2 * Copyright (C) 2004, 2005 Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (C) 1999-2001, 2003 Internet Software Consortium.
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
11 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
15 * PERFORMANCE OF THIS SOFTWARE.
18 /* $Id: print.c,v 1.2.4.7 2005/10/14 01:38:51 marka Exp $ */
23 #include <stdio.h> /* for sprintf */
26 #define LWRES__PRINT_SOURCE /* Used to get the lwres_print_* prototypes. */
28 #include <lwres/stdlib.h>
33 #define LWRES_PRINT_QUADFORMAT LWRES_PLATFORM_QUADFORMAT
36 lwres__print_sprintf(char *str, const char *format, ...) {
40 vsprintf(str, format, ap);
46 * Return length of string that would have been written if not truncated.
50 lwres__print_snprintf(char *str, size_t size, const char *format, ...) {
55 ret = vsnprintf(str, size, format, ap);
62 * Return length of string that would have been written if not truncated.
66 lwres__print_vsnprintf(char *str, size_t size, const char *format, va_list ap) {
76 unsigned long long tmpui;
78 unsigned long precision;
91 #ifdef HAVE_LONG_DOUBLE
97 INSIST(format != NULL);
99 while (*format != '\0') {
100 if (*format != '%') {
114 dot = space = plus = left = zero = alt = h = l = q = 0;
115 width = precision = 0;
117 length = pad = zeropad = 0;
120 if (*format == '#') {
123 } else if (*format == '-') {
127 } else if (*format == ' ') {
131 } else if (*format == '+') {
135 } else if (*format == '0') {
146 if (*format == '*') {
147 width = va_arg(ap, int);
149 } else if (isdigit((unsigned char)*format)) {
151 width = strtoul(format, &e, 10);
158 if (*format == '.') {
161 if (*format == '*') {
162 precision = va_arg(ap, int);
164 } else if (isdigit((unsigned char)*format)) {
166 precision = strtoul(format, &e, 10);
192 if (*format == 'l') {
211 p = va_arg(ap, short *);
216 p = va_arg(ap, long *);
221 p = va_arg(ap, int *);
229 tmpi = va_arg(ap, long long int);
231 tmpi = va_arg(ap, long int);
233 tmpi = va_arg(ap, int);
246 sprintf(buf, "%" LWRES_PRINT_QUADFORMAT "u",
252 unsigned long long int);
254 tmpui = va_arg(ap, long int);
256 tmpui = va_arg(ap, int);
258 alt ? "%#" LWRES_PRINT_QUADFORMAT "o"
259 : "%" LWRES_PRINT_QUADFORMAT "o",
265 unsigned long long int);
267 tmpui = va_arg(ap, unsigned long int);
269 tmpui = va_arg(ap, unsigned int);
270 sprintf(buf, "%" LWRES_PRINT_QUADFORMAT "u",
276 unsigned long long int);
278 tmpui = va_arg(ap, unsigned long int);
280 tmpui = va_arg(ap, unsigned int);
286 sprintf(buf, "%" LWRES_PRINT_QUADFORMAT "x",
292 unsigned long long int);
294 tmpui = va_arg(ap, unsigned long int);
296 tmpui = va_arg(ap, unsigned int);
302 sprintf(buf, "%" LWRES_PRINT_QUADFORMAT "X",
306 if (precision != 0U || width != 0U) {
307 length = strlen(buf);
308 if (length < precision)
309 zeropad = precision - length;
310 else if (length < width && zero)
311 zeropad = width - length;
313 pad = width - length -
314 zeropad - strlen(head);
319 count += strlen(head) + strlen(buf) + pad +
322 while (pad > 0 && size > 1U) {
329 while (*cp != '\0' && size > 1U) {
333 while (zeropad > 0 && size > 1U) {
339 while (*cp != '\0' && size > 1U) {
343 while (pad > 0 && size > 1U) {
354 cp = va_arg(ap, char *);
357 if (precision != 0U) {
359 * cp need not be NULL terminated.
366 while (n != 0U && *tp != '\0')
368 length = precision - n;
373 pad = width - length;
377 count += pad + length;
379 while (pad > 0 && size > 1U) {
385 while (precision > 0U && *cp != '\0' &&
392 while (*cp != '\0' && size > 1U) {
396 while (pad > 0 && size > 1U) {
411 while (width-- > 0U && size > 1U) {
415 if (!left && size > 1U) {
428 v = va_arg(ap, void *);
429 sprintf(buf, "%p", v);
430 length = strlen(buf);
431 if (precision > length)
432 zeropad = precision - length;
434 pad = width - length - zeropad;
438 count += length + pad + zeropad;
440 while (pad > 0 && size > 1U) {
446 if (zeropad > 0 && buf[0] == '0' &&
447 (buf[1] == 'x' || buf[1] == 'X')) {
456 while (zeropad > 0 && size > 1U) {
462 while (*cp != '\0' && size > 1U) {
466 while (pad > 0 && size > 1U) {
472 case 'D': /*deprecated*/
473 INSIST("use %ld instead of %D" == NULL);
474 case 'O': /*deprecated*/
475 INSIST("use %lo instead of %O" == NULL);
476 case 'U': /*deprecated*/
477 INSIST("use %lu instead of %U" == NULL);
480 #ifdef HAVE_LONG_DOUBLE
483 INSIST("long doubles are not supported" == NULL);
494 * IEEE floating point.
495 * MIN 2.2250738585072014E-308
496 * MAX 1.7976931348623157E+308
497 * VAX floating point has a smaller range than IEEE.
499 * precisions > 324 don't make much sense.
500 * if we cap the precision at 512 we will not
503 if (precision > 512U)
505 sprintf(fmt, "%%%s%s.%lu%s%c", alt ? "#" : "",
506 plus ? "+" : space ? " " : "",
507 precision, l ? "L" : "", *format);
514 #ifdef HAVE_LONG_DOUBLE
516 ldbl = va_arg(ap, long double);
517 sprintf(buf, fmt, ldbl);
521 dbl = va_arg(ap, double);
522 sprintf(buf, fmt, dbl);
524 length = strlen(buf);
526 pad = width - length;
530 count += length + pad;
532 while (pad > 0 && size > 1U) {
538 while (*cp != ' ' && size > 1U) {
542 while (pad > 0 && size > 1U) {