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/* octtoint.c,v 3.1 1993/07/06 01:08:41 jbj Exp
* octtoint - convert an ascii string in octal to an unsigned
* long, with error checking
*/
#include <stdio.h>
#include <ctype.h>
#include "ntp_stdlib.h"
int
octtoint(str, ival)
const char *str;
U_LONG *ival;
{
register U_LONG u;
register const char *cp;
cp = str;
if (*cp == '\0')
return 0;
u = 0;
while (*cp != '\0') {
if (!isdigit(*cp) || *cp == '8' || *cp == '9')
return 0;
if (u >= 0x20000000)
return 0; /* overflow */
u <<= 3;
u += *cp++ - '0'; /* ascii dependent */
}
*ival = u;
return 1;
}
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