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9d428f8f5e
After making PATH readonly in a virtual subshell (without otherwise changing it, so the subshell is never forked), then the main shell would erroneously fork into a background process immediately after leaving the virtual subshell. This was caused by a bug in the forking workaround that prevents changes in PATH in a virtual subshell from clearing the parent shell's hash table. src/cmd/ksh93/sh/name.c: nv_putval(): - If we're either setting or restoring PATH, do an additional check for the NV_RDONLY flag, which means the function was told to ignore the variable's readonly state. It is told to ignore that when restoring the parent shell state after exiting a virtual subshell. If we don't fork then, we don't fork the parent shell. src/cmd/ksh93/tests/subshell.sh: - Add regression test verifying that no forking happens when making PATH readonly in a subshell. Fixes #30. |
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| .. | ||
| args.c | ||
| arith.c | ||
| array.c | ||
| bash.c | ||
| defs.c | ||
| deparse.c | ||
| env.c | ||
| expand.c | ||
| fault.c | ||
| fcin.c | ||
| init.c | ||
| io.c | ||
| jobs.c | ||
| lex.c | ||
| macro.c | ||
| main.c | ||
| name.c | ||
| nvdisc.c | ||
| nvtree.c | ||
| nvtype.c | ||
| parse.c | ||
| path.c | ||
| pmain.c | ||
| shcomp.c | ||
| streval.c | ||
| string.c | ||
| subshell.c | ||
| suid_exec.c | ||
| tdump.c | ||
| timers.c | ||
| trestore.c | ||
| waitevent.c | ||
| xec.c | ||