Sergii Dmytruk | 04bd965 | 2023-11-17 19:31:20 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 2 | |
| 3 | #include "data.h" |
| 4 | |
| 5 | #include <ctype.h> |
| 6 | #include <limits.h> |
| 7 | #include <stdint.h> |
| 8 | #include <stdio.h> |
| 9 | #include <stdlib.h> |
| 10 | #include <string.h> |
| 11 | |
| 12 | #include "utils.h" |
| 13 | |
| 14 | void print_data(const uint8_t data[], size_t data_size, enum data_type type) |
| 15 | { |
| 16 | if (data_size == 0) |
| 17 | return; |
| 18 | |
| 19 | switch (type) { |
| 20 | case DATA_TYPE_BOOL: |
| 21 | bool value = false; |
| 22 | for (size_t i = 0; i < data_size; ++i) { |
| 23 | if (data[i] != 0) { |
| 24 | value = true; |
| 25 | break; |
| 26 | } |
| 27 | } |
| 28 | printf("%s\n", value ? "true" : "false"); |
| 29 | break; |
| 30 | case DATA_TYPE_UINT8: |
| 31 | if (data_size != 1) { |
| 32 | fprintf(stderr, |
| 33 | "warning: expected size of 1, got %zu\n", |
| 34 | data_size); |
| 35 | } |
| 36 | |
| 37 | if (data_size >= 1) |
| 38 | printf("%u\n", *(uint8_t *)data); |
| 39 | break; |
| 40 | case DATA_TYPE_UINT16: |
| 41 | if (data_size != 2) { |
| 42 | fprintf(stderr, |
| 43 | "warning: expected size of 2, got %zu\n", |
| 44 | data_size); |
| 45 | } |
| 46 | |
| 47 | if (data_size >= 2) |
| 48 | printf("%u\n", *(uint16_t *)data); |
| 49 | break; |
| 50 | case DATA_TYPE_UINT32: |
| 51 | if (data_size != 4) { |
| 52 | fprintf(stderr, |
| 53 | "warning: expected size of 4, got %zu\n", |
| 54 | data_size); |
| 55 | } |
| 56 | |
| 57 | if (data_size >= 4) |
| 58 | printf("%u\n", *(uint32_t *)data); |
| 59 | break; |
| 60 | case DATA_TYPE_ASCII: |
| 61 | for (size_t i = 0; i < data_size; ++i) { |
| 62 | char c = data[i]; |
| 63 | if (isprint(c)) |
| 64 | printf("%c", c); |
| 65 | } |
| 66 | printf("\n"); |
| 67 | break; |
| 68 | case DATA_TYPE_UNICODE: |
| 69 | char *chars = to_chars((const CHAR16 *)data, data_size); |
| 70 | printf("%s\n", chars); |
| 71 | free(chars); |
| 72 | break; |
| 73 | case DATA_TYPE_RAW: |
| 74 | fwrite(data, 1, data_size, stdout); |
| 75 | break; |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | static uint64_t parse_uint(const char source[], |
| 80 | const char type[], |
| 81 | unsigned long long max) |
| 82 | { |
| 83 | char *end; |
| 84 | unsigned long long uint = strtoull(source, &end, /*base=*/0); |
| 85 | if (*end != '\0') { |
| 86 | fprintf(stderr, "Trailing characters in \"%s\": %s\n", |
| 87 | source, end); |
| 88 | return UINT64_MAX; |
| 89 | } |
| 90 | if (uint > max) { |
| 91 | fprintf(stderr, "Invalid %s value: %llu\n", type, uint); |
| 92 | return UINT64_MAX; |
| 93 | } |
| 94 | |
| 95 | return uint; |
| 96 | } |
| 97 | |
| 98 | void *make_data(const char source[], size_t *data_size, enum data_type type) |
| 99 | { |
| 100 | switch (type) { |
| 101 | void *data; |
| 102 | bool boolean; |
| 103 | unsigned long long uint; |
| 104 | |
| 105 | case DATA_TYPE_BOOL: |
| 106 | if (str_eq(source, "true")) { |
| 107 | boolean = true; |
| 108 | } else if (str_eq(source, "false")) { |
| 109 | boolean = false; |
| 110 | } else { |
| 111 | fprintf(stderr, "Invalid boolean value: \"%s\"\n", |
| 112 | source); |
| 113 | return NULL; |
| 114 | } |
| 115 | |
| 116 | *data_size = 1; |
| 117 | data = xmalloc(*data_size); |
| 118 | *(uint8_t *)data = boolean; |
| 119 | return data; |
| 120 | case DATA_TYPE_UINT8: |
| 121 | uint = parse_uint(source, "uint8", UINT8_MAX); |
| 122 | if (uint == UINT64_MAX) |
| 123 | return NULL; |
| 124 | |
| 125 | *data_size = 1; |
| 126 | data = xmalloc(*data_size); |
| 127 | *(uint8_t *)data = uint; |
| 128 | return data; |
| 129 | case DATA_TYPE_UINT16: |
| 130 | uint = parse_uint(source, "uint16", UINT16_MAX); |
| 131 | if (uint == UINT64_MAX) |
| 132 | return NULL; |
| 133 | |
| 134 | *data_size = 2; |
| 135 | data = xmalloc(*data_size); |
| 136 | *(uint16_t *)data = uint; |
| 137 | return data; |
| 138 | case DATA_TYPE_UINT32: |
| 139 | uint = parse_uint(source, "uint32", UINT32_MAX); |
| 140 | if (uint == UINT64_MAX) |
| 141 | return NULL; |
| 142 | |
| 143 | *data_size = 4; |
| 144 | data = xmalloc(*data_size); |
| 145 | *(uint32_t *)data = uint; |
| 146 | return data; |
| 147 | case DATA_TYPE_ASCII: |
| 148 | *data_size = strlen(source) + 1; |
| 149 | return strdup(source); |
| 150 | case DATA_TYPE_UNICODE: |
| 151 | return to_uchars(source, data_size); |
| 152 | case DATA_TYPE_RAW: |
| 153 | fprintf(stderr, "Raw data type is output only\n"); |
| 154 | return NULL; |
| 155 | } |
| 156 | |
| 157 | return NULL; |
| 158 | } |
| 159 | |
| 160 | bool parse_data_type(const char str[], enum data_type *type) |
| 161 | { |
| 162 | if (str_eq(str, "bool")) |
| 163 | *type = DATA_TYPE_BOOL; |
| 164 | else if (str_eq(str, "uint8")) |
| 165 | *type = DATA_TYPE_UINT8; |
| 166 | else if (str_eq(str, "uint16")) |
| 167 | *type = DATA_TYPE_UINT16; |
| 168 | else if (str_eq(str, "uint32")) |
| 169 | *type = DATA_TYPE_UINT32; |
| 170 | else if (str_eq(str, "ascii")) |
| 171 | *type = DATA_TYPE_ASCII; |
| 172 | else if (str_eq(str, "unicode")) |
| 173 | *type = DATA_TYPE_UNICODE; |
| 174 | else if (str_eq(str, "raw")) |
| 175 | *type = DATA_TYPE_RAW; |
| 176 | else |
| 177 | return false; |
| 178 | |
| 179 | return true; |
| 180 | } |