maride/guacamole-spice-protocol
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Measure string output in UTF-8 characters.

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This commit is contained in:
Michael Jumper 2012-07-19 20:03:28 -07:00
parent fb5b4af5ef
commit 6b7fd03503
1 changed files with 37 additions and 1 deletions
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38
libguac/src/protocol.c
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@ -73,10 +73,46 @@
/* Output formatting functions */
ssize_t __guac_utf8_strlen(const char* str) {
/* The current length of the string */
int length = 0;
/* Number of characters before start of next character */
int skip = 0;
while (*str != 0) {
/* If skipping, then skip */
if (skip > 0) skip--;
/* Otherwise, determine next skip value, and increment length */
else {
/* Get next character */
unsigned char c = (unsigned char) *str;
/* Determine skip value (size in bytes of rest of character) */
if ((c >>= 1) == 0x7E) skip = 5;
else if ((c >>= 1) == 0x3E) skip = 4;
else if ((c >>= 1) == 0x1E) skip = 3;
else if ((c >>= 1) == 0x0E) skip = 2;
else if ((c >>= 1) == 0x06) skip = 1;
length++;
}
str++;
}
return length;
}
ssize_t __guac_socket_write_length_string(guac_socket* socket, const char* str) {
return
guac_socket_write_int(socket, strlen(str))
guac_socket_write_int(socket, __guac_utf8_strlen(str))
|| guac_socket_write_string(socket, ".")
|| guac_socket_write_string(socket, str);