#include <string.h>
#include <iostream>
#include <string>
+#include <vector>
#include <sys/statvfs.h>
#include <dirent.h>
#include <fcntl.h>
{
if (Path.empty() == true)
return false;
-
+
// Need that trailing slash for directories
if (Path[Path.length() - 1] != '/')
Path += '/';
-
+
+ // if the path has a ".disk" directory we treat it as mounted
+ // this way even extracted copies of disks are recognized
+ if (DirectoryExists(Path + ".disk/") == true)
+ return true;
+
/* First we check if the path is actually mounted, we do this by
stating the path and the previous directory (careful of links!)
and comparing their device fields. */
leave /etc/mtab inconsitant. We drop all messages this produces. */
bool UnmountCdrom(string Path)
{
- if (IsMounted(Path) == false)
+ // do not generate errors, even if the mountpoint does not exist
+ // the mountpoint might be auto-created by the mount command
+ // and a non-existing mountpoint is surely not mounted
+ _error->PushToStack();
+ bool const mounted = IsMounted(Path);
+ _error->RevertToStack();
+ if (mounted == false)
return true;
for (int i=0;i<3;i++)
if (Child == 0)
{
// Make all the fds /dev/null
- for (int I = 0; I != 3; I++)
- dup2(open("/dev/null",O_RDWR),I);
+ int const null_fd = open("/dev/null",O_RDWR);
+ for (int I = 0; I != 3; ++I)
+ dup2(null_fd, I);
if (_config->Exists("Acquire::cdrom::"+Path+"::UMount") == true)
{
/* We fork mount and drop all messages */
bool MountCdrom(string Path, string DeviceName)
{
- if (IsMounted(Path) == true)
+ // do not generate errors, even if the mountpoint does not exist
+ // the mountpoint might be auto-created by the mount command
+ _error->PushToStack();
+ bool const mounted = IsMounted(Path);
+ _error->RevertToStack();
+ if (mounted == true)
return true;
-
+
int Child = ExecFork();
// The child
if (Child == 0)
{
// Make all the fds /dev/null
- int null_fd = open("/dev/null",O_RDWR);
- for (int I = 0; I != 3; I++)
+ int const null_fd = open("/dev/null",O_RDWR);
+ for (int I = 0; I != 3; ++I)
dup2(null_fd, I);
-
+
if (_config->Exists("Acquire::cdrom::"+Path+"::Mount") == true)
{
if (system(_config->Find("Acquire::cdrom::"+Path+"::Mount").c_str()) != 0)
/* Run over the directory, we assume that the reader order will never
change as the media is read-only. In theory if the kernel did
some sort of wacked caching this might not be true.. */
- char S[300];
for (struct dirent *Dir = readdir(D); Dir != 0; Dir = readdir(D))
{
// Skip some files..
strcmp(Dir->d_name,"..") == 0)
continue;
+ std::string S;
if (Version <= 1)
{
- sprintf(S,"%lu",(unsigned long)Dir->d_ino);
+ strprintf(S, "%lu", (unsigned long)Dir->d_ino);
}
else
{
struct stat Buf;
if (stat(Dir->d_name,&Buf) != 0)
continue;
- sprintf(S,"%lu",(unsigned long)Buf.st_mtime);
+ strprintf(S, "%lu", (unsigned long)Buf.st_mtime);
}
-
- Hash.Add(S);
+
+ Hash.Add(S.c_str());
Hash.Add(Dir->d_name);
};
-
+
if (chdir(StartDir.c_str()) != 0) {
_error->Errno("chdir",_("Unable to change to %s"),StartDir.c_str());
closedir(D);
return false;
}
closedir(D);
-
+
// Some stats from the fsys
+ std::string S;
if (_config->FindB("Debug::identcdrom",false) == false)
{
struct statvfs Buf;
// We use a kilobyte block size to advoid overflow
if (writable_media)
{
- sprintf(S,"%lu",(long)(Buf.f_blocks*(Buf.f_bsize/1024)));
+ strprintf(S, "%lu", (unsigned long)(Buf.f_blocks*(Buf.f_bsize/1024)));
} else {
- sprintf(S,"%lu %lu",(long)(Buf.f_blocks*(Buf.f_bsize/1024)),
- (long)(Buf.f_bfree*(Buf.f_bsize/1024)));
+ strprintf(S, "%lu %lu", (unsigned long)(Buf.f_blocks*(Buf.f_bsize/1024)),
+ (unsigned long)(Buf.f_bfree*(Buf.f_bsize/1024)));
}
- Hash.Add(S);
- sprintf(S,"-%u",Version);
+ Hash.Add(S.c_str());
+ strprintf(S, "-%u", Version);
}
else
- sprintf(S,"-%u.debug",Version);
-
+ strprintf(S, "-%u.debug", Version);
+
Res = Hash.Result().Value() + S;
- return true;
+ return true;
}
/*}}}*/
-
// FindMountPointForDevice - Find mountpoint for the given device /*{{{*/
string FindMountPointForDevice(const char *devnode)
{
- char buf[255];
- char *out[10];
- int i=0;
-
// this is the order that mount uses as well
- const char *mount[] = { "/etc/mtab",
- "/proc/mount",
- NULL };
+ std::vector<std::string> const mounts = _config->FindVector("Dir::state::MountPoints", "/etc/mtab,/proc/mount");
- for (i=0; mount[i] != NULL; i++) {
- if (FileExists(mount[i])) {
- FILE *f=fopen(mount[i], "r");
- while ( fgets(buf, sizeof(buf), f) != NULL) {
- if (strncmp(buf, devnode, strlen(devnode)) == 0) {
- if(TokSplitString(' ', buf, out, 10))
- {
- fclose(f);
- // unescape the \0XXX chars in the path
- string mount_point = out[1];
- return DeEscapeString(mount_point);
- }
- }
- }
- fclose(f);
+ for (std::vector<std::string>::const_iterator m = mounts.begin(); m != mounts.end(); ++m)
+ if (FileExists(*m) == true)
+ {
+ char * line = NULL;
+ size_t line_len = 0;
+ FILE * f = fopen(m->c_str(), "r");
+ while(getline(&line, &line_len, f) != -1)
+ {
+ char * out[] = { NULL, NULL, NULL };
+ TokSplitString(' ', line, out, 3);
+ if (out[2] != NULL || out[1] == NULL || out[0] == NULL)
+ continue;
+ if (strcmp(out[0], devnode) != 0)
+ continue;
+ fclose(f);
+ // unescape the \0XXX chars in the path
+ string mount_point = out[1];
+ free(line);
+ return DeEscapeString(mount_point);
+ }
+ fclose(f);
+ free(line);
}
- }
-
+
return string();
}
/*}}}*/
projects / apt.git / blobdiff