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comparison src/strings.c @ 31624:d605a50e7623 v9.0.1144

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patch 9.0.1144: reading beyond text Commit: https://github.com/vim/vim/commit/c32949b0779106ed5710ae3bffc5053e49083ab4 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jan 4 15:56:51 2023 +0000 patch 9.0.1144: reading beyond text Problem: Reading beyond text. Solution: Add strlen_maxlen() and use it.
author Bram Moolenaar <Bram@vim.org>
date Wed, 04 Jan 2023 17:00:05 +0100
parents b3de17181c19
children 543153d582d5
comparison
equal deleted inserted replaced
31623:f061953e1618 31624:d605a50e7623
523 } 523 }
524 else 524 else
525 mch_memmove(to + tolen, from, fromlen + 1); 525 mch_memmove(to + tolen, from, fromlen + 1);
526 } 526 }
527 527
528 /*
529 * A version of strlen() that has a maximum length.
530 */
531 size_t
532 vim_strlen_maxlen(char *s, size_t maxlen)
533 {
534 size_t i;
535 for (i = 0; i < maxlen; ++i)
536 if (s[i] == NUL)
537 break;
538 return i;
539 }
540
528 #if (!defined(HAVE_STRCASECMP) && !defined(HAVE_STRICMP)) || defined(PROTO) 541 #if (!defined(HAVE_STRCASECMP) && !defined(HAVE_STRICMP)) || defined(PROTO)
529 /* 542 /*
530 * Compare two strings, ignoring case, using current locale. 543 * Compare two strings, ignoring case, using current locale.
531 * Doesn't work for multi-byte characters. 544 * Doesn't work for multi-byte characters.
532 * return 0 for match, < 0 for smaller, > 0 for bigger 545 * return 0 for match, < 0 for smaller, > 0 for bigger
580 * Search for first occurrence of "c" in "string". 593 * Search for first occurrence of "c" in "string".
581 * Version of strchr() that handles unsigned char strings with characters from 594 * Version of strchr() that handles unsigned char strings with characters from
582 * 128 to 255 correctly. It also doesn't return a pointer to the NUL at the 595 * 128 to 255 correctly. It also doesn't return a pointer to the NUL at the
583 * end of the string. 596 * end of the string.
584 */ 597 */
585 char_u * 598 char_u *
586 vim_strchr(char_u *string, int c) 599 vim_strchr(char_u *string, int c)
587 { 600 {
588 char_u *p; 601 char_u *p;
589 int b; 602 int b;
590 603