#include <utmp.h> /* for expand-tilde below; see commentary for this about-turn */
#include <sys/types.h> /* ditto */
#include <pwd.h> /* ditto */
+#include <sys/stat.h> /* for fstat */
+#include <dirent.h> /* for opendir */
#include "pnd_pxml.h"
#include "pnd_container.h"
#include "pnd_pndfiles.h"
#include "pnd_discovery.h"
+unsigned char pnd_check_login ( char *r_username, unsigned int maxlen ) {
+ FILE *f;
+ struct utmp b;
+ struct passwd *pw;
+
+ f = fopen ( "/var/run/utmp", "r" );
+
+ if ( f ) {
+
+ // spin until a non-root user comes along
+ while ( fread ( &b, sizeof(struct utmp), 1, f ) == 1 ) {
+
+ if ( ( b.ut_type == USER_PROCESS ) &&
+ ( strcmp ( b.ut_user, "root" ) != 0 ) )
+ {
+
+ // ut_user contains the username ..
+ // now we need to find the path to that account.
+ while ( ( pw = getpwent() ) ) {
+
+ if ( strcmp ( pw -> pw_name, b.ut_user ) == 0 ) {
+
+ if ( r_username ) {
+ strncpy ( r_username, b.ut_user, maxlen );
+ }
+
+ fclose ( f );
+ return ( 1 );
+ } // passwd entry matches the utmp entry
+
+ } // while iteratin across passwd entries
+ endpwent();
+
+ } // utmp entry is for a user login
+
+ } // while
+
+ fclose ( f );
+ } // opened?
+
+ return ( 0 );
+}
+
// a generalized variable-substitution routine might be nice; for now we need a quick tilde one,
// so here goes. Brute force ftw!
char *pnd_expand_tilde ( char *freeable_buffer ) {
char *s = freeable_buffer;
char *home = getenv ( "HOME" );
- //printf ( "expand tilde IN: '%s'\n", freeable_buffer );
- //printf ( " home was %s\n", home );
+ //printf ( "DEBUG: expand tilde IN: '%s'\n", freeable_buffer );
+ //printf ( "DEBUG: $HOME was %s\n", home );
// well, as pndnotifyd (etc) may be running as _root_, while the user is logged in
// as 'pandora' or god knows what, this could be problematic. Other parts of the lib
florp = strdup ( pw -> pw_dir );
home = florp;
- //printf ( " home is %s (from %u)\n", home, b.ut_type );
+ //printf ( " DEBUG: home (for %s) is %s (from %u)\n", b.ut_user, home, b.ut_type );
} // passwd entry matches the utmp entry
return ( s ); // can't succeed
}
+ //printf ( "DEBUG: entering while (%s) with home (%s)\n", s, home );
+
while ( ( p = strchr ( s, '~' ) ) ) {
+ //printf ( "DEBUG: within while (%s)\n", s );
char *temp = malloc ( strlen ( s ) + strlen ( home ) + 1 );
memset ( temp, '\0', strlen ( s ) + strlen ( home ) + 1 );
// copy in stuff prior to ~
s = temp;
} // while finding matches
- //printf ( "expand tilde OUT: '%s'\n", s );
+ //printf ( "DEBUG: expand tilde OUT: '%s'\n", s );
return ( s );
}
execl ( fullpath, fullpath, (char*) NULL );
}
+ // error invoking something, and we're the child process, so just die before all hell breaks lose with us thinking we're the (second!) parent on return!
+ exit ( -1 );
+
// getting here is an error
//printf ( "Error attempting to run %s\n", fullpath );
return;
}
-pnd_pxml_handle pnd_pxml_get_by_path ( char *fullpath ) {
+pnd_pxml_handle *pnd_pxml_get_by_path ( char *fullpath ) {
unsigned char valid = pnd_object_type_unknown;
- pnd_pxml_handle pxmlh = 0;
+ pnd_pxml_handle *pxmlapps = 0;
// WARN: this is way too close to callback in pnd_disco .. should be refactored!
// potentially a valid application
if ( valid == pnd_object_type_directory ) {
- pxmlh = pnd_pxml_fetch ( (char*) fullpath );
+ pxmlapps = pnd_pxml_fetch ( (char*) fullpath );
} else if ( valid == pnd_object_type_pnd ) {
FILE *f;
}
// by now, we have <PXML> .. </PXML>, try to parse..
- pxmlh = pnd_pxml_fetch_buffer ( (char*) fullpath, pxmlbuf );
+ pxmlapps = pnd_pxml_fetch_buffer ( (char*) fullpath, pxmlbuf );
// done with file
fclose ( f );
// ..
- return ( pxmlh );
+ return ( pxmlapps );
+}
+
+unsigned char pnd_determine_mountpoint ( char *fullpath, char *r_mountpoint, unsigned int mountpoint_len ) {
+
+ // just cheap it, and call df like an idiot.
+
+ // Filesystem 1K-blocks Used Available Use% Mounted on
+
+ char cmd [ PATH_MAX ];
+ FILE *p;
+ char inbuf [ PATH_MAX ];
+
+ sprintf ( cmd, "/bin/df %s 2>/dev/null", fullpath );
+
+ if ( ( p = popen ( cmd, "r" ) ) ) {
+
+ // ignore title line; we really shoudl analyze it to figure out which column, but we make assumptions..
+ fgets ( inbuf, PATH_MAX, p );
+
+ if ( ! fgets ( inbuf, PATH_MAX, p ) ) {
+ pclose ( p );
+ return ( 0 );
+ }
+
+ pclose ( p );
+
+ // by now, good
+ char mount [ PATH_MAX ];
+ if ( sscanf ( inbuf, "%*s %*s %*s %*s %*s %s", mount ) != 1 ) {
+ return ( 0 );
+ }
+
+ if ( strlen ( mount ) < mountpoint_len ) {
+ strcpy ( r_mountpoint, mount );
+ return ( 1 );
+ }
+
+ } // if popen
+
+ return ( 0 );
+
+#if 0
+ struct stat fooby;
+
+ // can we even stat this file?
+ if ( stat ( fullpath, &fooby ) == 0 ) {
+ //dev_t st_dev; /* ID of device containing file */
+ //dev_t st_rdev; /* device ID (if special file) */
+
+ dev_t mount = fooby.st_dev;
+
+ DIR *d = opendir ( "/dev" );
+
+ if ( d ) {
+ struct dirent *de;
+ char path [ FILENAME_MAX ];
+
+ while ( de = readdir ( d ) ) {
+ sprintf ( path, "/dev/%s", de -> d_name );
+
+ if ( stat ( path, &fooby ) == 0 ) {
+
+ // finally, if we find the same major/minor pair in /dev, as we found for the target file, it means we found the right device
+ if ( fooby.st_rdev == mount ) {
+ printf ( "Device: %s\n", path );
+ }
+
+ } // if
+
+ } // while
+
+ } // opened /dev?
+
+ } // stat
+#endif
+
+ return ( 0 );
+}
+
+unsigned char pnd_filecopy ( char *sourcepath, char *targetpath ) {
+#define BITLEN (64*1024)
+ FILE *pnd, *target; // pnd == from, since I cribbed the code from pnd_desktop.c :/
+ unsigned char bits [ BITLEN ];
+ unsigned int bitlen;
+
+ pnd = fopen ( sourcepath, "rb" );
+
+ if ( ! pnd ) {
+ return ( 0 );
+ }
+
+ unsigned int len;
+
+ target = fopen ( targetpath, "wb" );
+
+ if ( ! target ) {
+ fclose ( pnd );
+ return ( 0 );
+ }
+
+ fseek ( pnd, 0, SEEK_END );
+ len = ftell ( pnd );
+ fseek ( pnd, 0, SEEK_SET );
+
+ while ( len ) {
+
+ if ( len > (BITLEN) ) {
+ bitlen = (BITLEN);
+ } else {
+ bitlen = len;
+ }
+
+ if ( fread ( bits, bitlen, 1, pnd ) != 1 ) {
+ fclose ( pnd );
+ fclose ( target );
+ unlink ( targetpath );
+ return ( 0 );
+ }
+
+ if ( fwrite ( bits, bitlen, 1, target ) != 1 ) {
+ fclose ( pnd );
+ fclose ( target );
+ unlink ( targetpath );
+ return ( 0 );
+ }
+
+ len -= bitlen;
+ } // while
+
+ fclose ( pnd );
+ fclose ( target );
+
+ return ( 1 );
}
git.openpandora.org / pandora-libraries.git / blobdiff