-// UnmountCdrom - Unmount a cdrom /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-bool UnmountCdrom(string Path)
-{
- int Child = fork();
- if (Child < -1)
- return _error->Errno("fork","Failed to fork");
-
- // The child
- if (Child == 0)
- {
- // Make all the fds /dev/null
- for (int I = 0; I != 10; I++)
- close(I);
- for (int I = 0; I != 3; I++)
- dup2(open("/dev/null",O_RDWR),I);
-
- const char *Args[10];
- Args[0] = "umount";
- Args[1] = Path.c_str();
- Args[2] = 0;
- execvp(Args[0],(char **)Args);
- exit(100);
- }
-
- // Wait for mount
- int Status = 0;
- while (waitpid(Child,&Status,0) != Child)
- {
- if (errno == EINTR)
- continue;
- return _error->Errno("waitpid","Couldn't wait for subprocess");
- }
-
- // Check for an error code.
- if (WIFEXITED(Status) == 0 || WEXITSTATUS(Status) != 0)
- return false;
- return true;
-}
- /*}}}*/
-// MountCdrom - Mount a cdrom /*{{{*/
-// ---------------------------------------------------------------------
-/* We fork mount.. */
-bool MountCdrom(string Path)
-{
- int Child = fork();
- if (Child < -1)
- return _error->Errno("fork","Failed to fork");
-
- // The child
- if (Child == 0)
- {
- // Make all the fds /dev/null
- for (int I = 0; I != 10; I++)
- close(I);
- for (int I = 0; I != 3; I++)
- dup2(open("/dev/null",O_RDWR),I);
-
- const char *Args[10];
- Args[0] = "mount";
- Args[1] = Path.c_str();
- Args[2] = 0;
- execvp(Args[0],(char **)Args);
- exit(100);
- }
-
- // Wait for mount
- int Status = 0;
- while (waitpid(Child,&Status,0) != Child)
- {
- if (errno == EINTR)
- continue;
- return _error->Errno("waitpid","Couldn't wait for subprocess");
- }
-
- // Check for an error code.
- if (WIFEXITED(Status) == 0 || WEXITSTATUS(Status) != 0)
- return false;
- return true;
-}
- /*}}}*/
-// IdentCdrom - Generate a unique string for this CD /*{{{*/
-// ---------------------------------------------------------------------
-/* We convert everything we hash into a string, this prevents byte size/order
- from effecting the outcome. */
-bool IdentCdrom(string CD,string &Res)
-{
- MD5Summation Hash;
-
- string StartDir = SafeGetCWD();
- if (chdir(CD.c_str()) != 0)
- return _error->Errno("chdir","Unable to change to %s",CD.c_str());
-
- DIR *D = opendir(".");
- if (D == 0)
- return _error->Errno("opendir","Unable to read %s",CD.c_str());
-
- // Run over the directory
- char S[300];
- for (struct dirent *Dir = readdir(D); Dir != 0; Dir = readdir(D))
- {
- // Skip some files..
- if (strcmp(Dir->d_name,".") == 0 ||
- strcmp(Dir->d_name,"..") == 0)
- continue;
-
- sprintf(S,"%lu",Dir->d_ino);
- Hash.Add(S);
- Hash.Add(Dir->d_name);
- };
-
- chdir(StartDir.c_str());
- closedir(D);
-
- // Some stats from the fsys
- struct statfs Buf;
- if (statfs(CD.c_str(),&Buf) != 0)
- return _error->Errno("statfs","Failed to stat the cdrom");
-
- sprintf(S,"%u %u",Buf.f_blocks,Buf.f_bfree);
- Hash.Add(S);
-
- Res = Hash.Result().Value();
- return true;
-}
- /*}}}*/
-
projects / apt.git / blobdiff