steve@miduet.UUCP (07/14/86)
[Probably old hat, this, but anyway....] A colleague of mine unearthed this bug in 4.2 malloc.c when it was compiled with range checking (RCHECK) included. This manifested itself by returning errors whenever 'realloc' was used. A diff follows. ----------------------------------------------------------------- |Steve Lademann |Phone: 44 727 59292 x326 | |Marconi Instruments Ltd|UUCP : ...mcvax!ukc!hrc63!miduet!steve | |St. Albans AL4 0JN |NRS : steve@uk.co.gec-mi-at | |Herts. UK | | ----------------------------------------------------------------- |"The views expressed herein do not necessarily reflect"| _____ | |"those of my employer, and may not even reflect my own"| ( ) | ----------------------------------------------------------------- 16a17,20 > /* > * Modified By Tim Yates <yates@miduet.UUCP> to fix bug when using RCHECK > */ > 263a268,278 > /* modified by Tim Yates <yates@miduet.UUCP> */ > /* correct the position of the magic number and the > * real size of the block */ > #ifdef RCHECK > { > nbytes += sizeof(union overhead) + RSLOP; > nbytes = (nbytes + 3) &~ 3; > op->ov_size = nbytes - 1; > *((u_int *)((caddr_t)op + nbytes - RSLOP)) = RMAGIC; > } > #endif RCHECK