81a719df6e
create a ptrdiff_t offset between the start of an allocation region and some interesting pointer, so it can be adjusted with this offset after realloc() returns. for pdisk(), realloc() is a locally inlind malloc() and free() pair. for mail(1), this required a little bit more effort as the old pointer was passed into another file for fix-ups there, and that code needed to be adjusted for offset vs old pointer usage. found by GCC 12. |
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| .. | ||
| Makefile | ||
| rs.1 | ||
| rs.c | ||