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Annotation of embedaddon/libpdel/structs/type/structs_type_id.c, revision 1.1.1.1

1.1       misho       1: 
                      2: /*
                      3:  * Copyright (c) 2001-2002 Packet Design, LLC.
                      4:  * All rights reserved.
                      5:  * 
                      6:  * Subject to the following obligations and disclaimer of warranty,
                      7:  * use and redistribution of this software, in source or object code
                      8:  * forms, with or without modifications are expressly permitted by
                      9:  * Packet Design; provided, however, that:
                     10:  * 
                     11:  *    (i)  Any and all reproductions of the source or object code
                     12:  *         must include the copyright notice above and the following
                     13:  *         disclaimer of warranties; and
                     14:  *    (ii) No rights are granted, in any manner or form, to use
                     15:  *         Packet Design trademarks, including the mark "PACKET DESIGN"
                     16:  *         on advertising, endorsements, or otherwise except as such
                     17:  *         appears in the above copyright notice or in the software.
                     18:  * 
                     19:  * THIS SOFTWARE IS BEING PROVIDED BY PACKET DESIGN "AS IS", AND
                     20:  * TO THE MAXIMUM EXTENT PERMITTED BY LAW, PACKET DESIGN MAKES NO
                     21:  * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING
                     22:  * THIS SOFTWARE, INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED
                     23:  * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE,
                     24:  * OR NON-INFRINGEMENT.  PACKET DESIGN DOES NOT WARRANT, GUARANTEE,
                     25:  * OR MAKE ANY REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS
                     26:  * OF THE USE OF THIS SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY,
                     27:  * RELIABILITY OR OTHERWISE.  IN NO EVENT SHALL PACKET DESIGN BE
                     28:  * LIABLE FOR ANY DAMAGES RESULTING FROM OR ARISING OUT OF ANY USE
                     29:  * OF THIS SOFTWARE, INCLUDING WITHOUT LIMITATION, ANY DIRECT,
                     30:  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, PUNITIVE, OR CONSEQUENTIAL
                     31:  * DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, LOSS OF
                     32:  * USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY THEORY OF
                     33:  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
                     34:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
                     35:  * THE USE OF THIS SOFTWARE, EVEN IF PACKET DESIGN IS ADVISED OF
                     36:  * THE POSSIBILITY OF SUCH DAMAGE.
                     37:  *
                     38:  * Author: Archie Cobbs <archie@freebsd.org>
                     39:  */
                     40: 
                     41: #include <sys/types.h>
                     42: 
                     43: #include <stdio.h>
                     44: #include <stdlib.h>
                     45: #include <stdarg.h>
                     46: #include <string.h>
                     47: #include <assert.h>
                     48: #include <errno.h>
                     49: 
                     50: #include "structs/structs.h"
                     51: #include "structs/type/array.h"
                     52: #include "structs/type/id.h"
                     53: #include "util/typed_mem.h"
                     54: 
                     55: /*********************************************************************
                     56:                        IDENTIFIER TYPES
                     57: *********************************************************************/
                     58: 
                     59: int
                     60: structs_id_init(const struct structs_type *type, void *data)
                     61: {
                     62:        const struct structs_id *const ids = type->args[0].v;
                     63: 
                     64:        switch (type->size) {
                     65:        case 1:
                     66:            {
                     67:                const u_int8_t value = (u_int8_t)ids[0].value;
                     68: 
                     69:                memcpy(data, &value, type->size);
                     70:                break;
                     71:            }
                     72:        case 2:
                     73:            {
                     74:                const u_int16_t value = (u_int16_t)ids[0].value;
                     75: 
                     76:                memcpy(data, &value, type->size);
                     77:                break;
                     78:            }
                     79:        case 4:
                     80:            {
                     81:                const u_int32_t value = (u_int32_t)ids[0].value;
                     82: 
                     83:                memcpy(data, &value, type->size);
                     84:                break;
                     85:            }
                     86:        default:
                     87:                assert(0);
                     88:        }
                     89:        return (0);
                     90: }
                     91: 
                     92: char *
                     93: structs_id_ascify(const struct structs_type *type,
                     94:        const char *mtype, const void *data)
                     95: {
                     96:        const struct structs_id *id;
                     97:        u_int32_t value = 0;
                     98: 
                     99:        switch (type->size) {
                    100:        case 1:
                    101:                value = *((u_int8_t *)data);
                    102:                break;
                    103:        case 2:
                    104:                value = *((u_int16_t *)data);
                    105:                break;
                    106:        case 4:
                    107:                value = *((u_int32_t *)data);
                    108:                break;
                    109:        default:
                    110:                assert(0);
                    111:        }
                    112:        for (id = type->args[0].v; id->id != NULL; id++) {
                    113:                if (value == id->value)
                    114:                        return (STRDUP(mtype, id->id));
                    115:        }
                    116:        return (STRDUP(mtype, "INVALID"));
                    117: }
                    118: 
                    119: int
                    120: structs_id_binify(const struct structs_type *type,
                    121:        const char *ascii, void *data, char *ebuf, size_t emax)
                    122: {
                    123:        const struct structs_id *id;
                    124: 
                    125:        for (id = type->args[0].v; id->id != NULL; id++) {
                    126:                int (*const cmp)(const char *, const char *)
                    127:                    = id->imatch ? strcasecmp : strcmp;
                    128: 
                    129:                if ((*cmp)(ascii, id->id) == 0) {
                    130:                        switch (type->size) {
                    131:                        case 1:
                    132:                                *((u_int8_t *)data) = id->value;
                    133:                                break;
                    134:                        case 2:
                    135:                                *((u_int16_t *)data) = id->value;
                    136:                                break;
                    137:                        case 4:
                    138:                                *((u_int32_t *)data) = id->value;
                    139:                                break;
                    140:                        default:
                    141:                                assert(0);
                    142:                        }
                    143:                        return (0);
                    144:                }
                    145:        }
                    146:        snprintf(ebuf, emax, "invalid value \"%s\"", ascii);
                    147:        errno = EINVAL;
                    148:        return (-1);
                    149: }
                    150: