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-rw-r--r--tools/rpcgen/rpc_sample.c336
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+/*
+ * From: @(#)rpc_sample.c 1.1 90/08/30
+ *
+ * Copyright (c) 2010, Oracle America, Inc.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ * * Neither the name of the "Oracle America, Inc." nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * rpc_sample.c, Sample client-server code outputter for the RPC protocol compiler
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include "rpc_parse.h"
+#include "rpc_util.h"
+#include "proto.h"
+
+
+static const char RQSTP[] = "rqstp";
+
+static void write_sample_client (const char *program_name, version_list * vp);
+static void write_sample_server (definition * def);
+static void return_type (proc_list * plist);
+
+
+void
+write_sample_svc (definition * def)
+{
+
+ if (def->def_kind != DEF_PROGRAM)
+ return;
+ write_sample_server (def);
+}
+
+
+int
+write_sample_clnt (definition * def)
+{
+ version_list *vp;
+ int count = 0;
+
+ if (def->def_kind != DEF_PROGRAM)
+ return 0;
+ /* generate sample code for each version */
+ for (vp = def->def.pr.versions; vp != NULL; vp = vp->next)
+ {
+ write_sample_client (def->def_name, vp);
+ ++count;
+ }
+ return count;
+}
+
+
+static void
+write_sample_client (const char *program_name, version_list * vp)
+{
+ proc_list *proc;
+ int i;
+ decl_list *l;
+
+ f_print (fout, "\n\nvoid\n");
+ pvname (program_name, vp->vers_num);
+ if (Cflag)
+ f_print (fout, "(char *host)\n{\n");
+ else
+ f_print (fout, "(host)\nchar *host;\n{\n");
+ f_print (fout, "\tCLIENT *clnt;\n");
+
+ i = 0;
+ for (proc = vp->procs; proc != NULL; proc = proc->next)
+ {
+ f_print (fout, "\t");
+ ++i;
+ if (mtflag)
+ {
+ f_print (fout, "enum clnt_stat retval_%d;\n\t", i);
+ ptype (proc->res_prefix, proc->res_type, 1);
+ if (!streq (proc->res_type, "void"))
+ f_print (fout, "result_%d;\n", i);
+ else
+ fprintf (fout, "*result_%d;\n", i);
+ }
+ else
+ {
+ ptype (proc->res_prefix, proc->res_type, 1);
+ f_print (fout, " *result_%d;\n", i);
+ }
+ /* print out declarations for arguments */
+ if (proc->arg_num < 2 && !newstyle)
+ {
+ f_print (fout, "\t");
+ if (!streq (proc->args.decls->decl.type, "void"))
+ {
+ ptype (proc->args.decls->decl.prefix,
+ proc->args.decls->decl.type, 1);
+ f_print (fout, " ");
+ }
+ else
+ f_print (fout, "char *"); /* cannot have "void" type */
+ pvname (proc->proc_name, vp->vers_num);
+ f_print (fout, "_arg;\n");
+ }
+ else if (!streq (proc->args.decls->decl.type, "void"))
+ {
+ for (l = proc->args.decls; l != NULL; l = l->next)
+ {
+ f_print (fout, "\t");
+ ptype (l->decl.prefix, l->decl.type, 1);
+ if (strcmp (l->decl.type, "string") == 1)
+ f_print (fout, " ");
+ pvname (proc->proc_name, vp->vers_num);
+ f_print (fout, "_%s;\n", l->decl.name);
+ }
+ }
+ }
+
+ /* generate creation of client handle */
+ f_print(fout, "\n#ifndef\tDEBUG\n");
+ f_print (fout, "\tclnt = clnt_create (host, %s, %s, \"%s\");\n",
+ program_name, vp->vers_name, tirpcflag ? "netpath" : "udp");
+ f_print (fout, "\tif (clnt == NULL) {\n");
+ f_print (fout, "\t\tclnt_pcreateerror (host);\n");
+ f_print (fout, "\t\texit (1);\n\t}\n");
+ f_print(fout, "#endif\t/* DEBUG */\n\n");
+
+ /* generate calls to procedures */
+ i = 0;
+ for (proc = vp->procs; proc != NULL; proc = proc->next)
+ {
+ if (mtflag)
+ f_print(fout, "\tretval_%d = ",++i);
+ else
+ f_print (fout, "\tresult_%d = ", ++i);
+ pvname (proc->proc_name, vp->vers_num);
+ if (proc->arg_num < 2 && !newstyle)
+ {
+ f_print (fout, "(");
+ if (streq (proc->args.decls->decl.type, "void"))/* cast to void* */
+ f_print (fout, "(void*)");
+ f_print (fout, "&");
+ pvname (proc->proc_name, vp->vers_num);
+ if (mtflag)
+ f_print(fout, "_arg, &result_%d, clnt);\n", i);
+ else
+ f_print (fout, "_arg, clnt);\n");
+ }
+ else if (streq (proc->args.decls->decl.type, "void"))
+ {
+ if (mtflag)
+ f_print (fout, "(&result_%d, clnt);\n", i);
+ else
+ f_print (fout, "(clnt);\n");
+ }
+ else
+ {
+ f_print (fout, "(");
+ for (l = proc->args.decls; l != NULL; l = l->next)
+ {
+ pvname (proc->proc_name, vp->vers_num);
+ f_print (fout, "_%s, ", l->decl.name);
+ }
+ if (mtflag)
+ f_print(fout, "&result_%d, ", i);
+ f_print (fout, "clnt);\n");
+ }
+ if (mtflag)
+ {
+ f_print(fout, "\tif (retval_%d != RPC_SUCCESS) {\n", i);
+ }
+ else
+ {
+ f_print(fout, "\tif (result_%d == (", i);
+ ptype(proc->res_prefix, proc->res_type, 1);
+ f_print(fout, "*) NULL) {\n");
+ }
+ f_print(fout, "\t\tclnt_perror (clnt, \"call failed\");\n");
+ f_print(fout, "\t}\n");
+ }
+
+ f_print (fout, "#ifndef\tDEBUG\n");
+ f_print (fout, "\tclnt_destroy (clnt);\n");
+ f_print (fout, "#endif\t /* DEBUG */\n");
+ f_print (fout, "}\n");
+}
+
+static void
+write_sample_server (definition * def)
+{
+ version_list *vp;
+ proc_list *proc;
+
+ 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)
+ {
+ return_type (proc);
+ f_print (fout, "*\n");
+ }
+ else
+ f_print (fout, "bool_t\n");
+ if (Cflag || mtflag)
+ pvname_svc (proc->proc_name, vp->vers_num);
+ else
+ pvname(proc->proc_name, vp->vers_num);
+ printarglist(proc, "result", RQSTP, "struct svc_req *");
+ f_print(fout, "{\n");
+ if (!mtflag)
+ {
+ f_print(fout, "\tstatic ");
+ if(!streq(proc->res_type, "void"))
+ return_type(proc);
+ else
+ f_print(fout, "char *");
+ /* cannot have void type */
+ /* f_print(fout, " result;\n", proc->res_type); */
+ f_print(fout, " result;\n");
+ }
+ else
+ f_print(fout, "\tbool_t retval;\n");
+ fprintf (fout, "\n\t/*\n\t * insert server code here\n\t */\n\n");
+
+ if (!mtflag)
+ {
+ if (!streq(proc->res_type, "void"))
+ f_print(fout, "\treturn &result;\n}\n");
+ else /* cast back to void * */
+ f_print(fout, "\treturn (void *) &result;\n}\n");
+ }
+ else
+ f_print(fout, "\treturn retval;\n}\n");
+ }
+
+ /* put in sample freeing routine */
+ if (mtflag)
+ {
+ f_print(fout, "\nint\n");
+ pvname(def->def_name, vp->vers_num);
+ if (Cflag)
+ f_print(fout,"_freeresult (SVCXPRT *transp, xdrproc_t xdr_result, caddr_t result)\n");
+ else
+ {
+ f_print(fout,"_freeresult (transp, xdr_result, result)\n");
+ f_print(fout,"\tSVCXPRT *transp;\n");
+ f_print(fout,"\txdrproc_t xdr_result;\n");
+ f_print(fout,"\tcaddr_t result;\n");
+ }
+ f_print(fout, "{\n");
+ f_print(fout, "\txdr_free (xdr_result, result);\n");
+ f_print(fout,
+ "\n\t/*\n\t * Insert additional freeing code here, if needed\n\t */\n");
+ f_print(fout, "\n\treturn 1;\n}\n");
+ }
+ }
+}
+
+
+
+static void
+return_type (proc_list * plist)
+{
+ ptype (plist->res_prefix, plist->res_type, 1);
+}
+
+void
+add_sample_msg (void)
+{
+ f_print (fout, "/*\n");
+ f_print (fout, " * This is sample code generated by rpcgen.\n");
+ f_print (fout, " * These are only templates and you can use them\n");
+ f_print (fout, " * as a guideline for developing your own functions.\n");
+ f_print (fout, " */\n\n");
+}
+
+void
+write_sample_clnt_main (void)
+{
+ list *l;
+ definition *def;
+ version_list *vp;
+
+ f_print (fout, "\n\n");
+ if (Cflag)
+ f_print (fout, "int\nmain (int argc, char *argv[])\n{\n");
+ else
+ f_print (fout, "int\nmain (argc, argv)\nint argc;\nchar *argv[];\n{\n");
+
+ f_print (fout, "\tchar *host;");
+ f_print (fout, "\n\n\tif (argc < 2) {");
+ f_print (fout, "\n\t\tprintf (\"usage: %%s server_host\\n\", argv[0]);\n");
+ f_print (fout, "\t\texit (1);\n\t}");
+ f_print (fout, "\n\thost = argv[1];\n");
+
+ for (l = defined; l != NULL; l = l->next)
+ {
+ def = l->val;
+ if (def->def_kind != DEF_PROGRAM)
+ {
+ continue;
+ }
+ for (vp = def->def.pr.versions; vp != NULL; vp = vp->next)
+ {
+ f_print (fout, "\t");
+ pvname (def->def_name, vp->vers_num);
+ f_print (fout, " (host);\n");
+ }
+ }
+ f_print (fout, "exit (0);\n}\n");
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-12 03:14:01 +0000