diff options
Diffstat (limited to 'contrib/syslinux-4.02/gpxe/src/core/misc.c')
-rw-r--r-- | contrib/syslinux-4.02/gpxe/src/core/misc.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/gpxe/src/core/misc.c b/contrib/syslinux-4.02/gpxe/src/core/misc.c new file mode 100644 index 0000000..c19591b --- /dev/null +++ b/contrib/syslinux-4.02/gpxe/src/core/misc.c @@ -0,0 +1,80 @@ +/************************************************************************** +MISC Support Routines +**************************************************************************/ + +FILE_LICENCE ( GPL2_OR_LATER ); + +#include <stdlib.h> +#include <ctype.h> +#include <byteswap.h> +#include <gpxe/in.h> +#include <gpxe/timer.h> + +/************************************************************************** +INET_ATON - Convert an ascii x.x.x.x to binary form +**************************************************************************/ +int inet_aton ( const char *cp, struct in_addr *inp ) { + 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 ) { + 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 ); +} + +/* + * Local variables: + * c-basic-offset: 8 + * End: + */ |