Re: "rc" shell maintainer?

[Vincent Broman <broman@nosc.mil>]

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I tried out rc-1.5b2 on my SunOS 4.1.3 (with most Sun patches) machine
and gcc-2.7.2, and I got a core dump during trip.  Any suggestions?

Program received signal SIGSEGV, Segmentation fault.
0xf773470c in malloc ()
(gdb) bt
#0  0xf773470c in malloc ()
#1  0xa55c in ealloc (n=12) at nalloc.c:115
#2  0x7398 in get_var_place (s=0xc8f8 "*", stack=TRUE) at hash.c:151
#3  0xc80c in varassign (name=0xc8f8 "*", def=0x1b814, stack=TRUE) at var.c:18
#4  0xcc18 in starassign (dollarzero=0x1b838 "", a=0x1b810, stack=TRUE)
    at var.c:143
#5  0x239c in funcall (av=0x1b800) at builtins.c:77
#6  0x3d0c in exec (s=0x2374, parent=TRUE) at exec.c:90
#7  0xd494 in walk (n=0x1b788, parent=TRUE) at walk.c:37
#8  0x8694 in doit (execit=TRUE) at input.c:296
#9  0x9fa4 in main (argc=2, argv=0xf7ffef4c, envp=0xf7ffef50) at main.c:98

This appears to bomb in malloc while the argument list is being set up
to execute "submatch 'umask bad' 'bad umask' 'bad umask'".
I have essentially no trouble on another SunOS 4.1.4 machine
with the same source code.
This problem occurs with readline, editline, or nothing added.
The following are the only local changes I've made.

- --- config.h.in.orig	Mon Jul  7 08:43:53 1997
+++ config.h.in	Wed Feb  4 15:40:59 1998
@@ -2,4 +2,5 @@
 #undef STDC_HEADERS
 
+#undef HAVE_SYS_TYPES_H
 #undef HAVE_SYS_RESOURCE_H
 #undef RLIMIT_NEEDS_KERNEL
- --- configure.in.orig	Mon Jul  7 08:43:53 1997
+++ configure.in	Wed Feb  4 16:48:10 1998
@@ -277,10 +277,14 @@
 AC_ARG_WITH(editline, [  --with-editline         Simmule Turner's line editing],
 	AC_CHECK_LIB(edit, readline,
- -		AC_DEFINE(READLINE) LIBS="$LIBS -ledit",
+		AC_DEFINE(READLINE)
+		LIBS="-ledit $LIBS",
 		AC_MSG_WARN(editline library not found)))
 
 AC_ARG_WITH(readline, [  --with-readline         Bloated GNU line editing],
+	AC_CHECK_LIB(termcap,tputs,LIBS="-ltermcap $LIBS",
+		AC_CHECK_LIB(ncurses,tputs,LIBS="-lncurses $LIBS"))
 	AC_CHECK_LIB(readline, readline,
- -		AC_DEFINE(READLINE) LIBS="$LIBS -lreadline -ltermcap",
+		AC_DEFINE(READLINE)
+		LIBS="-lreadline $LIBS",
 		AC_MSG_WARN(readline library not found)))
 
- --- which.c.orig	Mon Jul  7 08:43:53 1997
+++ which.c	Wed Feb  4 17:02:32 1998
@@ -20,5 +20,5 @@
 #define X_ALL (X_USR|X_GRP|X_OTH)
 
- -extern int stat(const char *, struct stat *);
+extern int stat(char *, struct stat *);
 
 static bool initialized = FALSE;
@@ -88,5 +88,5 @@
 		gid = getegid();
 #if HAVE_GETGROUPS
- -		ngroups = getgroups(0, (gid_t *)0);
+		ngroups = getgroups(0, (GETGROUPS_T *)0);
 		gidset = malloc(ngroups * sizeof(gid_t));
 		if (!gidset)


Vincent Broman,   code D712 Bayside
Space and Naval Warfare Systems Center, San Diego              (was NOSC, NRaD)
San Diego, CA  92152-6145,  USA                          Phone: +1 619 553 1641
Email: broman at spawar.navy.mil or nosc.mil      PGP protected mail preferred.

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