2 #include <stdio.h> /* for FILE etc */
3 #include <stdlib.h> /* for malloc */
4 #include <string.h> /* for memset */
5 #include <unistd.h> /* for fork/exec */
7 #include <sys/types.h> /* for wait */
8 #include <sys/wait.h> /* for wait */
10 #include "pnd_container.h"
14 unsigned char pnd_apps_exec ( char *pndrun, char *fullpath, char *unique_id,
15 char *rel_exec, char *rel_startdir,
17 unsigned int clockspeed, unsigned int options )
20 char s_clockspeed [ 100 ];
23 //printf ( "Entering pnd_apps_exec\n" );
42 printf ( " runscript: %s\n", pndrun );
43 printf ( " path: %s\n", fullpath );
44 printf ( " id: %s\n", unique_id );
45 printf ( " exec: %s\n", rel_exec );
46 printf ( " cwd: %s\n", rel_startdir );
47 printf ( " clock: %u\n", clockspeed );
50 memset ( argv, '\0', sizeof(char*) * 20 );
53 argv [ f++ ] = pndrun;
55 argv [ f++ ] = fullpath;
57 argv [ f++ ] = rel_exec;
60 argv [ f++ ] = rel_startdir;
67 argv [ f++ ] = unique_id;
70 snprintf ( s_clockspeed, 100, "%u", clockspeed );
71 argv [ f++ ] = s_clockspeed;
74 // skip -a (arguments) for now
76 if ( options & PND_EXEC_OPTION_NOUNION ) {
77 argv [ f++ ] = "-n"; // no union for now
80 if ( options & PND_EXEC_OPTION_NOX11 ) {
81 argv [ f++ ] = "-x"; // no union for now
85 argv [ f++ ] = NULL; // for execv
90 for ( i = 0; i < f; i++ ) {
91 printf ( "exec's argv %u [ %s ]\n", i, argv [ i ] );
97 if ( ( f = fork() ) < 0 ) {
103 execv ( pndrun, argv );
106 // by definition, either error occurred or we are the original application.
108 // do we wish to wait until the child process completes? (we don't
109 // care if it crashed, was killed, was suspended, whatever.)
110 if ( options & PND_EXEC_OPTION_BLOCK ) {
112 //waitpid ( f, &status. 0 /* no options */ );
116 // printf ( "Exiting pnd_apps_exec\n" );
121 void pnd_get_ro_mountpoint ( char *fullpath, char *unique_id, char *r_mountpoint, unsigned int mountpoint_len ) {
123 if ( ! r_mountpoint ) {
127 snprintf ( r_mountpoint, mountpoint_len, "%s/%s/", PND_MOUNT_PATH, unique_id );
132 unsigned char pnd_get_appdata_path ( char *fullpath, char *unique_id, char *r_path, unsigned int path_len ) {
133 // you know, determining the 'mount point' used is sort of a pain in the rear
134 // use df <file>, skip header line, grab first token. Cheap and should work.
135 // (Rather than just assume first two path chunks in path, say, which would be pretty darned
136 // accurate, but whose to say they're not using NFS or crazy mountpoints?)
138 char cmdbuf [ 1024 ];
140 snprintf ( cmdbuf, 1023, "/bin/df %s", fullpath );
142 df = popen ( cmdbuf, "r" );
145 return ( 0 ); // tunefs: you can tune a filesystem but you can't tune a fish
148 // fetch and discard header
149 if ( ! fgets ( cmdbuf, 1023, df ) ) {
154 // grab df result line
155 if ( ! fgets ( cmdbuf, 1023, df ) ) {
163 char *ws = strchr ( cmdbuf, ' ' );
171 if ( r_path && path_len ) {
172 snprintf ( r_path, path_len, "%s/appdata/%s/", cmdbuf, unique_id );