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author | Kirk McKusick <mckusick@FreeBSD.org> | 2009-11-16 18:59:04 +0000 |
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committer | Kirk McKusick <mckusick@FreeBSD.org> | 2009-11-16 18:59:04 +0000 |
commit | e525d16a80319276894d6737ffb7c4b5a8fda142 (patch) | |
tree | 8850988982a36bf51d9451cdd87870d2424e1b01 /lib/libutil/quotafile.3 | |
parent | 708a2897f1b3c36dacde8cf534288c05373f7dfd (diff) | |
download | src-e525d16a80319276894d6737ffb7c4b5a8fda142.tar.gz src-e525d16a80319276894d6737ffb7c4b5a8fda142.zip |
Add and document new quoat_on and quota_off functions.
Notes
Notes:
svn path=/projects/quota64/; revision=199328
Diffstat (limited to 'lib/libutil/quotafile.3')
-rw-r--r-- | lib/libutil/quotafile.3 | 131 |
1 files changed, 85 insertions, 46 deletions
diff --git a/lib/libutil/quotafile.3 b/lib/libutil/quotafile.3 index d0c27d730b89..d2134c505306 100644 --- a/lib/libutil/quotafile.3 +++ b/lib/libutil/quotafile.3 @@ -30,14 +30,16 @@ .Os .Sh NAME .Nm quota_open +.Nm quota_close +.Nm quota_on +.Nm quota_off +.Nm quota_read +.Nm quota_write_limits +.Nm quota_write_usage .Nm quota_fsname .Nm quota_qfname .Nm quota_maxid .Nm quota_check_path -.Nm quota_read -.Nm quota_write_limits -.Nm quota_write_usage -.Nm quota_close .Nd "Manipulate quotas" .Sh LIBRARY .Lb libutil @@ -50,22 +52,26 @@ .In libutil.h .Ft "struct quotafile *" .Fn quota_open "struct fstab *fs" "int quotatype" "int openflags" -.Ft "const char *" -.Fn quota_fsname "const struct quotafile *qf" -.Ft "const char *" -.Fn quota_qfname "const struct quotafile *qf" .Ft int -.Fn quota_maxid "const struct quotafile *qf" +.Fn quota_close "struct quotafile *qf" .Ft int -.Fn quota_check_path "const struct quotafile *qf" "const char *path" +.Fn quota_on "const struct quotafile *qf" +.Ft int +.Fn quota_off "const struct quotafile *qf" .Ft int .Fn quota_read "struct quotafile *qf" "struct dqblk *dqb" "int id" .Ft int .Fn quota_write_limits "struct quotafile *qf" "struct dqblk *dqb" "int id" .Ft int .Fn quota_write_usage "struct quotafile *qf" "struct dqblk *dqb" "int id" +.Ft "const char *" +.Fn quota_fsname "const struct quotafile *qf" +.Ft "const char *" +.Fn quota_qfname "const struct quotafile *qf" .Ft int -.Fn quota_close "struct quotafile *qf" +.Fn quota_maxid "const struct quotafile *qf" +.Ft int +.Fn quota_check_path "const struct quotafile *qf" "const char *path" .Sh DESCRIPTION These functions are designed to simplify access to filesystem quotas. If quotas are active on a filesystem, @@ -103,46 +109,48 @@ flag should be specified if a new quota file of the requested type should be created if it does not already exist. .Pp The -.Fn quota_fsname -function returns a pointer to a buffer containing the path to the root -of the file system that corresponds to its -.Va qf -argument, as listed in -.Pa /etc/fstab . -Note that this may be a symbolic link to the actual directory. +.Fn quota_close +function closes any open file descriptors and frees any storage +associated with the filesystem and quota type referenced by +.Va qf . .Pp The -.Fn quota_qfname -function returns a pointer to a buffer containing the name of the -quota file that corresponds to its +.Fn quota_on +function enables quotas for the filesystem associated with its .Va qf -argument. -Note that this may be a symbolic link to the actual file. -.Pp +argument which may have been opened +.Dv O_RDONLY +or +.Dv O_RDWR . The -.Fn quota_maxid -function returns the maximum user (or group) -.Va id -contained in the quota file associated with its -.Va qf -argument. +.Fn quota_on +function returns 0 if successful; +otherwise the value\~-1 is returned and the global variable +.Va errno +is set to indicate the error, see +.Xr quotactl 2 +for the possible errors. .Pp The -.Fn quota_check_path -function checks if the specified path is within the filesystem that -corresponds to its +.Fn quota_off +function disables quotas for the filesystem associated with its .Va qf -argument. -If the -.Va path -argument refers to a symbolic link, -.Fn quota_check_path -will follow it. +argument which may have been opened +.Dv O_RDONLY +or +.Dv O_RDWR . +The +.Fn quota_off +function returns 0 if successful; +otherwise the value\~-1 is returned and the global variable +.Va errno +is set to indicate the error, see +.Xr quotactl 2 +for the possible errors. .Pp The .Fn quota_read -function reads the quota from the filesystem and quota type referenced -by +function reads the quota from the filesystem and quota type referenced by .Va qf for the user (or group) specified by .Va id @@ -176,10 +184,41 @@ quota structure pointed to by .Va dqb . .Pp The -.Fn quota_close -function closes any open file descriptors and frees any storage -associated with the filesystem and quota type referenced by -.Va qf . +.Fn quota_fsname +function returns a pointer to a buffer containing the path to the root +of the file system that corresponds to its +.Va qf +argument, as listed in +.Pa /etc/fstab . +Note that this may be a symbolic link to the actual directory. +.Pp +The +.Fn quota_qfname +function returns a pointer to a buffer containing the name of the +quota file that corresponds to its +.Va qf +argument. +Note that this may be a symbolic link to the actual file. +.Pp +The +.Fn quota_maxid +function returns the maximum user (or group) +.Va id +contained in the quota file associated with its +.Va qf +argument. +.Pp +The +.Fn quota_check_path +function checks if the specified path is within the filesystem that +corresponds to its +.Va qf +argument. +If the +.Va path +argument refers to a symbolic link, +.Fn quota_check_path +will follow it. .Sh IMPLEMENTATION NOTES If the underlying quota file is in the old 32-bit format, limit and usage values written to the quota file will be clipped to 32 bits. @@ -230,4 +269,4 @@ The functions and this manual page were written by .An Dag-Erling Sm\(/orgrav Aq des@FreeBSD.org and -.An Marshall Kirk McKusick . +.An Marshall Kirk McKusick Aq mckusick@mckusick.com . |