diff options
Diffstat (limited to 'bin/sh/eval.c')
| -rw-r--r-- | bin/sh/eval.c | 46 |
1 files changed, 42 insertions, 4 deletions
diff --git a/bin/sh/eval.c b/bin/sh/eval.c index 199ec1e..e93fb14 100644 --- a/bin/sh/eval.c +++ b/bin/sh/eval.c @@ -91,6 +91,7 @@ STATIC void evalloop(union node *, int); STATIC void evalfor(union node *, int); STATIC void evalcase(union node *, int); STATIC void evalsubshell(union node *, int); +STATIC void evalredir(union node *, int); STATIC void expredir(union node *); STATIC void evalpipe(union node *); STATIC void evalcommand(union node *, int, struct backcmd *); @@ -221,10 +222,7 @@ evaltree(union node *n, int flags) evaltree(n->nbinary.ch2, flags); break; case NREDIR: - expredir(n->nredir.redirect); - redirect(n->nredir.redirect, REDIR_PUSH); - evaltree(n->nredir.n, flags); - popredir(); + evalredir(n, flags); break; case NSUBSHELL: evalsubshell(n, flags); @@ -415,6 +413,46 @@ evalsubshell(union node *n, int flags) } +/* + * Evaluate a redirected compound command. + */ + +STATIC void +evalredir(union node *n, int flags) +{ + struct jmploc jmploc; + struct jmploc *savehandler; + volatile int in_redirect = 1; + + expredir(n->nredir.redirect); + savehandler = handler; + if (setjmp(jmploc.loc)) { + int e; + + handler = savehandler; + e = exception; + if (e == EXERROR || e == EXEXEC) { + popredir(); + if (in_redirect) { + exitstatus = 2; + return; + } + } + longjmp(handler->loc, 1); + } else { + INTOFF; + handler = &jmploc; + redirect(n->nredir.redirect, REDIR_PUSH); + in_redirect = 0; + INTON; + evaltree(n->nredir.n, flags); + } + INTOFF; + handler = savehandler; + popredir(); + INTON; +} + /* * Compute the names of the files in a redirection list. |
