1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Generic network code. Moved from net.c 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Copyright 1994 - 2000 Neil Russell. 5*4882a593Smuzhiyun * Copyright 2000 Roland Borde 6*4882a593Smuzhiyun * Copyright 2000 Paolo Scaffardi 7*4882a593Smuzhiyun * Copyright 2000-2002 Wolfgang Denk, wd@denx.de 8*4882a593Smuzhiyun * Copyright 2009 Dirk Behme, dirk.behme@googlemail.com 9*4882a593Smuzhiyun * 10*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 11*4882a593Smuzhiyun */ 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #include <common.h> 14*4882a593Smuzhiyun string_to_ip(const char * s)15*4882a593Smuzhiyunstruct in_addr string_to_ip(const char *s) 16*4882a593Smuzhiyun { 17*4882a593Smuzhiyun struct in_addr addr; 18*4882a593Smuzhiyun char *e; 19*4882a593Smuzhiyun int i; 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun addr.s_addr = 0; 22*4882a593Smuzhiyun if (s == NULL) 23*4882a593Smuzhiyun return addr; 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun for (addr.s_addr = 0, i = 0; i < 4; ++i) { 26*4882a593Smuzhiyun ulong val = s ? simple_strtoul(s, &e, 10) : 0; 27*4882a593Smuzhiyun if (val > 255) { 28*4882a593Smuzhiyun addr.s_addr = 0; 29*4882a593Smuzhiyun return addr; 30*4882a593Smuzhiyun } 31*4882a593Smuzhiyun if (i != 3 && *e != '.') { 32*4882a593Smuzhiyun addr.s_addr = 0; 33*4882a593Smuzhiyun return addr; 34*4882a593Smuzhiyun } 35*4882a593Smuzhiyun addr.s_addr <<= 8; 36*4882a593Smuzhiyun addr.s_addr |= (val & 0xFF); 37*4882a593Smuzhiyun if (s) { 38*4882a593Smuzhiyun s = (*e) ? e+1 : e; 39*4882a593Smuzhiyun } 40*4882a593Smuzhiyun } 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun addr.s_addr = htonl(addr.s_addr); 43*4882a593Smuzhiyun return addr; 44*4882a593Smuzhiyun } 45