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This commit is contained in:
Eric Andersen
1999-10-13 18:01:10 +00:00
parent 5de3065f58
commit c6cb79dedf
17 changed files with 279 additions and 963 deletions
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88
df.c
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@@ -43,6 +43,50 @@ df(char* device, const char * mountPoint)
return 0;
}
/*
* Given a block device, find the mount table entry if that block device
* is mounted.
*
* Given any other file (or directory), find the mount table entry for its
* filesystem.
*/
extern struct mntent *
findMountPoint(const char* name, const char* table)
{
struct stat s;
dev_t mountDevice;
FILE * mountTable;
struct mntent * mountEntry;
if ( stat(name, &s) != 0 )
return 0;
if ( (s.st_mode & S_IFMT) == S_IFBLK )
mountDevice = s.st_rdev;
else
mountDevice = s.st_dev;
if ( (mountTable = setmntent(table, "r")) == 0 )
return 0;
while ( (mountEntry = getmntent(mountTable)) != 0 ) {
if ( strcmp(name, mountEntry->mnt_dir) == 0
|| strcmp(name, mountEntry->mnt_fsname) == 0 ) /* String match. */
break;
if ( stat(mountEntry->mnt_fsname, &s) == 0
&& s.st_rdev == mountDevice ) /* Match the device. */
break;
if ( stat(mountEntry->mnt_dir, &s) == 0
&& s.st_dev == mountDevice ) /* Match the directory's mount point. */
break;
}
endmntent(mountTable);
return mountEntry;
}
extern int
df_main(int argc, char * * argv)
{
@@ -90,47 +134,3 @@ df_main(int argc, char * * argv)
/*
* Given a block device, find the mount table entry if that block device
* is mounted.
*
* Given any other file (or directory), find the mount table entry for its
* filesystem.
*/
extern struct mntent *
findMountPoint(const char* name, const char* table)
{
struct stat s;
dev_t mountDevice;
FILE * mountTable;
struct mntent * mountEntry;
if ( stat(name, &s) != 0 )
return 0;
if ( (s.st_mode & S_IFMT) == S_IFBLK )
mountDevice = s.st_rdev;
else
mountDevice = s.st_dev;
if ( (mountTable = setmntent(table, "r")) == 0 )
return 0;
while ( (mountEntry = getmntent(mountTable)) != 0 ) {
if ( strcmp(name, mountEntry->mnt_dir) == 0
|| strcmp(name, mountEntry->mnt_fsname) == 0 ) /* String match. */
break;
if ( stat(mountEntry->mnt_fsname, &s) == 0
&& s.st_rdev == mountDevice ) /* Match the device. */
break;
if ( stat(mountEntry->mnt_dir, &s) == 0
&& s.st_dev == mountDevice ) /* Match the directory's mount point. */
break;
}
endmntent(mountTable);
return mountEntry;
}