel@tonic-gate if (slen >= len) 5907c478bd9Sstevel@tonic-gate copied = len - 1; 5917c478bd9Sstevel@tonic-gate else 5927c478bd9Sstevel@tonic-gate copied = slen; 5937c478bd9Sstevel@tonic-gate bcopy(src, dst, copied); 5947c478bd9Sstevel@tonic-gate dst[copied] = '\0'; 5957c478bd9Sstevel@tonic-gate return (slen); 5967c478bd9Sstevel@tonic-gate } 5977c478bd9Sstevel@tonic-gate 5987c478bd9Sstevel@tonic-gate size_t 5997c478bd9Sstevel@tonic-gate strspn(const char *string, const char *charset) 6007c478bd9Sstevel@tonic-gate { 6017c478bd9Sstevel@tonic-gate const char *p, *q; 6027c478bd9Sstevel@tonic-gate 6037c478bd9Sstevel@tonic-gate for (q = string; *q != '\0'; ++q) { 6047c478bd9Sstevel@tonic-gate for (p = charset; *p != '\0' && *p != *q; ++p) 6057c478bd9Sstevel@tonic-gate ; 6067c478bd9Sstevel@tonic-gate if (*p == '\0') 6077c478bd9Sstevel@tonic-gate break; 6087c478bd9Sstevel@tonic-gate } 6097c478bd9Sstevel@tonic-gate 6107c478bd9Sstevel@tonic-gate return (q - string); 6117c478bd9Sstevel@tonic-gate } 6127c478bd9Sstevel@tonic-gate 6137c478bd9Sstevel@tonic-gate /* 6147c478bd9Sstevel@tonic-gate * Unless mentioned otherwise, all of the routines below should be added to 6157c478bd9Sstevel@tonic-gate * the Solaris DDI as necessary. For now, only provide them to standalone. 6167c478bd9Sstevel@tonic-gate */ 6177c478bd9Sstevel@tonic-gate #if defined(_BOOT) || defined(_KMDB) 6187c478bd9Sstevel@tonic-gate char * 6197c478bd9Sstevel@tonic-gate strtok(char *string, const char *sepset) 6207c478bd9Sstevel@tonic-gate { 6217c478bd9Sstevel@tonic-gate char *p, *q, *r; 6227c478bd9Sstevel@tonic-gate static char *savept; 6237c478bd9Sstevel@tonic-gate 6247c478bd9Sstevel@tonic-gate /* 6257c478bd9Sstevel@tonic-gate * Set `p' to our current location in the string. 6267c478bd9Sstevel@tonic-gate */ 6277c478bd9Sstevel@tonic-gate p = (string == NULL) ? savept : string; 6287c478bd9Sstevel@tonic-gate if (p == NULL) 6297c478bd9Sstevel@tonic-gate return (NULL); 6307c478bd9Sstevel@tonic-gate 6317c478bd9Sstevel@tonic-gate /* 6327c478bd9Sstevel@tonic-gate * Skip leading separators; bail if no tokens remain. 6337c478bd9Sstevel@tonic-gate */ 6347c478bd9Sstevel@tonic-gate q = p + strspn(p, sepset); 6357c478bd9Sstevel@tonic-gate if (*q == '\0') 6367c478bd9Sstevel@tonic-gate return (NULL); 6377c478bd9Sstevel@tonic-gate 6387c478bd9Sstevel@tonic-gate /* 6397c478bd9Sstevel@tonic-gate * Mark the end of the token and set `savept' for the next iteration. 6407c478bd9Sstevel@tonic-gate */ 6417c478bd9Sstevel@tonic-gate if ((r = strpbrk(q, sepset)) == NULL) 6427c478bd9Sstevel@tonic-gate savept = NULL; 6437c478bd9Sstevel@tonic-gate else { 6447c478bd9Sstevel@tonic-gate *r = '\0'; 6457c478bd9Sstevel@tonic-gate savept = ++r; 6467c478bd9Sstevel@tonic-gate } 6477c478bd9Sstevel@tonic-gate 6487c478bd9Sstevel@tonic-gate return (q); 6497c478bd9Sstevel@tonic-gate } 6507c478bd9Sstevel@tonic-gate 6517c478bd9Sstevel@tonic-gate /* 6527c478bd9Sstevel@tonic-gate * The strlen() routine isn't shared with the kernel because it has its own 6537c478bd9Sstevel@tonic-gate * hand-tuned assembly version. 6547c478bd9Sstevel@tonic-gate */ 6557c478bd9Sstevel@tonic-gate size_t 6567c478bd9Sstevel@tonic-gate strlen(const char *s) 6577c478bd9Sstevel@tonic-gate { 6587c478bd9Sstevel@tonic-gate size_t n = 0; 6597c478bd9Sstevel@tonic-gate 6607c478bd9Sstevel@tonic-gate while (*s++) 6617c478bd9Sstevel@tonic-gate n++; 6627c478bd9Sstevel@tonic-gate return (n); 6637c478bd9Sstevel@tonic-gate } 6647c478bd9Sstevel@tonic-gate 6657c478bd9Sstevel@tonic-gate #endif /* _BOOT || _KMDB */ 6667c478bd9Sstevel@tonic-gate 6677c478bd9Sstevel@tonic-gate #ifdef _KERNEL 6687c478bd9Sstevel@tonic-gate /* 6697c478bd9Sstevel@tonic-gate * Check for a valid C identifier: 6707c478bd9Sstevel@tonic-gate * a letter or underscore, followed by 6717c478bd9Sstevel@tonic-gate * zero or more letters, digits and underscores. 6727c478bd9Sstevel@tonic-gate */ 6737c478bd9Sstevel@tonic-gate 6747c478bd9Sstevel@tonic-gate #define IS_DIGIT(c) ((c) >= '0' && (c) <= '9') 6757c478bd9Sstevel@tonic-gate 6767c478bd9Sstevel@tonic-gate #define IS_ALPHA(c) \ 6777c478bd9Sstevel@tonic-gate (((c) >= 'a' && (c) <= 'z') || ((c) >= 'A' && (c) <= 'Z')) 6787c478bd9Sstevel@tonic-gate 6797c478bd9Sstevel@tonic-gate int 6807c478bd9Sstevel@tonic-gate strident_valid(const char *id) 6817c478bd9Sstevel@tonic-gate { 6827c478bd9Sstevel@tonic-gate int c = *id++; 6837c478bd9Sstevel@tonic-gate 6847c478bd9Sstevel@tonic-gate if (!IS_ALPHA(c) && c != '_') 6857c478bd9Sstevel@tonic-gate return (0); 6867c478bd9Sstevel@tonic-gate while ((c = *id++) != 0) { 6877c478bd9Sstevel@tonic-gate if (!IS_ALPHA(c) && !IS_DIGIT(c) && c != '_') 6887c478bd9Sstevel@tonic-gate return (0); 6897c478bd9Sstevel@tonic-gate } 6907c478bd9Sstevel@tonic-gate return (1); 6917c478bd9Sstevel@tonic-gate } 6927c478bd9Sstevel@tonic-gate 6937c478bd9Sstevel@tonic-gate /* 6947c478bd9Sstevel@tonic-gate * Convert a string into a valid C identifier by replacing invalid 6957c478bd9Sstevel@tonic-gate * characters with '_'. Also makes sure the string is nul-terminated 6967c478bd9Sstevel@tonic-gate * and takes up at most n bytes. 6977c478bd9Sstevel@tonic-gate */ 6987c478bd9Sstevel@tonic-gate void 6997c478bd9Sstevel@tonic-gate strident_canon(char *s, size_t n) 7007c478bd9Sstevel@tonic-gate { 7017c478bd9Sstevel@tonic-gate char c; 7027c478bd9Sstevel@tonic-gate char *end = s + n - 1; 7037c478bd9Sstevel@tonic-gate 7047c478bd9Sstevel@tonic-gate ASSERT(n > 0); 7057c478bd9Sstevel@tonic-gate 7067c478bd9Sstevel@tonic-gate if ((c = *s) == 0) 7077c478bd9Sstevel@tonic-gate return; 7087c478bd9Sstevel@tonic-gate 7097c478bd9Sstevel@tonic-gate if (!IS_ALPHA(c) && c != '_') 7107c478bd9Sstevel@tonic-gate *s = '_'; 7117c478bd9Sstevel@tonic-gate 7127c478bd9Sstevel@tonic-gate while (s < end && ((c = *(++s)) != 0)) { 7137c478bd9Sstevel@tonic-gate if (!IS_ALPHA(c) && !IS_DIGIT(c) && c != '_') 7147c478bd9Sstevel@tonic-gate *s = '_'; 7157c478bd9Sstevel@tonic-gate } 7167c478bd9Sstevel@tonic-gate *s = 0; 7177c478bd9Sstevel@tonic-gate } 7187c478bd9Sstevel@tonic-gate 7197c478bd9Sstevel@tonic-gate #endif /* _KERNEL */ 720