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,
16 unsigned int clockspeed, unsigned int options )
19 char s_clockspeed [ 100 ];
22 //printf ( "Entering pnd_apps_exec\n" );
41 printf ( " runscript: %s\n", pndrun );
42 printf ( " path: %s\n", fullpath );
43 printf ( " id: %s\n", unique_id );
44 printf ( " exec: %s\n", rel_exec );
45 printf ( " cwd: %s\n", rel_startdir );
46 printf ( " clock: %u\n", clockspeed );
49 memset ( argv, '\0', sizeof(char*) * 20 );
52 argv [ f++ ] = pndrun;
54 argv [ f++ ] = fullpath;
56 argv [ f++ ] = rel_exec;
59 argv [ f++ ] = rel_startdir;
62 argv [ f++ ] = unique_id;
65 snprintf ( s_clockspeed, 100, "%u", clockspeed );
66 argv [ f++ ] = s_clockspeed;
69 // skip -a (arguments) for now
71 if ( options & PND_EXEC_OPTION_NOUNION ) {
72 argv [ f++ ] = "-n"; // no union for now
75 if ( options & PND_EXEC_OPTION_NOX11 ) {
76 argv [ f++ ] = "-x"; // no union for now
80 argv [ f++ ] = NULL; // for execv
85 for ( i = 0; i < f; i++ ) {
86 printf ( "exec's argv %u [ %s ]\n", i, argv [ i ] );
92 if ( ( f = fork() ) < 0 ) {
98 execv ( pndrun, argv );
101 // by definition, either error occurred or we are the original application.
103 // do we wish to wait until the child process completes? (we don't
104 // care if it crashed, was killed, was suspended, whatever.)
105 if ( options & PND_EXEC_OPTION_BLOCK ) {
107 //waitpid ( f, &status. 0 /* no options */ );
111 // printf ( "Exiting pnd_apps_exec\n" );
116 void pnd_get_ro_mountpoint ( char *fullpath, char *unique_id, char *r_mountpoint, unsigned int mountpoint_len ) {
118 if ( ! r_mountpoint ) {
122 snprintf ( r_mountpoint, mountpoint_len, "%s/%s/", PND_MOUNT_PATH, unique_id );
127 unsigned char pnd_get_appdata_path ( char *fullpath, char *unique_id, char *r_path, unsigned int path_len ) {
128 // you know, determining the 'mount point' used is sort of a pain in the rear
129 // use df <file>, skip header line, grab first token. Cheap and should work.
130 // (Rather than just assume first two path chunks in path, say, which would be pretty darned
131 // accurate, but whose to say they're not using NFS or crazy mountpoints?)
133 char cmdbuf [ 1024 ];
135 snprintf ( cmdbuf, 1023, "/bin/df %s", fullpath );
137 df = popen ( cmdbuf, "r" );
140 return ( 0 ); // tunefs: you can tune a filesystem but you can't tune a fish
143 // fetch and discard header
144 if ( ! fgets ( cmdbuf, 1023, df ) ) {
149 // grab df result line
150 if ( ! fgets ( cmdbuf, 1023, df ) ) {
158 char *ws = strchr ( cmdbuf, ' ' );
166 if ( r_path && path_len ) {
167 snprintf ( r_path, path_len, "%s/appdata/%s/", cmdbuf, unique_id );