2 * From: @(#)rpc_util.c 1.11 89/02/22
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34 * rpc_util.c, Utility routines for the RPC protocol compiler
41 #include "rpc_parse.h"
45 #define ARGEXT "argument"
47 char curline[MAXLINESIZE]; /* current read line */
48 const char *where = curline; /* current point in line */
49 int linenum = 0; /* current line number */
51 const char *infilename; /* input filename */
54 const char *outfiles[NFILES]; /* output file names */
57 FILE *fout; /* file pointer of current output */
58 FILE *fin; /* file pointer of current input */
60 list *defined; /* list of defined things */
62 static int findit (const definition * def, const char *type);
63 static const char *fixit (const char *type, const char *orig);
64 static int typedefed (const definition * def, const char *type);
65 static const char *toktostr (tok_kind kind);
66 static void printbuf (void);
67 static void printwhere (void);
70 * Reinitialize the world
75 memset (curline, 0, MAXLINESIZE);
85 streq (const char *a, const char *b)
87 return strcmp (a, b) == 0;
91 * find a value in a list
94 findval (list *lst, const char *val,
95 int (*cmp) (const definition *, const char *))
98 for (; lst != NULL; lst = lst->next)
100 if (cmp (lst->val, val))
109 * store a value in a list
112 storeval (list **lstp, definition *val)
118 for (l = lstp; *l != NULL; l = (list **) & (*l)->next);
126 findit (const definition * def, const char *type)
128 return streq (def->def_name, type);
132 fixit (const char *type, const char *orig)
136 def = findval (defined, type, findit);
137 if (def == NULL || def->def_kind != DEF_TYPEDEF)
141 switch (def->def.ty.rel)
144 if (streq (def->def.ty.old_type, "opaque"))
147 return (def->def.ty.old_type);
149 return (fixit (def->def.ty.old_type, orig));
156 fixtype (const char *type)
158 return fixit (type, type);
162 stringfix (const char *type)
164 if (streq (type, "string"))
175 ptype (const char *prefix, const char *type, int follow)
179 if (streq (prefix, "enum"))
181 f_print (fout, "enum ");
185 f_print (fout, "struct ");
188 if (streq (type, "bool"))
190 f_print (fout, "bool_t ");
192 else if (streq (type, "string"))
194 f_print (fout, "char *");
198 f_print (fout, "%s ", follow ? fixtype (type) : type);
203 typedefed (const definition * def, const char *type)
205 if (def->def_kind != DEF_TYPEDEF || def->def.ty.old_prefix != NULL)
211 return streq (def->def_name, type);
216 isvectordef (const char *type, relation rel)
225 return !streq (type, "string");
231 def = findval (defined, type, typedefed);
236 type = def->def.ty.old_type;
237 rel = def->def.ty.rel;
243 locase (const char *str)
246 static char buf[100];
249 while ((c = *str++) != 0)
251 *p++ = (c >= 'A' && c <= 'Z') ? (c - 'A' + 'a') : c;
258 pvname_svc (const char *pname, const char *vnum)
260 f_print (fout, "%s_%s_svc", locase (pname), vnum);
264 pvname (const char *pname, const char *vnum)
266 f_print (fout, "%s_%s", locase (pname), vnum);
270 * print a useful (?) error message, and then die
273 error (const char *msg)
276 f_print (stderr, "%s, line %d: ", infilename, linenum);
277 f_print (stderr, "%s\n", msg);
282 * Something went wrong, unlink any files that we may have created and then
290 for (i = 0; i < nfiles; i++)
292 unlink (outfiles[i]);
298 record_open (const char *file)
302 outfiles[nfiles++] = file;
306 f_print (stderr, "too many files!\n");
311 static char expectbuf[100];
314 * error, token encountered was not the expected one
317 expected1 (tok_kind exp1)
319 s_print (expectbuf, "expected '%s'",
325 * error, token encountered was not one of two expected ones
328 expected2 (tok_kind exp1, tok_kind exp2)
330 s_print (expectbuf, "expected '%s' or '%s'",
337 * error, token encountered was not one of 3 expected ones
340 expected3 (tok_kind exp1, tok_kind exp2, tok_kind exp3)
342 s_print (expectbuf, "expected '%s', '%s' or '%s'",
350 tabify (FILE * f, int tab)
354 (void) fputc ('\t', f);
359 static const token tokstrings[] =
361 {TOK_IDENT, "identifier"},
362 {TOK_CONST, "const"},
373 {TOK_SEMICOLON, ";"},
374 {TOK_UNION, "union"},
375 {TOK_STRUCT, "struct"},
376 {TOK_SWITCH, "switch"},
378 {TOK_DEFAULT, "default"},
380 {TOK_TYPEDEF, "typedef"},
382 {TOK_SHORT, "short"},
384 {TOK_UNSIGNED, "unsigned"},
385 {TOK_DOUBLE, "double"},
386 {TOK_FLOAT, "float"},
388 {TOK_STRING, "string"},
389 {TOK_OPAQUE, "opaque"},
392 {TOK_PROGRAM, "program"},
393 {TOK_VERSION, "version"},
398 toktostr (tok_kind kind)
402 for (sp = tokstrings; sp->kind != TOK_EOF && sp->kind != kind; sp++);
415 for (i = 0; (c = curline[i]) != 0; i++)
419 cnt = 8 - (i % TABSIZE);
428 (void) fputc (c, stderr);
441 for (i = 0; i < where - curline; i++)
446 cnt = 8 - (i % TABSIZE);
454 (void) fputc ('^', stderr);
457 (void) fputc ('\n', stderr);
461 make_argname (const char *pname, const char *vname)
465 name = malloc (strlen (pname) + strlen (vname) + strlen (ARGEXT) + 3);
468 fprintf (stderr, "failed in malloc");
471 sprintf (name, "%s_%s_%s", locase (pname), vname, ARGEXT);
475 bas_type *typ_list_h;
476 bas_type *typ_list_t;
479 add_type (int len, const char *type)
484 if ((ptr = malloc (sizeof (bas_type))) == NULL)
486 fprintf (stderr, "failed in malloc");
493 if (typ_list_t == NULL)
502 typ_list_t->next = ptr;
510 find_type (const char *type)
519 if (strcmp (ptr->name, type) == 0)