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Add a guarded abort() for the problem in PR bin/7059 (no fix so far,

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this is hairy).

Reformat this file to comply to style(9). It had mixed styles before.

PR:		bin/7059
This commit is contained in:
Martin Cracauer 1999-04-12 14:23:36 +00:00
parent 7a19b7ed76
commit 9d5efc1507
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=45618
1 changed files with 33 additions and 17 deletions
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50
bin/sh/memalloc.c
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@ -39,7 +39,7 @@
static char sccsid[] = "@(#)memalloc.c 8.3 (Berkeley) 5/4/95";
#endif
static const char rcsid[] =
"$Id: memalloc.c,v 1.11 1998/09/10 14:51:06 cracauer Exp $";
"$Id: memalloc.c,v 1.12 1998/09/13 19:24:57 tegge Exp $";
#endif /* not lint */
#include "shell.h"
@ -77,7 +77,6 @@ ckrealloc(p, nbytes)
pointer p;
int nbytes;
{
if ((p = realloc(p, nbytes)) == NULL)
error("Out of space");
return p;
@ -91,7 +90,7 @@ ckrealloc(p, nbytes)
char *
savestr(s)
char *s;
{
{
char *p;
p = ckmalloc(strlen(s) + 1);
@ -141,7 +140,8 @@ stalloc(nbytes)
if (blocksize < MINSIZE)
blocksize = MINSIZE;
INTOFF;
sp = ckmalloc(sizeof(struct stack_block) - MINSIZE + blocksize);
sp = ckmalloc(sizeof(struct stack_block) - MINSIZE +
blocksize);
sp->prev = stackp;
stacknxt = sp->space;
stacknleft = blocksize;
@ -158,7 +158,7 @@ stalloc(nbytes)
void
stunalloc(p)
pointer p;
{
{
if (p == NULL) { /*DEBUG */
write(2, "stunalloc\n", 10);
abort();
@ -172,7 +172,7 @@ stunalloc(p)
void
setstackmark(mark)
struct stackmark *mark;
{
{
mark->stackp = stackp;
mark->stacknxt = stacknxt;
mark->stacknleft = stacknleft;
@ -182,11 +182,15 @@ setstackmark(mark)
void
popstackmark(mark)
struct stackmark *mark;
{
{
struct stack_block *sp;
INTOFF;
while (stackp != mark->stackp) {
if (stackp == NULL) {
write(2, "Oops, stackp deleted\n", 21);
abort();
}
sp = stackp;
stackp = sp->prev;
ckfree(sp);
@ -208,18 +212,24 @@ popstackmark(mark)
*/
void
growstackblock() {
growstackblock()
{
char *p;
int newlen = ALIGN(stacknleft * 2 + 100);
char *oldspace = stacknxt;
int oldlen = stacknleft;
int newlen;
char *oldspace;
int oldlen;
struct stack_block *sp;
newlen = ALIGN(stacknleft * 2 + 100);
oldspace = stacknxt;
oldlen = stacknleft;
if (stacknxt == stackp->space && stackp != &stackbase) {
INTOFF;
sp = stackp;
stackp = sp->prev;
sp = ckrealloc((pointer)sp, sizeof(struct stack_block) - MINSIZE + newlen);
sp = ckrealloc((pointer)sp, sizeof(struct stack_block) -
MINSIZE + newlen);
sp->prev = stackp;
stackp = sp;
stacknxt = sp->space;
@ -266,8 +276,11 @@ grabstackblock(len)
char *
growstackstr() {
int len = stackblocksize();
growstackstr()
{
int len;
len = stackblocksize();
if (herefd >= 0 && len >= 1024) {
xwrite(herefd, stackblock(), len);
sstrnleft = len - 1;
@ -284,8 +297,11 @@ growstackstr() {
*/
char *
makestrspace() {
int len = stackblocksize() - sstrnleft;
makestrspace()
{
int len;
len = stackblocksize() - sstrnleft;
growstackblock();
sstrnleft = stackblocksize() - len;
return stackblock() + len;
@ -297,7 +313,7 @@ void
ungrabstackstr(s, p)
char *s;
char *p;
{
{
stacknleft += stacknxt - s;
stacknxt = s;
sstrnleft = stacknleft - (p - s);