crypto/asn1/a_utf8.c

67  * to the string and the length of the string. It sets 'value' to the value of
79     unsigned long value;
85     /* Check syntax and work out the encoded value (if correct) */
87         value = *p++ & 0x7f;
94         value = (*p++ & 0x1f) << 6;
95         value |= *p++ & 0x3f;
96         if (value < 0x80)
105         value = (*p++ & 0xf) << 12;
106         value |= (*p++ & 0x3f) << 6;
107         value |= *p++ & 0x3f;
108         if (value < 0x800)
118         value = ((unsigned long)(*p++ & 0x7)) << 18;
119         value |= (*p++ & 0x3f) << 12;
120         value |= (*p++ & 0x3f) << 6;
121         value |= *p++ & 0x3f;
122         if (value < 0x10000)
133         value = ((unsigned long)(*p++ & 0x3)) << 24;
134         value |= ((unsigned long)(*p++ & 0x3f)) << 18;
135         value |= ((unsigned long)(*p++ & 0x3f)) << 12;
136         value |= (*p++ & 0x3f) << 6;
137         value |= *p++ & 0x3f;
138         if (value < 0x200000)
150         value = ((unsigned long)(*p++ & 0x1)) << 30;
151         value |= ((unsigned long)(*p++ & 0x3f)) << 24;
152         value |= ((unsigned long)(*p++ & 0x3f)) << 18;
153         value |= ((unsigned long)(*p++ & 0x3f)) << 12;
154         value |= (*p++ & 0x3f) << 6;
155         value |= *p++ & 0x3f;
156         if (value < 0x4000000)
161     *val = value;
166  * This takes a character 'value' and writes the UTF8 encoded value in 'str'
173 int UTF8_putc(unsigned char *str, int len, unsigned long value)
179     if (value < 0x80) {
181             *str = (unsigned char)value;
184     if (value < 0x800) {
188             *str++ = (unsigned char)(((value >> 6) & 0x1f) | 0xc0);
189             *str = (unsigned char)((value & 0x3f) | 0x80);
193     if (value < 0x10000) {
197             *str++ = (unsigned char)(((value >> 12) & 0xf) | 0xe0);
198             *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80);
199             *str = (unsigned char)((value & 0x3f) | 0x80);
203     if (value < 0x200000) {
207             *str++ = (unsigned char)(((value >> 18) & 0x7) | 0xf0);
208             *str++ = (unsigned char)(((value >> 12) & 0x3f) | 0x80);
209             *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80);
210             *str = (unsigned char)((value & 0x3f) | 0x80);
214     if (value < 0x4000000) {
218             *str++ = (unsigned char)(((value >> 24) & 0x3) | 0xf8);
219             *str++ = (unsigned char)(((value >> 18) & 0x3f) | 0x80);
220             *str++ = (unsigned char)(((value >> 12) & 0x3f) | 0x80);
221             *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80);
222             *str = (unsigned char)((value & 0x3f) | 0x80);
229         *str++ = (unsigned char)(((value >> 30) & 0x1) | 0xfc);
230         *str++ = (unsigned char)(((value >> 24) & 0x3f) | 0x80);
231         *str++ = (unsigned char)(((value >> 18) & 0x3f) | 0x80);
232         *str++ = (unsigned char)(((value >> 12) & 0x3f) | 0x80);
233         *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80);
234         *str = (unsigned char)((value & 0x3f) | 0x80);