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