When the 'msg' command is used from the command line, check for a
synchronous reply, and display it (if any) before exiting. Requested by: phk
This commit is contained in:
Archie Cobbs
parent
a42af91cba
commit
6ebb8ebbd1
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=61880
@ -52,7 +52,6 @@ static int DoCommand(int ac, char **av);
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static int DoInteractive(void);
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static const struct ngcmd *FindCommand(const char *string);
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static int MatchCommand(const struct ngcmd *cmd, const char *s);
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static void DumpAscii(const u_char *buf, int len);
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static void Usage(const char *msg);
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static int ReadCmd(int ac, char **av);
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static int HelpCmd(int ac, char **av);
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@ -229,48 +228,11 @@ DoInteractive(void)
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}
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/* Display any incoming control message */
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while (FD_ISSET(csock, &rfds)) {
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u_char buf[2 * sizeof(struct ng_mesg) + 8192];
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struct ng_mesg *const m = (struct ng_mesg *)buf;
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struct ng_mesg *const ascii = (struct ng_mesg *)m->data;
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char path[NG_PATHLEN+1];
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/* Get incoming message (in binary form) */
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if (NgRecvMsg(csock, m, sizeof(buf), path) < 0) {
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warn("recv incoming message");
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break;
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}
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/* Ask originating node to convert to ASCII */
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if (NgSendMsg(csock, path, NGM_GENERIC_COOKIE,
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NGM_BINARY2ASCII, m,
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sizeof(*m) + m->header.arglen) < 0
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|| NgRecvMsg(csock, m, sizeof(buf), NULL) < 0) {
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printf("Rec'd %s %d from \"%s\":\n",
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(m->header.flags & NGF_RESP) != 0 ?
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"response" : "command",
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m->header.cmd, path);
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if (m->header.arglen == 0)
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printf("No arguments\n");
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else
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DumpAscii(m->data, m->header.arglen);
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break;
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}
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/* Display message in ASCII form */
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printf("Rec'd %s \"%s\" (%d) from \"%s\":\n",
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(ascii->header.flags & NGF_RESP) != 0 ?
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"response" : "command",
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ascii->header.cmdstr, ascii->header.cmd, path);
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if (*ascii->data != '\0')
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printf("Args:\t%s\n", ascii->data);
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else
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printf("No arguments\n");
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break;
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}
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if (FD_ISSET(csock, &rfds))
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MsgRead();
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/* Display any incoming data packet */
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while (FD_ISSET(dsock, &rfds)) {
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if (FD_ISSET(dsock, &rfds)) {
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u_char buf[8192];
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char hook[NG_HOOKLEN + 1];
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int rl;
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@ -278,14 +240,13 @@ DoInteractive(void)
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/* Read packet from socket */
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if ((rl = NgRecvData(dsock,
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buf, sizeof(buf), hook)) < 0)
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err(EX_OSERR, "read(hook)");
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err(EX_OSERR, "reading hook \"%s\"", hook);
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if (rl == 0)
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errx(EX_OSERR, "EOF from hook \"%s\"?", hook);
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/* Write packet to stdout */
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printf("Rec'd data packet on hook \"%s\":\n", hook);
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DumpAscii(buf, rl);
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break;
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}
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/* Get any user input */
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@ -495,7 +456,7 @@ QuitCmd(int ac, char **av)
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/*
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* Dump data in hex and ASCII form
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*/
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static void
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void
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DumpAscii(const u_char *buf, int len)
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{
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char ch, sbuf[100];
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@ -40,7 +40,7 @@
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#include "ngctl.h"
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#define BUF_SIZE 1024
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#define BUF_SIZE 4096
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static int MsgCmd(int ac, char **av);
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@ -80,7 +80,67 @@ MsgCmd(int ac, char **av)
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return(CMDRTN_ERROR);
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}
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/* See if a synchronous reply awaits */
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{
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struct timeval tv;
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fd_set rfds;
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FD_ZERO(&rfds);
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FD_SET(csock, &rfds);
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memset(&tv, 0, sizeof(tv));
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switch (select(csock + 1, &rfds, NULL, NULL, &tv)) {
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case -1:
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err(EX_OSERR, "select");
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case 0:
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break;
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default:
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MsgRead();
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break;
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}
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}
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/* Done */
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return(CMDRTN_OK);
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}
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/*
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* Read and display the next incoming control message
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*/
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void
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MsgRead()
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{
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u_char buf[2 * sizeof(struct ng_mesg) + BUF_SIZE];
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struct ng_mesg *const m = (struct ng_mesg *)buf;
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struct ng_mesg *const ascii = (struct ng_mesg *)m->data;
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char path[NG_PATHLEN+1];
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/* Get incoming message (in binary form) */
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if (NgRecvMsg(csock, m, sizeof(buf), path) < 0) {
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warn("recv incoming message");
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return;
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}
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/* Ask originating node to convert message to ASCII */
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if (NgSendMsg(csock, path, NGM_GENERIC_COOKIE,
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NGM_BINARY2ASCII, m, sizeof(*m) + m->header.arglen) < 0
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|| NgRecvMsg(csock, m, sizeof(buf), NULL) < 0) {
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printf("Rec'd %s %d from \"%s\":\n",
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(m->header.flags & NGF_RESP) != 0 ? "response" : "command",
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m->header.cmd, path);
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if (m->header.arglen == 0)
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printf("No arguments\n");
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else
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DumpAscii(m->data, m->header.arglen);
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return;
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}
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/* Display message in ASCII form */
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printf("Rec'd %s \"%s\" (%d) from \"%s\":\n",
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(ascii->header.flags & NGF_RESP) != 0 ? "response" : "command",
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ascii->header.cmdstr, ascii->header.cmd, path);
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if (*ascii->data != '\0')
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printf("Args:\t%s\n", ascii->data);
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else
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printf("No arguments\n");
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}
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@ -93,3 +93,7 @@ extern const struct ngcmd quit_cmd;
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/* Data and control sockets */
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extern int csock, dsock;
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/* Misc functions */
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extern void MsgRead(void);
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extern void DumpAscii(const u_char *buf, int len);
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