tools/rpcgen/rpc_cout.c

   1 /*
   2  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
   3  * unrestricted use provided that this legend is included on all tape
   4  * media and as a part of the software program in whole or part.  Users
   5  * may copy or modify Sun RPC without charge, but are not authorized
   6  * to license or distribute it to anyone else except as part of a product or
   7  * program developed by the user or with the express written consent of
   8  * Sun Microsystems, Inc.
   9  *
  10  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  11  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  12  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
  13  *
  14  * Sun RPC is provided with no support and without any obligation on the
  15  * part of Sun Microsystems, Inc. to assist in its use, correction,
  16  * modification or enhancement.
  17  *
  18  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  19  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  20  * OR ANY PART THEREOF.
  21  *
  22  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  23  * or profits or other special, indirect and consequential damages, even if
  24  * Sun has been advised of the possibility of such damages.
  25  *
  26  * Sun Microsystems, Inc.
  27  * 2550 Garcia Avenue
  28  * Mountain View, California  94043
  29  */
  30
  31 #if 0
  32 static char sccsid[] = "@(#)rpc_cout.c 1.13 89/02/22 (C) 1987 SMI";
  33 #endif
  34
  35 /*
  36  * rpc_cout.c, XDR routine outputter for the RPC protocol compiler
  37  */
  38 #include <stdio.h>
  39 #include <string.h>
  40 #include <stdlib.h>
  41 #include <malloc.h>
  42 #include <ctype.h>
  43 #include "rpc_parse.h"
  44 #include "rpc_util.h"
  45
  46 static int      findtype(definition *def, char *type);
  47 static int      undefined(char *type);
  48 static void     print_generic_header(char *procname, int pointerp);
  49 static void     print_header(definition *def);
  50 static void     print_prog_header(proc_list *plist);
  51 static void     print_trailer(void);
  52 static void     print_ifopen(int indent, char *name);
  53 static void     print_ifarg(char *arg);
  54 static void     print_ifsizeof(char *prefix, char *type);
  55 static void     print_ifclose(int indent);
  56 static void     print_ifstat(int indent, char *prefix, char *type, relation rel,
  57                         char *amax, char *objname, char *name);
  58 static void     emit_enum(definition *def);
  59 static void     emit_program(definition *def);
  60 static void     emit_union(definition *def);
  61 static void     emit_struct(definition *def);
  62 static void     emit_typedef(definition *def);
  63 static void     print_stat(int indent, declaration *dec);
  64 static void     emit_inline(declaration *decl, int flag);
  65 static void     emit_single_in_line(declaration *decl, int flag, relation rel);
  66 static char *   upcase(char *str);
  67
  68 /*
  69  * Emit the C-routine for the given definition
  70  */
  71 void
  72 emit(definition *def)
  73 {
  74         if (def->def_kind == DEF_CONST) {
  75                 return;
  76         }
  77         if (def->def_kind == DEF_PROGRAM) {
  78                 emit_program(def);
  79                 return;
  80         }
  81         if (def->def_kind == DEF_TYPEDEF) {
  82                 /* now we need to handle declarations like
  83                  * struct typedef foo foo;
  84                  * since we dont want this to be expanded into 2 calls
  85                  * to xdr_foo */
  86
  87                 if (strcmp(def->def.ty.old_type, def->def_name) == 0)
  88                         return;
  89         };
  90
  91         print_header(def);
  92         switch (def->def_kind) {
  93         case DEF_UNION:
  94                 emit_union(def);
  95                 break;
  96         case DEF_ENUM:
  97                 emit_enum(def);
  98                 break;
  99         case DEF_STRUCT:
 100                 emit_struct(def);
 101                 break;
 102         case DEF_TYPEDEF:
 103                 emit_typedef(def);
 104                 break;
 105         default:
 106                 break;
 107         }
 108         print_trailer();
 109 }
 110
 111 static int
 112 findtype(definition *def, char *type)
 113 {
 114
 115         if (def->def_kind == DEF_PROGRAM || def->def_kind == DEF_CONST) {
 116                 return (0);
 117         } else {
 118                 return (streq(def->def_name, type));
 119         }
 120 }
 121
 122 static int
 123 undefined(char *type)
 124 {
 125         definition     *def;
 126
 127         def = (definition *) FINDVAL(defined, type, findtype);
 128
 129         return (def == NULL);
 130 }
 131
 132
 133 static void
 134 print_generic_header(char *procname, int pointerp)
 135 {
 136         f_print(fout, "\n");
 137         f_print(fout, "bool_t\n");
 138         if (Cflag) {
 139                 f_print(fout, "xdr_%s(", procname);
 140                 f_print(fout, "XDR *xdrs, ");
 141                 f_print(fout, "%s ", procname);
 142                 if (pointerp)
 143                         f_print(fout, "*");
 144                 f_print(fout, "objp)\n{\n\n");
 145         } else {
 146                 f_print(fout, "xdr_%s(xdrs, objp)\n", procname);
 147                 f_print(fout, "\tXDR *xdrs;\n");
 148                 f_print(fout, "\t%s ", procname);
 149                 if (pointerp)
 150                         f_print(fout, "*");
 151                 f_print(fout, "objp;\n{\n\n");
 152         }
 153 }
 154
 155 static void
 156 print_header(definition *def)
 157 {
 158         print_generic_header(def->def_name,
 159                 def->def_kind != DEF_TYPEDEF ||
 160                 !isvectordef(def->def.ty.old_type, def->def.ty.rel));
 161
 162         /* Now add Inline support */
 163
 164
 165         if (Inline == 0)
 166                 return;
 167 }
 168
 169 static void
 170 print_prog_header(proc_list *plist)
 171 {
 172         print_generic_header(plist->args.argname, 1);
 173 }
 174
 175 static void
 176 print_trailer(void)
 177 {
 178         f_print(fout, "\treturn (TRUE);\n");
 179         f_print(fout, "}\n");
 180 }
 181
 182
 183 static void
 184 print_ifopen(int indent, char *name)
 185 {
 186         tabify(fout, indent);
 187         f_print(fout, " if (!xdr_%s(xdrs", name);
 188 }
 189
 190 static void
 191 print_ifarg(char *arg)
 192 {
 193         f_print(fout, ", %s", arg);
 194 }
 195
 196 static void
 197 print_ifsizeof(char *prefix, char *type)
 198 {
 199         if (streq(type, "bool")) {
 200                 f_print(fout, ", sizeof(bool_t), (xdrproc_t)xdr_bool");
 201         } else {
 202                 f_print(fout, ", sizeof(");
 203                 if (undefined(type) && prefix) {
 204                         f_print(fout, "%s ", prefix);
 205                 }
 206                 f_print(fout, "%s), (xdrproc_t)xdr_%s", type, type);
 207         }
 208 }
 209
 210 static void
 211 print_ifclose(int indent)
 212 {
 213         f_print(fout, ")) {\n");
 214         tabify(fout, indent);
 215         f_print(fout, "\t return (FALSE);\n");
 216         tabify(fout, indent);
 217         f_print(fout, " }\n");
 218 }
 219
 220 static void
 221 print_ifstat(int indent, char *prefix, char *type, relation rel,
 222                         char *amax, char *objname, char *name)
 223 {
 224         char *alt = NULL;
 225
 226         switch (rel) {
 227         case REL_POINTER:
 228                 print_ifopen(indent, "pointer");
 229                 print_ifarg("(char **)");
 230                 f_print(fout, "%s", objname);
 231                 print_ifsizeof(prefix, type);
 232                 break;
 233         case REL_VECTOR:
 234                 if (streq(type, "string")) {
 235                         alt = "string";
 236                 } else if (streq(type, "opaque")) {
 237                         alt = "opaque";
 238                 }
 239                 if (alt) {
 240                         print_ifopen(indent, alt);
 241                         print_ifarg(objname);
 242                 } else {
 243                         print_ifopen(indent, "vector");
 244                         print_ifarg("(char *)");
 245                         f_print(fout, "%s", objname);
 246                 }
 247                 print_ifarg(amax);
 248                 if (!alt) {
 249                         print_ifsizeof(prefix, type);
 250                 }
 251                 break;
 252         case REL_ARRAY:
 253                 if (streq(type, "string")) {
 254                         alt = "string";
 255                 } else if (streq(type, "opaque")) {
 256                         alt = "bytes";
 257                 }
 258                 if (streq(type, "string")) {
 259                         print_ifopen(indent, alt);
 260                         print_ifarg(objname);
 261                 } else {
 262                         if (alt) {
 263                                 print_ifopen(indent, alt);
 264                         } else {
 265                                 print_ifopen(indent, "array");
 266                         }
 267                         /* The (void*) avoids a gcc-4.1 warning */
 268                         print_ifarg("(char **)(void*)");
 269                         if (*objname == '&') {
 270                                 f_print(fout, "%s.%s_val, (u_int *)%s.%s_len",
 271                                         objname, name, objname, name);
 272                         } else {
 273                                 f_print(fout, "&%s->%s_val, (u_int *)&%s->%s_len",
 274                                         objname, name, objname, name);
 275                         }
 276                 }
 277                 print_ifarg(amax);
 278                 if (!alt) {
 279                         print_ifsizeof(prefix, type);
 280                 }
 281                 break;
 282         case REL_ALIAS:
 283                 print_ifopen(indent, type);
 284                 print_ifarg(objname);
 285                 break;
 286         }
 287         print_ifclose(indent);
 288 }
 289
 290 static void
 291 emit_enum(definition *def)
 292 {
 293         print_ifopen(1, "enum");
 294         print_ifarg("(enum_t *)objp");
 295         print_ifclose(1);
 296 }
 297
 298 static void
 299 emit_program(definition *def)
 300 {
 301         decl_list      *dl;
 302         version_list   *vlist;
 303         proc_list      *plist;
 304
 305         for (vlist = def->def.pr.versions; vlist != NULL; vlist = vlist->next)
 306                 for (plist = vlist->procs; plist != NULL; plist = plist->next) {
 307                         if (!newstyle || plist->arg_num < 2)
 308                                 continue;/* old style, or single argument */
 309                         print_prog_header(plist);
 310                         for (dl = plist->args.decls; dl != NULL; dl = dl->next)
 311                                 print_stat(1, &dl->decl);
 312                         print_trailer();
 313                 }
 314 }
 315
 316
 317 static void
 318 emit_union(definition *def)
 319 {
 320   declaration *dflt;
 321   case_list *cl;
 322   declaration *cs;
 323   char *object;
 324   char *vecformat = "objp->%s_u.%s";
 325   char *format = "&objp->%s_u.%s";
 326
 327   print_stat(1,&def->def.un.enum_decl);
 328   f_print(fout, "\tswitch (objp->%s) {\n", def->def.un.enum_decl.name);
 329   for (cl = def->def.un.cases; cl != NULL; cl = cl->next) {
 330
 331     f_print(fout, "\tcase %s:\n", cl->case_name);
 332     if(cl->contflag == 1)       /* a continued case statement */
 333       continue;
 334     cs = &cl->case_decl;
 335     if (!streq(cs->type, "void")) {
 336       object = alloc(strlen(def->def_name) + strlen(format) +
 337                      strlen(cs->name) + 1);
 338       if (isvectordef (cs->type, cs->rel)) {
 339         s_print(object, vecformat, def->def_name,
 340                 cs->name);
 341       } else {
 342         s_print(object, format, def->def_name,
 343                 cs->name);
 344       }
 345       print_ifstat(2, cs->prefix, cs->type, cs->rel, cs->array_max,
 346                    object, cs->name);
 347       free(object);
 348     }
 349     f_print(fout, "\t\tbreak;\n");
 350   }
 351   dflt = def->def.un.default_decl;
 352   if (dflt != NULL) {
 353     if (!streq(dflt->type, "void")) {
 354       f_print(fout, "\tdefault:\n");
 355       object = alloc(strlen(def->def_name) + strlen(format) +
 356                      strlen(dflt->name) + 1);
 357       if (isvectordef (dflt->type, dflt->rel)) {
 358         s_print(object, vecformat, def->def_name,
 359                 dflt->name);
 360       } else {
 361         s_print(object, format, def->def_name,
 362                 dflt->name);
 363       }
 364
 365       print_ifstat(2, dflt->prefix, dflt->type, dflt->rel,
 366                    dflt->array_max, object, dflt->name);
 367       free(object);
 368       f_print(fout, "\t\tbreak;\n");
 369     } else {
 370       /* Avoid gcc warnings about `value not handled in switch' */
 371       f_print(fout, "\tdefault:\n");
 372       f_print(fout, "\t\tbreak;\n");
 373     }
 374   } else {
 375     f_print(fout, "\tdefault:\n");
 376     f_print(fout, "\t\treturn (FALSE);\n");
 377   }
 378
 379   f_print(fout, "\t}\n");
 380 }
 381
 382 static void
 383 emit_struct(definition *def)
 384 {
 385         decl_list      *dl;
 386         int             i, j, size, flag;
 387         decl_list      *cur = NULL, *psav;
 388         bas_type       *ptr;
 389         char           *sizestr, *plus;
 390         char            ptemp[256];
 391         int             can_inline;
 392         const char      *buf_declaration;
 393
 394
 395         if (Inline == 0) {
 396                 for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
 397                         print_stat(1, &dl->decl);
 398         } else {
 399                 size = 0;
 400                 can_inline = 0;
 401                 for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
 402                         if ((dl->decl.prefix == NULL) && ((ptr = find_type(dl->decl.type)) != NULL) && ((dl->decl.rel == REL_ALIAS) || (dl->decl.rel == REL_VECTOR))) {
 403
 404                                 if (dl->decl.rel == REL_ALIAS)
 405                                         size += ptr->length;
 406                                 else {
 407                                         can_inline = 1;
 408                                         break;  /* can be inlined */
 409                                 };
 410                         } else {
 411                                 if (size >= Inline) {
 412                                         can_inline = 1;
 413                                         break;  /* can be inlined */
 414                                 }
 415                                 size = 0;
 416                         }
 417                 if (size > Inline)
 418                         can_inline = 1;
 419
 420                 if (can_inline == 0) {  /* can not inline, drop back to old mode */
 421                         for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
 422                                 print_stat(1, &dl->decl);
 423                         return;
 424                 };
 425
 426
 427
 428
 429                 flag = PUT;
 430                 for (j = 0; j < 2; j++) {
 431
 432                         if (flag == PUT)
 433                                 f_print(fout, "\n\t if (xdrs->x_op == XDR_ENCODE) {\n");
 434                         else
 435                                 f_print(fout, "\n \t return (TRUE);\n\t} else if (xdrs->x_op == XDR_DECODE) {\n");
 436
 437
 438                         i = 0;
 439                         size = 0;
 440                         sizestr = NULL;
 441                         buf_declaration = "int32_t *";
 442                         for (dl = def->def.st.decls; dl != NULL; dl = dl->next) {       /* xxx */
 443
 444                                 /* now walk down the list and check for basic types */
 445                                 if ((dl->decl.prefix == NULL) && ((ptr = find_type(dl->decl.type)) != NULL) && ((dl->decl.rel == REL_ALIAS) || (dl->decl.rel == REL_VECTOR))) {
 446                                         if (i == 0)
 447                                                 cur = dl;
 448                                         i++;
 449
 450                                         if (dl->decl.rel == REL_ALIAS)
 451                                                 size += ptr->length;
 452                                         else {
 453                                                 /* this is required to handle arrays */
 454
 455                                                 if (sizestr == NULL)
 456                                                         plus = " ";
 457                                                 else
 458                                                         plus = "+";
 459
 460                                                 if (ptr->length != 1)
 461                                                         s_print(ptemp, " %s %s * %d", plus, dl->decl.array_max, ptr->length);
 462                                                 else
 463                                                         s_print(ptemp, " %s %s ", plus, dl->decl.array_max);
 464
 465                                                 /*now concatenate to sizestr !!!! */
 466                                                 if (sizestr == NULL)
 467                                                         sizestr = strdup(ptemp);
 468                                                 else {
 469                                                         sizestr = realloc(sizestr, strlen(sizestr) + strlen(ptemp) + 1);
 470                                                         if (sizestr == NULL) {
 471
 472                                                                 f_print(stderr, "Fatal error : no memory \n");
 473                                                                 crash();
 474                                                         };
 475                                                         sizestr = strcat(sizestr, ptemp);       /*build up length of array */
 476
 477                                                 }
 478                                         }
 479
 480                                 } else {
 481                                         if (i > 0)
 482                                             {
 483                                                 if (sizestr == NULL && size < Inline) {
 484                                                         /* don't expand into inline code if size < inline */
 485                                                         while (cur != dl) {
 486                                                                 print_stat(1, &cur->decl);
 487                                                                 cur = cur->next;
 488                                                         }
 489                                                 } else {
 490
 491
 492
 493                                                         /* were already looking at a xdr_inlineable structure */
 494                                                         if (sizestr == NULL)
 495                                                                 f_print(fout, "\t %sbuf = XDR_INLINE(xdrs,%d * BYTES_PER_XDR_UNIT);",
 496                                                                         buf_declaration, size);
 497                                                         else if (size == 0)
 498                                                                 f_print(fout,
 499                                                                         "\t %sbuf = XDR_INLINE(xdrs,%s * BYTES_PER_XDR_UNIT);",
 500                                                                         buf_declaration, sizestr);
 501                                                         else
 502                                                                 f_print(fout,
 503                                                                         "\t %sbuf = XDR_INLINE(xdrs,(%d + %s)* BYTES_PER_XDR_UNIT);",
 504                                                                         buf_declaration, size, sizestr);
 505                                                         buf_declaration = "";
 506
 507                                                         f_print(fout, "\n\t   if (buf == NULL) {\n");
 508
 509                                                         psav = cur;
 510                                                         while (cur != dl) {
 511                                                                 print_stat(2, &cur->decl);
 512                                                                 cur = cur->next;
 513                                                         }
 514
 515                                                         f_print(fout, "\n\t  }\n\t  else {\n");
 516
 517                                                         cur = psav;
 518                                                         while (cur != dl) {
 519                                                                 emit_inline(&cur->decl, flag);
 520                                                                 cur = cur->next;
 521                                                         }
 522
 523                                                         f_print(fout, "\t  }\n");
 524                                                 }
 525                                             }
 526                                         size = 0;
 527                                         i = 0;
 528                                         sizestr = NULL;
 529                                         print_stat(1, &dl->decl);
 530                                 }
 531
 532                         }
 533                         if (i > 0)
 534                             {
 535                                 if (sizestr == NULL && size < Inline) {
 536                                         /* don't expand into inline code if size < inline */
 537                                         while (cur != dl) {
 538                                                 print_stat(1, &cur->decl);
 539                                                 cur = cur->next;
 540                                         }
 541                                 } else {
 542
 543                                         /* were already looking at a xdr_inlineable structure */
 544                                         if (sizestr == NULL)
 545                                                 f_print(fout, "\t\t%sbuf = XDR_INLINE(xdrs,%d * BYTES_PER_XDR_UNIT);",
 546                                                         buf_declaration, size);
 547                                         else if (size == 0)
 548                                                 f_print(fout,
 549                                                         "\t\t%sbuf = XDR_INLINE(xdrs,%s * BYTES_PER_XDR_UNIT);",
 550                                                         buf_declaration, sizestr);
 551                                         else
 552                                                 f_print(fout,
 553                                                         "\t\t%sbuf = XDR_INLINE(xdrs,(%d + %s)* BYTES_PER_XDR_UNIT);",
 554                                                         buf_declaration, size, sizestr);
 555                                         buf_declaration = "";
 556
 557                                         f_print(fout, "\n\t\tif (buf == NULL) {\n");
 558
 559                                         psav = cur;
 560                                         while (cur != NULL) {
 561                                                 print_stat(2, &cur->decl);
 562                                                 cur = cur->next;
 563                                         }
 564                                         f_print(fout, "\n\t  }\n\t  else {\n");
 565
 566                                         cur = psav;
 567                                         while (cur != dl) {
 568                                                 emit_inline(&cur->decl, flag);
 569                                                 cur = cur->next;
 570                                         }
 571
 572                                         f_print(fout, "\t  }\n");
 573
 574                                 }
 575                             }
 576                         flag = GET;
 577                 }
 578                 f_print(fout, "\t return(TRUE);\n\t}\n\n");
 579
 580                 /* now take care of XDR_FREE case */
 581
 582                 for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
 583                         print_stat(1, &dl->decl);
 584         }
 585 }
 586
 587
 588
 589
 590 static void
 591 emit_typedef(definition *def)
 592 {
 593         char *prefix = def->def.ty.old_prefix;
 594         char *type = def->def.ty.old_type;
 595         char *amax = def->def.ty.array_max;
 596         relation rel = def->def.ty.rel;
 597
 598
 599           print_ifstat(1, prefix, type, rel, amax, "objp", def->def_name);
 600 }
 601
 602 static void
 603 print_stat(int indent, declaration *dec)
 604 {
 605         char *prefix = dec->prefix;
 606         char *type = dec->type;
 607         char *amax = dec->array_max;
 608         relation rel = dec->rel;
 609         char name[256];
 610
 611         if (isvectordef(type, rel)) {
 612                 s_print(name, "objp->%s", dec->name);
 613         } else {
 614                 s_print(name, "&objp->%s", dec->name);
 615         }
 616         print_ifstat(indent, prefix, type, rel, amax, name, dec->name);
 617 }
 618
 619
 620 static void
 621 emit_inline(declaration *decl, int flag)
 622 {
 623
 624         /*check whether an array or not */
 625
 626         switch (decl->rel) {
 627         case REL_ALIAS:
 628                 emit_single_in_line(decl, flag, REL_ALIAS);
 629                 break;
 630         case REL_VECTOR:
 631                 f_print(fout, "\t\t{ register %s *genp; \n", decl->type);
 632                 f_print(fout, "\t\t  int i;\n");
 633                 f_print(fout, "\t\t  for ( i = 0,genp=objp->%s;\n \t\t\ti < %s; i++){\n\t\t",
 634                         decl->name, decl->array_max);
 635                 emit_single_in_line(decl, flag, REL_VECTOR);
 636                 f_print(fout, "\t\t   }\n\t\t };\n");
 637                 break;
 638         default:
 639                 break;
 640         }
 641 }
 642
 643 static void
 644 emit_single_in_line(declaration *decl, int flag, relation rel)
 645 {
 646         char *upp_case;
 647         int freed=0;
 648
 649         if(flag == PUT)
 650                 f_print(fout,"\t\t (void) IXDR_PUT_");
 651         else
 652                 if(rel== REL_ALIAS)
 653                         f_print(fout,"\t\t objp->%s = IXDR_GET_",decl->name);
 654                 else
 655                         f_print(fout,"\t\t *genp++ = IXDR_GET_");
 656
 657         upp_case=upcase(decl->type);
 658
 659         /* hack  - XX */
 660         if(strcmp(upp_case,"INT") == 0)
 661         {
 662                 free(upp_case);
 663                 freed=1;
 664                 upp_case="INT32";
 665         }
 666
 667         if(strcmp(upp_case,"U_INT") == 0)
 668         {
 669                 free(upp_case);
 670                 freed=1;
 671                 upp_case="U_INT32";
 672         }
 673
 674
 675         if(flag == PUT)
 676                 if(rel== REL_ALIAS)
 677                         f_print(fout,"%s(buf,objp->%s);\n",upp_case,decl->name);
 678                 else
 679                         f_print(fout,"%s(buf,*genp++);\n",upp_case);
 680
 681         else
 682                 f_print(fout,"%s(buf);\n",upp_case);
 683         if(!freed)
 684                 free(upp_case);
 685
 686 }
 687
 688
 689 static char *
 690 upcase(char *str)
 691 {
 692         char           *ptr, *hptr;
 693
 694
 695         ptr = (char *) malloc(strlen(str)+1);
 696         if (ptr == (char *) NULL) {
 697                 f_print(stderr, "malloc failed \n");
 698                 exit(1);
 699         };
 700
 701         hptr = ptr;
 702         while (*str != '\0')
 703                 *ptr++ = toupper(*str++);
 704
 705         *ptr = '\0';
 706         return (hptr);
 707
 708 }