Category : OS/2 Files
Archive : EMXTST8F.ZIP
Filename : MEMTEST.C
Output of file : MEMTEST.C contained in archive : EMXTST8F.ZIP
#include
#include
#include
#define N 4
static char *check[] =
{
"ok", "empty", "bad begin", "bad node", "bad end", "bad rover"
};
int main (void)
{
char buf[256], *p;
void *table[N], *v;
int idx;
int i, n;
for (i = 0; i < N; ++i)
table[i] = NULL;
idx = 0;
for (;;)
{
n = (int)sbrk (0);
printf ("sbrk = 0x%x\n", n);
for (i = 0; i < N; ++i)
{
if (i == idx) putchar ('*');
printf ("%d:0x%x ", i, (int)table[i]);
}
printf ("\n? ");
if (fgets (buf, sizeof (buf), stdin) == NULL)
return (0);
p = strchr (buf, '\n');
if (p != NULL) *p = 0;
if (buf[0] == '?')
{
puts ("? help");
puts ("q quit");
puts ("f free");
puts ("c check");
puts ("t exception");
puts ("r# realloc(#)");
puts ("# malloc(#)");
puts (" next slot");
}
else if (buf[0] == 'q')
return (0);
else if (buf[0] == 'f')
{
printf ("free\n");
free (table[idx]); table[idx] = NULL;
}
else if (buf[0] == 'c')
printf ("%s\n", check[_heapset ('/')]);
else if (buf[0] == 't')
{
/* provoke exception */
char *x;
x = (char *)0x12345678;
++*x;
}
else if (buf[0] == 0)
idx = (idx+1)%N;
else
{
p = buf;
if (*p == 'r')
++p;
i = atoi (p);
if (buf[0] == 'r')
v = realloc (table[idx], i);
else
v = malloc (i);
if (v == NULL)
printf ("%s() failed\n", (buf[0] == 'r' ? "realloc" : "malloc"));
else
{
if ((long)v & 3)
printf ("Wrong alignment!\n");
table[idx] = v;
memset (v, '*', i);
}
}
}
}
Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!
This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.
But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/