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#include <stdio.h>
#ifdef SDBM
#include "sdbm.h"
#else
#include "ndbm.h"
#endif
void
oops(char *s1, char *s2)
{
extern int errno, sys_nerr;
extern char *sys_errlist[];
extern char *progname;
if (progname)
fprintf(stderr, "%s: ", progname);
fprintf(stderr, s1, s2);
if (errno > 0 && errno < sys_nerr)
fprintf(stderr, " (%s)", sys_errlist[errno]);
fprintf(stderr, "\n");
exit(1);
}
int
okpage(char *pag)
{
unsigned n;
int off;
short *ino = (short *) pag;
if ((n = ino[0]) > PBLKSIZ / sizeof(short))
return 0;
if (!n)
return 1;
off = PBLKSIZ;
for (ino++; n; ino += 2) {
if (ino[0] > off || ino[1] > off ||
ino[1] > ino[0])
return 0;
off = ino[1];
n -= 2;
}
return 1;
}
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