/* Replay a remote debug session logfile for GDB.
- Copyright (C) 1996-2014 Free Software Foundation, Inc.
+ Copyright (C) 1996-2020 Free Software Foundation, Inc.
Written by Fred Fish (fnf@cygnus.com) from pieces of gdbserver.
This file is part of GDB.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
-#include "config.h"
-#include "build-gnulib-gdbserver/config.h"
-#include "version.h"
+#include "gdbsupport/common-defs.h"
+#include "gdbsupport/version.h"
-#include <stdio.h>
#if HAVE_SYS_FILE_H
#include <sys/file.h>
#endif
#if HAVE_FCNTL_H
#include <fcntl.h>
#endif
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
#include <unistd.h>
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#include <netinet/tcp.h>
#endif
-#include <alloca.h>
-
#if USE_WIN32API
-#include <winsock2.h>
+#include <ws2tcpip.h>
#endif
+#include "gdbsupport/netstuff.h"
+#include "gdbsupport/rsp-low.h"
+
#ifndef HAVE_SOCKLEN_T
typedef int socklen_t;
#endif
#endif /* __MINGW32CE__ */
-/* Print the system error message for errno, and also mention STRING
- as the file name for which the error was encountered.
- Then return to command level. */
-
static void
-perror_with_name (const char *string)
-{
-#ifndef STDC_HEADERS
- extern int errno;
-#endif
- const char *err;
- char *combined;
-
- err = strerror (errno);
- if (err == NULL)
- err = "unknown error";
-
- combined = (char *) alloca (strlen (err) + strlen (string) + 3);
- strcpy (combined, string);
- strcat (combined, ": ");
- strcat (combined, err);
- fprintf (stderr, "\n%s.\n", combined);
- fflush (stderr);
- exit (1);
-}
-
-static void
-sync_error (FILE *fp, char *desc, int expect, int got)
+sync_error (FILE *fp, const char *desc, int expect, int got)
{
fprintf (stderr, "\n%s\n", desc);
fprintf (stderr, "At logfile offset %ld, expected '0x%x' got '0x%x'\n",
static void
remote_open (char *name)
{
- if (!strchr (name, ':'))
+ char *last_colon = strrchr (name, ':');
+
+ if (last_colon == NULL)
{
fprintf (stderr, "%s: Must specify tcp connection as host:addr\n", name);
fflush (stderr);
exit (1);
}
- else
- {
+
#ifdef USE_WIN32API
- static int winsock_initialized;
+ static int winsock_initialized;
#endif
- char *port_str;
- int port;
- struct sockaddr_in sockaddr;
- socklen_t tmp;
- int tmp_desc;
+ int tmp;
+ int tmp_desc;
+ struct addrinfo hint;
+ struct addrinfo *ainfo;
- port_str = strchr (name, ':');
+ memset (&hint, 0, sizeof (hint));
+ /* Assume no prefix will be passed, therefore we should use
+ AF_UNSPEC. */
+ hint.ai_family = AF_UNSPEC;
+ hint.ai_socktype = SOCK_STREAM;
+ hint.ai_protocol = IPPROTO_TCP;
- port = atoi (port_str + 1);
+ parsed_connection_spec parsed = parse_connection_spec (name, &hint);
+
+ if (parsed.port_str.empty ())
+ error (_("Missing port on hostname '%s'"), name);
#ifdef USE_WIN32API
- if (!winsock_initialized)
- {
- WSADATA wsad;
+ if (!winsock_initialized)
+ {
+ WSADATA wsad;
- WSAStartup (MAKEWORD (1, 0), &wsad);
- winsock_initialized = 1;
- }
+ WSAStartup (MAKEWORD (1, 0), &wsad);
+ winsock_initialized = 1;
+ }
#endif
- tmp_desc = socket (PF_INET, SOCK_STREAM, 0);
- if (tmp_desc == -1)
- perror_with_name ("Can't open socket");
+ int r = getaddrinfo (parsed.host_str.c_str (), parsed.port_str.c_str (),
+ &hint, &ainfo);
- /* Allow rapid reuse of this port. */
- tmp = 1;
- setsockopt (tmp_desc, SOL_SOCKET, SO_REUSEADDR, (char *) &tmp,
- sizeof (tmp));
+ if (r != 0)
+ {
+ fprintf (stderr, "%s:%s: cannot resolve name: %s\n",
+ parsed.host_str.c_str (), parsed.port_str.c_str (),
+ gai_strerror (r));
+ fflush (stderr);
+ exit (1);
+ }
+
+ scoped_free_addrinfo free_ainfo (ainfo);
+
+ struct addrinfo *p;
+
+ for (p = ainfo; p != NULL; p = p->ai_next)
+ {
+ tmp_desc = socket (p->ai_family, p->ai_socktype, p->ai_protocol);
+
+ if (tmp_desc >= 0)
+ break;
+ }
+
+ if (p == NULL)
+ perror_with_name ("Cannot open socket");
+
+ /* Allow rapid reuse of this port. */
+ tmp = 1;
+ setsockopt (tmp_desc, SOL_SOCKET, SO_REUSEADDR, (char *) &tmp,
+ sizeof (tmp));
+
+ switch (p->ai_family)
+ {
+ case AF_INET:
+ ((struct sockaddr_in *) p->ai_addr)->sin_addr.s_addr = INADDR_ANY;
+ break;
+ case AF_INET6:
+ ((struct sockaddr_in6 *) p->ai_addr)->sin6_addr = in6addr_any;
+ break;
+ default:
+ fprintf (stderr, "Invalid 'ai_family' %d\n", p->ai_family);
+ exit (1);
+ }
+
+ if (bind (tmp_desc, p->ai_addr, p->ai_addrlen) != 0)
+ perror_with_name ("Can't bind address");
+
+ if (p->ai_socktype == SOCK_DGRAM)
+ remote_desc = tmp_desc;
+ else
+ {
+ struct sockaddr_storage sockaddr;
+ socklen_t sockaddrsize = sizeof (sockaddr);
+ char orig_host[GDB_NI_MAX_ADDR], orig_port[GDB_NI_MAX_PORT];
- sockaddr.sin_family = PF_INET;
- sockaddr.sin_port = htons (port);
- sockaddr.sin_addr.s_addr = INADDR_ANY;
+ if (listen (tmp_desc, 1) != 0)
+ perror_with_name ("Can't listen on socket");
- if (bind (tmp_desc, (struct sockaddr *) &sockaddr, sizeof (sockaddr))
- || listen (tmp_desc, 1))
- perror_with_name ("Can't bind address");
+ remote_desc = accept (tmp_desc, (struct sockaddr *) &sockaddr,
+ &sockaddrsize);
- tmp = sizeof (sockaddr);
- remote_desc = accept (tmp_desc, (struct sockaddr *) &sockaddr, &tmp);
if (remote_desc == -1)
perror_with_name ("Accept failed");
setsockopt (remote_desc, IPPROTO_TCP, TCP_NODELAY,
(char *) &tmp, sizeof (tmp));
+ if (getnameinfo ((struct sockaddr *) &sockaddr, sockaddrsize,
+ orig_host, sizeof (orig_host),
+ orig_port, sizeof (orig_port),
+ NI_NUMERICHOST | NI_NUMERICSERV) == 0)
+ {
+ fprintf (stderr, "Remote debugging from host %s, port %s\n",
+ orig_host, orig_port);
+ fflush (stderr);
+ }
+
#ifndef USE_WIN32API
close (tmp_desc); /* No longer need this */
fflush (stderr);
}
-static int
-tohex (int ch)
-{
- if (ch >= '0' && ch <= '9')
- {
- return (ch - '0');
- }
- if (ch >= 'A' && ch <= 'F')
- {
- return (ch - 'A' + 10);
- }
- if (ch >= 'a' && ch <= 'f')
- {
- return (ch - 'a' + 10);
- }
- fprintf (stderr, "\nInvalid hex digit '%c'\n", ch);
- fflush (stderr);
- exit (1);
-}
-
static int
logchar (FILE *fp)
{
int ch2;
ch = fgetc (fp);
- fputc (ch, stdout);
- fflush (stdout);
+ if (ch != '\r')
+ {
+ fputc (ch, stdout);
+ fflush (stdout);
+ }
switch (ch)
{
+ /* Treat \r\n as a newline. */
+ case '\r':
+ ch = fgetc (fp);
+ if (ch == '\n')
+ ch = EOL;
+ else
+ {
+ ungetc (ch, fp);
+ ch = '\r';
+ }
+ fputc (ch == EOL ? '\n' : '\r', stdout);
+ fflush (stdout);
+ break;
case '\n':
ch = EOL;
break;
ch2 = fgetc (fp);
fputc (ch2, stdout);
fflush (stdout);
- ch = tohex (ch2) << 4;
+ ch = fromhex (ch2) << 4;
ch2 = fgetc (fp);
fputc (ch2, stdout);
fflush (stdout);
- ch |= tohex (ch2);
+ ch |= fromhex (ch2);
break;
default:
/* Treat any other char as just itself */
gdbreplay_version (void)
{
printf ("GNU gdbreplay %s%s\n"
- "Copyright (C) 2015 Free Software Foundation, Inc.\n"
+ "Copyright (C) 2020 Free Software Foundation, Inc.\n"
"gdbreplay is free software, covered by "
"the GNU General Public License.\n"
"This gdbreplay was configured as \"%s\"\n",
static void
gdbreplay_usage (FILE *stream)
{
- fprintf (stream, "Usage:\tgdbreplay <logfile> <host:port>\n");
+ fprintf (stream, "Usage:\tgdbreplay LOGFILE HOST:PORT\n");
if (REPORT_BUGS_TO[0] && stream == stdout)
fprintf (stream, "Report bugs to \"%s\".\n", REPORT_BUGS_TO);
}
-int
-main (int argc, char *argv[])
+/* Main function. This is called by the real "main" function,
+ wrapped in a TRY_CATCH that handles any uncaught exceptions. */
+
+static void ATTRIBUTE_NORETURN
+captured_main (int argc, char *argv[])
{
FILE *fp;
int ch;
remote_close ();
exit (0);
}
+
+int
+main (int argc, char *argv[])
+{
+ try
+ {
+ captured_main (argc, argv);
+ }
+ catch (const gdb_exception &exception)
+ {
+ if (exception.reason == RETURN_ERROR)
+ {
+ fflush (stdout);
+ fprintf (stderr, "%s\n", exception.what ());
+ }
+
+ exit (1);
+ }
+
+ gdb_assert_not_reached ("captured_main should never return");
+}
projects / deliverable / binutils-gdb.git / blobdiff