R.bin (1.1.0) gives segfault
On Fri, 2 Jun 2000, Albrecht Gebhardt wrote:
During testing with R-devel on the alpha I just noticed (after misspelling
"bin/R" as "bin/R.bin") that R.bin segfaults. It accesses the empty R_HOME
variable and should better give an error instead of a crash:
a gdb output snippet:
...
Program received signal SIGSEGV, Segmentation fault.
0x3ff800d6a10 in strcpy ()
(gdb) backtrace
#0 0x3ff800d6a10 in strcpy ()
#1 0x1200efda0 in R_load_X11_shlib () at dynload.c:454
#2 0x1200ecc88 in main (ac=1, av=0x11fffef28) at system.c:160
(gdb) up
#1 0x1200efda0 in R_load_X11_shlib () at dynload.c:454
454 strcpy(X11_DLL, getenv("R_HOME"));
some test for getenv returning NULL followed by exit(1) would be
better.
Yes, will do. That's hardly a misspelling, though, and it is hard to know how far to go to protect users from negligence. I did actually think about that, and think `it can't happen: R_HOME is always set in R.sh'. We've been here before: that construction crashes on some systems and not on others.
Brian D. Ripley, ripley@stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272860 (secr) Oxford OX1 3TG, UK Fax: +44 1865 272595 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-devel-request@stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._