1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * Copyright (C) 1993-2001 by Darren Reed. 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * See the IPFILTER.LICENCE file for details on licencing. 5*7c478bd9Sstevel@tonic-gate * 6*7c478bd9Sstevel@tonic-gate * $Id: buildopts.c,v 1.6 2002/01/28 06:50:45 darrenr Exp $ 7*7c478bd9Sstevel@tonic-gate */ 8*7c478bd9Sstevel@tonic-gate 9*7c478bd9Sstevel@tonic-gate #include "ipf.h" 10*7c478bd9Sstevel@tonic-gate 11*7c478bd9Sstevel@tonic-gate 12*7c478bd9Sstevel@tonic-gate u_32_t buildopts(cp, op, len) 13*7c478bd9Sstevel@tonic-gate char *cp, *op; 14*7c478bd9Sstevel@tonic-gate int len; 15*7c478bd9Sstevel@tonic-gate { 16*7c478bd9Sstevel@tonic-gate struct ipopt_names *io; 17*7c478bd9Sstevel@tonic-gate u_32_t msk = 0; 18*7c478bd9Sstevel@tonic-gate char *s, *t; 19*7c478bd9Sstevel@tonic-gate int inc; 20*7c478bd9Sstevel@tonic-gate 21*7c478bd9Sstevel@tonic-gate for (s = strtok(cp, ","); s; s = strtok(NULL, ",")) { 22*7c478bd9Sstevel@tonic-gate if ((t = strchr(s, '='))) 23*7c478bd9Sstevel@tonic-gate *t++ = '\0'; 24*7c478bd9Sstevel@tonic-gate for (io = ionames; io->on_name; io++) { 25*7c478bd9Sstevel@tonic-gate if (strcasecmp(s, io->on_name) || (msk & io->on_bit)) 26*7c478bd9Sstevel@tonic-gate continue; 27*7c478bd9Sstevel@tonic-gate if ((inc = addipopt(op, io, len, t))) { 28*7c478bd9Sstevel@tonic-gate op += inc; 29*7c478bd9Sstevel@tonic-gate len += inc; 30*7c478bd9Sstevel@tonic-gate } 31*7c478bd9Sstevel@tonic-gate msk |= io->on_bit; 32*7c478bd9Sstevel@tonic-gate break; 33*7c478bd9Sstevel@tonic-gate } 34*7c478bd9Sstevel@tonic-gate if (!io->on_name) { 35*7c478bd9Sstevel@tonic-gate fprintf(stderr, "unknown IP option name %s\n", s); 36*7c478bd9Sstevel@tonic-gate return 0; 37*7c478bd9Sstevel@tonic-gate } 38*7c478bd9Sstevel@tonic-gate } 39*7c478bd9Sstevel@tonic-gate *op++ = IPOPT_EOL; 40*7c478bd9Sstevel@tonic-gate len++; 41*7c478bd9Sstevel@tonic-gate return len; 42*7c478bd9Sstevel@tonic-gate } 43