diff options
Diffstat (limited to 'usr.bin/rpcgen/rpc_svcout.c')
-rw-r--r-- | usr.bin/rpcgen/rpc_svcout.c | 1086 |
1 files changed, 1086 insertions, 0 deletions
diff --git a/usr.bin/rpcgen/rpc_svcout.c b/usr.bin/rpcgen/rpc_svcout.c new file mode 100644 index 0000000..cb26f22 --- /dev/null +++ b/usr.bin/rpcgen/rpc_svcout.c @@ -0,0 +1,1086 @@ +/* + * Sun RPC is a product of Sun Microsystems, Inc. and is provided for + * unrestricted use provided that this legend is included on all tape + * media and as a part of the software program in whole or part. Users + * may copy or modify Sun RPC without charge, but are not authorized + * to license or distribute it to anyone else except as part of a product or + * program developed by the user. + * + * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE + * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR + * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. + * + * Sun RPC is provided with no support and without any obligation on the + * part of Sun Microsystems, Inc. to assist in its use, correction, + * modification or enhancement. + * + * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE + * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC + * OR ANY PART THEREOF. + * + * In no event will Sun Microsystems, Inc. be liable for any lost revenue + * or profits or other special, indirect and consequential damages, even if + * Sun has been advised of the possibility of such damages. + * + * Sun Microsystems, Inc. + * 2550 Garcia Avenue + * Mountain View, California 94043 + */ + +#ident "@(#)rpc_svcout.c 1.4 90/04/13 SMI" + +#ifndef lint +static char sccsid[] = "@(#)rpc_svcout.c 1.29 89/03/30 (C) 1987 SMI"; +#endif + +/* + * rpc_svcout.c, Server-skeleton outputter for the RPC protocol compiler + * Copyright (C) 1987, Sun Microsystems, Inc. + */ +#include <stdio.h> +#include <string.h> +#include "rpc_parse.h" +#include "rpc_util.h" + +static char RQSTP[] = "rqstp"; +static char TRANSP[] = "transp"; +static char ARG[] = "argument"; +static char RESULT[] = "result"; +static char ROUTINE[] = "local"; +static char RETVAL[] = "retval"; + +char _errbuf[256]; /* For all messages */ + +void internal_proctype __P(( proc_list * )); +static void write_real_program __P(( definition * )); +static void write_program __P(( definition *, char * )); +static void printerr __P(( char *, char * )); +static void printif __P(( char *, char *, char *, char * )); +static void write_inetmost __P(( char * )); +static void print_return __P(( char * )); +static void print_pmapunset __P(( char * )); +static void print_err_message __P(( char * )); +static void write_timeout_func __P(( void )); +static void write_pm_most __P(( char *, int )); +static void write_rpc_svc_fg __P(( char *, char * )); +static void open_log_file __P(( char *, char * )); +static void write_msg_out __P(( void )); +int nullproc __P(( proc_list * )); + + +static void +p_xdrfunc(rname, typename) +char* rname; +char* typename; +{ + if (Cflag) + f_print(fout, "\t\txdr_%s = (xdrproc_t) xdr_%s;\n", + rname, stringfix(typename)); + else + f_print(fout, "\t\txdr_%s = xdr_%s;\n", + rname, stringfix(typename)); +} + +void +internal_proctype(plist) + proc_list *plist; +{ + f_print(fout, "static "); + ptype(plist->res_prefix, plist->res_type, 1); + f_print(fout, "*"); +} + + +/* + * write most of the service, that is, everything but the registrations. + */ +void +write_most(infile, netflag, nomain) + char *infile; /* our name */ + int netflag; + int nomain; +{ + if (inetdflag || pmflag) { + char* var_type; + var_type = (nomain? "extern" : "static"); + f_print(fout, "%s int _rpcpmstart;", var_type); + f_print(fout, "\t\t/* Started by a port monitor ? */\n"); + if (!tirpcflag) { + f_print(fout, "%s int _rpcfdtype;", var_type); + f_print(fout, "\n\t\t /* Whether Stream or \ +Datagram ? */\n"); + } + + if (timerflag) { + f_print(fout, " /* States a server can be in \ +wrt request */\n\n"); + f_print(fout, "#define\t_IDLE 0\n"); + f_print(fout, "#define\t_SERVED 1\n"); + f_print(fout, "#define\t_SERVING 2\n\n"); + f_print(fout, "static int _rpcsvcstate = _IDLE;"); + f_print(fout, "\t /* Set when a request is \ +serviced */\n"); + + if (mtflag) { + f_print(fout, "mutex_t _svcstate_lock;"); + f_print(fout, "\t\t\t/* Mutex lock for variable _rpcsvcstate */\n"); + + } + + } + + write_svc_aux(nomain); + } + /* write out dispatcher and stubs */ + write_programs(nomain? (char *)NULL : "static"); + + if (nomain) + return; + + f_print(fout, "\nmain()\n"); + f_print(fout, "{\n"); + if (inetdflag) { + write_inetmost(infile); + /* Includes call to write_rpc_svc_fg() */ + } else { + if (tirpcflag) { + if (netflag) { + f_print(fout, + "\tregister SVCXPRT *%s;\n", TRANSP); + f_print(fout, + "\tstruct netconfig *nconf = NULL;\n"); + } + f_print(fout, "\tpid_t pid;\n"); + f_print(fout, "\tint i;\n"); + f_print(fout, "\tchar mname[FMNAMESZ + 1];\n\n"); + + if (mtflag & timerflag) + f_print(fout, "\tmutex_init(&_svcstate_lock, USYNC_THREAD, NULL);\n"); + + write_pm_most(infile, netflag); + f_print(fout, "\telse {\n"); + write_rpc_svc_fg(infile, "\t\t"); + f_print(fout, "\t}\n"); + } else { + f_print(fout, "\tregister SVCXPRT *%s;\n", TRANSP); + f_print(fout, "\n"); + print_pmapunset("\t"); + } + } + + if (logflag && !inetdflag) { + open_log_file(infile, "\t"); + } +} + +/* + * write a registration for the given transport + */ +void +write_netid_register(transp) + char *transp; +{ + list *l; + definition *def; + version_list *vp; + char *sp; + char tmpbuf[32]; + + sp = ""; + f_print(fout, "\n"); + f_print(fout, "%s\tnconf = getnetconfigent(\"%s\");\n", sp, transp); + f_print(fout, "%s\tif (nconf == NULL) {\n", sp); + (void) sprintf(_errbuf, "cannot find %s netid.", transp); + sprintf(tmpbuf, "%s\t\t", sp); + print_err_message(tmpbuf); + f_print(fout, "%s\t\texit(1);\n", sp); + f_print(fout, "%s\t}\n", sp); + f_print(fout, "%s\t%s = svc_tli_create(RPC_ANYFD, nconf, 0, 0, 0);\n", + sp, TRANSP, transp); + f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP); + (void) sprintf(_errbuf, "cannot create %s service.", transp); + print_err_message(tmpbuf); + f_print(fout, "%s\t\texit(1);\n", sp); + f_print(fout, "%s\t}\n", sp); + + for (l = defined; l != NULL; l = l->next) { + def = (definition *) l->val; + if (def->def_kind != DEF_PROGRAM) { + continue; + } + for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { + f_print(fout, + "%s\t(void) rpcb_unset(%s, %s, nconf);\n", + sp, def->def_name, vp->vers_name); + f_print(fout, + "%s\tif (!svc_reg(%s, %s, %s, ", + sp, TRANSP, def->def_name, vp->vers_name); + pvname(def->def_name, vp->vers_num); + f_print(fout, ", nconf)) {\n"); + (void) sprintf(_errbuf, + "unable to register (%s, %s, %s).", + def->def_name, vp->vers_name, transp); + print_err_message(tmpbuf); + f_print(fout, "%s\t\texit(1);\n", sp); + f_print(fout, "%s\t}\n", sp); + } + } + f_print(fout, "%s\tfreenetconfigent(nconf);\n", sp); +} + +/* + * write a registration for the given transport for TLI + */ +void +write_nettype_register(transp) + char *transp; +{ + list *l; + definition *def; + version_list *vp; + + for (l = defined; l != NULL; l = l->next) { + def = (definition *) l->val; + if (def->def_kind != DEF_PROGRAM) { + continue; + } + for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { + f_print(fout, "\tif (!svc_create("); + pvname(def->def_name, vp->vers_num); + f_print(fout, ", %s, %s, \"%s\")) {\n", + def->def_name, vp->vers_name, transp); + (void) sprintf(_errbuf, + "unable to create (%s, %s) for %s.", + def->def_name, vp->vers_name, transp); + print_err_message("\t\t"); + f_print(fout, "\t\texit(1);\n"); + f_print(fout, "\t}\n"); + } + } +} + +/* + * write the rest of the service + */ +void +write_rest() +{ + f_print(fout, "\n"); + if (inetdflag) { + f_print(fout, "\tif (%s == (SVCXPRT *)NULL) {\n", TRANSP); + (void) sprintf(_errbuf, "could not create a handle"); + print_err_message("\t\t"); + f_print(fout, "\t\texit(1);\n"); + f_print(fout, "\t}\n"); + if (timerflag) { + f_print(fout, "\tif (_rpcpmstart) {\n"); + f_print(fout, + "\t\t(void) signal(SIGALRM, %s closedown);\n", + Cflag? "(SIG_PF)":"(void(*)())"); + f_print(fout, "\t\t(void) \ +alarm(_RPCSVC_CLOSEDOWN/2);\n"); + f_print(fout, "\t}\n"); + } + } + f_print(fout, "\tsvc_run();\n"); + (void) sprintf(_errbuf, "svc_run returned"); + print_err_message("\t"); + f_print(fout, "\texit(1);\n"); + f_print(fout, "\t/* NOTREACHED */\n"); + f_print(fout, "}\n"); +} + +void +write_programs(storage) + char *storage; +{ + list *l; + definition *def; + + /* write out stubs for procedure definitions */ + for (l = defined; l != NULL; l = l->next) { + def = (definition *) l->val; + if (def->def_kind == DEF_PROGRAM) { + write_real_program(def); + } + } + + /* write out dispatcher for each program */ + for (l = defined; l != NULL; l = l->next) { + def = (definition *) l->val; + if (def->def_kind == DEF_PROGRAM) { + write_program(def, storage); + } + } + + +} + +/* + * write out definition of internal function (e.g. _printmsg_1(...)) + * which calls server's defintion of actual function (e.g. printmsg_1(...)). + * Unpacks single user argument of printmsg_1 to call-by-value format + * expected by printmsg_1. + */ +static void +write_real_program(def) + definition *def; +{ + version_list *vp; + proc_list *proc; + decl_list *l; + + if (!newstyle) return; /* not needed for old style */ + for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { + for (proc = vp->procs; proc != NULL; proc = proc->next) { + f_print(fout, "\n"); + if (!mtflag) + internal_proctype(proc); + else + f_print(fout, "int"); + f_print(fout, "\n_"); + pvname(proc->proc_name, vp->vers_num); + if (Cflag) { + f_print(fout, "("); + /* arg name */ + if (proc->arg_num > 1) + f_print(fout, proc->args.argname); + else + ptype(proc->args.decls->decl.prefix, + proc->args.decls->decl.type, 0); + if (mtflag) { + f_print(fout, " *argp, void *%s, struct svc_req *%s)\n", + RESULT, RQSTP); + + + } + else + f_print(fout, " *argp, struct svc_req *%s)\n", + RQSTP); + + } else { + if (mtflag) + f_print(fout, "(argp, %s, %s)\n", RESULT, RQSTP); + else + f_print(fout, "(argp, %s)\n", RQSTP); + /* arg name */ + if (proc->arg_num > 1) + f_print(fout, "\t%s *argp;\n", + proc->args.argname); + else { + f_print(fout, "\t"); + ptype(proc->args.decls->decl.prefix, + proc->args.decls->decl.type, 0); + f_print(fout, " *argp;\n"); + } + if (mtflag) + f_print(fout, "\tvoid *%s;\n", RESULT); + f_print(fout, "\tstruct svc_req *%s;\n", RQSTP); + } + + f_print(fout, "{\n"); + f_print(fout, "\treturn ("); + if (Cflag || mtflag) /* for mtflag, arguments are different */ + pvname_svc(proc->proc_name, vp->vers_num); + else + pvname(proc->proc_name, vp->vers_num); + f_print(fout, "("); + if (proc->arg_num < 2) { /* single argument */ + if (!streq(proc->args.decls->decl.type, "void")) + f_print(fout, "*argp, "); /* non-void */ + } else { + for (l = proc->args.decls; l != NULL; + l = l->next) + f_print(fout, "argp->%s, ", + l->decl.name); + } + if (mtflag) + f_print(fout, "%s, ",RESULT); + f_print(fout, "%s));\n}\n", RQSTP); + } + } +} + +static void +write_program(def, storage) + definition *def; + char *storage; +{ + version_list *vp; + proc_list *proc; + int filled; + + for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { + f_print(fout, "\n"); + if (storage != NULL) { + f_print(fout, "%s ", storage); + } + f_print(fout, "void\n"); + pvname(def->def_name, vp->vers_num); + + if (Cflag) { + f_print(fout, "(struct svc_req *%s, ", RQSTP); + f_print(fout, "register SVCXPRT *%s)\n", TRANSP); + } else { + f_print(fout, "(%s, %s)\n", RQSTP, TRANSP); + f_print(fout, " struct svc_req *%s;\n", RQSTP); + f_print(fout, " register SVCXPRT *%s;\n", TRANSP); + } + + f_print(fout, "{\n"); + + filled = 0; + f_print(fout, "\tunion {\n"); + for (proc = vp->procs; proc != NULL; proc = proc->next) { + if (proc->arg_num < 2) { /* single argument */ + if (streq(proc->args.decls->decl.type, + "void")) { + continue; + } + filled = 1; + f_print(fout, "\t\t"); + ptype(proc->args.decls->decl.prefix, + proc->args.decls->decl.type, 0); + pvname(proc->proc_name, vp->vers_num); + f_print(fout, "_arg;\n"); + + } else { + filled = 1; + f_print(fout, "\t\t%s", proc->args.argname); + f_print(fout, " "); + pvname(proc->proc_name, vp->vers_num); + f_print(fout, "_arg;\n"); + } + } + if (!filled) { + f_print(fout, "\t\tint fill;\n"); + } + f_print(fout, "\t} %s;\n", ARG); + + if (mtflag) { + f_print(fout, "\tunion {\n"); + for (proc = vp->procs; proc != NULL; proc = proc->next) { + f_print(fout, "\t\t"); + ptype(proc->res_prefix, proc->res_type, 0); + pvname(proc->proc_name, vp->vers_num); + f_print(fout, "_res;\n"); + } + f_print(fout, "\t} %s;\n", RESULT); + f_print(fout, "\tbool_t %s;\n", RETVAL); + + } else + f_print(fout, "\tchar *%s;\n", RESULT); + + if (Cflag) { + f_print(fout, "\txdrproc_t xdr_%s, xdr_%s;\n", + ARG, RESULT); + if (mtflag) + f_print(fout, + "\tbool_t (*%s)(char *, void *, struct svc_req *);\n", + ROUTINE); + else + f_print(fout, + "\tchar *(*%s)(char *, struct svc_req *);\n", + ROUTINE); + } else { + f_print(fout, + "\tbool_t (*xdr_%s)(), (*xdr_%s)();\n", + ARG, RESULT); + if (mtflag) + f_print(fout, "\tbool_t (*%s)();\n", ROUTINE); + else + f_print(fout, "\tchar *(*%s)();\n", ROUTINE); + } + f_print(fout, "\n"); + + if (timerflag) { + if (mtflag) + f_print(fout, "\tmutex_lock(&_svcstate_lock);\n"); + + f_print(fout, "\t_rpcsvcstate = _SERVING;\n"); + if (mtflag) + f_print(fout, "\tmutex_unlock(&_svcstate_lock);\n"); + } + + f_print(fout, "\tswitch (%s->rq_proc) {\n", RQSTP); + if (!nullproc(vp->procs)) { + f_print(fout, "\tcase NULLPROC:\n"); + f_print(fout, + Cflag + ? "\t\t(void) svc_sendreply(%s,\n\t\t\t\ +(xdrproc_t) xdr_void, (char *)NULL);\n" + : "\t\t(void) svc_sendreply(%s, xdr_void,\n\t\t\t\ +(char *)NULL);\n", + TRANSP); + print_return("\t\t"); + f_print(fout, "\n"); + } + for (proc = vp->procs; proc != NULL; proc = proc->next) { + f_print(fout, "\tcase %s:\n", proc->proc_name); + if (proc->arg_num < 2) { /* single argument */ + p_xdrfunc(ARG, proc->args.decls->decl.type); + } else { + p_xdrfunc(ARG, proc->args.argname); + } + p_xdrfunc(RESULT, proc->res_type); + + if (Cflag) + if (mtflag) + f_print(fout, + "\t\t%s = (bool_t (*) (char *, void *, struct svc_req *))", + ROUTINE); + else + f_print(fout, + "\t\t%s = (char *(*)(char *, struct svc_req *)) ", + ROUTINE); + else + if (mtflag) + f_print(fout, "\t\t%s = (bool_t (*)()) ", + ROUTINE); + else + + f_print(fout, "\t\t%s = (char *(*)()) ", + ROUTINE); + if (newstyle) { /* new style: calls internal routine */ + f_print(fout, "_"); + } + if ((Cflag || mtflag) && !newstyle) + pvname_svc(proc->proc_name, vp->vers_num); + else + pvname(proc->proc_name, vp->vers_num); + f_print(fout, ";\n"); + f_print(fout, "\t\tbreak;\n\n"); + } + f_print(fout, "\tdefault:\n"); + printerr("noproc", TRANSP); + print_return("\t\t"); + f_print(fout, "\t}\n"); + + f_print(fout, + "\t(void) memset((char *)&%s, 0, sizeof (%s));\n", + ARG, ARG); + if (Cflag) + printif("getargs", TRANSP, "(caddr_t) &", ARG); + else + printif("getargs", TRANSP, "&", ARG); + printerr("decode", TRANSP); + print_return("\t\t"); + f_print(fout, "\t}\n"); + + if (!mtflag) + if (Cflag) + f_print(fout, "\t%s = (*%s)((char *)&%s, %s);\n", + RESULT, ROUTINE, ARG, RQSTP); + else + f_print(fout, "\t%s = (*%s)(&%s, %s);\n", + RESULT, ROUTINE, ARG, RQSTP); + else + if (Cflag) + f_print(fout, "\t%s = (bool_t) (*%s)((char *)&%s, (void *)&%s, %s);\n", + RETVAL, ROUTINE, ARG, RESULT, RQSTP); + else + f_print(fout, "\t%s = (bool_t) (*%s)(&%s, &%s, %s);\n", + RETVAL, ROUTINE, ARG, RESULT, RQSTP); + + + + + if (mtflag) + f_print(fout, + "\tif (%s > 0 && !svc_sendreply(%s, xdr_%s, (char *)&%s)) {\n", + RETVAL, TRANSP, RESULT, RESULT); + else + f_print(fout, + "\tif (%s != NULL && !svc_sendreply(%s, xdr_%s, %s)) {\n", + RESULT, TRANSP, RESULT, RESULT); + + printerr("systemerr", TRANSP); + f_print(fout, "\t}\n"); + + if (Cflag) + printif("freeargs", TRANSP, "(caddr_t) &", ARG); + else + printif("freeargs", TRANSP, "&", ARG); + (void) sprintf(_errbuf, "unable to free arguments"); + print_err_message("\t\t"); + f_print(fout, "\t\texit(1);\n"); + f_print(fout, "\t}\n"); + /* print out free routine */ + if (mtflag) { + f_print(fout,"\tif (!"); + pvname(def->def_name, vp->vers_num); + f_print(fout,"_freeresult(%s, xdr_%s, (caddr_t) &%s))\n", + TRANSP, RESULT, RESULT); + (void) sprintf(_errbuf, "unable to free results"); + print_err_message("\t\t"); + f_print(fout, "\n"); + }; + print_return("\t"); + f_print(fout, "}\n"); + } +} + +static void +printerr(err, transp) + char *err; + char *transp; +{ + f_print(fout, "\t\tsvcerr_%s(%s);\n", err, transp); +} + +static void +printif(proc, transp, prefix, arg) + char *proc; + char *transp; + char *prefix; + char *arg; +{ + f_print(fout, "\tif (!svc_%s(%s, xdr_%s, %s%s)) {\n", + proc, transp, arg, prefix, arg); +} + +int +nullproc(proc) + proc_list *proc; +{ + for (; proc != NULL; proc = proc->next) { + if (streq(proc->proc_num, "0")) { + return (1); + } + } + return (0); +} + +static void +write_inetmost(infile) + char *infile; +{ + f_print(fout, "\tregister SVCXPRT *%s;\n", TRANSP); + f_print(fout, "\tint sock;\n"); + f_print(fout, "\tint proto;\n"); + f_print(fout, "\tstruct sockaddr_in saddr;\n"); + f_print(fout, "\tint asize = sizeof (saddr);\n"); + f_print(fout, "\n"); + f_print(fout, + "\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n"); + f_print(fout, "\t\tint ssize = sizeof (int);\n\n"); + f_print(fout, "\t\tif (saddr.sin_family != AF_INET)\n"); + f_print(fout, "\t\t\texit(1);\n"); + f_print(fout, "\t\tif (getsockopt(0, SOL_SOCKET, SO_TYPE,\n"); + f_print(fout, "\t\t\t\t(char *)&_rpcfdtype, &ssize) == -1)\n"); + f_print(fout, "\t\t\texit(1);\n"); + f_print(fout, "\t\tsock = 0;\n"); + f_print(fout, "\t\t_rpcpmstart = 1;\n"); + f_print(fout, "\t\tproto = 0;\n"); + open_log_file(infile, "\t\t"); + f_print(fout, "\t} else {\n"); + write_rpc_svc_fg(infile, "\t\t"); + f_print(fout, "\t\tsock = RPC_ANYSOCK;\n"); + print_pmapunset("\t\t"); + f_print(fout, "\t}\n"); +} + +static void +print_return(space) + char *space; +{ + if (exitnow) + f_print(fout, "%sexit(0);\n", space); + else { + if (timerflag) { + if (mtflag) + f_print(fout, "%smutex_lock(&_svcstate_lock);\n", space); + f_print(fout, "%s_rpcsvcstate = _SERVED;\n", space); + if (mtflag) + f_print(fout, "%smutex_unlock(&_svcstate_lock);\n", space); + } + f_print(fout, "%sreturn;\n", space); + } +} + +static void +print_pmapunset(space) + char *space; +{ + list *l; + definition *def; + version_list *vp; + + for (l = defined; l != NULL; l = l->next) { + def = (definition *) l->val; + if (def->def_kind == DEF_PROGRAM) { + for (vp = def->def.pr.versions; vp != NULL; + vp = vp->next) { + f_print(fout, "%s(void) pmap_unset(%s, %s);\n", + space, def->def_name, vp->vers_name); + } + } + } +} + +static void +print_err_message(space) + char *space; +{ + if (logflag) + f_print(fout, "%ssyslog(LOG_ERR, \"%s\");\n", space, _errbuf); + else if (inetdflag || pmflag) + f_print(fout, "%s_msgout(\"%s\");\n", space, _errbuf); + else + f_print(fout, "%sfprintf(stderr, \"%s\");\n", space, _errbuf); +} + +/* + * Write the server auxiliary function (_msgout, timeout) + */ +void +write_svc_aux(nomain) + int nomain; +{ + if (!logflag) + write_msg_out(); + if (!nomain) + write_timeout_func(); +} + +/* + * Write the _msgout function + */ + +static void +write_msg_out(void) +{ + f_print(fout, "\n"); +/* + * Avoid making _msgout() static -- it's useful to have it visible + * in the toplevel RPC server code. + */ + f_print(fout, "static\n"); + + if (!Cflag) { + f_print(fout, "void _msgout(msg)\n"); + f_print(fout, "\tchar *msg;\n"); + } else { + f_print(fout, "void _msgout(char* msg)\n"); + } + f_print(fout, "{\n"); + f_print(fout, "#ifdef RPC_SVC_FG\n"); + if (inetdflag || pmflag) + f_print(fout, "\tif (_rpcpmstart)\n"); + f_print(fout, "\t\tsyslog(LOG_ERR, msg);\n"); + f_print(fout, "\telse\n"); + f_print(fout, + "\t\t(void) fprintf(stderr, \"%%s\\n\", msg);\n"); + f_print(fout, "#else\n"); + f_print(fout, "\tsyslog(LOG_ERR, msg);\n"); + f_print(fout, "#endif\n"); + f_print(fout, "}\n"); +} + +/* + * Write the timeout function + */ +static void +write_timeout_func(void) +{ + if (!timerflag) + return; + + f_print(fout, "\n"); + f_print(fout, "static void\n"); + if (!Cflag) { + f_print(fout, "closedown(sig)\n"); + f_print(fout, "\tint sig;\n"); + } else + f_print(fout, "closedown(int sig)\n"); + f_print(fout, "{\n"); + if (mtflag) + f_print(fout, "\tmutex_lock(&_svcstate_lock);\n"); + f_print(fout, "\tif (_rpcsvcstate == _IDLE) {\n"); + f_print(fout, "\t\textern fd_set svc_fdset;\n"); + f_print(fout, "\t\tstatic int size;\n"); + f_print(fout, "\t\tint i, openfd;\n"); + if (tirpcflag && pmflag) { + f_print(fout, "\t\tstruct t_info tinfo;\n\n"); + f_print(fout, + "\t\tif (!t_getinfo(0, &tinfo) && (tinfo.servtype == T_CLTS))\n"); + } else { + f_print(fout, "\n\t\tif (_rpcfdtype == SOCK_DGRAM)\n"); + } + f_print(fout, "\t\t\texit(0);\n"); + f_print(fout, "\t\tif (size == 0) {\n"); + if (tirpcflag) { + f_print(fout, "\t\t\tstruct rlimit rl;\n\n"); + f_print(fout, "\t\t\trl.rlim_max = 0;\n"); + f_print(fout, "\t\t\tgetrlimit(RLIMIT_NOFILE, &rl);\n"); + f_print(fout, "\t\t\tif ((size = rl.rlim_max) == 0) {\n"); + + if (mtflag) + f_print(fout, "\t\t\t\tmutex_unlock(&_svcstate_lock);\n"); + + f_print(fout, "\t\t\t\treturn;\n\t\t\t}\n"); + } else { + f_print(fout, "\t\t\tsize = getdtablesize();\n"); + } + f_print(fout, "\t\t}\n"); + f_print(fout, + "\t\tfor (i = 0, openfd = 0; i < size && openfd < 2; i++)\n"); + f_print(fout, "\t\t\tif (FD_ISSET(i, &svc_fdset))\n"); + f_print(fout, "\t\t\t\topenfd++;\n"); + f_print(fout, "\t\tif (openfd <= 1)\n"); + f_print(fout, "\t\t\texit(0);\n"); + f_print(fout, "\t}\n"); + f_print(fout, "\tif (_rpcsvcstate == _SERVED)\n"); + f_print(fout, "\t\t_rpcsvcstate = _IDLE;\n\n"); + if (mtflag) + f_print(fout, "\tmutex_unlock(&_svcstate_lock);\n"); + + f_print(fout, "\t(void) signal(SIGALRM, %s closedown);\n", + Cflag? "(SIG_PF)" : "(void(*)())"); + f_print(fout, "\t(void) alarm(_RPCSVC_CLOSEDOWN/2);\n"); + f_print(fout, "}\n"); + +} + +/* + * Write the most of port monitor support + */ +static void +write_pm_most(infile, netflag) + char *infile; + int netflag; +{ + list *l; + definition *def; + version_list *vp; + + f_print(fout, "\tif (!ioctl(0, I_LOOK, mname) &&\n"); + f_print(fout, "\t\t(!strcmp(mname, \"sockmod\") ||"); + f_print(fout, " !strcmp(mname, \"timod\"))) {\n"); + f_print(fout, "\t\tchar *netid;\n"); + if (!netflag) { /* Not included by -n option */ + f_print(fout, "\t\tstruct netconfig *nconf = NULL;\n"); + f_print(fout, "\t\tSVCXPRT *%s;\n", TRANSP); + } + if (timerflag) + f_print(fout, "\t\tint pmclose;\n"); +/* + * Not necessary, defined in /usr/include/stdlib + * f_print(fout, "\t\textern char *getenv();\n"); + */ + f_print(fout, "\n"); + f_print(fout, "\t\t_rpcpmstart = 1;\n"); + open_log_file(infile, "\t\t"); + f_print(fout, "\n\t\tif ((netid = \ +getenv(\"NLSPROVIDER\")) == NULL) {\n"); + + if (timerflag) { + f_print(fout, "\t\t/* started from inetd */\n"); + f_print(fout, "\t\t\tpmclose = 1;\n"); + } + f_print(fout, + "\t\t} else {\n"); + f_print(fout, "\t\t\tif ((nconf = getnetconfigent(netid)) == NULL)\n"); + sprintf(_errbuf, "cannot get transport info"); + print_err_message("\t\t\t\t"); + if (timerflag) + f_print(fout, "\n\t\t\tpmclose = \ +(t_getstate(0) != T_DATAXFER);\n"); + f_print(fout, "\t\t}\n"); + /* + * A kludgy support for inetd services. Inetd only works with + * sockmod, and RPC works only with timod, hence all this jugglery + */ + f_print(fout, "\t\tif (strcmp(mname, \"sockmod\") == 0) {\n"); + f_print(fout, + "\t\t\tif (ioctl(0, I_POP, 0) || \ +ioctl(0, I_PUSH, \"timod\")) {\n"); + sprintf(_errbuf, "could not get the right module"); + print_err_message("\t\t\t\t"); + f_print(fout, "\t\t\t\texit(1);\n"); + f_print(fout, "\t\t\t}\n"); + f_print(fout, "\t\t}\n"); + f_print(fout, + "\t\tif ((%s = svc_tli_create(0, nconf, NULL, 0, 0)) \ +== NULL) {\n", + TRANSP); + sprintf(_errbuf, "cannot create server handle"); + print_err_message("\t\t\t"); + f_print(fout, "\t\t\texit(1);\n"); + f_print(fout, "\t\t}\n"); + f_print(fout, "\t\tif (nconf)\n"); + f_print(fout, "\t\t\tfreenetconfigent(nconf);\n"); + for (l = defined; l != NULL; l = l->next) { + def = (definition *) l->val; + if (def->def_kind != DEF_PROGRAM) { + continue; + } + for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { + f_print(fout, + "\t\tif (!svc_reg(%s, %s, %s, ", + TRANSP, def->def_name, vp->vers_name); + pvname(def->def_name, vp->vers_num); + f_print(fout, ", 0)) {\n"); + (void) sprintf(_errbuf, "unable to register (%s, %s).", + def->def_name, vp->vers_name); + print_err_message("\t\t\t"); + f_print(fout, "\t\t\texit(1);\n"); + f_print(fout, "\t\t}\n"); + } + } + if (timerflag) { + f_print(fout, "\t\tif (pmclose) {\n"); + f_print(fout, "\t\t\t(void) signal(SIGALRM, %s closedown);\n", + Cflag? "(SIG_PF)" : "(void(*)())"); + f_print(fout, "\t\t\t(void) alarm(_RPCSVC_CLOSEDOWN/2);\n"); + f_print(fout, "\t\t}\n"); + } + f_print(fout, "\t\tsvc_run();\n"); + f_print(fout, "\t\texit(1);\n"); + f_print(fout, "\t\t/* NOTREACHED */\n"); + f_print(fout, "\t}"); +} + +/* + * Support for backgrounding the server if self started. + */ +static void +write_rpc_svc_fg(infile, sp) + char *infile; + char *sp; +{ + f_print(fout, "#ifndef RPC_SVC_FG\n"); + f_print(fout, "%sint size;\n", sp); + if (tirpcflag) + f_print(fout, "%sstruct rlimit rl;\n", sp); + if (inetdflag) + f_print(fout, "%sint pid, i;\n\n", sp); + f_print(fout, "%spid = fork();\n", sp); + f_print(fout, "%sif (pid < 0) {\n", sp); + f_print(fout, "%s\tperror(\"cannot fork\");\n", sp); + f_print(fout, "%s\texit(1);\n", sp); + f_print(fout, "%s}\n", sp); + f_print(fout, "%sif (pid)\n", sp); + f_print(fout, "%s\texit(0);\n", sp); + /* get number of file descriptors */ + if (tirpcflag) { + f_print(fout, "%srl.rlim_max = 0;\n", sp); + f_print(fout, "%sgetrlimit(RLIMIT_NOFILE, &rl);\n", sp); + f_print(fout, "%sif ((size = rl.rlim_max) == 0)\n", sp); + f_print(fout, "%s\texit(1);\n", sp); + } else { + f_print(fout, "%ssize = getdtablesize();\n", sp); + } + + f_print(fout, "%sfor (i = 0; i < size; i++)\n", sp); + f_print(fout, "%s\t(void) close(i);\n", sp); + /* Redirect stderr and stdout to console */ + f_print(fout, "%si = open(\"/dev/console\", 2);\n", sp); + f_print(fout, "%s(void) dup2(i, 1);\n", sp); + f_print(fout, "%s(void) dup2(i, 2);\n", sp); + /* This removes control of the controlling terminal */ + if (tirpcflag) + f_print(fout, "%ssetsid();\n", sp); + else { + f_print(fout, "%si = open(\"/dev/tty\", 2);\n", sp); + f_print(fout, "%sif (i >= 0) {\n", sp); + f_print(fout, + "%s\t(void) ioctl(i, TIOCNOTTY, (char *)NULL);\n", sp); + f_print(fout, "%s\t(void) close(i);\n", sp); + f_print(fout, "%s}\n", sp); + } + if (!logflag) + open_log_file(infile, sp); + f_print(fout, "#endif\n"); + if (logflag) + open_log_file(infile, sp); +} + +static void +open_log_file(infile, sp) + char *infile; + char *sp; +{ + char *s; + + s = strrchr(infile, '.'); + if (s) + *s = '\0'; + f_print(fout, "%sopenlog(\"%s\", LOG_PID, LOG_DAEMON);\n", sp, infile); + if (s) + *s = '.'; +} + + + + +/* + * write a registration for the given transport for Inetd + */ +void +write_inetd_register(transp) + char *transp; +{ + list *l; + definition *def; + version_list *vp; + char *sp; + int isudp; + char tmpbuf[32]; + + if (inetdflag) + sp = "\t"; + else + sp = ""; + if (streq(transp, "udp")) + isudp = 1; + else + isudp = 0; + f_print(fout, "\n"); + if (inetdflag) { + f_print(fout, + "\tif ((_rpcfdtype == 0) || (_rpcfdtype == %s)) {\n", + isudp ? "SOCK_DGRAM" : "SOCK_STREAM"); + } + f_print(fout, "%s\t%s = svc%s_create(%s", + sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK"); + if (!isudp) + f_print(fout, ", 0, 0"); + f_print(fout, ");\n"); + f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP); + (void) sprintf(_errbuf, "cannot create %s service.", transp); + (void) sprintf(tmpbuf, "%s\t\t", sp); + print_err_message(tmpbuf); + f_print(fout, "%s\t\texit(1);\n", sp); + f_print(fout, "%s\t}\n", sp); + + if (inetdflag) { + f_print(fout, "%s\tif (!_rpcpmstart)\n\t", sp); + f_print(fout, "%s\tproto = IPPROTO_%s;\n", + sp, isudp ? "UDP": "TCP"); + } + for (l = defined; l != NULL; l = l->next) { + def = (definition *) l->val; + if (def->def_kind != DEF_PROGRAM) { + continue; + } + for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { + f_print(fout, "%s\tif (!svc_register(%s, %s, %s, ", + sp, TRANSP, def->def_name, vp->vers_name); + pvname(def->def_name, vp->vers_num); + if (inetdflag) + f_print(fout, ", proto)) {\n"); + else + f_print(fout, ", IPPROTO_%s)) {\n", + isudp ? "UDP": "TCP"); + (void) sprintf(_errbuf, + "unable to register (%s, %s, %s).", + def->def_name, vp->vers_name, transp); + print_err_message(tmpbuf); + f_print(fout, "%s\t\texit(1);\n", sp); + f_print(fout, "%s\t}\n", sp); + } + } + if (inetdflag) + f_print(fout, "\t}\n"); +} |