Pastable version of Socket read line in C

<pre class='prettyprint' language='c'>int socket_read_line_alloc(int sock, char** out) {
        /* current buffer size */
        unsigned int size = 128;
        /* current location in buffer */
        int i = 0;
        /* whether the previous char was a \r */
        int cr = 0;
        char ch;

/* result, grows as we need it to */
        *out = malloc(sizeof(char) * size);

for ( ; ; ) {
                if (recv(sock, &amp;ch, 1, 0) == -1) {
                        return -1;
                }

if (i &gt;= size) {
                        /* grow buffer */
                        size *= 2;
                        *out = realloc(*out, size);
                }

if (ch == '\n') {
                        /* if preceded by a \r, we overwrite it */
                        if (cr) {
                                assert(i &gt; 0);
                                i--;
                        }

(*out)[i] = '\0';
                        break;

} else {
                        cr = (ch == '\r' ? 1 : 0);
                        (*out)[i] = ch;
                }

i++;
        }

return i + 1;
}</pre>
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Pastable version of Socket read line in C