63 lines
1.1 KiB
C
63 lines
1.1 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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unsigned int strtoul_charval ( unsigned int charval ) {
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if ( charval >= 'a' ) {
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charval = ( charval - 'a' + 10 );
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} else if ( charval >= 'A' ) {
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charval = ( charval - 'A' + 10 );
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} else if ( charval <= '9' ) {
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charval = ( charval - '0' );
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}
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return charval;
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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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int negative = 0;
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unsigned int charval;
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while ( isspace ( *p ) )
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p++;
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if ( *p == '-' ) {
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negative = 1;
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p++;
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}
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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 ( negative )
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ret = -ret;
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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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