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author | cvpcs <root@cvpcs.org> | 2010-06-03 02:20:07 -0500 |
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committer | cvpcs <root@cvpcs.org> | 2010-06-03 02:20:07 -0500 |
commit | a013d4e66d2545c04e2599aa2e4a4fc50468153d (patch) | |
tree | 415d0a5af06f28f3e3b6b389ff6818e3ee774ff8 /builtins/suspend.c | |
parent | 772f20abb0a3a0979c440114bf3a1cff5b3cef03 (diff) | |
download | external_bash-a013d4e66d2545c04e2599aa2e4a4fc50468153d.zip external_bash-a013d4e66d2545c04e2599aa2e4a4fc50468153d.tar.gz external_bash-a013d4e66d2545c04e2599aa2e4a4fc50468153d.tar.bz2 |
first successful build of bash-4.1
Diffstat (limited to 'builtins/suspend.c')
-rw-r--r-- | builtins/suspend.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/builtins/suspend.c b/builtins/suspend.c new file mode 100644 index 0000000..93ce68e --- /dev/null +++ b/builtins/suspend.c @@ -0,0 +1,94 @@ +/* suspend.c, created from suspend.def. */ +#line 22 "./suspend.def" + +#line 38 "./suspend.def" + +#include <config.h> + +#if defined (JOB_CONTROL) +#if defined (HAVE_UNISTD_H) +# ifdef _MINIX +# include <sys/types.h> +# endif +# include <unistd.h> +#endif + +#include "../bashtypes.h" +#include <signal.h> +#include "../bashintl.h" +#include "../shell.h" +#include "../jobs.h" +#include "common.h" +#include "bashgetopt.h" + +static sighandler suspend_continue __P((int)); + +static SigHandler *old_cont; +#if 0 +static SigHandler *old_stop; +#endif + +/* Continue handler. */ +static sighandler +suspend_continue (sig) + int sig; +{ + set_signal_handler (SIGCONT, old_cont); +#if 0 + set_signal_handler (SIGSTOP, old_stop); +#endif + SIGRETURN (0); +} + +/* Suspending the shell. If -f is the arg, then do the suspend + no matter what. Otherwise, complain if a login shell. */ +int +suspend_builtin (list) + WORD_LIST *list; +{ + int opt, force; + + reset_internal_getopt (); + force = 0; + while ((opt = internal_getopt (list, "f")) != -1) + switch (opt) + { + case 'f': + force++; + break; + default: + builtin_usage (); + return (EX_USAGE); + } + + list = loptend; + + if (job_control == 0) + { + sh_nojobs (_("cannot suspend")); + return (EXECUTION_FAILURE); + } + + if (force == 0) + { + no_args (list); + + if (login_shell) + { + builtin_error (_("cannot suspend a login shell")); + return (EXECUTION_FAILURE); + } + } + + /* XXX - should we put ourselves back into the original pgrp now? If so, + call end_job_control() here and do the right thing in suspend_continue + (that is, call restart_job_control()). */ + old_cont = (SigHandler *)set_signal_handler (SIGCONT, suspend_continue); +#if 0 + old_stop = (SigHandler *)set_signal_handler (SIGSTOP, SIG_DFL); +#endif + killpg (shell_pgrp, SIGSTOP); + return (EXECUTION_SUCCESS); +} + +#endif /* JOB_CONTROL */ |