the lastbug fix?

4 files changed, 12 insertions, 9 deletions

diff --git a/src/cmd/mk/archive.c b/src/cmd/mk/archive.c
index 14d2082d..8edfdddc 100644
--- a/src/cmd/mk/archive.c
+++ b/src/cmd/mk/archive.c
@@ -17,7 +17,7 @@ struct	ar_hdr
 };
 #define	SAR_HDR	(SARNAME+44)
 
-static int dolong;
+static int dolong = 1;
 
 static void atimes(char *);
 static char *split(char*, char**);
@@ -154,7 +154,7 @@ atimes(char *ar)
 			goto skip;
 		}else if(strings && h.name[0]=='/' && isdigit(h.name[1])){
 			i = strtol(h.name+1, &p, 10);
-			if(*p != ' ' || strlen(strings) < i)
+			if(*p != ' ' || i >= strlen(strings))
 				goto skip;
 			p = strings+i;
 			for(; *p && *p != '/'; p++)
diff --git a/src/cmd/mk/graph.c b/src/cmd/mk/graph.c
index 58529259..fdb02881 100644
--- a/src/cmd/mk/graph.c
+++ b/src/cmd/mk/graph.c
@@ -180,7 +180,7 @@ dumpn(char *s, Node *n)
 	char buf[1024];
 	Arc *a;
 
-	sprint(buf, "%s   ", (*s == ' ')? s:"");
+	snprint(buf, sizeof buf, "%s   ", (*s == ' ')? s:"");
 	Bprint(&bout, "%s%s@%ld: time=%ld flags=0x%x next=%ld\n",
 		s, n->name, n, n->time, n->flags, n->next);
 	for(a = n->prereqs; a; a = a->next)
diff --git a/src/cmd/mk/mk.c b/src/cmd/mk/mk.c
index 37eb3511..9ab4c538 100644
--- a/src/cmd/mk/mk.c
+++ b/src/cmd/mk/mk.c
@@ -198,7 +198,7 @@ pcmp(char *prog, char *p, char *q)
 	int pid;
 
 	Bflush(&bout);
-	sprint(buf, "%s '%s' '%s'\n", prog, p, q);
+	snprint(buf, sizeof buf, "%s '%s' '%s'\n", prog, p, q);
 	pid = pipecmd(buf, 0, 0);
 	while(waitup(-3, &pid) >= 0)
 		;
@@ -214,7 +214,7 @@ outofdate(Node *node, Arc *arc, int eval)
 
 	str = 0;
 	if(arc->prog){
-		sprint(buf, "%s%c%s", node->name, 0377, arc->n->name);
+		snprint(buf, sizeof buf, "%s%c%s", node->name, 0377, arc->n->name);
 		sym = symlook(buf, S_OUTOFDATE, 0);
 		if(sym == 0 || eval){
 			if(sym == 0)
diff --git a/src/cmd/mk/unix.c b/src/cmd/mk/unix.c
index 8b7e9cb8..00bee01e 100644
--- a/src/cmd/mk/unix.c
+++ b/src/cmd/mk/unix.c
@@ -47,15 +47,15 @@ exportenv(Envy *e)
 {
 	int i;
 	char **p;
-	char buf[4096];
+	static char buf[16384];
 
 	p = 0;
 	for(i = 0; e->name; e++, i++) {
 		p = (char**) Realloc(p, (i+2)*sizeof(char*));
 		if(e->values)
-			sprint(buf, "%s=%s", e->name,  wtos(e->values, IWS));
+			snprint(buf, sizeof buf, "%s=%s", e->name,  wtos(e->values, IWS));
 		else
-			sprint(buf, "%s=", e->name);
+			snprint(buf, sizeof buf, "%s=", e->name);
 		p[i] = strdup(buf);
 	}
 	p[i] = 0;
@@ -91,6 +91,8 @@ expunge(int pid, char *msg)
 		kill(pid, SIGHUP);
 }
 
+int mypid;
+
 int
 execsh(char *args, char *cmd, Bufblock *buf, Envy *e)
 {
@@ -102,6 +104,7 @@ execsh(char *args, char *cmd, Bufblock *buf, Envy *e)
 		Exit();
 	}
 	pid = fork();
+	mypid = getpid();
 	if(pid < 0){
 		mkperror("mk fork");
 		Exit();
@@ -225,7 +228,7 @@ static	struct
 	SIGFPE,		"sys: fp: fptrap",
 	SIGPIPE,	"sys: write on closed pipe",
 	SIGILL,		"sys: trap: illegal instruction",
-	SIGSEGV,	"sys: segmentation violation",
+//	SIGSEGV,	"sys: segmentation violation",
 	0,		0
 };