* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
*
* This program is a single-threaded process.
*
- * This program is intended to be highly portable and as such it must be kept as
- * simple as possible, due to this the only signal handling mechanisms used will
- * be those of ANSI C, and used only in the most basic form which is good enough
- * for the purpose of this program.
+ * This program is intended to be highly portable and as such it must be kept
+ * as simple as possible, due to this the only signal handling mechanisms used
+ * will be those of ANSI C, and used only in the most basic form which is good
+ * enough for the purpose of this program.
*
* For the above reason and the specific needs of this program signals SIGHUP,
- * SIGPIPE and SIGALRM will be simply ignored on systems where this can be done.
- * If possible, signals SIGINT and SIGTERM will be handled by this program as an
- * indication to cleanup and finish execution as soon as possible. This will be
- * achieved with a single signal handler 'exit_signal_handler' for both signals.
+ * SIGPIPE and SIGALRM will be simply ignored on systems where this can be
+ * done. If possible, signals SIGINT and SIGTERM will be handled by this
+ * program as an indication to cleanup and finish execution as soon as
+ * possible. This will be achieved with a single signal handler
+ * 'exit_signal_handler' for both signals.
*
* The 'exit_signal_handler' upon the first SIGINT or SIGTERM received signal
* will just set to one the global var 'got_exit_signal' storing in global var
* 'exit_signal' the signal that triggered this change.
*
* Nothing fancy that could introduce problems is used, the program at certain
- * points in its normal flow checks if var 'got_exit_signal' is set and in case
- * this is true it just makes its way out of loops and functions in structured
- * and well behaved manner to achieve proper program cleanup and termination.
+ * points in its normal flow checks if var 'got_exit_signal' is set and in
+ * case this is true it just makes its way out of loops and functions in
+ * structured and well behaved manner to achieve proper program cleanup and
+ * termination.
*
- * Even with the above mechanism implemented it is worthwile to note that other
- * signals might still be received, or that there might be systems on which it
- * is not possible to trap and ignore some of the above signals. This implies
- * that for increased portability and reliability the program must be coded as
- * if no signal was being ignored or handled at all. Enjoy it!
+ * Even with the above mechanism implemented it is worthwile to note that
+ * other signals might still be received, or that there might be systems on
+ * which it is not possible to trap and ignore some of the above signals.
+ * This implies that for increased portability and reliability the program
+ * must be coded as if no signal was being ignored or handled at all. Enjoy
+ * it!
*/
#ifdef HAVE_SIGNAL_H
unsigned char *ptr = buffer;
char *optr = data;
ssize_t width=0;
+ int left = sizeof(data);
for(i=0; i<len; i++) {
switch(ptr[i]) {
case '\n':
- sprintf(optr, "\\n");
+ snprintf(optr, left, "\\n");
width += 2;
optr += 2;
+ left-=2;
break;
case '\r':
- sprintf(optr, "\\r");
+ snprintf(optr, left, "\\r");
width += 2;
optr += 2;
+ left-=2;
break;
default:
- sprintf(optr, "%c", (ISGRAPH(ptr[i]) || ptr[i]==0x20) ?ptr[i]:'.');
+ snprintf(optr, left, "%c", (ISGRAPH(ptr[i]) ||
+ ptr[i]==0x20) ?ptr[i]:'.');
width++;
optr++;
+ left--;
break;
}
logmsg("'%s'", data);
width = 0;
optr = data;
+ left = sizeof(data);
}
}
if(width)
return FALSE;
logmsg("Received %c%c%c%c (on stdin)",
- buffer[0], buffer[1], buffer[2], buffer[3] );
+ buffer[0], buffer[1], buffer[2], buffer[3]);
if(!memcmp("PING", buffer, 4)) {
/* send reply on stdout, just proving we are alive */
else if(!memcmp("PORT", buffer, 4)) {
/* Question asking us what PORT number we are listening to.
Replies to PORT with "IPv[num]/[port]" */
- sprintf((char *)buffer, "%s/%hu\n", ipv_inuse, port);
+ snprintf((char *)buffer, sizeof(buffer), "%s/%hu\n", ipv_inuse, port);
buffer_len = (ssize_t)strlen((char *)buffer);
snprintf(data, sizeof(data), "PORT\n%04zx\n", buffer_len);
if(!write_stdout(data, 10))
buffer[5] = '\0';
buffer_len = (ssize_t)strtol((char *)buffer, NULL, 16);
- if (buffer_len > (ssize_t)sizeof(buffer)) {
+ if(buffer_len > (ssize_t)sizeof(buffer)) {
logmsg("ERROR: Buffer size (%zu bytes) too small for data size "
"(%zd bytes)", sizeof(buffer), buffer_len);
return FALSE;
me.sa4.sin_family = AF_INET;
me.sa4.sin_port = htons(connectport);
me.sa4.sin_addr.s_addr = INADDR_ANY;
- if (!addr)
+ if(!addr)
addr = "127.0.0.1";
Curl_inet_pton(AF_INET, addr, &me.sa4.sin_addr);
memset(&me.sa6, 0, sizeof(me.sa6));
me.sa6.sin6_family = AF_INET6;
me.sa6.sin6_port = htons(connectport);
- if (!addr)
+ if(!addr)
addr = "::1";
Curl_inet_pton(AF_INET6, addr, &me.sa6.sin6_addr);
projects / platform / upstream / curl.git / blobdiff