glibc/resolv/nsap_addr.c
Roland McGrath 3d61b63cc7 * asia, backward, europe, leapseconds, southamerica: New data from
ADO's 95e.

	* inet/Makefile (routines): Removed inet_addr.
	* inet/inet_addr.c: Moved to resolv/ subdirectory.
	* resolv/Makefile (routines): Added inet_addr.
	* resolv/inet_addr.c: Incorporated from BIND 4.9.3-BETA24 release.
	* resolv/gethnamaddr.c: Likewise.
	* resolv/getnetbyaddr.c: Likewise.
	* resolv/getnetbyname.c: Likewise.
	* resolv/getnetent.c: Likewise.
	* resolv/getnetnamadr.c: Likewise.
	* resolv/herror.c: Likewise.
	* resolv/nsap_addr.c: Likewise.
	* resolv/res_comp.c: Likewise.
	* resolv/res_debug.c: Likewise.
	* resolv/res_init.c: Likewise.
	* resolv/res_mkquery.c: Likewise.
	* resolv/res_query.c: Likewise.
	* resolv/res_send.c: Likewise.
	* resolv/resolv.h: Likewise.
	* resolv/sethostent.c: Likewise.
	* resolv/arpa/nameser.h: Likewise.
	* inet/netdb.h: Incorporated from BIND 4.9.3-BETA24 release.
	[__GNU_LIBRARY__]: Include <rpc/netdb.h> instead of repeating
	its declarations (and doing so only #ifdef sun!).

	* posix/sys/types.h [__USE_BSD] (__BIT_TYPES_DEFINED__): New macro.
	[__USE_BSD] [__GNUC__] (int64_t, u_int64_t, register_t): New typedefs.
1995-07-26 10:14:02 +00:00

97 lines
1.6 KiB
C

#if defined(LIBC_SCCS) && !defined(lint)
static char rcsid[] = "$Id$";
#endif /* LIBC_SCCS and not lint */
#include <sys/param.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/nameser.h>
#include <ctype.h>
#include <resolv.h>
#include "../conf/portability.h"
#if !defined(isxdigit) /* XXX - could be a function */
static int
isxdigit(c)
register int c;
{
return ((c >= '0') && (c <= '9')) || ((c >= 'A') && (c <= 'F'));
}
#endif
static char
xtob(c)
register int c;
{
return (c - (((c >= '0') && (c <= '9')) ? '0' : '7'));
}
u_int
inet_nsap_addr(ascii, binary, maxlen)
const char *ascii;
u_char *binary;
int maxlen;
{
register u_char c, nib;
u_int len = 0;
while ((c = *ascii++) != '\0' && len < maxlen) {
if (c == '.' || c == '+' || c == '/')
continue;
if (!isascii(c))
return (0);
if (islower(c))
c = toupper(c);
if (isxdigit(c)) {
nib = xtob(c);
if (c = *ascii++) {
c = toupper(c);
if (isxdigit(c)) {
*binary++ = (nib << 4) | xtob(c);
len++;
} else
return (0);
}
else
return (0);
}
else
return (0);
}
return (len);
}
char *
inet_nsap_ntoa(binlen, binary, ascii)
int binlen;
register const u_char *binary;
register char *ascii;
{
register int nib;
int i;
static char tmpbuf[255*3];
char *start;
if (ascii)
start = ascii;
else {
ascii = tmpbuf;
start = tmpbuf;
}
if (binlen > 255)
binlen = 255;
for (i = 0; i < binlen; i++) {
nib = *binary >> 4;
*ascii++ = nib + (nib < 10 ? '0' : '7');
nib = *binary++ & 0x0f;
*ascii++ = nib + (nib < 10 ? '0' : '7');
if (((i % 2) == 0 && (i + 1) < binlen))
*ascii++ = '.';
}
*ascii = '\0';
return (start);
}