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telnet: cleanup comments 

seems comments were mangled during the last cleanup.

Change-Id: If759f62032705c7baffd3973e9717eb7e8a5d17c
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/752
Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
__archive__
Spencer Oliver 2012-07-19 15:11:45 +01:00 committed by Freddie Chopin
parent 246f8492da
commit 40801d21ff
1 changed files with 22 additions and 54 deletions
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76
src/server/telnet_server.c
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@ -155,8 +155,8 @@ static int telnet_new_connection(struct connection *connection)
telnet_write(connection, "\r\n", 2);
}
telnet_write(connection, "\r", 1); /* the prompt is always placed at the line beginning
**/
/* the prompt is always placed at the line beginning */
telnet_write(connection, "\r", 1);
telnet_prompt(connection);
/* initialize history */
@ -213,19 +213,11 @@ static int telnet_input(struct connection *connection)
else {
if (isprint(*buf_p)) { /* printable character */
/* watch buffer size leaving one spare character for
*string null termination */
* string null termination */
if (t_con->line_size == TELNET_LINE_MAX_SIZE-1) {
/* output audible bell if buffer is full */
telnet_write(connection, "\x07", 1); /*
*"\a"
*does
*not
*work,
*at
*least
*on
*windows
**/
/* output audible bell if buffer is full
* "\a" does not work, at least on windows */
telnet_write(connection, "\x07", 1);
} else if (t_con->line_cursor == t_con->line_size) {
telnet_write(connection, buf_p, 1);
t_con->line[t_con->line_size++] = *buf_p;
@ -248,13 +240,10 @@ static int telnet_input(struct connection *connection)
if (*buf_p == 0x1b) { /* escape */
t_con->state = TELNET_STATE_ESCAPE;
t_con->last_escape = '\x00';
} else if ((*buf_p == 0xd) || (*buf_p == 0xa)) { /*
*CR/LF
**/
} else if ((*buf_p == 0xd) || (*buf_p == 0xa)) { /* CR/LF */
int retval;
/* skip over combinations with CR/LF and NUL
*characters */
/* skip over combinations with CR/LF and NUL characters */
if ((bytes_read > 1) && ((*(buf_p + 1) == 0xa) ||
(*(buf_p + 1) == 0xd))) {
buf_p++;
@ -271,10 +260,8 @@ static int telnet_input(struct connection *connection)
if (strcmp(t_con->line, "history") == 0) {
int i;
for (i = 1; i < TELNET_LINE_HISTORY_SIZE; i++) {
/* the t_con->next_history
*line contains empty string
*(unless NULL), thus it is
*not printed */
/* the t_con->next_history line contains empty string
* (unless NULL), thus it is not printed */
char *history_line = t_con->history[(t_con->
next_history + i) %
TELNET_LINE_HISTORY_SIZE];
@ -289,27 +276,23 @@ static int telnet_input(struct connection *connection)
continue;
}
/* save only non-blank not repeating lines
*in the history */
/* save only non-blank not repeating lines in the history */
char *prev_line = t_con->history[(t_con->current_history > 0) ?
t_con->current_history - 1 : TELNET_LINE_HISTORY_SIZE-1];
if (*t_con->line && (prev_line == NULL ||
strcmp(t_con->line, prev_line))) {
/* if the history slot is already
*taken, free it */
/* if the history slot is already taken, free it */
if (t_con->history[t_con->next_history])
free(t_con->history[t_con->next_history]);
/* add line to history */
t_con->history[t_con->next_history] = strdup(t_con->line);
/* wrap history at
*TELNET_LINE_HISTORY_SIZE */
/* wrap history at TELNET_LINE_HISTORY_SIZE */
t_con->next_history = (t_con->next_history + 1) %
TELNET_LINE_HISTORY_SIZE;
/* current history line starts at
*the new entry */
/* current history line starts at the new entry */
t_con->current_history =
t_con->next_history;
@ -320,10 +303,8 @@ static int telnet_input(struct connection *connection)
t_con->line_size = 0;
t_con->line_cursor = -1; /* to supress prompt
*in log callback
*during command
*execution */
/* to suppress prompt in log callback during command execution */
t_con->line_cursor = -1;
retval = command_run_line(command_context, t_con->line);
@ -332,25 +313,14 @@ static int telnet_input(struct connection *connection)
if (retval == ERROR_COMMAND_CLOSE_CONNECTION)
return ERROR_SERVER_REMOTE_CLOSED;
telnet_write(connection, "\r", 1); /*
*the
*prompt
*is
*always
*placed
*at
*the
*line
*beginning
**/
/* the prompt is always * placed at the line beginning */
telnet_write(connection, "\r", 1);
retval = telnet_prompt(connection);
if (retval == ERROR_SERVER_REMOTE_CLOSED)
return ERROR_SERVER_REMOTE_CLOSED;
} else if ((*buf_p == 0x7f) || (*buf_p == 0x8)) { /*
*delete
*character
**/
} else if ((*buf_p == 0x7f) || (*buf_p == 0x8)) { /* delete character */
if (t_con->line_cursor > 0) {
if (t_con->line_cursor != t_con->line_size) {
int i;
@ -372,10 +342,8 @@ static int telnet_input(struct connection *connection)
} else {
t_con->line_size--;
t_con->line_cursor--;
/* back space: move the
*'printer' head one char
*back, overwrite with
*space, move back again */
/* back space: move the 'printer' head one char
* back, overwrite with space, move back again */
telnet_write(connection, "\b \b", 3);
}
}