61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
/**************************************************************************
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MISC Support Routines
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**************************************************************************/
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FILE_LICENCE ( GPL2_OR_LATER );
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#include <stdlib.h>
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#include <ctype.h>
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#include <byteswap.h>
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#include <ipxe/in.h>
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#include <ipxe/timer.h>
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/**************************************************************************
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INET_ATON - Convert an ascii x.x.x.x to binary form
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**************************************************************************/
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int inet_aton ( const char *cp, struct in_addr *inp ) {
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const char *p = cp;
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const char *digits_start;
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unsigned long ip = 0;
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unsigned long val;
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int j;
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for(j = 0; j <= 3; j++) {
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digits_start = p;
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val = strtoul(p, ( char ** ) &p, 10);
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if ((p == digits_start) || (val > 255)) return 0;
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if ( ( j < 3 ) && ( *(p++) != '.' ) ) return 0;
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ip = (ip << 8) | val;
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}
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if ( *p == '\0' ) {
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inp->s_addr = htonl(ip);
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return 1;
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}
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return 0;
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}
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unsigned long strtoul ( const char *p, char **endp, int base ) {
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unsigned long ret = 0;
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unsigned int charval;
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base = strtoul_base ( &p, base );
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while ( 1 ) {
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charval = strtoul_charval ( *p );
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if ( charval >= ( unsigned int ) base )
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break;
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ret = ( ( ret * base ) + charval );
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p++;
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}
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if ( endp )
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*endp = ( char * ) p;
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return ( ret );
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}
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/*
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* Local variables:
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* c-basic-offset: 8
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* End:
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*/
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