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comparison mcabber/src/utils.c @ 1122:648fe6f715a6

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Filter out ^M (0x0d) characters in incoming messages This fixes a bug with some centericq versions, reported by Frank Zschockelt.
author Mikael Berthe <mikael@lilotux.net>
date Sat, 13 Jan 2007 14:27:54 +0100
parents 8e12137fab20
children 9726c78a91f3
comparison
equal deleted inserted replaced
1121:1aeba5c19834 1122:648fe6f715a6
484 *p = 0; 484 *p = 0;
485 } 485 }
486 } 486 }
487 487
488 // ut_expand_tabs(text) 488 // ut_expand_tabs(text)
489 // Expand tabs in string text. 489 // Expand tabs and filter out some bad chars in string text.
490 // If there is no tab in the string, a pointer to text is returned (be 490 // If there is no tab and no bad chars in the string, a pointer to text
491 // careful _not_ to free the pointer in this case). 491 // is returned (be careful _not_ to free the pointer in this case).
492 // If there are some tabs, a new string with expanded chars is returned; this 492 // If there are some tabs or bad chars, a new string with expanded chars
493 // is up to the caller to free this string after use. 493 // and no bad chars is returned; this is up to the caller to free this
494 // string after use.
494 char *ut_expand_tabs(const char *text) 495 char *ut_expand_tabs(const char *text)
495 { 496 {
496 char *xtext; 497 char *xtext;
497 char *p, *q; 498 char *p, *q;
498 guint8 n=0; 499 guint n = 0, bc = 0;
499 500
500 xtext = (char*)text; 501 xtext = (char*)text;
501 for (p=xtext; *p; p++) 502 for (p=xtext; *p; p++)
502 if (*p == '\t') n++; 503 if (*p == '\t')
503 504 n++;
504 if (!n) 505 else if (*p == '\x0d')
506 bc++;
507 // XXX Are there other special chars we should filter out?
508
509 if (!n && !bc)
505 return (char*)text; 510 return (char*)text;
506 511
507 xtext = g_new(char, strlen(text) + 1 + 8*n); 512 xtext = g_new(char, strlen(text) + 1 + 8*n);
508 p = (char*)text; 513 p = (char*)text;
509 q = xtext; 514 q = xtext;
510 do { 515 do {
511 if (*p == '\t') { 516 if (*p == '\t') {
512 do { *q++ = ' '; } while ((q-xtext)%8); 517 do { *q++ = ' '; } while ((q-xtext)%8);
513 } else { 518 } else if (*p != '\x0d') {
514 *q++ = *p; 519 *q++ = *p;
515 } 520 }
516 } while (*p++); 521 } while (*p++);
517 522
518 return xtext; 523 return xtext;