MirBSD Korn Shell for Jehanne
667d792d6a
– possible integer overflows in memory allocation, mostly
‣ multiplication: all are checked now
‣ addition: reviewed them, most were “proven” or guessed to be
“almost” impossible to run over (e.g. when we have a string
whose length is taken it is assumed that the length will be
more than only a few bytes below SIZE_MAX, since code and
stack have to fit); some are checked now (e.g. when one of
the summands is an off_t); most of the unchecked ones are
annotated now
⇒ cost (MirBSD/i386 static): +76 .text
⇒ cost (Debian sid/i386): +779 .text -4 .data
– on Linux targets, setuid() setresuid() setresgid() can fail
with EAGAIN; check for that and, if so, warn once and retry
infinitely (other targets to be added later once we know that
they are “insane”)
⇒ cost (Debian sid/i386): +192 .text (includes .rodata)
• setmode.c: Do overflow checking for realloc() too; switch back
from calloc() to a checked malloc() for simplification while there
• define -DIN_MKSH and let setmode.c look a tad nicer while here
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|---|---|---|
| Build.sh | ||
| check.pl | ||
| check.t | ||
| dot.mkshrc | ||
| edit.c | ||
| emacsfn.h | ||
| eval.c | ||
| exec.c | ||
| expr.c | ||
| funcs.c | ||
| histrap.c | ||
| jobs.c | ||
| lalloc.c | ||
| lex.c | ||
| main.c | ||
| Makefile | ||
| misc.c | ||
| mksh.1 | ||
| setmode.c | ||
| sh_flags.h | ||
| sh.h | ||
| shf.c | ||
| strlcpy.c | ||
| syn.c | ||
| tree.c | ||
| var_spec.h | ||
| var.c | ||