#include <string.h> /* for memset */
#include <unistd.h> /* for fork/exec */
+#include <sys/types.h> /* for wait */
+#include <sys/wait.h> /* for wait */
+
#include "pnd_container.h"
#include "pnd_pxml.h"
#include "pnd_apps.h"
+#include "pnd_logger.h"
+
+static char apps_exec_runline [ 1024 ];
+
+char *pnd_apps_exec_runline ( void ) {
+ return ( apps_exec_runline );
+}
+
+unsigned char pnd_apps_exec ( char *pndrun, char *fullpath, char *unique_id,
+ char *rel_exec, char *rel_startdir,
+ char *args,
+ unsigned int clockspeed, unsigned int options )
+{
+ char *argv [ 60 ];
+ char s_clockspeed [ 100 ];
+ int f;
+
+ //printf ( "Entering pnd_apps_exec\n" );
+
+ if ( ! pndrun ) {
+ return ( 0 );
+ }
+
+ if ( ! fullpath ) {
+ return ( 0 );
+ }
-unsigned char pnd_apps_exec ( char *pndrun, char *fullpath, char *unique_id, char *rel_exec, char *rel_startdir, unsigned int clockspeed ) {
- char *argv [ 20 ];
- int f, i;
+ if ( ! unique_id ) {
+ return ( 0 );
+ }
+
+ if ( ! rel_exec ) {
+ return ( 0 );
+ }
- printf ( "Entering pnd_apps_exec\n" );
#if 0
printf ( " runscript: %s\n", pndrun );
printf ( " path: %s\n", fullpath );
argv [ f++ ] = fullpath;
argv [ f++ ] = "-e";
argv [ f++ ] = rel_exec;
+ if ( rel_startdir ) {
+ argv [ f++ ] = "-s";
+ argv [ f++ ] = rel_startdir;
+ }
+ if ( args ) {
+ argv [ f++ ] = "-a";
+ argv [ f++ ] = args;
+ }
+ argv [ f++ ] = "-b";
+ argv [ f++ ] = unique_id;
+ if ( clockspeed ) {
+ argv [ f++ ] = "-c";
+ snprintf ( s_clockspeed, 100, "%u", clockspeed );
+ argv [ f++ ] = s_clockspeed;
+ }
+
// skip -a (arguments) for now
- //argv [ f++ ] = "-b";
- //argv [ f++ ] = baename;
+ if ( options & PND_EXEC_OPTION_NOUNION ) {
+ argv [ f++ ] = "-n"; // no union for now
+ }
- argv [ f++ ] = "-u"; // no union for now
+ if ( options & PND_EXEC_OPTION_NOX11 ) {
+ argv [ f++ ] = "-x"; // shut down X!
+ }
+
+ // finish
argv [ f++ ] = NULL; // for execv
+ // stop here?
+ if ( options & PND_EXEC_OPTION_NORUN ) {
+ unsigned char i;
+ bzero ( apps_exec_runline, 1024 );
+ //pnd_log ( PND_LOG_DEFAULT, "Norun %u\n", f );
+ unsigned char quotenext = 0;
+ for ( i = 0; i < ( f - 1 ); i++ ) {
+ //pnd_log ( PND_LOG_DEFAULT, "Norun %u: %s\n", i, argv [ i ] );
+
+ // add spacing between args
+ if ( i > 0 ) {
+ strncat ( apps_exec_runline, " ", 1000 );
+ }
+
+ // quoting
+ if ( quotenext ) {
+ strncat ( apps_exec_runline, "\"", 1000 );
+ }
+
+ // arg
+ strncat ( apps_exec_runline, argv [ i ], 1000 );
+
+ // unquoting
+ if ( quotenext ) {
+ strncat ( apps_exec_runline, "\"", 1000 );
+ }
+
+ // clear quoting
+ if ( quotenext ) {
+ quotenext = 0;
+ } else {
+ // if this is for -a, we need to wrap with quotes
+ if ( strcmp ( argv [ i ], "-a" ) == 0 ) {
+ quotenext = 1;
+ }
+ }
+
+ } // for
+ return ( 1 );
+ }
+
// debug
#if 0
+ int i;
for ( i = 0; i < f; i++ ) {
printf ( "exec's argv %u [ %s ]\n", i, argv [ i ] );
}
execv ( pndrun, argv );
}
- printf ( "Exiting pnd_apps_exec\n" );
+ // by definition, either error occurred or we are the original application.
+
+ // do we wish to wait until the child process completes? (we don't
+ // care if it crashed, was killed, was suspended, whatever.)
+ if ( options & PND_EXEC_OPTION_BLOCK ) {
+ int status = 0;
+ waitpid ( f, &status, 0 /* no options */ );
+ //wait ( &status );
+ }
+
+ // printf ( "Exiting pnd_apps_exec\n" );
+
+ return ( 1 );
+}
+
+void pnd_get_ro_mountpoint ( char *fullpath, char *unique_id, char *r_mountpoint, unsigned int mountpoint_len ) {
+
+ if ( ! r_mountpoint ) {
+ return; // sillyness
+ }
+
+ snprintf ( r_mountpoint, mountpoint_len, "%s/%s/", PND_MOUNT_PATH, unique_id );
+
+ return;
+}
+
+unsigned char pnd_get_appdata_path ( char *fullpath, char *unique_id, char *r_path, unsigned int path_len ) {
+ // you know, determining the 'mount point' used is sort of a pain in the rear
+ // use df <file>, skip header line, grab first token. Cheap and should work.
+ // (Rather than just assume first two path chunks in path, say, which would be pretty darned
+ // accurate, but whose to say they're not using NFS or crazy mountpoints?)
+ FILE *df;
+ char cmdbuf [ 1024 ];
+
+ snprintf ( cmdbuf, 1023, "/bin/df %s", fullpath );
+
+ df = popen ( cmdbuf, "r" );
+
+ if ( ! df ) {
+ return ( 0 ); // tunefs: you can tune a filesystem but you can't tune a fish
+ }
+
+ // fetch and discard header
+ if ( ! fgets ( cmdbuf, 1023, df ) ) {
+ pclose ( df );
+ return ( 0 );
+ }
+
+ // grab df result line
+ if ( ! fgets ( cmdbuf, 1023, df ) ) {
+ pclose ( df );
+ return ( 0 );
+ }
+
+ pclose ( df );
+
+ // parse
+ char *ws = strchr ( cmdbuf, ' ' );
+
+ if ( ! ws ) {
+ return ( 0 );
+ }
+
+ *ws = '\0';
+
+ if ( r_path && path_len ) {
+ snprintf ( r_path, path_len, "%s/appdata/%s/", cmdbuf, unique_id );
+ }
return ( 1 );
}