openvt applet by Quy Tonthat

diff --git a/console-tools/Makefile.in b/console-tools/Makefile.in
index bc03356437c02900764170a92c108ae6a1480940..c2c1bad6a7075afc7221834f1258313f9ffce6cd 100644 (file)
--- a/console-tools/Makefile.in
+++ b/console-tools/Makefile.in
@@ -30,6 +30,7 @@ CONSOLETOOLS_DIR-$(CONFIG_DUMPKMAP)   += dumpkmap.o
 CONSOLETOOLS_DIR-$(CONFIG_LOADACM)     += loadacm.o
 CONSOLETOOLS_DIR-$(CONFIG_LOADFONT)    += loadfont.o
 CONSOLETOOLS_DIR-$(CONFIG_LOADKMAP)    += loadkmap.o
+CONSOLETOOLS_DIR-$(CONFIG_OPENVT)      += openvt.o
 CONSOLETOOLS_DIR-$(CONFIG_RESET)       += reset.o
 CONSOLETOOLS_DIR-$(CONFIG_SETKEYCODES) += setkeycodes.o
 

diff --git a/console-tools/config.in b/console-tools/config.in
index 53d5ac6b4e01374717ad19bdde14472855695760..2ea96aec4ecbeb90b05eb4dc4e366ac56cca47ac 100644 (file)
--- a/console-tools/config.in
+++ b/console-tools/config.in
@@ -12,6 +12,7 @@ bool 'dumpkmap'           CONFIG_DUMPKMAP
 bool 'loadacm'     CONFIG_LOADACM
 bool 'loadfont'            CONFIG_LOADFONT
 bool 'loadkmap'            CONFIG_LOADKMAP
+bool 'openvt'      CONFIG_OPENVT
 bool 'reset'       CONFIG_RESET
 bool 'setkeycodes'  CONFIG_SETKEYCODES
 

diff --git a/console-tools/openvt.c b/console-tools/openvt.c
new file mode 100644 (file)
index 0000000..3373edd
--- /dev/null
+++ b/console-tools/openvt.c
@@ -0,0 +1,84 @@
+/* vi: set sw=4 ts=4: */
+
+/*
+ * openvt.c - open a vt to run a command.
+ *
+ * busyboxed by Quy Tonthat <quy@signal3.com>
+ */
+
+/* getopt not needed */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/types.h>
+#include "busybox.h"
+
+#define VTNAME "/dev/tty%d"
+
+int openvt_main(int argc, char **argv)
+{
+       int pid;
+       int fd;
+       int vtno;
+       char vtname[sizeof VTNAME + 2];
+       char * cmd = NULL;
+       char * cmd_args = NULL;
+
+       if (argc < 3)
+        show_usage();
+
+       if (!isdigit(argv[1][0]))
+               show_usage();
+
+       vtno = (int) atol(argv[1]);
+
+       /* if (vtno <= 0 || vtno > 63) */
+       if (vtno <= 0 || vtno > 12)
+               error_msg_and_die("Illegal vt number (%d)", vtno);        
+
+       sprintf(vtname, VTNAME, vtno);
+
+       cmd = argv[2];
+       cmd_args = xmalloc(80);
+       cmd_args[0] = '\0';
+
+       if((pid = fork()) == 0) {
+               /* leave current vt */
+
+#ifdef   ESIX_5_3_2_D
+               if (setpgrp() < 0) {
+#else
+               if (setsid() < 0) {
+#endif
+
+                       perror_msg_and_die("Unable to set new session");          
+               }
+               close(0);                       /* so that new vt becomes stdin */
+
+               /* and grab new one */
+               if ((fd = open(vtname, O_RDWR)) == -1)
+                       perror_msg_and_die("could not open %s", vtname);          
+
+               /* Reassign stdout and sterr */
+               close(1);
+               close(2);
+               dup(fd);
+               dup(fd);
+
+               execvp(cmd, &argv[2]);
+               /*execlp(cmd, cmd_args);*/
+               _exit(1);
+       }
+       return EXIT_SUCCESS;
+}
+
+/*
+Local Variables:
+c-file-style: "linux"
+c-basic-offset: 4
+tab-width: 4
+End:
+*/

diff --git a/include/applets.h b/include/applets.h
index 9117880ade9d394476c9a7ee8aacf276a0e3818c..38d75344f6299095b88c340ff92d4c8360716ecd 100644 (file)
--- a/include/applets.h
+++ b/include/applets.h
@@ -341,6 +341,9 @@
 #ifdef CONFIG_OD
        APPLET(od, od_main, _BB_DIR_USR_BIN, _BB_SUID_NEVER)
 #endif
+#ifdef CONFIG_OPENVT
+       APPLET(openvt, openvt_main, _BB_DIR_USR_BIN, _BB_SUID_NEVER)
+#endif
 #ifdef CONFIG_PASSWD
        APPLET(passwd, passwd_main, _BB_DIR_USR_BIN, _BB_SUID_ALWAYS)
 #endif

diff --git a/include/usage.h b/include/usage.h
index 9e16a085fe9ca83a9e080d319626f586b6dbcf67..98b81cf1dd3aeea4464c6a6b6f50136295073718 100644 (file)
--- a/include/usage.h
+++ b/include/usage.h
@@ -1347,6 +1347,13 @@
        "Write an unambiguous representation, octal bytes by default, of FILE\n"\
        "to standard output.  With no FILE, or when FILE is -, read standard input."
 
+#define openvt_trivial_usage \
+       "<vtnum> <COMMAND> [ARGS...]"
+#define openvt_full_usage \
+       "Start a command on a new virtual terminal"
+#define openvt_example_usage \
+       "openvt 2 /bin/ash\n"
+
 #ifdef CONFIG_FEATURE_SHA1_PASSWORDS
   #define PASSWORD_ALG_TYPES(a) a
 #else