diff options
Diffstat (limited to 'sys/cmd/rc/trap.c')
-rw-r--r-- | sys/cmd/rc/trap.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/sys/cmd/rc/trap.c b/sys/cmd/rc/trap.c new file mode 100644 index 0000000..a572cac --- /dev/null +++ b/sys/cmd/rc/trap.c @@ -0,0 +1,37 @@ +#include "rc.h" +#include "exec.h" +#include "fns.h" +#include "io.h" +extern char *Signame[]; + +void +dotrap(void) +{ + int i; + struct var *trapreq; + struct word *starval; + starval = vlook("*")->val; + while(ntrap) for(i = 0;i!=NSIG;i++) while(trap[i]){ + --trap[i]; + --ntrap; + if(getpid()!=mypid) Exit(getstatus()); + trapreq = vlook(Signame[i]); + if(trapreq->fn){ + start(trapreq->fn, trapreq->pc, (struct var *)0); + runq->local = newvar(strdup("*"), runq->local); + runq->local->val = copywords(starval, (struct word *)0); + runq->local->changed = 1; + runq->redir = runq->startredir = 0; + } + else if(i==SIGINT || i==SIGQUIT){ + /* + * run the stack down until we uncover the + * command reading loop. Xreturn will exit + * if there is none (i.e. if this is not + * an interactive rc.) + */ + while(!runq->iflag) Xreturn(); + } + else Exit(getstatus()); + } +} |