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-rw-r--r--src/eval.c12
-rw-r--r--src/init.h1
-rw-r--r--src/input.c26
-rw-r--r--src/input.h1
-rw-r--r--src/jobs.c4
-rw-r--r--src/main.c9
-rw-r--r--src/main.h1
-rw-r--r--src/memalloc.h1
-rw-r--r--src/mkinit.c6
-rw-r--r--src/redir.c4
-rw-r--r--src/redir.h1
-rw-r--r--src/trap.c44
-rw-r--r--src/trap.h1
13 files changed, 54 insertions, 57 deletions
diff --git a/src/eval.c b/src/eval.c
index 6ee2e1a..1b5d61d 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -41,6 +41,7 @@
  * Evaluate a command.
  */
 
+#include "init.h"
 #include "main.h"
 #include "shell.h"
 #include "nodes.h"
@@ -483,17 +484,18 @@ evalsubshell(union node *n, int flags)
 		lineno -= funcline - 1;
 
 	expredir(n->nredir.redirect);
-	if (!backgnd && flags & EV_EXIT && !have_traps())
-		goto nofork;
 	INTOFF;
+	if (!backgnd && flags & EV_EXIT && !have_traps()) {
+		forkreset();
+		goto nofork;
+	}
 	jp = makejob(n, 1);
 	if (forkshell(jp, n, backgnd) == 0) {
-		INTON;
 		flags |= EV_EXIT;
 		if (backgnd)
 			flags &=~ EV_TESTED;
 nofork:
-		reset_handler();
+		INTON;
 		redirect(n->nredir.redirect, 0);
 		evaltreenr(n->nredir.n, flags);
 		/* never returns */
@@ -576,7 +578,6 @@ evalpipe(union node *n, int flags)
 			}
 		}
 		if (forkshell(jp, lp->n, n->npipe.backgnd) == 0) {
-			reset_handler();
 			INTON;
 			if (pip[1] >= 0) {
 				close(pip[0]);
@@ -633,7 +634,6 @@ evalbackcmd(union node *n, struct backcmd *result)
 		sh_error("Pipe call failed");
 	jp = makejob(n, 1);
 	if (forkshell(jp, n, FORK_NOJOB) == 0) {
-		reset_handler();
 		FORCEINTON;
 		close(pip[0]);
 		if (pip[1] != 1) {
diff --git a/src/init.h b/src/init.h
index 49791a0..d56fb28 100644
--- a/src/init.h
+++ b/src/init.h
@@ -36,4 +36,5 @@
 
 void init(void);
 void exitreset(void);
+void forkreset(void);
 void reset(void);
diff --git a/src/input.c b/src/input.c
index ae0c4c8..177fd0a 100644
--- a/src/input.c
+++ b/src/input.c
@@ -78,6 +78,7 @@ static int preadbuffer(void);
 
 #ifdef mkinit
 INCLUDE <stdio.h>
+INCLUDE <unistd.h>
 INCLUDE "input.h"
 INCLUDE "error.h"
 
@@ -91,6 +92,14 @@ RESET {
 	basepf.lleft = basepf.nleft = 0;
 	popallfiles();
 }
+
+FORKRESET {
+	popallfiles();
+	if (parsefile->fd > 0) {
+		close(parsefile->fd);
+		parsefile->fd = 0;
+	}
+}
 #endif
 
 
@@ -495,20 +504,3 @@ popallfiles(void)
 {
 	unwindfiles(&basepf);
 }
-
-
-
-/*
- * Close the file(s) that the shell is reading commands from.  Called
- * after a fork is done.
- */
-
-void
-closescript(void)
-{
-	popallfiles();
-	if (parsefile->fd > 0) {
-		close(parsefile->fd);
-		parsefile->fd = 0;
-	}
-}
diff --git a/src/input.h b/src/input.h
index a9c0517..8acc6e9 100644
--- a/src/input.h
+++ b/src/input.h
@@ -99,4 +99,3 @@ void setinputstring(char *);
 void popfile(void);
 void unwindfiles(struct parsefile *);
 void popallfiles(void);
-void closescript(void);
diff --git a/src/jobs.c b/src/jobs.c
index 26a6248..f377d8c 100644
--- a/src/jobs.c
+++ b/src/jobs.c
@@ -55,6 +55,7 @@
 #endif
 #include "exec.h"
 #include "eval.h"
+#include "init.h"
 #include "redir.h"
 #include "show.h"
 #include "main.h"
@@ -857,8 +858,7 @@ static void forkchild(struct job *jp, union node *n, int mode)
 	if (!lvforked) {
 		shlvl++;
 
-		closescript();
-		clear_traps();
+		forkreset();
 
 #if JOBS
 		/* do job control only in root shell */
diff --git a/src/main.c b/src/main.c
index b2712cb..36431fc 100644
--- a/src/main.c
+++ b/src/main.c
@@ -71,7 +71,7 @@ int *dash_errno;
 short profile_buf[16384];
 extern int etext();
 #endif
-static struct jmploc main_handler;
+MKINIT struct jmploc main_handler;
 
 STATIC void read_profile(const char *);
 STATIC char *find_dot_file(char *);
@@ -354,7 +354,10 @@ exitcmd(int argc, char **argv)
 	/* NOTREACHED */
 }
 
-void reset_handler(void)
-{
+#ifdef mkinit
+INCLUDE "error.h"
+
+FORKRESET {
 	handler = &main_handler;
 }
+#endif
diff --git a/src/main.h b/src/main.h
index 51f1604..19e4983 100644
--- a/src/main.h
+++ b/src/main.h
@@ -52,4 +52,3 @@ extern int *dash_errno;
 void readcmdfile(char *);
 int dotcmd(int, char **);
 int exitcmd(int, char **);
-void reset_handler(void);
diff --git a/src/memalloc.h b/src/memalloc.h
index b9c63da..b9adf76 100644
--- a/src/memalloc.h
+++ b/src/memalloc.h
@@ -35,6 +35,7 @@
  */
 
 #include <stddef.h>
+#include <stdlib.h>
 
 struct stackmark {
 	struct stack_block *stackp;
diff --git a/src/mkinit.c b/src/mkinit.c
index 5bca9ee..9025862 100644
--- a/src/mkinit.c
+++ b/src/mkinit.c
@@ -113,6 +113,11 @@ char exitreset[] = "\
  * but prior to exitshell. \n\
  */\n";
 
+char forkreset[] = "\
+/*\n\
+ * This routine is called when we enter a subshell.\n\
+ */\n";
+
 char reset[] = "\
 /*\n\
  * This routine is called when an error or an interrupt occurs in an\n\
@@ -123,6 +128,7 @@ char reset[] = "\
 struct event event[] = {
 	{"INIT", "init", init},
 	{"EXITRESET", "exitreset", exitreset},
+	{"FORKRESET", "forkreset", forkreset},
 	{"RESET", "reset", reset},
 	{NULL, NULL}
 };
diff --git a/src/redir.c b/src/redir.c
index 6c81dd0..895140c 100644
--- a/src/redir.c
+++ b/src/redir.c
@@ -401,6 +401,10 @@ EXITRESET {
 	unwindredir(0);
 }
 
+FORKRESET {
+	redirlist = NULL;
+}
+
 #endif
 
 
diff --git a/src/redir.h b/src/redir.h
index 8e56995..1cf2761 100644
--- a/src/redir.h
+++ b/src/redir.h
@@ -45,7 +45,6 @@ struct redirtab;
 union node;
 void redirect(union node *, int);
 void popredir(int);
-void clearredir(void);
 int savefd(int, int);
 int redirectsafe(union node *, int);
 void unwindredir(struct redirtab *stop);
diff --git a/src/trap.c b/src/trap.c
index 58a7c60..82e7ece 100644
--- a/src/trap.c
+++ b/src/trap.c
@@ -66,7 +66,7 @@
 
 
 /* trap handler commands */
-static char *trap[NSIG];
+MKINIT char *trap[NSIG];
 /* number of non-null traps */
 int trapcnt;
 /* current value of signal */
@@ -83,11 +83,29 @@ extern char *signal_names[];
 static int decode_signum(const char *);
 
 #ifdef mkinit
+INCLUDE "memalloc.h"
 INCLUDE "trap.h"
+
 INIT {
 	sigmode[SIGCHLD - 1] = S_DFL;
 	setsignal(SIGCHLD);
 }
+
+FORKRESET {
+	char **tp;
+
+	INTOFF;
+	for (tp = trap ; tp < &trap[NSIG] ; tp++) {
+		if (*tp && **tp) {	/* trap not NULL or SIG_IGN */
+			ckfree(*tp);
+			*tp = NULL;
+			if (tp != &trap[0])
+				setsignal(tp - trap);
+		}
+	}
+	trapcnt = 0;
+	INTON;
+}
 #endif
 
 /*
@@ -151,30 +169,6 @@ trapcmd(int argc, char **argv)
 
 
 /*
- * Clear traps on a fork.
- */
-
-void
-clear_traps(void)
-{
-	char **tp;
-
-	INTOFF;
-	for (tp = trap ; tp < &trap[NSIG] ; tp++) {
-		if (*tp && **tp) {	/* trap not NULL or SIG_IGN */
-			ckfree(*tp);
-			*tp = NULL;
-			if (tp != &trap[0])
-				setsignal(tp - trap);
-		}
-	}
-	trapcnt = 0;
-	INTON;
-}
-
-
-
-/*
  * Set the signal handler for the specified signal.  The routine figures
  * out what it should be set to.
  */
diff --git a/src/trap.h b/src/trap.h
index 5fd65af..4c455a8 100644
--- a/src/trap.h
+++ b/src/trap.h
@@ -42,7 +42,6 @@ extern volatile sig_atomic_t pending_sig;
 extern int gotsigchld;
 
 int trapcmd(int, char **);
-void clear_traps(void);
 void setsignal(int);
 void ignoresig(int);
 void onsig(int);
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-06-26 11:47:45 +0000