misc.c File Reference

#include <stdlib.h>
#include <ctype.h>
#include <byteswap.h>
#include <gpxe/in.h>
#include <gpxe/timer.h>

Go to the source code of this file.

Functions
	FILE_LICENCE (GPL2_OR_LATER)
int	inet_aton (const char *cp, struct in_addr *inp)
unsigned long	strtoul (const char *p, char **endp, int base)

---

Function Documentation

FILE_LICENCE

(

GPL2_OR_LATER

)

int inet_aton	(	const char *	cp,
		struct in_addr *	inp
	)

Definition at line 16 of file misc.c.

References htonl, in_addr::s_addr, and strtoul().

Referenced by numeric_resolv(), slam_parse_multicast_address(), storef_ipv4(), and tftp_process_multicast().

                                                      {
        const char *p = cp;
        const char *digits_start;
        unsigned long ip = 0;
        unsigned long val;
        int j;
        for(j = 0; j <= 3; j++) {
                digits_start = p;
                val = strtoul(p, ( char ** ) &p, 10);
                if ((p == digits_start) || (val > 255)) return 0;
                if ( ( j < 3 ) && ( *(p++) != '.' ) ) return 0;
                ip = (ip << 8) | val;
        }
        if ( *p == '\0' ) {
                inp->s_addr = htonl(ip);
                return 1;
        }
        return 0;
}

unsigned long strtoul	(	const char *	p,
		char **	endp,
		int	base
	)

Definition at line 36 of file misc.c.

References isspace().

Referenced by aoe_parse_root_path(), bzimage_parse_cmdline(), ftp_parse_value(), http_rx_content_length(), http_rx_response(), ib_srp_parse_byte_string(), ib_srp_parse_integer(), inet_aton(), iscsi_handle_chap_c_value(), iscsi_handle_chap_i_value(), iscsi_handle_chap_r_value(), iscsi_handle_targetaddress_value(), iscsi_parse_root_path(), mac_address_from_string_specs(), parse_setting_tag(), pxebs_exec(), scsi_parse_lun(), slam_parse_multicast_address(), sleep_exec(), storef_hex(), storef_int(), tftp_process_blksize(), tftp_process_multicast(), tftp_process_tsize(), uri_decode(), and uri_port().

                                                               {
        unsigned long ret = 0;
        unsigned int charval;

        while ( isspace ( *p ) )
                p++;

        if ( base == 0 ) {
                base = 10;
                if ( *p == '0' ) {
                        p++;
                        base = 8;
                        if ( ( *p | 0x20 ) == 'x' ) {
                                p++;
                                base = 16;
                        }
                }
        }

        while ( 1 ) {
                charval = *p;
                if ( charval >= 'a' ) {
                        charval = ( charval - 'a' + 10 );
                } else if ( charval >= 'A' ) {
                        charval = ( charval - 'A' + 10 );
                } else if ( charval <= '9' ) {
                        charval = ( charval - '0' );
                }
                if ( charval >= ( unsigned int ) base )
                        break;
                ret = ( ( ret * base ) + charval );
                p++;
        }

        if ( endp )
                *endp = ( char * ) p;

        return ( ret );
}