Annotation of embedaddon/libpdel/structs/type/structs_type_boolean.c, revision 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 <ctype.h>
! 48: #include <errno.h>
! 49:
! 50: #include "structs/structs.h"
! 51: #include "structs/type/array.h"
! 52: #include "structs/type/boolean.h"
! 53: #include "util/typed_mem.h"
! 54:
! 55: /*********************************************************************
! 56: BOOLEAN TYPES
! 57: *********************************************************************/
! 58:
! 59: /*
! 60: * Boolean types
! 61: *
! 62: * Type-specific arguments:
! 63: * [int]
! 64: * 0 = stored in a char
! 65: * 1 = stored in an int
! 66: * [int]
! 67: * 0 = True/False
! 68: * 1 = Yes/No
! 69: * 2 = On/Off
! 70: * 3 = Enabled/Disabled
! 71: * 4 = 1/0
! 72: */
! 73:
! 74: /* Macro for defining a boolean type */
! 75: #define STRUCTS_BOOLEAN_TYPE(type, arg1, arg2) { \
! 76: sizeof(type), \
! 77: "boolean", \
! 78: STRUCTS_TYPE_PRIMITIVE, \
! 79: structs_region_init, \
! 80: structs_region_copy, \
! 81: structs_region_equal, \
! 82: structs_boolean_ascify, \
! 83: structs_boolean_binify, \
! 84: structs_region_encode_netorder, \
! 85: structs_region_decode_netorder, \
! 86: structs_nothing_free, \
! 87: { { (void *)arg1 }, { (void *)arg2 } } \
! 88: }
! 89:
! 90: /* ASCII possibilities (not all are used yet) */
! 91: static const char *boolean_strings[][2] = {
! 92: { "False", "True" },
! 93: { "No", "Yes" },
! 94: { "Off", "On" },
! 95: { "Disabled", "Enabled" },
! 96: { "0", "1" },
! 97: { NULL, NULL }
! 98: };
! 99:
! 100: /* Methods */
! 101: static structs_ascify_t structs_boolean_ascify;
! 102: static structs_binify_t structs_boolean_binify;
! 103:
! 104: /* Pre-defined types */
! 105: const struct structs_type structs_type_boolean_char
! 106: = STRUCTS_BOOLEAN_TYPE(char, 0, 0);
! 107: const struct structs_type structs_type_boolean_int
! 108: = STRUCTS_BOOLEAN_TYPE(int, 1, 0);
! 109: const struct structs_type structs_type_boolean_char_01
! 110: = STRUCTS_BOOLEAN_TYPE(char, 0, 4);
! 111: const struct structs_type structs_type_boolean_int_01
! 112: = STRUCTS_BOOLEAN_TYPE(int, 1, 4);
! 113:
! 114: static char *
! 115: structs_boolean_ascify(const struct structs_type *type,
! 116: const char *mtype, const void *data)
! 117: {
! 118: int truth;
! 119:
! 120: truth = type->args[0].i ? *((u_int *)data) : *((u_char *)data);
! 121: return (STRDUP(mtype, boolean_strings[type->args[1].i][!!truth]));
! 122: }
! 123:
! 124: static int
! 125: structs_boolean_binify(const struct structs_type *type,
! 126: const char *ascii, void *data, char *ebuf, size_t emax)
! 127: {
! 128: int truth = 0;
! 129: char buf[64];
! 130: int i;
! 131:
! 132: /* Trim whitespace */
! 133: while (isspace(*ascii))
! 134: ascii++;
! 135: for (i = strlen(ascii); i > 0 && isspace(ascii[i - 1]); i--);
! 136: if (i > sizeof(buf) - 1)
! 137: i = sizeof(buf) - 1;
! 138: strncpy(buf, ascii, i);
! 139: buf[i] = '\0';
! 140:
! 141: /* Compare value */
! 142: for (i = 0; boolean_strings[i][0] != NULL; i++) {
! 143: if (strcasecmp(buf, boolean_strings[i][0]) == 0) {
! 144: truth = 0;
! 145: break;
! 146: } else if (strcasecmp(buf, boolean_strings[i][1]) == 0) {
! 147: truth = 1;
! 148: break;
! 149: }
! 150: }
! 151: if (boolean_strings[i][0] == NULL) {
! 152: strlcpy(ebuf, "invalid Boolean value", emax);
! 153: errno = EINVAL;
! 154: return (-1);
! 155: }
! 156: if (type->args[0].i)
! 157: *((u_int *)data) = truth;
! 158: else
! 159: *((u_char *)data) = truth;
! 160: return (0);
! 161: }
! 162:
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