154359Sroberto/* 254359Sroberto * octtoint - convert an ascii string in octal to an unsigned 354359Sroberto * long, with error checking 454359Sroberto */ 5290000Sglebius#include <config.h> 654359Sroberto#include <stdio.h> 754359Sroberto#include <ctype.h> 854359Sroberto 954359Sroberto#include "ntp_stdlib.h" 1054359Sroberto 1154359Srobertoint 1254359Srobertoocttoint( 1354359Sroberto const char *str, 1454359Sroberto u_long *ival 1554359Sroberto ) 1654359Sroberto{ 1754359Sroberto register u_long u; 1854359Sroberto register const char *cp; 1954359Sroberto 2054359Sroberto cp = str; 2154359Sroberto 2254359Sroberto if (*cp == '\0') 2354359Sroberto return 0; 2454359Sroberto 2554359Sroberto u = 0; 2654359Sroberto while (*cp != '\0') { 27290000Sglebius if (!isdigit((unsigned char)*cp) || *cp == '8' || *cp == '9') 2854359Sroberto return 0; 2954359Sroberto if (u >= 0x20000000) 3054359Sroberto return 0; /* overflow */ 3154359Sroberto u <<= 3; 3254359Sroberto u += *cp++ - '0'; /* ascii dependent */ 3354359Sroberto } 3454359Sroberto *ival = u; 3554359Sroberto return 1; 3654359Sroberto} 37