utprint.c revision 1.1.1.17
1 /****************************************************************************** 2 * 3 * Module Name: utprint - Formatted printing routines 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2023, Intel Corp. 12 * All rights reserved. 13 * 14 * 2. License 15 * 16 * 2.1. This is your license from Intel Corp. under its intellectual property 17 * rights. You may have additional license terms from the party that provided 18 * you this software, covering your right to use that party's intellectual 19 * property rights. 20 * 21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 22 * copy of the source code appearing in this file ("Covered Code") an 23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 24 * base code distributed originally by Intel ("Original Intel Code") to copy, 25 * make derivatives, distribute, use and display any portion of the Covered 26 * Code in any form, with the right to sublicense such rights; and 27 * 28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 29 * license (with the right to sublicense), under only those claims of Intel 30 * patents that are infringed by the Original Intel Code, to make, use, sell, 31 * offer to sell, and import the Covered Code and derivative works thereof 32 * solely to the minimum extent necessary to exercise the above copyright 33 * license, and in no event shall the patent license extend to any additions 34 * to or modifications of the Original Intel Code. No other license or right 35 * is granted directly or by implication, estoppel or otherwise; 36 * 37 * The above copyright and patent license is granted only if the following 38 * conditions are met: 39 * 40 * 3. Conditions 41 * 42 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 43 * Redistribution of source code of any substantial portion of the Covered 44 * Code or modification with rights to further distribute source must include 45 * the above Copyright Notice, the above License, this list of Conditions, 46 * and the following Disclaimer and Export Compliance provision. In addition, 47 * Licensee must cause all Covered Code to which Licensee contributes to 48 * contain a file documenting the changes Licensee made to create that Covered 49 * Code and the date of any change. Licensee must include in that file the 50 * documentation of any changes made by any predecessor Licensee. Licensee 51 * must include a prominent statement that the modification is derived, 52 * directly or indirectly, from Original Intel Code. 53 * 54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 55 * Redistribution of source code of any substantial portion of the Covered 56 * Code or modification without rights to further distribute source must 57 * include the following Disclaimer and Export Compliance provision in the 58 * documentation and/or other materials provided with distribution. In 59 * addition, Licensee may not authorize further sublicense of source of any 60 * portion of the Covered Code, and must include terms to the effect that the 61 * license from Licensee to its licensee is limited to the intellectual 62 * property embodied in the software Licensee provides to its licensee, and 63 * not to intellectual property embodied in modifications its licensee may 64 * make. 65 * 66 * 3.3. Redistribution of Executable. Redistribution in executable form of any 67 * substantial portion of the Covered Code or modification must reproduce the 68 * above Copyright Notice, and the following Disclaimer and Export Compliance 69 * provision in the documentation and/or other materials provided with the 70 * distribution. 71 * 72 * 3.4. Intel retains all right, title, and interest in and to the Original 73 * Intel Code. 74 * 75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 76 * Intel shall be used in advertising or otherwise to promote the sale, use or 77 * other dealings in products derived from or relating to the Covered Code 78 * without prior written authorization from Intel. 79 * 80 * 4. Disclaimer and Export Compliance 81 * 82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 88 * PARTICULAR PURPOSE. 89 * 90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 97 * LIMITED REMEDY. 98 * 99 * 4.3. Licensee shall not export, either directly or indirectly, any of this 100 * software or system incorporating such software without first obtaining any 101 * required license or other approval from the U. S. Department of Commerce or 102 * any other agency or department of the United States Government. In the 103 * event Licensee exports any such software from the United States or 104 * re-exports any such software from a foreign destination, Licensee shall 105 * ensure that the distribution and export/re-export of the software is in 106 * compliance with all laws, regulations, orders, or other restrictions of the 107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 108 * any of its subsidiaries will export/re-export any technical data, process, 109 * software, or service, directly or indirectly, to any country for which the 110 * United States government or any agency thereof requires an export license, 111 * other governmental approval, or letter of assurance, without first obtaining 112 * such license, approval or letter. 113 * 114 ***************************************************************************** 115 * 116 * Alternatively, you may choose to be licensed under the terms of the 117 * following license: 118 * 119 * Redistribution and use in source and binary forms, with or without 120 * modification, are permitted provided that the following conditions 121 * are met: 122 * 1. Redistributions of source code must retain the above copyright 123 * notice, this list of conditions, and the following disclaimer, 124 * without modification. 125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 126 * substantially similar to the "NO WARRANTY" disclaimer below 127 * ("Disclaimer") and any redistribution must be conditioned upon 128 * including a substantially similar Disclaimer requirement for further 129 * binary redistribution. 130 * 3. Neither the names of the above-listed copyright holders nor the names 131 * of any contributors may be used to endorse or promote products derived 132 * from this software without specific prior written permission. 133 * 134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 145 * 146 * Alternatively, you may choose to be licensed under the terms of the 147 * GNU General Public License ("GPL") version 2 as published by the Free 148 * Software Foundation. 149 * 150 *****************************************************************************/ 151 152 #include "acpi.h" 153 #include "accommon.h" 154 155 #define _COMPONENT ACPI_UTILITIES 156 ACPI_MODULE_NAME ("utprint") 157 158 159 #define ACPI_FORMAT_SIGN 0x01 160 #define ACPI_FORMAT_SIGN_PLUS 0x02 161 #define ACPI_FORMAT_SIGN_PLUS_SPACE 0x04 162 #define ACPI_FORMAT_ZERO 0x08 163 #define ACPI_FORMAT_LEFT 0x10 164 #define ACPI_FORMAT_UPPER 0x20 165 #define ACPI_FORMAT_PREFIX 0x40 166 167 168 /* Local prototypes */ 169 170 static ACPI_SIZE 171 AcpiUtBoundStringLength ( 172 const char *String, 173 ACPI_SIZE Count); 174 175 static char * 176 AcpiUtBoundStringOutput ( 177 char *String, 178 const char *End, 179 char c); 180 181 static char * 182 AcpiUtFormatNumber ( 183 char *String, 184 char *End, 185 UINT64 Number, 186 UINT8 Base, 187 INT32 Width, 188 INT32 Precision, 189 UINT8 Type); 190 191 static char * 192 AcpiUtPutNumber ( 193 char *String, 194 UINT64 Number, 195 UINT8 Base, 196 BOOLEAN Upper); 197 198 199 /******************************************************************************* 200 * 201 * FUNCTION: AcpiUtBoundStringLength 202 * 203 * PARAMETERS: String - String with boundary 204 * Count - Boundary of the string 205 * 206 * RETURN: Length of the string. Less than or equal to Count. 207 * 208 * DESCRIPTION: Calculate the length of a string with boundary. 209 * 210 ******************************************************************************/ 211 212 static ACPI_SIZE 213 AcpiUtBoundStringLength ( 214 const char *String, 215 ACPI_SIZE Count) 216 { 217 UINT32 Length = 0; 218 219 220 while (*String && Count) 221 { 222 Length++; 223 String++; 224 Count--; 225 } 226 227 return (Length); 228 } 229 230 231 /******************************************************************************* 232 * 233 * FUNCTION: AcpiUtBoundStringOutput 234 * 235 * PARAMETERS: String - String with boundary 236 * End - Boundary of the string 237 * c - Character to be output to the string 238 * 239 * RETURN: Updated position for next valid character 240 * 241 * DESCRIPTION: Output a character into a string with boundary check. 242 * 243 ******************************************************************************/ 244 245 static char * 246 AcpiUtBoundStringOutput ( 247 char *String, 248 const char *End, 249 char c) 250 { 251 252 if (String < End) 253 { 254 *String = c; 255 } 256 257 ++String; 258 return (String); 259 } 260 261 262 /******************************************************************************* 263 * 264 * FUNCTION: AcpiUtPutNumber 265 * 266 * PARAMETERS: String - Buffer to hold reverse-ordered string 267 * Number - Integer to be converted 268 * Base - Base of the integer 269 * Upper - Whether or not using upper cased digits 270 * 271 * RETURN: Updated position for next valid character 272 * 273 * DESCRIPTION: Convert an integer into a string, note that, the string holds a 274 * reversed ordered number without the trailing zero. 275 * 276 ******************************************************************************/ 277 278 static char * 279 AcpiUtPutNumber ( 280 char *String, 281 UINT64 Number, 282 UINT8 Base, 283 BOOLEAN Upper) 284 { 285 const char *Digits; 286 UINT64 DigitIndex; 287 char *Pos; 288 289 290 Pos = String; 291 Digits = Upper ? AcpiGbl_UpperHexDigits : AcpiGbl_LowerHexDigits; 292 293 if (Number == 0) 294 { 295 *(Pos++) = '0'; 296 } 297 else 298 { 299 while (Number) 300 { 301 (void) AcpiUtDivide (Number, Base, &Number, &DigitIndex); 302 *(Pos++) = Digits[DigitIndex]; 303 } 304 } 305 306 /* *(Pos++) = '0'; */ 307 return (Pos); 308 } 309 310 311 /******************************************************************************* 312 * 313 * FUNCTION: AcpiUtScanNumber 314 * 315 * PARAMETERS: String - String buffer 316 * NumberPtr - Where the number is returned 317 * 318 * RETURN: Updated position for next valid character 319 * 320 * DESCRIPTION: Scan a string for a decimal integer. 321 * 322 ******************************************************************************/ 323 324 const char * 325 AcpiUtScanNumber ( 326 const char *String, 327 UINT64 *NumberPtr) 328 { 329 UINT64 Number = 0; 330 331 332 while (isdigit ((int) *String)) 333 { 334 AcpiUtShortMultiply (Number, 10, &Number); 335 Number += *(String++) - '0'; 336 } 337 338 *NumberPtr = Number; 339 return (String); 340 } 341 342 343 /******************************************************************************* 344 * 345 * FUNCTION: AcpiUtPrintNumber 346 * 347 * PARAMETERS: String - String buffer 348 * Number - The number to be converted 349 * 350 * RETURN: Updated position for next valid character 351 * 352 * DESCRIPTION: Print a decimal integer into a string. 353 * 354 ******************************************************************************/ 355 356 const char * 357 AcpiUtPrintNumber ( 358 char *String, 359 UINT64 Number) 360 { 361 char AsciiString[20]; 362 const char *Pos1; 363 char *Pos2; 364 365 366 Pos1 = AcpiUtPutNumber (AsciiString, Number, 10, FALSE); 367 Pos2 = String; 368 369 while (Pos1 != AsciiString) 370 { 371 *(Pos2++) = *(--Pos1); 372 } 373 374 *Pos2 = 0; 375 return (String); 376 } 377 378 379 /******************************************************************************* 380 * 381 * FUNCTION: AcpiUtFormatNumber 382 * 383 * PARAMETERS: String - String buffer with boundary 384 * End - Boundary of the string 385 * Number - The number to be converted 386 * Base - Base of the integer 387 * Width - Field width 388 * Precision - Precision of the integer 389 * Type - Special printing flags 390 * 391 * RETURN: Updated position for next valid character 392 * 393 * DESCRIPTION: Print an integer into a string with any base and any precision. 394 * 395 ******************************************************************************/ 396 397 static char * 398 AcpiUtFormatNumber ( 399 char *String, 400 char *End, 401 UINT64 Number, 402 UINT8 Base, 403 INT32 Width, 404 INT32 Precision, 405 UINT8 Type) 406 { 407 char *Pos; 408 char Sign; 409 char Zero; 410 BOOLEAN NeedPrefix; 411 BOOLEAN Upper; 412 INT32 i; 413 char ReversedString[66]; 414 415 416 /* Parameter validation */ 417 418 if (Base < 2 || Base > 16) 419 { 420 return (NULL); 421 } 422 423 if (Type & ACPI_FORMAT_LEFT) 424 { 425 Type &= ~ACPI_FORMAT_ZERO; 426 } 427 428 NeedPrefix = ((Type & ACPI_FORMAT_PREFIX) && Base != 10) ? TRUE : FALSE; 429 Upper = (Type & ACPI_FORMAT_UPPER) ? TRUE : FALSE; 430 Zero = (Type & ACPI_FORMAT_ZERO) ? '0' : ' '; 431 432 /* Calculate size according to sign and prefix */ 433 434 Sign = '\0'; 435 if (Type & ACPI_FORMAT_SIGN) 436 { 437 if ((INT64) Number < 0) 438 { 439 Sign = '-'; 440 Number = - (INT64) Number; 441 Width--; 442 } 443 else if (Type & ACPI_FORMAT_SIGN_PLUS) 444 { 445 Sign = '+'; 446 Width--; 447 } 448 else if (Type & ACPI_FORMAT_SIGN_PLUS_SPACE) 449 { 450 Sign = ' '; 451 Width--; 452 } 453 } 454 if (NeedPrefix) 455 { 456 Width--; 457 if (Base == 16) 458 { 459 Width--; 460 } 461 } 462 463 /* Generate full string in reverse order */ 464 465 Pos = AcpiUtPutNumber (ReversedString, Number, Base, Upper); 466 i = (INT32) ACPI_PTR_DIFF (Pos, ReversedString); 467 468 /* Printing 100 using %2d gives "100", not "00" */ 469 470 if (i > Precision) 471 { 472 Precision = i; 473 } 474 475 Width -= Precision; 476 477 /* Output the string */ 478 479 if (!(Type & (ACPI_FORMAT_ZERO | ACPI_FORMAT_LEFT))) 480 { 481 while (--Width >= 0) 482 { 483 String = AcpiUtBoundStringOutput (String, End, ' '); 484 } 485 } 486 if (Sign) 487 { 488 String = AcpiUtBoundStringOutput (String, End, Sign); 489 } 490 if (NeedPrefix) 491 { 492 String = AcpiUtBoundStringOutput (String, End, '0'); 493 if (Base == 16) 494 { 495 String = AcpiUtBoundStringOutput ( 496 String, End, Upper ? 'X' : 'x'); 497 } 498 } 499 if (!(Type & ACPI_FORMAT_LEFT)) 500 { 501 while (--Width >= 0) 502 { 503 String = AcpiUtBoundStringOutput (String, End, Zero); 504 } 505 } 506 507 while (i <= --Precision) 508 { 509 String = AcpiUtBoundStringOutput (String, End, '0'); 510 } 511 while (--i >= 0) 512 { 513 String = AcpiUtBoundStringOutput (String, End, 514 ReversedString[i]); 515 } 516 while (--Width >= 0) 517 { 518 String = AcpiUtBoundStringOutput (String, End, ' '); 519 } 520 521 return (String); 522 } 523 524 525 /******************************************************************************* 526 * 527 * FUNCTION: vsnprintf 528 * 529 * PARAMETERS: String - String with boundary 530 * Size - Boundary of the string 531 * Format - Standard printf format 532 * Args - Argument list 533 * 534 * RETURN: Number of bytes actually written. 535 * 536 * DESCRIPTION: Formatted output to a string using argument list pointer. 537 * 538 ******************************************************************************/ 539 540 int 541 vsnprintf ( 542 char *String, 543 ACPI_SIZE Size, 544 const char *Format, 545 va_list Args) 546 { 547 UINT8 Base; 548 UINT8 Type; 549 INT32 Width; 550 INT32 Precision; 551 char Qualifier; 552 UINT64 Number; 553 char *Pos; 554 char *End; 555 char c; 556 const char *s; 557 const void *p; 558 INT32 Length; 559 int i; 560 561 562 Pos = String; 563 564 565 if (Size != ACPI_UINT32_MAX) { 566 End = String + Size; 567 } else { 568 End = ACPI_CAST_PTR(char, ACPI_UINT32_MAX); 569 } 570 571 for (; *Format; ++Format) 572 { 573 if (*Format != '%') 574 { 575 Pos = AcpiUtBoundStringOutput (Pos, End, *Format); 576 continue; 577 } 578 579 Type = 0; 580 Base = 10; 581 582 /* Process sign */ 583 584 do 585 { 586 ++Format; 587 if (*Format == '#') 588 { 589 Type |= ACPI_FORMAT_PREFIX; 590 } 591 else if (*Format == '0') 592 { 593 Type |= ACPI_FORMAT_ZERO; 594 } 595 else if (*Format == '+') 596 { 597 Type |= ACPI_FORMAT_SIGN_PLUS; 598 } 599 else if (*Format == ' ') 600 { 601 Type |= ACPI_FORMAT_SIGN_PLUS_SPACE; 602 } 603 else if (*Format == '-') 604 { 605 Type |= ACPI_FORMAT_LEFT; 606 } 607 else 608 { 609 break; 610 } 611 612 } while (1); 613 614 /* Process width */ 615 616 Width = -1; 617 if (isdigit ((int) *Format)) 618 { 619 Format = AcpiUtScanNumber (Format, &Number); 620 Width = (INT32) Number; 621 } 622 else if (*Format == '*') 623 { 624 ++Format; 625 Width = va_arg (Args, int); 626 if (Width < 0) 627 { 628 Width = -Width; 629 Type |= ACPI_FORMAT_LEFT; 630 } 631 } 632 633 /* Process precision */ 634 635 Precision = -1; 636 if (*Format == '.') 637 { 638 ++Format; 639 if (isdigit ((int) *Format)) 640 { 641 Format = AcpiUtScanNumber (Format, &Number); 642 Precision = (INT32) Number; 643 } 644 else if (*Format == '*') 645 { 646 ++Format; 647 Precision = va_arg (Args, int); 648 } 649 650 if (Precision < 0) 651 { 652 Precision = 0; 653 } 654 } 655 656 /* Process qualifier */ 657 658 Qualifier = -1; 659 if (*Format == 'h' || *Format == 'l' || *Format == 'L') 660 { 661 Qualifier = *Format; 662 ++Format; 663 664 if (Qualifier == 'l' && *Format == 'l') 665 { 666 Qualifier = 'L'; 667 ++Format; 668 } 669 } 670 671 switch (*Format) 672 { 673 case '%': 674 675 Pos = AcpiUtBoundStringOutput (Pos, End, '%'); 676 continue; 677 678 case 'c': 679 680 if (!(Type & ACPI_FORMAT_LEFT)) 681 { 682 while (--Width > 0) 683 { 684 Pos = AcpiUtBoundStringOutput (Pos, End, ' '); 685 } 686 } 687 688 c = (char) va_arg (Args, int); 689 Pos = AcpiUtBoundStringOutput (Pos, End, c); 690 691 while (--Width > 0) 692 { 693 Pos = AcpiUtBoundStringOutput (Pos, End, ' '); 694 } 695 continue; 696 697 case 's': 698 699 s = va_arg (Args, char *); 700 if (!s) 701 { 702 s = "<NULL>"; 703 } 704 Length = (INT32) AcpiUtBoundStringLength (s, Precision); 705 if (!(Type & ACPI_FORMAT_LEFT)) 706 { 707 while (Length < Width--) 708 { 709 Pos = AcpiUtBoundStringOutput (Pos, End, ' '); 710 } 711 } 712 713 for (i = 0; i < Length; ++i) 714 { 715 Pos = AcpiUtBoundStringOutput (Pos, End, *s); 716 ++s; 717 } 718 719 while (Length < Width--) 720 { 721 Pos = AcpiUtBoundStringOutput (Pos, End, ' '); 722 } 723 continue; 724 725 case 'o': 726 727 Base = 8; 728 break; 729 730 case 'X': 731 732 Type |= ACPI_FORMAT_UPPER; 733 ACPI_FALLTHROUGH; 734 735 case 'x': 736 737 Base = 16; 738 break; 739 740 case 'd': 741 case 'i': 742 743 Type |= ACPI_FORMAT_SIGN; 744 745 case 'u': 746 747 break; 748 749 case 'p': 750 751 if (Width == -1) 752 { 753 Width = 2 * sizeof (void *); 754 Type |= ACPI_FORMAT_ZERO; 755 } 756 757 p = va_arg (Args, void *); 758 Pos = AcpiUtFormatNumber ( 759 Pos, End, ACPI_TO_INTEGER (p), 16, Width, Precision, Type); 760 continue; 761 762 default: 763 764 Pos = AcpiUtBoundStringOutput (Pos, End, '%'); 765 if (*Format) 766 { 767 Pos = AcpiUtBoundStringOutput (Pos, End, *Format); 768 } 769 else 770 { 771 --Format; 772 } 773 continue; 774 } 775 776 if (Qualifier == 'L') 777 { 778 Number = va_arg (Args, UINT64); 779 if (Type & ACPI_FORMAT_SIGN) 780 { 781 Number = (INT64) Number; 782 } 783 } 784 else if (Qualifier == 'l') 785 { 786 Number = va_arg (Args, unsigned long); 787 if (Type & ACPI_FORMAT_SIGN) 788 { 789 Number = (INT32) Number; 790 } 791 } 792 else if (Qualifier == 'h') 793 { 794 Number = (UINT16) va_arg (Args, int); 795 if (Type & ACPI_FORMAT_SIGN) 796 { 797 Number = (INT16) Number; 798 } 799 } 800 else 801 { 802 Number = va_arg (Args, unsigned int); 803 if (Type & ACPI_FORMAT_SIGN) 804 { 805 Number = (signed int) Number; 806 } 807 } 808 809 Pos = AcpiUtFormatNumber (Pos, End, Number, Base, 810 Width, Precision, Type); 811 } 812 813 if (Size > 0) 814 { 815 if (Pos < End) 816 { 817 *Pos = '\0'; 818 } 819 else 820 { 821 End[-1] = '\0'; 822 } 823 } 824 825 return ((int) ACPI_PTR_DIFF (Pos, String)); 826 } 827 828 829 /******************************************************************************* 830 * 831 * FUNCTION: snprintf 832 * 833 * PARAMETERS: String - String with boundary 834 * Size - Boundary of the string 835 * Format, ... - Standard printf format 836 * 837 * RETURN: Number of bytes actually written. 838 * 839 * DESCRIPTION: Formatted output to a string. 840 * 841 ******************************************************************************/ 842 843 int 844 snprintf ( 845 char *String, 846 ACPI_SIZE Size, 847 const char *Format, 848 ...) 849 { 850 va_list Args; 851 int Length; 852 853 854 va_start (Args, Format); 855 Length = vsnprintf (String, Size, Format, Args); 856 va_end (Args); 857 858 return (Length); 859 } 860 861 862 /******************************************************************************* 863 * 864 * FUNCTION: sprintf 865 * 866 * PARAMETERS: String - String with boundary 867 * Format, ... - Standard printf format 868 * 869 * RETURN: Number of bytes actually written. 870 * 871 * DESCRIPTION: Formatted output to a string. 872 * 873 ******************************************************************************/ 874 875 int 876 sprintf ( 877 char *String, 878 const char *Format, 879 ...) 880 { 881 va_list Args; 882 int Length; 883 884 885 va_start (Args, Format); 886 Length = vsnprintf (String, ACPI_UINT32_MAX, Format, Args); 887 va_end (Args); 888 889 return (Length); 890 } 891 892 893 #ifdef ACPI_APPLICATION 894 /******************************************************************************* 895 * 896 * FUNCTION: vprintf 897 * 898 * PARAMETERS: Format - Standard printf format 899 * Args - Argument list 900 * 901 * RETURN: Number of bytes actually written. 902 * 903 * DESCRIPTION: Formatted output to stdout using argument list pointer. 904 * 905 ******************************************************************************/ 906 907 int 908 vprintf ( 909 const char *Format, 910 va_list Args) 911 { 912 ACPI_CPU_FLAGS Flags; 913 int Length; 914 915 916 Flags = AcpiOsAcquireLock (AcpiGbl_PrintLock); 917 Length = vsnprintf (AcpiGbl_PrintBuffer, 918 sizeof (AcpiGbl_PrintBuffer), Format, Args); 919 920 (void) fwrite (AcpiGbl_PrintBuffer, Length, 1, ACPI_FILE_OUT); 921 AcpiOsReleaseLock (AcpiGbl_PrintLock, Flags); 922 923 return (Length); 924 } 925 926 927 /******************************************************************************* 928 * 929 * FUNCTION: printf 930 * 931 * PARAMETERS: Format, ... - Standard printf format 932 * 933 * RETURN: Number of bytes actually written. 934 * 935 * DESCRIPTION: Formatted output to stdout. 936 * 937 ******************************************************************************/ 938 939 int 940 printf ( 941 const char *Format, 942 ...) 943 { 944 va_list Args; 945 int Length; 946 947 948 va_start (Args, Format); 949 Length = vprintf (Format, Args); 950 va_end (Args); 951 952 return (Length); 953 } 954 955 956 /******************************************************************************* 957 * 958 * FUNCTION: vfprintf 959 * 960 * PARAMETERS: File - File descriptor 961 * Format - Standard printf format 962 * Args - Argument list 963 * 964 * RETURN: Number of bytes actually written. 965 * 966 * DESCRIPTION: Formatted output to a file using argument list pointer. 967 * 968 ******************************************************************************/ 969 970 int 971 vfprintf ( 972 FILE *File, 973 const char *Format, 974 va_list Args) 975 { 976 ACPI_CPU_FLAGS Flags; 977 int Length; 978 979 980 Flags = AcpiOsAcquireLock (AcpiGbl_PrintLock); 981 Length = vsnprintf (AcpiGbl_PrintBuffer, 982 sizeof (AcpiGbl_PrintBuffer), Format, Args); 983 984 (void) fwrite (AcpiGbl_PrintBuffer, Length, 1, File); 985 AcpiOsReleaseLock (AcpiGbl_PrintLock, Flags); 986 987 return (Length); 988 } 989 990 991 /******************************************************************************* 992 * 993 * FUNCTION: fprintf 994 * 995 * PARAMETERS: File - File descriptor 996 * Format, ... - Standard printf format 997 * 998 * RETURN: Number of bytes actually written. 999 * 1000 * DESCRIPTION: Formatted output to a file. 1001 * 1002 ******************************************************************************/ 1003 1004 int 1005 fprintf ( 1006 FILE *File, 1007 const char *Format, 1008 ...) 1009 { 1010 va_list Args; 1011 int Length; 1012 1013 1014 va_start (Args, Format); 1015 Length = vfprintf (File, Format, Args); 1016 va_end (Args); 1017 1018 return (Length); 1019 } 1020 #endif 1021
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