diff options
Diffstat (limited to 'gdb/ser-tcp.c')
| -rw-r--r-- | gdb/ser-tcp.c | 54 |
1 files changed, 36 insertions, 18 deletions
diff --git a/gdb/ser-tcp.c b/gdb/ser-tcp.c index 6dc82846b6f..cef62699ae0 100644 --- a/gdb/ser-tcp.c +++ b/gdb/ser-tcp.c @@ -38,12 +38,13 @@ #include <netdb.h> #include <sys/socket.h> #include <netinet/tcp.h> +#include <netinet/udp.h> #include <signal.h> #include "gdb_string.h" -static int tcp_open (struct serial *scb, const char *name); -static void tcp_close (struct serial *scb); +static int net_open (struct serial *scb, const char *name); +static void net_close (struct serial *scb); extern int (*ui_loop_hook) (int); void _initialize_ser_tcp (void); @@ -55,17 +56,27 @@ void _initialize_ser_tcp (void); /* Open a tcp socket */ static int -tcp_open (struct serial *scb, const char *name) +net_open (struct serial *scb, const char *name) { char *port_str, hostname[100]; int n, port, tmp; + int use_udp; struct hostent *hostent; struct sockaddr_in sockaddr; + use_udp = 0; + if (strncmp (name, "udp:", 4) == 0) + { + use_udp = 1; + name = name + 4; + } + else if (strncmp (name, "tcp:", 4) == 0) + name = name + 4; + port_str = strchr (name, ':'); if (!port_str) - error ("tcp_open: No colon in host name!"); /* Shouldn't ever happen */ + error ("net_open: No colon in host name!"); /* Shouldn't ever happen */ tmp = min (port_str - name, (int) sizeof hostname - 1); strncpy (hostname, name, tmp); /* Don't want colon */ @@ -84,7 +95,11 @@ tcp_open (struct serial *scb, const char *name) return -1; } - scb->fd = socket (PF_INET, SOCK_STREAM, 0); + if (use_udp) + scb->fd = socket (PF_INET, SOCK_DGRAM, 0); + else + scb->fd = socket (PF_INET, SOCK_STREAM, 0); + if (scb->fd < 0) return -1; @@ -102,7 +117,7 @@ tcp_open (struct serial *scb, const char *name) if (n < 0 && errno != EINPROGRESS) { - tcp_close (scb); + net_close (scb); return -1; } @@ -124,7 +139,7 @@ tcp_open (struct serial *scb, const char *name) if (ui_loop_hook (0)) { errno = EINTR; - tcp_close (scb); + net_close (scb); return -1; } } @@ -142,7 +157,7 @@ tcp_open (struct serial *scb, const char *name) { if (polls > TIMEOUT * POLL_INTERVAL) errno = ETIMEDOUT; - tcp_close (scb); + net_close (scb); return -1; } } @@ -156,20 +171,23 @@ tcp_open (struct serial *scb, const char *name) { if (err) errno = err; - tcp_close (scb); + net_close (scb); return -1; } } - + /* turn off nonblocking */ tmp = 0; ioctl (scb->fd, FIONBIO, &tmp); - /* Disable Nagle algorithm. Needed in some cases. */ - tmp = 1; - setsockopt (scb->fd, IPPROTO_TCP, TCP_NODELAY, - (char *)&tmp, sizeof (tmp)); - + if (use_udp == 0) + { + /* Disable Nagle algorithm. Needed in some cases. */ + tmp = 1; + setsockopt (scb->fd, IPPROTO_TCP, TCP_NODELAY, + (char *)&tmp, sizeof (tmp)); + } + /* If we don't do this, then GDB simply exits when the remote side dies. */ signal (SIGPIPE, SIG_IGN); @@ -178,7 +196,7 @@ tcp_open (struct serial *scb, const char *name) } static void -tcp_close (struct serial *scb) +net_close (struct serial *scb) { if (scb->fd < 0) return; @@ -194,8 +212,8 @@ _initialize_ser_tcp (void) memset (ops, sizeof (struct serial_ops), 0); ops->name = "tcp"; ops->next = 0; - ops->open = tcp_open; - ops->close = tcp_close; + ops->open = net_open; + ops->close = net_close; ops->readchar = ser_unix_readchar; ops->write = ser_unix_write; ops->flush_output = ser_unix_nop_flush_output; |