volmgt_inuse(3volmgt) [opensolaris man page]

volmgt_inuse(3VOLMGT)					Volume Management Library Functions				     volmgt_inuse(3VOLMGT)

NAME

       volmgt_inuse - check whether or not volume management is managing a pathname

SYNOPSIS

       cc [ flag ... ] file ... -lvolmgt [ library ... ]
       #include <volmgt.h>

       int volmgt_inuse(char *pathname);

DESCRIPTION

       This  function  is obsolete. The management of removable media by the Volume Management feature, including vold, has been replaced by soft-
       ware that supports the Hardware Abstraction Layer (HAL). Programmatic support for HAL is through the HAL APIs, which are documented on  the
       HAL web site. See hal(5). The return value of this function is undefined.

       volmgt_inuse() checks whether volume management is managing the specified pathname.

RETURN VALUES

       The return from this function is undefined.

ERRORS

       This routine can fail, returning 0, if a stat(2) of the supplied pathname or an open(2) of /dev/volctl fails, or if any of the following is
       true:

       ENXIO	Volume management is not running.

       EINTR	An interrupt signal was detected while checking for the supplied pathname for use.

EXAMPLES

       Example 1 Using volmgt_inuse()

       To see if volume management is managing the first floppy disk:

	 if (volmgt_inuse("/dev/rdiskette0") != 0) {
		 (void) printf("volmgt is managing diskette 0
");
	 } else {
		 (void) printf("volmgt is NOT managing diskette 0
");
	 }

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Obsolete			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       cc(1B),	open(2),  stat(2),  errno(3C),	volmgt_check(3VOLMGT),	volmgt_running(3VOLMGT),  attributes(5),  hal(5)

NOTES

       This routine requires volume management to be running.

       Since volmgt_inuse() returns 0 for two different cases (both when a volume is not in use, and when an error occurs), it is up to  the  user
       to to check errno to differentiate the two, and to ensure that volume management is running.

SunOS 5.11							    8 Mar 2007						     volmgt_inuse(3VOLMGT)

volmgt_symname(3VOLMGT) 				Volume Management Library Functions				   volmgt_symname(3VOLMGT)

NAME

       volmgt_symname, volmgt_symdev - convert between Volume Management symbolic names, and the devices that correspond to them

SYNOPSIS

       cc [ flag ... ] file ... -lvolmgt [ library ... ]
       #include <volmgt.h>

       char *volmgt_symname(char *pathname);

       char *volmgt_symdev(char *symname);

DESCRIPTION

       This  function  is obsolete. The management of removable media by the Volume Management feature, including vold, has been replaced by soft-
       ware that supports the Hardware Abstraction Layer (HAL). Programmatic support for HAL is through the HAL APIs, which are documented on  the
       HAL web site. See hal(5). The return value of this function is undefined.

       These  two  routines  compliment  each other, translating between Volume Management's symbolic name for a device, called a symname, and the
       /dev pathname for that same device.

       volmgt_symname() converts a supplied /dev pathname to a symname, Volume Management's idea of that device's symbolic name.

       volmgt_symdev() does the opposite conversion, converting between a symname, Volume Management's idea of a device's symbolic name for a vol-
       ume, to the /dev pathname for that device.

RETURN VALUES

       The return from this function is undefined.

ERRORS

       volmgt_symname()  can  fail,  returning a null string pointer, if a stat(2) of the supplied pathname fails, or if an open(2) of /dev/volctl
       fails, or if any of the following is true:

       ENXIO	Volume Management is not running.

       EINTR	An interrupt signal was detected while trying to convert the supplied pathname to a symname.

       volmgt_symdev() can fail if an open(2) of /dev/volctl fails, or if any of the following is true:

       ENXIO	Volume Management is not running.

       EINTR	An interrupt signal was detected while trying to convert the supplied symname to a /dev pathname.

EXAMPLES

       Example 1 Testing Floppies

       The following tests how many floppies Volume Management currently sees in floppy drives (up to 10):

	 for (i=0; i < 10; i++) {
		 (void) sprintf(path, "floppy%d", i);
		 if (volmgt_symdev(path) != NULL) {
			 (void) printf("volume %s is in drive %d
",
			     path, i);
		 }
	 }

       Example 2 Finding The Symbolic Name

       This code finds out what symbolic name (if any) Volume Management has for /dev/rdsk/c0t6d0s2:

	 if ((nm = volmgt_symname("/dev/rdsk/c0t6d0s2")) == NULL) {
		 (void) printf("path not managed
");
	 } else {
		 (void) printf("path managed as %s
", nm);
	 }

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Obsolete			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       cc(1B), open(2), stat(2),  free(3C),  malloc(3C),  volmgt_check(3VOLMGT),  volmgt_inuse(3VOLMGT),  volmgt_running(3VOLMGT),  attributes(5),
       hal(5)

SunOS 5.11							    8 Mar 2007						   volmgt_symname(3VOLMGT)