epan/uat.h

   1 /*
   2  *  uat.h
   3  *
   4  *  $Id$
   5  *
   6  *  User Accessible Tables
   7  *  Mantain an array of user accessible data strucures
   8  *
   9  * (c) 2007, Luis E. Garcia Ontanon <luis@ontanon.org>
  10  *
  11  * Wireshark - Network traffic analyzer
  12  * By Gerald Combs <gerald@wireshark.org>
  13  * Copyright 2001 Gerald Combs
  14  *
  15  * This program is free software; you can redistribute it and/or
  16  * modify it under the terms of the GNU General Public License
  17  * as published by the Free Software Foundation; either version 2
  18  * of the License, or (at your option) any later version.
  19  *
  20  * This program is distributed in the hope that it will be useful,
  21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  * GNU General Public License for more details.
  24  *
  25  * You should have received a copy of the GNU General Public License
  26  * along with this program; if not, write to the Free Software
  27  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  28  */
  29
  30 #ifndef __UAT_H__
  31 #define __UAT_H__
  32
  33 #include <stdlib.h>
  34
  35 #include "ws_symbol_export.h"
  36
  37 #ifdef __cplusplus
  38 extern "C" {
  39 #endif /* __cplusplus */
  40
  41 /*
  42  * uat mantains a dynamically allocated table accessible to the user
  43  * via a file and/or gui tables.
  44  *
  45  * the file is located either in userdir(when first read or when writen) or
  46  * in datadir for defaults (read only , it will be always written to userdir).
  47  *
  48  * the behaviour of the table is controlled by a series of callbacks
  49  * the caller must provide.
  50  *
  51  * BEWARE that the user can change an uat at (almost) any time,
  52  * That is pointers to records in an uat are valid only during the call
  53  * to the function that obtains them (do not store them).
  54  *
  55  * UATs are meant for short tables of user data (passwords and such) there's
  56  * no quick access, you must iterate through them each time to fetch the record
  57  * you are looking for. Use uat_dup() or uat_se_dup() if necessary.
  58  *
  59  * Only users via gui or editing the file can add/remove records your code cannot.
  60  */
  61
  62 /* obscure data type to handle an uat */
  63 typedef struct _uat_t uat_t;
  64 /********************************************
  65  * Callbacks:
  66  * these instruct uat on how to deal with user info and data in records
  67  ********************************************/
  68
  69 /********
  70  * Callbacks dealing with the entire table
  71  ********/
  72
  73 /*
  74  * Post-Update CB
  75  *
  76  * to be called after to the table has being edited
  77  * Will be called once the user clicks the Apply or OK button
  78  * optional
  79  */
  80 typedef void (*uat_post_update_cb_t)(void);
  81
  82
  83 /********
  84  * Callbacks dealing with records (these deal with entire records)
  85  ********/
  86
  87 /*
  88  * Copy CB
  89  * used to copy a record
  90  * optional, memcpy will be used if not given
  91  * copy(dest,orig,len)
  92  */
  93 typedef void* (*uat_copy_cb_t)(void*, const void*, size_t);
  94
  95 /*
  96  *
  97  * Free CB
  98  *
  99  * destroy a record's child data
 100  * (do not free the container, it will be handled by uat)
 101  * it is optional, no child data will be freed if no present
 102  * free(record)
 103  */
 104 typedef void (*uat_free_cb_t)(void*);
 105
 106 /*
 107  * Update CB
 108  *
 109  * to be called after any record fields had been updated
 110  * optional, record will be updated always if not given
 111  * update(record,&error)
 112  */
 113 typedef void (*uat_update_cb_t)(void* , const char** );
 114
 115
 116 /*******
 117  * Callbacks for single fields (these deal with single values)
 118  * the caller should provide one of these for every field!
 119  ********/
 120
 121 /*
 122  * given an input string (ptr, len) checks if the value is OK for a field in the record.
 123  * it will return TRUE if OK or else
 124  * it will return FALSE and may set *error to inform the user on what's
 125  * wrong with the given input
 126  * optional, if not given any input is considered OK and the set cb will be called
 127  * chk(record, ptr, len, chk_data, fld_data, &error)
 128  */
 129 typedef gboolean (*uat_fld_chk_cb_t)(void*, const char*, unsigned, const void*, const void*, const char**);
 130
 131 /*
 132  * Set Field CB
 133  *
 134  * given an input string (ptr, len) sets the value of a field in the record,
 135  * it will return TRUE if OK or else
 136  * it will return FALSE and may set *error to inform the user on what's
 137  * wrong with the given input
 138  * it is mandatory
 139  * set(record, ptr, len, set_data, fld_data)
 140  */
 141 typedef void (*uat_fld_set_cb_t)(void*, const char*, unsigned, const void*, const void*);
 142
 143 /*
 144  * given a record returns a string representation of the field
 145  * mandatory
 146  * tostr(record, &out_ptr, &out_len, tostr_data, fld_data)
 147  */
 148 typedef void (*uat_fld_tostr_cb_t)(void*, const char**, unsigned*, const void*, const void*);
 149
 150 /***********
 151  * Text Mode
 152  *
 153  * used for file and dialog representation of fields in columns,
 154  * when the file is read it modifies the way the value is passed back to the fld_set_cb
 155  * (see definition bellow for description)
 156  ***********/
 157
 158 typedef enum _uat_text_mode_t {
 159         PT_TXTMOD_NONE,
 160         /* not used */
 161
 162         PT_TXTMOD_STRING,
 163         /*
 164          file:
 165                  reads:
 166                          ,"\x20\x00\x30", as " \00",3
 167                          ,"", as "",0
 168                          ,, as NULL,0
 169                  writes:
 170                          ,"\x20\x30\x00\x20", for " 0\0 ",4
 171                          ,"", for *, 0
 172                          ,, for NULL, *
 173          dialog:
 174                  accepts \x?? and other escapes
 175                  gets "",0 on empty string
 176          */
 177         PT_TXTMOD_HEXBYTES,
 178         /*
 179          file:
 180                  reads:
 181                          ,A1b2C3d4, as "\001\002\003\004",4
 182                          ,, as NULL,0
 183                  writes:
 184                          ,, on NULL, *
 185                          ,a1b2c3d4, on "\001\002\003\004",4
 186          dialog:
 187                  "a1b2c3d4" as "\001\002\003\004",4
 188                  "a1 b2:c3d4" as "\001\002\003\004",4
 189                  "" as NULL,0
 190                  "invalid" as NULL,3
 191                  "a1b" as NULL, 1
 192          */
 193         PT_TXTMOD_ENUM,
 194
 195         PT_TXTMOD_FILENAME,
 196         /* processed like a PT_TXTMOD_STRING, but shows a filename dialog */
 197         PT_TXTMOD_DIRECTORYNAME
 198         /* processed like a PT_TXTMOD_STRING, but shows a directory dialog */
 199 } uat_text_mode_t;
 200
 201 /*
 202  * Fields
 203  *
 204  *
 205  */
 206 typedef struct _uat_field_t {
 207         const char* name;
 208         const char* title;
 209         uat_text_mode_t mode;
 210
 211         struct {
 212                 uat_fld_chk_cb_t chk;
 213                 uat_fld_set_cb_t set;
 214                 uat_fld_tostr_cb_t tostr;
 215         } cb;
 216
 217         struct {
 218                 const void* chk;
 219                 const void* set;
 220                 const void* tostr;
 221         } cbdata;
 222
 223         const void* fld_data;
 224
 225         const char* desc;
 226         struct _fld_data_t* priv;
 227 } uat_field_t;
 228
 229 #define FLDFILL NULL
 230 #define UAT_END_FIELDS {NULL,NULL,PT_TXTMOD_NONE,{0,0,0},{0,0,0},0,0,FLDFILL}
 231
 232 /*
 233  * Flags to indicate what the settings in this UAT affect.
 234  * This is used when UATs are changed interactively, to indicate what needs
 235  * to be redone when the UAT is changed.
 236  */
 237 #define UAT_AFFECTS_DISSECTION  0x00000001      /* affects packet dissection */
 238 #define UAT_AFFECTS_FIELDS      0x00000002      /* affects what named fields exist */
 239
 240 /** Create a new uat
 241  *
 242  * @param name The name of the table
 243  * @param size The size of the structure
 244  * @param filename The filename to be used (either in userdir or datadir)
 245  * @param from_profile TRUE if profile directory to be used
 246  * @param data_ptr A pointer to a null terminated array of pointers to the data
 247  * @param num_items_ptr A pointer with number of items
 248  * @param flags flags indicating what this UAT affects
 249  * @param help A pointer to help text
 250  * @param copy_cb A function that copies the data in the struct
 251  * @param update_cb Will be called when a record is updated
 252  * @param free_cb Will be called to destroy a struct in the dataset
 253  * @param post_update_cb Will be called once the user clicks the Apply or OK button
 254  * @param flds_array A pointer to an array of uat_field_t structs
 255  *
 256  * @return A freshly-allocated and populated uat_t struct.
 257  */
 258 WS_DLL_PUBLIC
 259 uat_t* uat_new(const char* name,
 260                            size_t size,
 261                            const char* filename,
 262                            gboolean from_profile,
 263                            void** data_ptr,
 264                            guint* num_items_ptr,
 265                            guint flags,
 266                            const char* help,
 267                            uat_copy_cb_t copy_cb,
 268                            uat_update_cb_t update_cb,
 269                            uat_free_cb_t free_cb,
 270                            uat_post_update_cb_t post_update_cb,
 271                            uat_field_t* flds_array);
 272
 273 /** Populate a uat using its file.
 274  *
 275  * @param uat_in Pointer to a uat. Must not be NULL.
 276  * @param err Upon failure, points to an error string.
 277  *
 278  * @return TRUE on success, FALSE on failure.
 279  */
 280 WS_DLL_PUBLIC
 281 gboolean uat_load(uat_t* uat_in, const char** err);
 282
 283 /** Create or update a single uat entry using a string.
 284  *
 285  * @param uat_in Pointer to a uat. Must not be NULL.
 286  * @param entry The string representation of the entry. Format must match
 287  * what's written to the uat's output file.
 288  * @param err Upon failure, points to an error string.
 289  *
 290  * @return TRUE on success, FALSE on failure.
 291  */
 292 gboolean uat_load_str(uat_t* uat_in, char* entry, char** err);
 293
 294 /** Given a uat name or filename, find its pointer.
 295  *
 296  * @param name The name or filename of the uat
 297  *
 298  * @return A pointer to the uat on success, NULL on failure.
 299  */
 300 uat_t *uat_find(gchar *name);
 301
 302 /*
 303  * uat_dup()
 304  * uat_se_dup()
 305  * make a reliable copy of an uat for internal use,
 306  * so that pointers to records can be kept through calls.
 307  * return NULL on zero len.
 308  */
 309 void* uat_dup(uat_t*, guint* len_p); /* to be freed */
 310 void* uat_se_dup(uat_t*, guint* len_p);
 311 WS_DLL_PUBLIC
 312 uat_t* uat_get_table_by_name(const char* name);
 313
 314 /*
 315  * Some common uat_fld_chk_cbs
 316  */
 317 WS_DLL_PUBLIC
 318 gboolean uat_fld_chk_str(void*, const char*, unsigned, const void*, const void*, const char** err);
 319 gboolean uat_fld_chk_oid(void*, const char*, unsigned, const void*, const void*, const char** err);
 320 WS_DLL_PUBLIC
 321 gboolean uat_fld_chk_proto(void*, const char*, unsigned, const void*, const void*, const char** err);
 322 WS_DLL_PUBLIC
 323 gboolean uat_fld_chk_num_dec(void*, const char*, unsigned, const void*, const void*, const char** err);
 324 WS_DLL_PUBLIC
 325 gboolean uat_fld_chk_num_hex(void*, const char*, unsigned, const void*, const void*, const char** err);
 326 WS_DLL_PUBLIC
 327 gboolean uat_fld_chk_enum(void*, const char*, unsigned, const void*, const void*, const char**);
 328 WS_DLL_PUBLIC
 329 gboolean uat_fld_chk_range(void*, const char*, unsigned, const void*, const void*, const char**);
 330
 331 #define CHK_STR_IS_DECL(what) \
 332 gboolean uat_fld_chk_str_ ## what (void*, const char*, unsigned, const void*, const void*, const char**)
 333
 334 typedef void (*uat_cb_t)(void* uat,void* user_data);
 335 WS_DLL_PUBLIC
 336 void uat_foreach_table(uat_cb_t cb,void* user_data);
 337 void uat_unload_all(void);
 338
 339 char* uat_undquote(const char* si, guint in_len, guint* len_p);
 340 char* uat_unbinstring(const char* si, guint in_len, guint* len_p);
 341 char* uat_unesc(const char* si, guint in_len, guint* len_p);
 342 char* uat_esc(const char* buf, guint len);
 343
 344 /* Some strings entirely made of ... already declared */
 345 WS_DLL_PUBLIC
 346 CHK_STR_IS_DECL(isprint);
 347 WS_DLL_PUBLIC
 348 CHK_STR_IS_DECL(isalpha);
 349 WS_DLL_PUBLIC
 350 CHK_STR_IS_DECL(isalnum);
 351 WS_DLL_PUBLIC
 352 CHK_STR_IS_DECL(isdigit);
 353 WS_DLL_PUBLIC
 354 CHK_STR_IS_DECL(isxdigit);
 355
 356 #define CHK_STR_IS_DEF(what) \
 357 gboolean uat_fld_chk_str_ ## what (void* u1 _U_, const char* strptr, guint len, const void* u2 _U_, const void* u3 _U_, const char** err) { \
 358         guint i; for (i=0;i<len;i++) { \
 359                 char c = strptr[i]; \
 360                         if (! what((int)c)) { \
 361                                 *err = ep_strdup_printf("invalid char pos=%d value=%.2x",i,c); return FALSE;  } } \
 362                 *err = NULL; return TRUE; }
 363
 364
 365 /*
 366  * Macros
 367  *   to define basic uat_fld_set_cbs, uat_fld_tostr_cbs
 368  *   for those elements in uat_field_t array
 369  */
 370
 371 /*
 372  * CSTRING macros,
 373  *    a simple c-string contained in (((rec_t*)rec)->(field_name))
 374  */
 375 #define UAT_CSTRING_CB_DEF(basename,field_name,rec_t) \
 376 static void basename ## _ ## field_name ## _set_cb(void* rec, const char* buf, guint len, const void* u1 _U_, const void* u2 _U_) {\
 377     char* new_buf = g_strndup(buf,len); \
 378         g_free((((rec_t*)rec)->field_name)); \
 379         (((rec_t*)rec)->field_name) = new_buf; } \
 380 static void basename ## _ ## field_name ## _tostr_cb(void* rec, const char** out_ptr, unsigned* out_len, const void* u1 _U_, const void* u2 _U_) {\
 381                 if (((rec_t*)rec)->field_name ) { \
 382                         *out_ptr = (((rec_t*)rec)->field_name); \
 383                         *out_len = (unsigned)strlen((((rec_t*)rec)->field_name)); \
 384                 } else { \
 385                         *out_ptr = ""; *out_len = 0; } }
 386
 387 #define UAT_FLD_CSTRING(basename,field_name,title,desc) \
 388         {#field_name, title, PT_TXTMOD_STRING,{uat_fld_chk_str,basename ## _ ## field_name ## _set_cb,basename ## _ ## field_name ## _tostr_cb},{0,0,0},0,desc,FLDFILL}
 389
 390 #define UAT_FLD_CSTRING_ISPRINT(basename,field_name,title,desc) \
 391         {#field_name, title, PT_TXTMOD_STRING,{uat_fld_chk_str_isprint,basename ## _ ## field_name ## _set_cb,basename ## _ ## field_name ## _tostr_cb},{0,0,0},0,desc,FLDFILL}
 392
 393 #define UAT_FLD_CSTRING_OTHER(basename,field_name,title,chk,desc) \
 394         {#field_name, title, PT_TXTMOD_STRING,{ chk ,basename ## _ ## field_name ## _set_cb,basename ## _ ## field_name ## _tostr_cb},{0,0,0},0,desc,FLDFILL}
 395
 396 /*
 397  * FILENAME and DIRECTORYNAME,
 398  *    a simple c-string contained in (((rec_t*)rec)->(field_name))
 399  */
 400 #define UAT_FILENAME_CB_DEF(basename,field_name,rec_t) UAT_CSTRING_CB_DEF(basename,field_name,rec_t)
 401
 402 #define UAT_FLD_FILENAME(basename,field_name,title,desc) \
 403         {#field_name, title, PT_TXTMOD_FILENAME,{uat_fld_chk_str,basename ## _ ## field_name ## _set_cb,basename ## _ ## field_name ## _tostr_cb},{0,0,0},0,desc,FLDFILL}
 404
 405 #define UAT_FLD_FILENAME_OTHER(basename,field_name,title,chk,desc) \
 406         {#field_name, title, PT_TXTMOD_FILENAME,{chk,basename ## _ ## field_name ## _set_cb,basename ## _ ## field_name ## _tostr_cb},{0,0,0},0,desc,FLDFILL}
 407
 408 #define UAT_DIRECTORYNAME_CB_DEF(basename,field_name,rec_t) UAT_CSTRING_CB_DEF(basename,field_name,rec_t)
 409
 410 #define UAT_FLD_DIRECTORYNAME(basename,field_name,title,desc) \
 411         {#field_name, title, PT_TXTMOD_DIRECTORYNAME,{uat_fld_chk_str,basename ## _ ## field_name ## _set_cb,basename ## _ ## field_name ## _tostr_cb},{0,0,0},0,desc,FLDFILL}
 412
 413 /*
 414  * OID - just a CSTRING with a specific check routine
 415  */
 416 #define UAT_FLD_OID(basename,field_name,title,desc) \
 417         {#field_name, title, PT_TXTMOD_STRING,{uat_fld_chk_oid,basename ## _ ## field_name ## _set_cb,basename ## _ ## field_name ## _tostr_cb},{0,0,0},0,desc,FLDFILL}
 418
 419
 420 /*
 421  * LSTRING MACROS
 422  */
 423 #define UAT_LSTRING_CB_DEF(basename,field_name,rec_t,ptr_element,len_element) \
 424 static void basename ## _ ## field_name ## _set_cb(void* rec, const char* buf, guint len, const void* u1 _U_, const void* u2 _U_) {\
 425         char* new_val = uat_unesc(buf,len,&(((rec_t*)rec)->len_element)); \
 426         g_free((((rec_t*)rec)->ptr_element)); \
 427         (((rec_t*)rec)->ptr_element) = new_val; }\
 428 static void basename ## _ ## field_name ## _tostr_cb(void* rec, const char** out_ptr, unsigned* out_len, const void* u1 _U_, const void* u2 _U_) {\
 429         if (((rec_t*)rec)->ptr_element ) { \
 430                 *out_ptr = uat_esc(((rec_t*)rec)->ptr_element, (((rec_t*)rec)->len_element)); \
 431                 *out_len = (unsigned)strlen(*out_ptr); \
 432         } else { \
 433                 *out_ptr = ""; *out_len = 0; } }
 434
 435 #define UAT_FLD_LSTRING(basename,field_name,title, desc) \
 436 {#field_name, title, PT_TXTMOD_STRING,{0,basename ## _ ## field_name ## _set_cb,basename ## _ ## field_name ## _tostr_cb},{0,0,0},0,desc,FLDFILL}
 437
 438
 439 /*
 440  * BUFFER macros,
 441  *    a buffer_ptr contained in (((rec_t*)rec)->(field_name))
 442  *    and its len in (((rec_t*)rec)->(len_name))
 443  *  XXX: UNTESTED and probably BROKEN
 444  */
 445 #define UAT_BUFFER_CB_DEF(basename,field_name,rec_t,ptr_element,len_element) \
 446 static void basename ## _ ## field_name ## _set_cb(void* rec, const char* buf, guint len, const void* u1 _U_, const void* u2 _U_) {\
 447         char* new_buf = len ? (char *)g_memdup(buf,len) : NULL; \
 448         g_free((((rec_t*)rec)->ptr_element)); \
 449         (((rec_t*)rec)->ptr_element) = new_buf; \
 450         (((rec_t*)rec)->len_element) = len; } \
 451 static void basename ## _ ## field_name ## _tostr_cb(void* rec, const char** out_ptr, unsigned* out_len, const void* u1 _U_, const void* u2 _U_) {\
 452         *out_ptr = ((rec_t*)rec)->ptr_element ? (const char*)ep_memdup(((rec_t*)rec)->ptr_element,((rec_t*)rec)->len_element) : ""; \
 453         *out_len = ((rec_t*)rec)->len_element; }
 454
 455 #define UAT_FLD_BUFFER(basename,field_name,title,desc) \
 456         {#field_name, title, PT_TXTMOD_HEXBYTES,{0,basename ## _ ## field_name ## _set_cb,basename ## _ ## field_name ## _tostr_cb},{0,0,0},0,desc,FLDFILL}
 457
 458
 459 /*
 460  * DEC Macros,
 461  *   a decimal number contained in
 462  */
 463 #define UAT_DEC_CB_DEF(basename,field_name,rec_t) \
 464 static void basename ## _ ## field_name ## _set_cb(void* rec, const char* buf, guint len, const void* u1 _U_, const void* u2 _U_) {\
 465         ((rec_t*)rec)->field_name = (guint)strtol(ep_strndup(buf,len),NULL,10); } \
 466 static void basename ## _ ## field_name ## _tostr_cb(void* rec, const char** out_ptr, unsigned* out_len, const void* u1 _U_, const void* u2 _U_) {\
 467         *out_ptr = ep_strdup_printf("%d",((rec_t*)rec)->field_name); \
 468         *out_len = (unsigned)strlen(*out_ptr); }
 469
 470 #define UAT_FLD_DEC(basename,field_name,title,desc) \
 471         {#field_name, title, PT_TXTMOD_STRING,{uat_fld_chk_num_dec,basename ## _ ## field_name ## _set_cb,basename ## _ ## field_name ## _tostr_cb},{0,0,0},0,desc,FLDFILL}
 472
 473
 474 /*
 475  * HEX Macros,
 476  *   an hexadecimal number contained in
 477  */
 478 #define UAT_HEX_CB_DEF(basename,field_name,rec_t) \
 479 static void basename ## _ ## field_name ## _set_cb(void* rec, const char* buf, guint len, const void* u1 _U_, const void* u2 _U_) {\
 480         ((rec_t*)rec)->field_name = (guint)strtol(ep_strndup(buf,len),NULL,16); } \
 481 static void basename ## _ ## field_name ## _tostr_cb(void* rec, const char** out_ptr, unsigned* out_len, const void* u1 _U_, const void* u2 _U_) {\
 482         *out_ptr = ep_strdup_printf("%x",((rec_t*)rec)->field_name); \
 483         *out_len = (unsigned)strlen(*out_ptr); }
 484
 485 #define UAT_FLD_HEX(basename,field_name,title,desc) \
 486 {#field_name, title, PT_TXTMOD_STRING,{uat_fld_chk_num_hex,basename ## _ ## field_name ## _set_cb,basename ## _ ## field_name ## _tostr_cb},{0,0,0},0,desc,FLDFILL}
 487
 488
 489 /*
 490  * ENUM macros
 491  *  enum_t: name = ((enum_t*)ptr)->strptr
 492  *          value = ((enum_t*)ptr)->value
 493  *  rec_t:
 494  *        value
 495  */
 496 #define UAT_VS_DEF(basename,field_name,rec_t,default_t,default_val,default_str) \
 497 static void basename ## _ ## field_name ## _set_cb(void* rec, const char* buf, guint len, const void* vs, const void* u2 _U_) {\
 498         guint i; \
 499         char* str = ep_strndup(buf,len); \
 500         const char* cstr; ((rec_t*)rec)->field_name = default_val; \
 501         for(i=0; ( cstr = ((value_string*)vs)[i].strptr ) ;i++) { \
 502                 if (g_str_equal(cstr,str)) { \
 503                         ((rec_t*)rec)->field_name = (default_t)((value_string*)vs)[i].value; return; } } } \
 504 static void basename ## _ ## field_name ## _tostr_cb(void* rec, const char** out_ptr, unsigned* out_len, const void* vs, const void* u2 _U_) {\
 505         guint i; \
 506         *out_ptr = ep_strdup(default_str); \
 507         *out_len = (unsigned)strlen(default_str);\
 508         for(i=0;((value_string*)vs)[i].strptr;i++) { \
 509                 if ( ((value_string*)vs)[i].value == ((rec_t*)rec)->field_name ) { \
 510                         *out_ptr = ep_strdup(((value_string*)vs)[i].strptr); \
 511                         *out_len = (unsigned)strlen(*out_ptr); return; } } }
 512
 513 #define UAT_VS_CSTRING_DEF(basename,field_name,rec_t,default_val,default_str) \
 514 static void basename ## _ ## field_name ## _set_cb(void* rec, const char* buf, guint len, const void* vs, const void* u2 _U_) {\
 515         guint i; \
 516         char* str = ep_strndup(buf,len); \
 517         const char* cstr; ((rec_t*)rec)->field_name = default_val; \
 518         for(i=0; ( cstr = ((value_string*)vs)[i].strptr ) ;i++) { \
 519                 if (g_str_equal(cstr,str)) { \
 520                   ((rec_t*)rec)->field_name = g_strdup(((value_string*)vs)[i].strptr); return; } } } \
 521 static void basename ## _ ## field_name ## _tostr_cb(void* rec, const char** out_ptr, unsigned* out_len, const void* vs _U_, const void* u2 _U_) {\
 522                 if (((rec_t*)rec)->field_name ) { \
 523                         *out_ptr = (((rec_t*)rec)->field_name); \
 524                         *out_len = (unsigned)strlen((((rec_t*)rec)->field_name)); \
 525                 } else { \
 526                         *out_ptr = ""; *out_len = 0; } }
 527
 528 #define UAT_FLD_VS(basename,field_name,title,enum,desc) \
 529         {#field_name, title, PT_TXTMOD_ENUM,{uat_fld_chk_enum,basename ## _ ## field_name ## _set_cb,basename ## _ ## field_name ## _tostr_cb},{&(enum),&(enum),&(enum)},&(enum),desc,FLDFILL}
 530
 531
 532 /*
 533  * PROTO macros
 534  */
 535
 536 #define UAT_PROTO_DEF(basename, field_name, dissector_field, name_field, rec_t) \
 537 static void basename ## _ ## field_name ## _set_cb(void* rec, const char* buf, guint len, const void* u1 _U_, const void* u2 _U_) {\
 538         if (len) { \
 539                 gchar *tmp = g_strndup(buf,len); \
 540                 ((rec_t*)rec)->name_field = g_ascii_strdown(tmp, -1); \
 541                 g_free(tmp); \
 542                 g_strchug(((rec_t*)rec)->name_field); \
 543                 ((rec_t*)rec)->dissector_field = find_dissector(((rec_t*)rec)->name_field); \
 544         } else { \
 545                 ((rec_t*)rec)->dissector_field = find_dissector("data"); \
 546                 ((rec_t*)rec)->name_field = NULL; \
 547                 } } \
 548 static void basename ## _ ## field_name ## _tostr_cb(void* rec, const char** out_ptr, unsigned* out_len, const void* u1 _U_, const void* u2 _U_) {\
 549         if ( ((rec_t*)rec)->name_field ) { \
 550                 *out_ptr = (((rec_t*)rec)->name_field); \
 551                 *out_len = (unsigned)strlen(*out_ptr); \
 552         } else { \
 553                 *out_ptr = ""; *out_len = 0; } }
 554
 555
 556 #define UAT_FLD_PROTO(basename,field_name,title,desc) \
 557         {#field_name, title, PT_TXTMOD_STRING,{uat_fld_chk_proto,basename ## _ ## field_name ## _set_cb,basename ## _ ## field_name ## _tostr_cb},{0,0,0},0,desc,FLDFILL}
 558
 559 /*
 560  * RANGE macros
 561  */
 562
 563 #define UAT_RANGE_CB_DEF(basename,field_name,rec_t) \
 564 static void basename ## _ ## field_name ## _set_cb(void* rec, const char* buf, guint len, const void* u1 _U_, const void* u2) {\
 565         char* rng = ep_strndup(buf,len);\
 566                 range_convert_str(&(((rec_t*)rec)->field_name), rng,GPOINTER_TO_UINT(u2)); \
 567         } \
 568 static void basename ## _ ## field_name ## _tostr_cb(void* rec, const char** out_ptr, unsigned* out_len, const void* u1 _U_, const void* u2 _U_) {\
 569         if ( ((rec_t*)rec)->field_name ) { \
 570                 *out_ptr = range_convert_range(((rec_t*)rec)->field_name); \
 571                 *out_len = (unsigned)strlen(*out_ptr); \
 572         } else { \
 573                 *out_ptr = ""; *out_len = 0; } }
 574
 575
 576 #define UAT_FLD_RANGE(basename,field_name,title,max,desc) \
 577         {#field_name, title, PT_TXTMOD_STRING,{uat_fld_chk_range,basename ## _ ## field_name ## _set_cb,basename ## _ ## field_name ## _tostr_cb},\
 578           {0,0,0},GUINT_TO_POINTER(max),desc,FLDFILL}
 579
 580 #ifdef __cplusplus
 581 }
 582 #endif /* __cplusplus */
 583
 584 #endif /* __UAT_H__ */