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-rw-r--r--lib/vsprintf.c972
1 files changed, 541 insertions, 431 deletions
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 3543bbe8b1bc..25f01578c856 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -396,7 +396,38 @@ static noinline char* put_dec(char *buf, unsigned long long num)
396#define SMALL 32 /* Must be 32 == 0x20 */ 396#define SMALL 32 /* Must be 32 == 0x20 */
397#define SPECIAL 64 /* 0x */ 397#define SPECIAL 64 /* 0x */
398 398
399static char *number(char *buf, char *end, unsigned long long num, int base, int size, int precision, int type) 399enum format_type {
400 FORMAT_TYPE_NONE, /* Just a string part */
401 FORMAT_TYPE_WITDH,
402 FORMAT_TYPE_PRECISION,
403 FORMAT_TYPE_CHAR,
404 FORMAT_TYPE_STR,
405 FORMAT_TYPE_PTR,
406 FORMAT_TYPE_PERCENT_CHAR,
407 FORMAT_TYPE_INVALID,
408 FORMAT_TYPE_LONG_LONG,
409 FORMAT_TYPE_ULONG,
410 FORMAT_TYPE_LONG,
411 FORMAT_TYPE_USHORT,
412 FORMAT_TYPE_SHORT,
413 FORMAT_TYPE_UINT,
414 FORMAT_TYPE_INT,
415 FORMAT_TYPE_NRCHARS,
416 FORMAT_TYPE_SIZE_T,
417 FORMAT_TYPE_PTRDIFF
418};
419
420struct printf_spec {
421 enum format_type type;
422 int flags; /* flags to number() */
423 int field_width; /* width of output field */
424 int base;
425 int precision; /* # of digits/chars */
426 int qualifier;
427};
428
429static char *number(char *buf, char *end, unsigned long long num,
430 struct printf_spec spec)
400{ 431{
401 /* we are called with base 8, 10 or 16, only, thus don't need "G..." */ 432 /* we are called with base 8, 10 or 16, only, thus don't need "G..." */
402 static const char digits[16] = "0123456789ABCDEF"; /* "GHIJKLMNOPQRSTUVWXYZ"; */ 433 static const char digits[16] = "0123456789ABCDEF"; /* "GHIJKLMNOPQRSTUVWXYZ"; */
@@ -404,32 +435,32 @@ static char *number(char *buf, char *end, unsigned long long num, int base, int
404 char tmp[66]; 435 char tmp[66];
405 char sign; 436 char sign;
406 char locase; 437 char locase;
407 int need_pfx = ((type & SPECIAL) && base != 10); 438 int need_pfx = ((spec.flags & SPECIAL) && spec.base != 10);
408 int i; 439 int i;
409 440
410 /* locase = 0 or 0x20. ORing digits or letters with 'locase' 441 /* locase = 0 or 0x20. ORing digits or letters with 'locase'
411 * produces same digits or (maybe lowercased) letters */ 442 * produces same digits or (maybe lowercased) letters */
412 locase = (type & SMALL); 443 locase = (spec.flags & SMALL);
413 if (type & LEFT) 444 if (spec.flags & LEFT)
414 type &= ~ZEROPAD; 445 spec.flags &= ~ZEROPAD;
415 sign = 0; 446 sign = 0;
416 if (type & SIGN) { 447 if (spec.flags & SIGN) {
417 if ((signed long long) num < 0) { 448 if ((signed long long) num < 0) {
418 sign = '-'; 449 sign = '-';
419 num = - (signed long long) num; 450 num = - (signed long long) num;
420 size--; 451 spec.field_width--;
421 } else if (type & PLUS) { 452 } else if (spec.flags & PLUS) {
422 sign = '+'; 453 sign = '+';
423 size--; 454 spec.field_width--;
424 } else if (type & SPACE) { 455 } else if (spec.flags & SPACE) {
425 sign = ' '; 456 sign = ' ';
426 size--; 457 spec.field_width--;
427 } 458 }
428 } 459 }
429 if (need_pfx) { 460 if (need_pfx) {
430 size--; 461 spec.field_width--;
431 if (base == 16) 462 if (spec.base == 16)
432 size--; 463 spec.field_width--;
433 } 464 }
434 465
435 /* generate full string in tmp[], in reverse order */ 466 /* generate full string in tmp[], in reverse order */
@@ -441,10 +472,10 @@ static char *number(char *buf, char *end, unsigned long long num, int base, int
441 tmp[i++] = (digits[do_div(num,base)] | locase); 472 tmp[i++] = (digits[do_div(num,base)] | locase);
442 } while (num != 0); 473 } while (num != 0);
443 */ 474 */
444 else if (base != 10) { /* 8 or 16 */ 475 else if (spec.base != 10) { /* 8 or 16 */
445 int mask = base - 1; 476 int mask = spec.base - 1;
446 int shift = 3; 477 int shift = 3;
447 if (base == 16) shift = 4; 478 if (spec.base == 16) shift = 4;
448 do { 479 do {
449 tmp[i++] = (digits[((unsigned char)num) & mask] | locase); 480 tmp[i++] = (digits[((unsigned char)num) & mask] | locase);
450 num >>= shift; 481 num >>= shift;
@@ -454,12 +485,12 @@ static char *number(char *buf, char *end, unsigned long long num, int base, int
454 } 485 }
455 486
456 /* printing 100 using %2d gives "100", not "00" */ 487 /* printing 100 using %2d gives "100", not "00" */
457 if (i > precision) 488 if (i > spec.precision)
458 precision = i; 489 spec.precision = i;
459 /* leading space padding */ 490 /* leading space padding */
460 size -= precision; 491 spec.field_width -= spec.precision;
461 if (!(type & (ZEROPAD+LEFT))) { 492 if (!(spec.flags & (ZEROPAD+LEFT))) {
462 while(--size >= 0) { 493 while(--spec.field_width >= 0) {
463 if (buf < end) 494 if (buf < end)
464 *buf = ' '; 495 *buf = ' ';
465 ++buf; 496 ++buf;
@@ -476,23 +507,23 @@ static char *number(char *buf, char *end, unsigned long long num, int base, int
476 if (buf < end) 507 if (buf < end)
477 *buf = '0'; 508 *buf = '0';
478 ++buf; 509 ++buf;
479 if (base == 16) { 510 if (spec.base == 16) {
480 if (buf < end) 511 if (buf < end)
481 *buf = ('X' | locase); 512 *buf = ('X' | locase);
482 ++buf; 513 ++buf;
483 } 514 }
484 } 515 }
485 /* zero or space padding */ 516 /* zero or space padding */
486 if (!(type & LEFT)) { 517 if (!(spec.flags & LEFT)) {
487 char c = (type & ZEROPAD) ? '0' : ' '; 518 char c = (spec.flags & ZEROPAD) ? '0' : ' ';
488 while (--size >= 0) { 519 while (--spec.field_width >= 0) {
489 if (buf < end) 520 if (buf < end)
490 *buf = c; 521 *buf = c;
491 ++buf; 522 ++buf;
492 } 523 }
493 } 524 }
494 /* hmm even more zero padding? */ 525 /* hmm even more zero padding? */
495 while (i <= --precision) { 526 while (i <= --spec.precision) {
496 if (buf < end) 527 if (buf < end)
497 *buf = '0'; 528 *buf = '0';
498 ++buf; 529 ++buf;
@@ -504,7 +535,7 @@ static char *number(char *buf, char *end, unsigned long long num, int base, int
504 ++buf; 535 ++buf;
505 } 536 }
506 /* trailing space padding */ 537 /* trailing space padding */
507 while (--size >= 0) { 538 while (--spec.field_width >= 0) {
508 if (buf < end) 539 if (buf < end)
509 *buf = ' '; 540 *buf = ' ';
510 ++buf; 541 ++buf;
@@ -512,17 +543,17 @@ static char *number(char *buf, char *end, unsigned long long num, int base, int
512 return buf; 543 return buf;
513} 544}
514 545
515static char *string(char *buf, char *end, char *s, int field_width, int precision, int flags) 546static char *string(char *buf, char *end, char *s, struct printf_spec spec)
516{ 547{
517 int len, i; 548 int len, i;
518 549
519 if ((unsigned long)s < PAGE_SIZE) 550 if ((unsigned long)s < PAGE_SIZE)
520 s = "<NULL>"; 551 s = "<NULL>";
521 552
522 len = strnlen(s, precision); 553 len = strnlen(s, spec.precision);
523 554
524 if (!(flags & LEFT)) { 555 if (!(spec.flags & LEFT)) {
525 while (len < field_width--) { 556 while (len < spec.field_width--) {
526 if (buf < end) 557 if (buf < end)
527 *buf = ' '; 558 *buf = ' ';
528 ++buf; 559 ++buf;
@@ -533,7 +564,7 @@ static char *string(char *buf, char *end, char *s, int field_width, int precisio
533 *buf = *s; 564 *buf = *s;
534 ++buf; ++s; 565 ++buf; ++s;
535 } 566 }
536 while (len < field_width--) { 567 while (len < spec.field_width--) {
537 if (buf < end) 568 if (buf < end)
538 *buf = ' '; 569 *buf = ' ';
539 ++buf; 570 ++buf;
@@ -541,21 +572,24 @@ static char *string(char *buf, char *end, char *s, int field_width, int precisio
541 return buf; 572 return buf;
542} 573}
543 574
544static char *symbol_string(char *buf, char *end, void *ptr, int field_width, int precision, int flags) 575static char *symbol_string(char *buf, char *end, void *ptr,
576 struct printf_spec spec)
545{ 577{
546 unsigned long value = (unsigned long) ptr; 578 unsigned long value = (unsigned long) ptr;
547#ifdef CONFIG_KALLSYMS 579#ifdef CONFIG_KALLSYMS
548 char sym[KSYM_SYMBOL_LEN]; 580 char sym[KSYM_SYMBOL_LEN];
549 sprint_symbol(sym, value); 581 sprint_symbol(sym, value);
550 return string(buf, end, sym, field_width, precision, flags); 582 return string(buf, end, sym, spec);
551#else 583#else
552 field_width = 2*sizeof(void *); 584 spec.field_width = 2*sizeof(void *);
553 flags |= SPECIAL | SMALL | ZEROPAD; 585 spec.flags |= SPECIAL | SMALL | ZEROPAD;
554 return number(buf, end, value, 16, field_width, precision, flags); 586 spec.base = 16;
587 return number(buf, end, value, spec);
555#endif 588#endif
556} 589}
557 590
558static char *resource_string(char *buf, char *end, struct resource *res, int field_width, int precision, int flags) 591static char *resource_string(char *buf, char *end, struct resource *res,
592 struct printf_spec spec)
559{ 593{
560#ifndef IO_RSRC_PRINTK_SIZE 594#ifndef IO_RSRC_PRINTK_SIZE
561#define IO_RSRC_PRINTK_SIZE 4 595#define IO_RSRC_PRINTK_SIZE 4
@@ -564,7 +598,11 @@ static char *resource_string(char *buf, char *end, struct resource *res, int fie
564#ifndef MEM_RSRC_PRINTK_SIZE 598#ifndef MEM_RSRC_PRINTK_SIZE
565#define MEM_RSRC_PRINTK_SIZE 8 599#define MEM_RSRC_PRINTK_SIZE 8
566#endif 600#endif
567 601 struct printf_spec num_spec = {
602 .base = 16,
603 .precision = -1,
604 .flags = SPECIAL | SMALL | ZEROPAD,
605 };
568 /* room for the actual numbers, the two "0x", -, [, ] and the final zero */ 606 /* room for the actual numbers, the two "0x", -, [, ] and the final zero */
569 char sym[4*sizeof(resource_size_t) + 8]; 607 char sym[4*sizeof(resource_size_t) + 8];
570 char *p = sym, *pend = sym + sizeof(sym); 608 char *p = sym, *pend = sym + sizeof(sym);
@@ -576,17 +614,18 @@ static char *resource_string(char *buf, char *end, struct resource *res, int fie
576 size = MEM_RSRC_PRINTK_SIZE; 614 size = MEM_RSRC_PRINTK_SIZE;
577 615
578 *p++ = '['; 616 *p++ = '[';
579 p = number(p, pend, res->start, 16, size, -1, SPECIAL | SMALL | ZEROPAD); 617 num_spec.field_width = size;
618 p = number(p, pend, res->start, num_spec);
580 *p++ = '-'; 619 *p++ = '-';
581 p = number(p, pend, res->end, 16, size, -1, SPECIAL | SMALL | ZEROPAD); 620 p = number(p, pend, res->end, num_spec);
582 *p++ = ']'; 621 *p++ = ']';
583 *p = 0; 622 *p = 0;
584 623
585 return string(buf, end, sym, field_width, precision, flags); 624 return string(buf, end, sym, spec);
586} 625}
587 626
588static char *mac_address_string(char *buf, char *end, u8 *addr, int field_width, 627static char *mac_address_string(char *buf, char *end, u8 *addr,
589 int precision, int flags) 628 struct printf_spec spec)
590{ 629{
591 char mac_addr[6 * 3]; /* (6 * 2 hex digits), 5 colons and trailing zero */ 630 char mac_addr[6 * 3]; /* (6 * 2 hex digits), 5 colons and trailing zero */
592 char *p = mac_addr; 631 char *p = mac_addr;
@@ -594,16 +633,17 @@ static char *mac_address_string(char *buf, char *end, u8 *addr, int field_width,
594 633
595 for (i = 0; i < 6; i++) { 634 for (i = 0; i < 6; i++) {
596 p = pack_hex_byte(p, addr[i]); 635 p = pack_hex_byte(p, addr[i]);
597 if (!(flags & SPECIAL) && i != 5) 636 if (!(spec.flags & SPECIAL) && i != 5)
598 *p++ = ':'; 637 *p++ = ':';
599 } 638 }
600 *p = '\0'; 639 *p = '\0';
640 spec.flags &= ~SPECIAL;
601 641
602 return string(buf, end, mac_addr, field_width, precision, flags & ~SPECIAL); 642 return string(buf, end, mac_addr, spec);
603} 643}
604 644
605static char *ip6_addr_string(char *buf, char *end, u8 *addr, int field_width, 645static char *ip6_addr_string(char *buf, char *end, u8 *addr,
606 int precision, int flags) 646 struct printf_spec spec)
607{ 647{
608 char ip6_addr[8 * 5]; /* (8 * 4 hex digits), 7 colons and trailing zero */ 648 char ip6_addr[8 * 5]; /* (8 * 4 hex digits), 7 colons and trailing zero */
609 char *p = ip6_addr; 649 char *p = ip6_addr;
@@ -612,16 +652,17 @@ static char *ip6_addr_string(char *buf, char *end, u8 *addr, int field_width,
612 for (i = 0; i < 8; i++) { 652 for (i = 0; i < 8; i++) {
613 p = pack_hex_byte(p, addr[2 * i]); 653 p = pack_hex_byte(p, addr[2 * i]);
614 p = pack_hex_byte(p, addr[2 * i + 1]); 654 p = pack_hex_byte(p, addr[2 * i + 1]);
615 if (!(flags & SPECIAL) && i != 7) 655 if (!(spec.flags & SPECIAL) && i != 7)
616 *p++ = ':'; 656 *p++ = ':';
617 } 657 }
618 *p = '\0'; 658 *p = '\0';
659 spec.flags &= ~SPECIAL;
619 660
620 return string(buf, end, ip6_addr, field_width, precision, flags & ~SPECIAL); 661 return string(buf, end, ip6_addr, spec);
621} 662}
622 663
623static char *ip4_addr_string(char *buf, char *end, u8 *addr, int field_width, 664static char *ip4_addr_string(char *buf, char *end, u8 *addr,
624 int precision, int flags) 665 struct printf_spec spec)
625{ 666{
626 char ip4_addr[4 * 4]; /* (4 * 3 decimal digits), 3 dots and trailing zero */ 667 char ip4_addr[4 * 4]; /* (4 * 3 decimal digits), 3 dots and trailing zero */
627 char temp[3]; /* hold each IP quad in reverse order */ 668 char temp[3]; /* hold each IP quad in reverse order */
@@ -637,8 +678,9 @@ static char *ip4_addr_string(char *buf, char *end, u8 *addr, int field_width,
637 *p++ = '.'; 678 *p++ = '.';
638 } 679 }
639 *p = '\0'; 680 *p = '\0';
681 spec.flags &= ~SPECIAL;
640 682
641 return string(buf, end, ip4_addr, field_width, precision, flags & ~SPECIAL); 683 return string(buf, end, ip4_addr, spec);
642} 684}
643 685
644/* 686/*
@@ -663,41 +705,234 @@ static char *ip4_addr_string(char *buf, char *end, u8 *addr, int field_width,
663 * function pointers are really function descriptors, which contain a 705 * function pointers are really function descriptors, which contain a
664 * pointer to the real address. 706 * pointer to the real address.
665 */ 707 */
666static char *pointer(const char *fmt, char *buf, char *end, void *ptr, int field_width, int precision, int flags) 708static char *pointer(const char *fmt, char *buf, char *end, void *ptr,
709 struct printf_spec spec)
667{ 710{
668 if (!ptr) 711 if (!ptr)
669 return string(buf, end, "(null)", field_width, precision, flags); 712 return string(buf, end, "(null)", spec);
670 713
671 switch (*fmt) { 714 switch (*fmt) {
672 case 'F': 715 case 'F':
673 ptr = dereference_function_descriptor(ptr); 716 ptr = dereference_function_descriptor(ptr);
674 /* Fallthrough */ 717 /* Fallthrough */
675 case 'S': 718 case 'S':
676 return symbol_string(buf, end, ptr, field_width, precision, flags); 719 return symbol_string(buf, end, ptr, spec);
677 case 'R': 720 case 'R':
678 return resource_string(buf, end, ptr, field_width, precision, flags); 721 return resource_string(buf, end, ptr, spec);
679 case 'm': 722 case 'm':
680 flags |= SPECIAL; 723 spec.flags |= SPECIAL;
681 /* Fallthrough */ 724 /* Fallthrough */
682 case 'M': 725 case 'M':
683 return mac_address_string(buf, end, ptr, field_width, precision, flags); 726 return mac_address_string(buf, end, ptr, spec);
684 case 'i': 727 case 'i':
685 flags |= SPECIAL; 728 spec.flags |= SPECIAL;
686 /* Fallthrough */ 729 /* Fallthrough */
687 case 'I': 730 case 'I':
688 if (fmt[1] == '6') 731 if (fmt[1] == '6')
689 return ip6_addr_string(buf, end, ptr, field_width, precision, flags); 732 return ip6_addr_string(buf, end, ptr, spec);
690 if (fmt[1] == '4') 733 if (fmt[1] == '4')
691 return ip4_addr_string(buf, end, ptr, field_width, precision, flags); 734 return ip4_addr_string(buf, end, ptr, spec);
692 flags &= ~SPECIAL; 735 spec.flags &= ~SPECIAL;
736 break;
737 }
738 spec.flags |= SMALL;
739 if (spec.field_width == -1) {
740 spec.field_width = 2*sizeof(void *);
741 spec.flags |= ZEROPAD;
742 }
743 spec.base = 16;
744
745 return number(buf, end, (unsigned long) ptr, spec);
746}
747
748/*
749 * Helper function to decode printf style format.
750 * Each call decode a token from the format and return the
751 * number of characters read (or likely the delta where it wants
752 * to go on the next call).
753 * The decoded token is returned through the parameters
754 *
755 * 'h', 'l', or 'L' for integer fields
756 * 'z' support added 23/7/1999 S.H.
757 * 'z' changed to 'Z' --davidm 1/25/99
758 * 't' added for ptrdiff_t
759 *
760 * @fmt: the format string
761 * @type of the token returned
762 * @flags: various flags such as +, -, # tokens..
763 * @field_width: overwritten width
764 * @base: base of the number (octal, hex, ...)
765 * @precision: precision of a number
766 * @qualifier: qualifier of a number (long, size_t, ...)
767 */
768static int format_decode(const char *fmt, struct printf_spec *spec)
769{
770 const char *start = fmt;
771 bool sign = false;
772
773 /* we finished early by reading the field width */
774 if (spec->type == FORMAT_TYPE_WITDH) {
775 if (spec->field_width < 0) {
776 spec->field_width = -spec->field_width;
777 spec->flags |= LEFT;
778 }
779 spec->type = FORMAT_TYPE_NONE;
780 goto precision;
781 }
782
783 /* we finished early by reading the precision */
784 if (spec->type == FORMAT_TYPE_PRECISION) {
785 if (spec->precision < 0)
786 spec->precision = 0;
787
788 spec->type = FORMAT_TYPE_NONE;
789 goto qualifier;
790 }
791
792 /* By default */
793 spec->type = FORMAT_TYPE_NONE;
794
795 for (; *fmt ; ++fmt) {
796 if (*fmt == '%')
797 break;
798 }
799
800 /* Return the current non-format string */
801 if (fmt != start || !*fmt)
802 return fmt - start;
803
804 /* Process flags */
805 spec->flags = 0;
806
807 while (1) { /* this also skips first '%' */
808 bool found = true;
809
810 ++fmt;
811
812 switch (*fmt) {
813 case '-': spec->flags |= LEFT; break;
814 case '+': spec->flags |= PLUS; break;
815 case ' ': spec->flags |= SPACE; break;
816 case '#': spec->flags |= SPECIAL; break;
817 case '0': spec->flags |= ZEROPAD; break;
818 default: found = false;
819 }
820
821 if (!found)
822 break;
823 }
824
825 /* get field width */
826 spec->field_width = -1;
827
828 if (isdigit(*fmt))
829 spec->field_width = skip_atoi(&fmt);
830 else if (*fmt == '*') {
831 /* it's the next argument */
832 spec->type = FORMAT_TYPE_WITDH;
833 return ++fmt - start;
834 }
835
836precision:
837 /* get the precision */
838 spec->precision = -1;
839 if (*fmt == '.') {
840 ++fmt;
841 if (isdigit(*fmt)) {
842 spec->precision = skip_atoi(&fmt);
843 if (spec->precision < 0)
844 spec->precision = 0;
845 } else if (*fmt == '*') {
846 /* it's the next argument */
847 spec->type = FORMAT_TYPE_WITDH;
848 return ++fmt - start;
849 }
850 }
851
852qualifier:
853 /* get the conversion qualifier */
854 spec->qualifier = -1;
855 if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L' ||
856 *fmt == 'Z' || *fmt == 'z' || *fmt == 't') {
857 spec->qualifier = *fmt;
858 ++fmt;
859 if (spec->qualifier == 'l' && *fmt == 'l') {
860 spec->qualifier = 'L';
861 ++fmt;
862 }
863 }
864
865 /* default base */
866 spec->base = 10;
867 switch (*fmt) {
868 case 'c':
869 spec->type = FORMAT_TYPE_CHAR;
870 return ++fmt - start;
871
872 case 's':
873 spec->type = FORMAT_TYPE_STR;
874 return ++fmt - start;
875
876 case 'p':
877 spec->type = FORMAT_TYPE_PTR;
878 return fmt - start;
879 /* skip alnum */
880
881 case 'n':
882 spec->type = FORMAT_TYPE_NRCHARS;
883 return ++fmt - start;
884
885 case '%':
886 spec->type = FORMAT_TYPE_PERCENT_CHAR;
887 return ++fmt - start;
888
889 /* integer number formats - set up the flags and "break" */
890 case 'o':
891 spec->base = 8;
693 break; 892 break;
893
894 case 'x':
895 spec->flags |= SMALL;
896
897 case 'X':
898 spec->base = 16;
899 break;
900
901 case 'd':
902 case 'i':
903 sign = true;
904 case 'u':
905 break;
906
907 default:
908 spec->type = FORMAT_TYPE_INVALID;
909 return fmt - start;
694 } 910 }
695 flags |= SMALL; 911
696 if (field_width == -1) { 912 if (spec->qualifier == 'L')
697 field_width = 2*sizeof(void *); 913 spec->type = FORMAT_TYPE_LONG_LONG;
698 flags |= ZEROPAD; 914 else if (spec->qualifier == 'l') {
915 if (sign)
916 spec->type = FORMAT_TYPE_LONG;
917 else
918 spec->type = FORMAT_TYPE_ULONG;
919 } else if (spec->qualifier == 'Z' || spec->qualifier == 'z') {
920 spec->type = FORMAT_TYPE_SIZE_T;
921 } else if (spec->qualifier == 't') {
922 spec->type = FORMAT_TYPE_PTRDIFF;
923 } else if (spec->qualifier == 'h') {
924 if (sign)
925 spec->type = FORMAT_TYPE_SHORT;
926 else
927 spec->type = FORMAT_TYPE_USHORT;
928 } else {
929 if (sign)
930 spec->type = FORMAT_TYPE_INT;
931 else
932 spec->type = FORMAT_TYPE_UINT;
699 } 933 }
700 return number(buf, end, (unsigned long) ptr, 16, field_width, precision, flags); 934
935 return ++fmt - start;
701} 936}
702 937
703/** 938/**
@@ -726,18 +961,9 @@ static char *pointer(const char *fmt, char *buf, char *end, void *ptr, int field
726int vsnprintf(char *buf, size_t size, const char *fmt, va_list args) 961int vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
727{ 962{
728 unsigned long long num; 963 unsigned long long num;
729 int base;
730 char *str, *end, c; 964 char *str, *end, c;
731 965 int read;
732 int flags; /* flags to number() */ 966 struct printf_spec spec = {0};
733
734 int field_width; /* width of output field */
735 int precision; /* min. # of digits for integers; max
736 number of chars for from string */
737 int qualifier; /* 'h', 'l', or 'L' for integer fields */
738 /* 'z' support added 23/7/1999 S.H. */
739 /* 'z' changed to 'Z' --davidm 1/25/99 */
740 /* 't' added for ptrdiff_t */
741 967
742 /* Reject out-of-range values early. Large positive sizes are 968 /* Reject out-of-range values early. Large positive sizes are
743 used for unknown buffer sizes. */ 969 used for unknown buffer sizes. */
@@ -758,184 +984,144 @@ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
758 size = end - buf; 984 size = end - buf;
759 } 985 }
760 986
761 for (; *fmt ; ++fmt) { 987 while (*fmt) {
762 if (*fmt != '%') { 988 const char *old_fmt = fmt;
763 if (str < end)
764 *str = *fmt;
765 ++str;
766 continue;
767 }
768 989
769 /* process flags */ 990 read = format_decode(fmt, &spec);
770 flags = 0;
771 repeat:
772 ++fmt; /* this also skips first '%' */
773 switch (*fmt) {
774 case '-': flags |= LEFT; goto repeat;
775 case '+': flags |= PLUS; goto repeat;
776 case ' ': flags |= SPACE; goto repeat;
777 case '#': flags |= SPECIAL; goto repeat;
778 case '0': flags |= ZEROPAD; goto repeat;
779 }
780 991
781 /* get field width */ 992 fmt += read;
782 field_width = -1;
783 if (isdigit(*fmt))
784 field_width = skip_atoi(&fmt);
785 else if (*fmt == '*') {
786 ++fmt;
787 /* it's the next argument */
788 field_width = va_arg(args, int);
789 if (field_width < 0) {
790 field_width = -field_width;
791 flags |= LEFT;
792 }
793 }
794 993
795 /* get the precision */ 994 switch (spec.type) {
796 precision = -1; 995 case FORMAT_TYPE_NONE: {
797 if (*fmt == '.') { 996 int copy = read;
798 ++fmt; 997 if (str < end) {
799 if (isdigit(*fmt)) 998 if (copy > end - str)
800 precision = skip_atoi(&fmt); 999 copy = end - str;
801 else if (*fmt == '*') { 1000 memcpy(str, old_fmt, copy);
802 ++fmt;
803 /* it's the next argument */
804 precision = va_arg(args, int);
805 } 1001 }
806 if (precision < 0) 1002 str += read;
807 precision = 0; 1003 break;
808 } 1004 }
809 1005
810 /* get the conversion qualifier */ 1006 case FORMAT_TYPE_WITDH:
811 qualifier = -1; 1007 spec.field_width = va_arg(args, int);
812 if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L' || 1008 break;
813 *fmt =='Z' || *fmt == 'z' || *fmt == 't') {
814 qualifier = *fmt;
815 ++fmt;
816 if (qualifier == 'l' && *fmt == 'l') {
817 qualifier = 'L';
818 ++fmt;
819 }
820 }
821 1009
822 /* default base */ 1010 case FORMAT_TYPE_PRECISION:
823 base = 10; 1011 spec.precision = va_arg(args, int);
1012 break;
824 1013
825 switch (*fmt) { 1014 case FORMAT_TYPE_CHAR:
826 case 'c': 1015 if (!(spec.flags & LEFT)) {
827 if (!(flags & LEFT)) { 1016 while (--spec.field_width > 0) {
828 while (--field_width > 0) {
829 if (str < end)
830 *str = ' ';
831 ++str;
832 }
833 }
834 c = (unsigned char) va_arg(args, int);
835 if (str < end)
836 *str = c;
837 ++str;
838 while (--field_width > 0) {
839 if (str < end) 1017 if (str < end)
840 *str = ' '; 1018 *str = ' ';
841 ++str; 1019 ++str;
842 }
843 continue;
844
845 case 's':
846 str = string(str, end, va_arg(args, char *), field_width, precision, flags);
847 continue;
848
849 case 'p':
850 str = pointer(fmt+1, str, end,
851 va_arg(args, void *),
852 field_width, precision, flags);
853 /* Skip all alphanumeric pointer suffixes */
854 while (isalnum(fmt[1]))
855 fmt++;
856 continue;
857
858 case 'n':
859 /* FIXME:
860 * What does C99 say about the overflow case here? */
861 if (qualifier == 'l') {
862 long * ip = va_arg(args, long *);
863 *ip = (str - buf);
864 } else if (qualifier == 'Z' || qualifier == 'z') {
865 size_t * ip = va_arg(args, size_t *);
866 *ip = (str - buf);
867 } else {
868 int * ip = va_arg(args, int *);
869 *ip = (str - buf);
870 }
871 continue;
872 1020
873 case '%': 1021 }
1022 }
1023 c = (unsigned char) va_arg(args, int);
1024 if (str < end)
1025 *str = c;
1026 ++str;
1027 while (--spec.field_width > 0) {
874 if (str < end) 1028 if (str < end)
875 *str = '%'; 1029 *str = ' ';
876 ++str; 1030 ++str;
877 continue; 1031 }
1032 break;
878 1033
879 /* integer number formats - set up the flags and "break" */ 1034 case FORMAT_TYPE_STR:
880 case 'o': 1035 str = string(str, end, va_arg(args, char *), spec);
881 base = 8; 1036 break;
882 break;
883 1037
884 case 'x': 1038 case FORMAT_TYPE_PTR:
885 flags |= SMALL; 1039 str = pointer(fmt+1, str, end, va_arg(args, void *),
886 case 'X': 1040 spec);
887 base = 16; 1041 while (isalnum(*fmt))
888 break; 1042 fmt++;
1043 break;
889 1044
890 case 'd': 1045 case FORMAT_TYPE_PERCENT_CHAR:
891 case 'i': 1046 if (str < end)
892 flags |= SIGN; 1047 *str = '%';
893 case 'u': 1048 ++str;
894 break; 1049 break;
895 1050
896 default: 1051 case FORMAT_TYPE_INVALID:
1052 if (str < end)
1053 *str = '%';
1054 ++str;
1055 if (*fmt) {
897 if (str < end) 1056 if (str < end)
898 *str = '%'; 1057 *str = *fmt;
899 ++str; 1058 ++str;
900 if (*fmt) { 1059 } else {
901 if (str < end) 1060 --fmt;
902 *str = *fmt; 1061 }
903 ++str; 1062 break;
904 } else { 1063
905 --fmt; 1064 case FORMAT_TYPE_NRCHARS: {
906 } 1065 int qualifier = spec.qualifier;
907 continue; 1066
1067 if (qualifier == 'l') {
1068 long *ip = va_arg(args, long *);
1069 *ip = (str - buf);
1070 } else if (qualifier == 'Z' ||
1071 qualifier == 'z') {
1072 size_t *ip = va_arg(args, size_t *);
1073 *ip = (str - buf);
1074 } else {
1075 int *ip = va_arg(args, int *);
1076 *ip = (str - buf);
1077 }
1078 break;
908 } 1079 }
909 if (qualifier == 'L') 1080
910 num = va_arg(args, long long); 1081 default:
911 else if (qualifier == 'l') { 1082 switch (spec.type) {
912 num = va_arg(args, unsigned long); 1083 case FORMAT_TYPE_LONG_LONG:
913 if (flags & SIGN) 1084 num = va_arg(args, long long);
914 num = (signed long) num; 1085 break;
915 } else if (qualifier == 'Z' || qualifier == 'z') { 1086 case FORMAT_TYPE_ULONG:
916 num = va_arg(args, size_t); 1087 num = va_arg(args, unsigned long);
917 } else if (qualifier == 't') { 1088 break;
918 num = va_arg(args, ptrdiff_t); 1089 case FORMAT_TYPE_LONG:
919 } else if (qualifier == 'h') { 1090 num = va_arg(args, long);
920 num = (unsigned short) va_arg(args, int); 1091 break;
921 if (flags & SIGN) 1092 case FORMAT_TYPE_SIZE_T:
922 num = (signed short) num; 1093 num = va_arg(args, size_t);
923 } else { 1094 break;
924 num = va_arg(args, unsigned int); 1095 case FORMAT_TYPE_PTRDIFF:
925 if (flags & SIGN) 1096 num = va_arg(args, ptrdiff_t);
926 num = (signed int) num; 1097 break;
1098 case FORMAT_TYPE_USHORT:
1099 num = (unsigned short) va_arg(args, int);
1100 break;
1101 case FORMAT_TYPE_SHORT:
1102 num = (short) va_arg(args, int);
1103 break;
1104 case FORMAT_TYPE_UINT:
1105 num = va_arg(args, unsigned int);
1106 break;
1107 default:
1108 num = va_arg(args, unsigned int);
1109 }
1110
1111 str = number(str, end, num, spec);
927 } 1112 }
928 str = number(str, end, num, base,
929 field_width, precision, flags);
930 } 1113 }
1114
931 if (size > 0) { 1115 if (size > 0) {
932 if (str < end) 1116 if (str < end)
933 *str = '\0'; 1117 *str = '\0';
934 else 1118 else
935 end[-1] = '\0'; 1119 end[-1] = '\0';
936 } 1120 }
1121
937 /* the trailing null byte doesn't count towards the total */ 1122 /* the trailing null byte doesn't count towards the total */
938 return str-buf; 1123 return str-buf;
1124
939} 1125}
940EXPORT_SYMBOL(vsnprintf); 1126EXPORT_SYMBOL(vsnprintf);
941 1127
@@ -1084,8 +1270,9 @@ EXPORT_SYMBOL(sprintf);
1084 */ 1270 */
1085int vbin_printf(u32 *bin_buf, size_t size, const char *fmt, va_list args) 1271int vbin_printf(u32 *bin_buf, size_t size, const char *fmt, va_list args)
1086{ 1272{
1273 struct printf_spec spec = {0};
1087 char *str, *end; 1274 char *str, *end;
1088 int qualifier; 1275 int read;
1089 1276
1090 str = (char *)bin_buf; 1277 str = (char *)bin_buf;
1091 end = (char *)(bin_buf + size); 1278 end = (char *)(bin_buf + size);
@@ -1110,57 +1297,26 @@ do { \
1110 str += sizeof(type); \ 1297 str += sizeof(type); \
1111} while (0) 1298} while (0)
1112 1299
1113 for (; *fmt ; ++fmt) {
1114 if (*fmt != '%')
1115 continue;
1116 1300
1117repeat: 1301 while (*fmt) {
1118 /* parse flags */ 1302 read = format_decode(fmt, &spec);
1119 ++fmt; /* this also skips first '%' */
1120 if (*fmt == '-' || *fmt == '+' || *fmt == ' '
1121 || *fmt == '#' || *fmt == '0')
1122 goto repeat;
1123 1303
1124 /* parse field width */ 1304 fmt += read;
1125 if (isdigit(*fmt))
1126 skip_atoi(&fmt);
1127 else if (*fmt == '*') {
1128 ++fmt;
1129 /* it's the next argument */
1130 save_arg(int);
1131 }
1132 1305
1133 /* parse the precision */ 1306 switch (spec.type) {
1134 if (*fmt == '.') { 1307 case FORMAT_TYPE_NONE:
1135 ++fmt; 1308 break;
1136 if (isdigit(*fmt))
1137 skip_atoi(&fmt);
1138 else if (*fmt == '*') {
1139 ++fmt;
1140 /* it's the next argument */
1141 save_arg(int);
1142 }
1143 }
1144 1309
1145 /* parse the conversion qualifier */ 1310 case FORMAT_TYPE_WITDH:
1146 qualifier = -1; 1311 case FORMAT_TYPE_PRECISION:
1147 if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L' || 1312 save_arg(int);
1148 *fmt == 'Z' || *fmt == 'z' || *fmt == 't') { 1313 break;
1149 qualifier = *fmt;
1150 ++fmt;
1151 if (qualifier == 'l' && *fmt == 'l') {
1152 qualifier = 'L';
1153 ++fmt;
1154 }
1155 }
1156 1314
1157 /* parse format type */ 1315 case FORMAT_TYPE_CHAR:
1158 switch (*fmt) {
1159 case 'c':
1160 save_arg(char); 1316 save_arg(char);
1161 continue; 1317 break;
1162 case 's': { 1318
1163 /* save the string argument */ 1319 case FORMAT_TYPE_STR: {
1164 const char *save_str = va_arg(args, char *); 1320 const char *save_str = va_arg(args, char *);
1165 size_t len; 1321 size_t len;
1166 if ((unsigned long)save_str > (unsigned long)-PAGE_SIZE 1322 if ((unsigned long)save_str > (unsigned long)-PAGE_SIZE
@@ -1170,16 +1326,27 @@ repeat:
1170 if (str + len + 1 < end) 1326 if (str + len + 1 < end)
1171 memcpy(str, save_str, len + 1); 1327 memcpy(str, save_str, len + 1);
1172 str += len + 1; 1328 str += len + 1;
1173 continue; 1329 break;
1174 } 1330 }
1175 case 'p': 1331
1332 case FORMAT_TYPE_PTR:
1176 save_arg(void *); 1333 save_arg(void *);
1177 /* skip all alphanumeric pointer suffixes */ 1334 /* skip all alphanumeric pointer suffixes */
1178 while (isalnum(fmt[1])) 1335 while (isalnum(*fmt))
1179 fmt++; 1336 fmt++;
1180 continue; 1337 break;
1181 case 'n': { 1338
1339 case FORMAT_TYPE_PERCENT_CHAR:
1340 break;
1341
1342 case FORMAT_TYPE_INVALID:
1343 if (!*fmt)
1344 --fmt;
1345 break;
1346
1347 case FORMAT_TYPE_NRCHARS: {
1182 /* skip %n 's argument */ 1348 /* skip %n 's argument */
1349 int qualifier = spec.qualifier;
1183 void *skip_arg; 1350 void *skip_arg;
1184 if (qualifier == 'l') 1351 if (qualifier == 'l')
1185 skip_arg = va_arg(args, long *); 1352 skip_arg = va_arg(args, long *);
@@ -1187,37 +1354,37 @@ repeat:
1187 skip_arg = va_arg(args, size_t *); 1354 skip_arg = va_arg(args, size_t *);
1188 else 1355 else
1189 skip_arg = va_arg(args, int *); 1356 skip_arg = va_arg(args, int *);
1190 continue; 1357 break;
1191 } 1358 }
1192 case 'o': 1359
1193 case 'x': 1360 default:
1194 case 'X': 1361 switch (spec.type) {
1195 case 'd': 1362
1196 case 'i': 1363 case FORMAT_TYPE_LONG_LONG:
1197 case 'u':
1198 /* save arg for case: 'o', 'x', 'X', 'd', 'i', 'u' */
1199 if (qualifier == 'L')
1200 save_arg(long long); 1364 save_arg(long long);
1201 else if (qualifier == 'l') 1365 break;
1366 case FORMAT_TYPE_ULONG:
1367 case FORMAT_TYPE_LONG:
1202 save_arg(unsigned long); 1368 save_arg(unsigned long);
1203 else if (qualifier == 'Z' || qualifier == 'z') 1369 break;
1370 case FORMAT_TYPE_SIZE_T:
1204 save_arg(size_t); 1371 save_arg(size_t);
1205 else if (qualifier == 't') 1372 break;
1373 case FORMAT_TYPE_PTRDIFF:
1206 save_arg(ptrdiff_t); 1374 save_arg(ptrdiff_t);
1207 else if (qualifier == 'h') 1375 break;
1376 case FORMAT_TYPE_USHORT:
1377 case FORMAT_TYPE_SHORT:
1208 save_arg(short); 1378 save_arg(short);
1209 else 1379 break;
1380 default:
1210 save_arg(int); 1381 save_arg(int);
1211 continue; 1382 }
1212 default:
1213 if (!*fmt)
1214 --fmt;
1215 continue;
1216 } 1383 }
1217 } 1384 }
1218#undef save_arg
1219
1220 return (u32 *)(PTR_ALIGN(str, sizeof(u32))) - bin_buf; 1385 return (u32 *)(PTR_ALIGN(str, sizeof(u32))) - bin_buf;
1386
1387#undef save_arg
1221} 1388}
1222EXPORT_SYMBOL_GPL(vbin_printf); 1389EXPORT_SYMBOL_GPL(vbin_printf);
1223 1390
@@ -1249,14 +1416,10 @@ EXPORT_SYMBOL_GPL(vbin_printf);
1249int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf) 1416int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
1250{ 1417{
1251 unsigned long long num; 1418 unsigned long long num;
1252 int base;
1253 char *str, *end, c; 1419 char *str, *end, c;
1254 const char *args = (const char *)bin_buf; 1420 const char *args = (const char *)bin_buf;
1255 1421
1256 int flags; 1422 struct printf_spec spec = {0};
1257 int field_width;
1258 int precision;
1259 int qualifier;
1260 1423
1261 if (unlikely((int) size < 0)) { 1424 if (unlikely((int) size < 0)) {
1262 /* There can be only one.. */ 1425 /* There can be only one.. */
@@ -1290,84 +1453,37 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
1290 size = end - buf; 1453 size = end - buf;
1291 } 1454 }
1292 1455
1293 for (; *fmt ; ++fmt) { 1456 while (*fmt) {
1294 if (*fmt != '%') { 1457 int read;
1295 if (str < end) 1458 const char *old_fmt = fmt;
1296 *str = *fmt;
1297 ++str;
1298 continue;
1299 }
1300 1459
1301 /* process flags */ 1460 read = format_decode(fmt, &spec);
1302 flags = 0;
1303repeat:
1304 ++fmt; /* this also skips first '%' */
1305 switch (*fmt) {
1306 case '-':
1307 flags |= LEFT;
1308 goto repeat;
1309 case '+':
1310 flags |= PLUS;
1311 goto repeat;
1312 case ' ':
1313 flags |= SPACE;
1314 goto repeat;
1315 case '#':
1316 flags |= SPECIAL;
1317 goto repeat;
1318 case '0':
1319 flags |= ZEROPAD;
1320 goto repeat;
1321 }
1322 1461
1323 /* get field width */ 1462 fmt += read;
1324 field_width = -1;
1325 if (isdigit(*fmt))
1326 field_width = skip_atoi(&fmt);
1327 else if (*fmt == '*') {
1328 ++fmt;
1329 /* it's the next argument */
1330 field_width = get_arg(int);
1331 if (field_width < 0) {
1332 field_width = -field_width;
1333 flags |= LEFT;
1334 }
1335 }
1336 1463
1337 /* get the precision */ 1464 switch (spec.type) {
1338 precision = -1; 1465 case FORMAT_TYPE_NONE: {
1339 if (*fmt == '.') { 1466 int copy = read;
1340 ++fmt; 1467 if (str < end) {
1341 if (isdigit(*fmt)) 1468 if (copy > end - str)
1342 precision = skip_atoi(&fmt); 1469 copy = end - str;
1343 else if (*fmt == '*') { 1470 memcpy(str, old_fmt, copy);
1344 ++fmt;
1345 /* it's the next argument */
1346 precision = get_arg(int);
1347 } 1471 }
1348 if (precision < 0) 1472 str += read;
1349 precision = 0; 1473 break;
1350 } 1474 }
1351 1475
1352 /* get the conversion qualifier */ 1476 case FORMAT_TYPE_WITDH:
1353 qualifier = -1; 1477 spec.field_width = get_arg(int);
1354 if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L' || 1478 break;
1355 *fmt == 'Z' || *fmt == 'z' || *fmt == 't') {
1356 qualifier = *fmt;
1357 ++fmt;
1358 if (qualifier == 'l' && *fmt == 'l') {
1359 qualifier = 'L';
1360 ++fmt;
1361 }
1362 }
1363 1479
1364 /* default base */ 1480 case FORMAT_TYPE_PRECISION:
1365 base = 10; 1481 spec.precision = get_arg(int);
1482 break;
1366 1483
1367 switch (*fmt) { 1484 case FORMAT_TYPE_CHAR:
1368 case 'c': 1485 if (!(spec.flags & LEFT)) {
1369 if (!(flags & LEFT)) { 1486 while (--spec.field_width > 0) {
1370 while (--field_width > 0) {
1371 if (str < end) 1487 if (str < end)
1372 *str = ' '; 1488 *str = ' ';
1373 ++str; 1489 ++str;
@@ -1377,58 +1493,34 @@ repeat:
1377 if (str < end) 1493 if (str < end)
1378 *str = c; 1494 *str = c;
1379 ++str; 1495 ++str;
1380 while (--field_width > 0) { 1496 while (--spec.field_width > 0) {
1381 if (str < end) 1497 if (str < end)
1382 *str = ' '; 1498 *str = ' ';
1383 ++str; 1499 ++str;
1384 } 1500 }
1385 continue; 1501 break;
1386 1502
1387 case 's':{ 1503 case FORMAT_TYPE_STR: {
1388 const char *str_arg = args; 1504 const char *str_arg = args;
1389 size_t len = strlen(str_arg); 1505 size_t len = strlen(str_arg);
1390 args += len + 1; 1506 args += len + 1;
1391 str = string(str, end, (char *)str_arg, field_width, 1507 str = string(str, end, (char *)str_arg, spec);
1392 precision, flags); 1508 break;
1393 continue;
1394 } 1509 }
1395 1510
1396 case 'p': 1511 case FORMAT_TYPE_PTR:
1397 str = pointer(fmt+1, str, end, get_arg(void *), 1512 str = pointer(fmt+1, str, end, get_arg(void *), spec);
1398 field_width, precision, flags); 1513 while (isalnum(*fmt))
1399 /* Skip all alphanumeric pointer suffixes */
1400 while (isalnum(fmt[1]))
1401 fmt++; 1514 fmt++;
1402 continue; 1515 break;
1403
1404 case 'n':
1405 /* skip %n */
1406 continue;
1407 1516
1408 case '%': 1517 case FORMAT_TYPE_PERCENT_CHAR:
1409 if (str < end) 1518 if (str < end)
1410 *str = '%'; 1519 *str = '%';
1411 ++str; 1520 ++str;
1412 continue;
1413
1414 /* integer number formats - set up the flags and "break" */
1415 case 'o':
1416 base = 8;
1417 break;
1418
1419 case 'x':
1420 flags |= SMALL;
1421 case 'X':
1422 base = 16;
1423 break; 1521 break;
1424 1522
1425 case 'd': 1523 case FORMAT_TYPE_INVALID:
1426 case 'i':
1427 flags |= SIGN;
1428 case 'u':
1429 break;
1430
1431 default:
1432 if (str < end) 1524 if (str < end)
1433 *str = '%'; 1525 *str = '%';
1434 ++str; 1526 ++str;
@@ -1439,36 +1531,54 @@ repeat:
1439 } else { 1531 } else {
1440 --fmt; 1532 --fmt;
1441 } 1533 }
1442 continue; 1534 break;
1443 } 1535
1444 if (qualifier == 'L') 1536 case FORMAT_TYPE_NRCHARS:
1445 num = get_arg(long long); 1537 /* skip */
1446 else if (qualifier == 'l') { 1538 break;
1447 num = get_arg(unsigned long); 1539
1448 if (flags & SIGN) 1540 default:
1449 num = (signed long) num; 1541 switch (spec.type) {
1450 } else if (qualifier == 'Z' || qualifier == 'z') { 1542
1451 num = get_arg(size_t); 1543 case FORMAT_TYPE_LONG_LONG:
1452 } else if (qualifier == 't') { 1544 num = get_arg(long long);
1453 num = get_arg(ptrdiff_t); 1545 break;
1454 } else if (qualifier == 'h') { 1546 case FORMAT_TYPE_ULONG:
1455 num = (unsigned short) get_arg(short); 1547 num = get_arg(unsigned long);
1456 if (flags & SIGN) 1548 break;
1457 num = (signed short) num; 1549 case FORMAT_TYPE_LONG:
1458 } else { 1550 num = get_arg(unsigned long);
1459 num = get_arg(unsigned int); 1551 break;
1460 if (flags & SIGN) 1552 case FORMAT_TYPE_SIZE_T:
1461 num = (signed int) num; 1553 num = get_arg(size_t);
1554 break;
1555 case FORMAT_TYPE_PTRDIFF:
1556 num = get_arg(ptrdiff_t);
1557 break;
1558 case FORMAT_TYPE_USHORT:
1559 num = get_arg(unsigned short);
1560 break;
1561 case FORMAT_TYPE_SHORT:
1562 num = get_arg(short);
1563 break;
1564 case FORMAT_TYPE_UINT:
1565 num = get_arg(unsigned int);
1566 break;
1567 default:
1568 num = get_arg(int);
1569 }
1570
1571 str = number(str, end, num, spec);
1462 } 1572 }
1463 str = number(str, end, num, base,
1464 field_width, precision, flags);
1465 } 1573 }
1574
1466 if (size > 0) { 1575 if (size > 0) {
1467 if (str < end) 1576 if (str < end)
1468 *str = '\0'; 1577 *str = '\0';
1469 else 1578 else
1470 end[-1] = '\0'; 1579 end[-1] = '\0';
1471 } 1580 }
1581
1472#undef get_arg 1582#undef get_arg
1473 1583
1474 /* the trailing null byte doesn't count towards the total */ 1584 /* the trailing null byte doesn't count towards the total */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-12 20:37:52 -0500