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| author | Peter Stephenson <p.w.stephenson@ntlworld.com> | 2020-02-27 20:42:16 +0000 |
|---|---|---|
| committer | Peter Stephenson <p.w.stephenson@ntlworld.com> | 2020-02-27 20:42:16 +0000 |
| commit | 14ea665a903b26a658ef1d2ca974a9b48e09eff1 (patch) | |
| tree | 443a5225cfac4052123b81c4d7c5b7ee5a5220c7 /Src | |
| parent | fe516fccb4754833f850cb62f6607226370bbf53 (diff) | |
| download | zsh-14ea665a903b26a658ef1d2ca974a9b48e09eff1.tar.gz zsh-14ea665a903b26a658ef1d2ca974a9b48e09eff1.tar.xz zsh-14ea665a903b26a658ef1d2ca974a9b48e09eff1.zip | |
users/24710: Fix job control problem with sudo.
If we use kill to test for continued existence of a process group, we should check on failure that the error is ESRCH, as EPERM indicates the group still has memebers but running privileged so should be left alone.
Diffstat (limited to 'Src')
| -rw-r--r-- | Src/exec.c | 3 | ||||
| -rw-r--r-- | Src/jobs.c | 14 | ||||
| -rw-r--r-- | Src/signals.c | 3 |
3 files changed, 14 insertions, 6 deletions
diff --git a/Src/exec.c b/Src/exec.c index 50027654a..cf99051f0 100644 --- a/Src/exec.c +++ b/Src/exec.c @@ -1036,7 +1036,8 @@ entersubsh(int flags, struct entersubsh_ret *retp) } else if (thisjob != -1 && (flags & ESUB_PGRP)) { if (jobtab[list_pipe_job].gleader && (list_pipe || list_pipe_child)) { if (setpgrp(0L, jobtab[list_pipe_job].gleader) == -1 || - killpg(jobtab[list_pipe_job].gleader, 0) == -1) { + (killpg(jobtab[list_pipe_job].gleader, 0) == -1 && + errno == ESRCH)) { jobtab[list_pipe_job].gleader = jobtab[thisjob].gleader = (list_pipe_child ? mypgrp : getpid()); setpgrp(0L, jobtab[list_pipe_job].gleader); diff --git a/Src/jobs.c b/Src/jobs.c index 0485f2c7c..8353f1152 100644 --- a/Src/jobs.c +++ b/Src/jobs.c @@ -283,7 +283,8 @@ handle_sub(int job, int fg) if ((cp = ((WIFEXITED(jn->procs->status) || WIFSIGNALED(jn->procs->status)) && - killpg(jn->gleader, 0) == -1))) { + (killpg(jn->gleader, 0) == -1 && + errno == ESRCH)))) { Process p; for (p = jn->procs; p->next; p = p->next); jn->gleader = p->pid; @@ -541,9 +542,13 @@ update_job(Job jn) /* is this job in the foreground of an interactive shell? */ if (mypgrp != pgrp && inforeground && - (jn->gleader == pgrp || (pgrp > 1 && kill(-pgrp, 0) == -1))) { + (jn->gleader == pgrp || + (pgrp > 1 && + (kill(-pgrp, 0) == -1 && errno == ESRCH)))) { if (list_pipe) { - if (somestopped || (pgrp > 1 && kill(-pgrp, 0) == -1)) { + if (somestopped || (pgrp > 1 && + kill(-pgrp, 0) == -1 && + errno == ESRCH)) { attachtty(mypgrp); /* check window size and adjust if necessary */ adjustwinsize(0); @@ -2470,7 +2475,8 @@ bin_fg(char *name, char **argv, Options ops, int func) if ((jobtab[job].stat & STAT_SUPERJOB) && ((!jobtab[job].procs->next || (jobtab[job].stat & STAT_SUBLEADER) || - killpg(jobtab[job].gleader, 0) == -1)) && + (killpg(jobtab[job].gleader, 0) == -1 && + errno == ESRCH))) && jobtab[jobtab[job].other].gleader) attachtty(jobtab[jobtab[job].other].gleader); else diff --git a/Src/signals.c b/Src/signals.c index 96ff9e9b3..4adf03202 100644 --- a/Src/signals.c +++ b/Src/signals.c @@ -539,7 +539,8 @@ wait_for_processes(void) #endif if (WIFEXITED(status) && pn->pid == jn->gleader && - killpg(pn->pid, 0) == -1) { + killpg(pn->pid, 0) == -1 && + errno == ESRCH) { if (last_attached_pgrp == jn->gleader && !(jn->stat & STAT_NOSTTY)) { /* |