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[/] [or1k/] [tags/] [initial/] [uclinux/] [uC-libc/] [net/] [addr.c] - Rev 811
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/* Copyright (C) 1995,1996 Robert de Bath <rdebath@cix.compulink.co.uk> * This file is part of the Linux-8086 C library and is distributed * under the GNU Library General Public License. */ #include <string.h> #include <ctype.h> #include <netinet/in.h> #ifdef L_inet_aton int inet_aton(cp, inp) const char *cp; struct in_addr *inp; { unsigned long addr; int value; int part; if (!inp) return 0; addr = 0; for (part=1;part<=4;part++) { if (!isdigit(*cp)) return 0; value = 0; while (isdigit(*cp)) { value *= 10; value += *cp++ - '0'; if (value > 255) return 0; } if (*cp++ != ((part == 4) ? '\0' : '.')) return 0; addr <<= 8; addr |= value; } inp->s_addr = htonl(addr); return 1; } #endif #ifdef L_inet_addr unsigned long inet_addr(cp) const char *cp; { struct in_addr a; if (!inet_aton(cp, &a)) return -1; else return a.s_addr; } #endif #ifdef L_inet_ntoa extern char * itoa(int); char * inet_ntoa(in) struct in_addr in; { static char buf[18]; unsigned long addr = ntohl(in.s_addr); strcpy(buf, itoa((addr >> 24) & 0xff)); strcat(buf, "."); strcat(buf, itoa((addr >> 16) & 0xff)); strcat(buf, "."); strcat(buf, itoa((addr >> 8) & 0xff)); strcat(buf, "."); strcat(buf, itoa(addr & 0xff)); return buf; } #endif
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