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volmgt_check(3volmgt) [sunos man page]

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

NAME
volmgt_check - have Volume Management check for media SYNOPSIS
cc [ flag ... ] file ... -lvolmgt [ library ... ] #include <volmgt.h> int volmgt_check(char *pathname); DESCRIPTION
This routine asks Volume Management to check the specified pathname and determine if new media has been inserted in that drive. If a null pointer is passed in, then Volume Management will check each device it is managing that can be checked. If new media is found, volmgt_check() tells Volume Management to initiate any "actions" specified in /etc/vold.conf (see vold.conf(4)). RETURN VALUES
This routine returns 0 if no media was found, and a non-zero value if any media was found. ERRORS
This routine can fail, returning 0, if a stat(2) or open(2) of the supplied pathname fails, or if any of the following is true: ENXIO Volume Management is not running. EINTR An interrupt signal was detected while checking for media. EXAMPLES
Example 1: Checking If Any New Media Is Inserted To check if any drive managed by Volume Management has any new media inserted in it: if (volmgt_check(NULL)) { (void) printf("Volume Management found media "); } This would also request Volume Management to take whatever action was specified in /etc/vold.conf for any media found. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
cc(1B), volcheck(1), vold(1M), open(2), stat(2), volmgt_inuse(3VOLMGT), volmgt_running(3VOLMGT), vold.conf(4), attributes(5), volfs(7FS) NOTES
Volume Management must be running for this routine to work. Since volmgt_check() returns 0 for two different cases (both when no media is found, 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 5.10 31 Dec 1996 volmgt_check(3VOLMGT)

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

NAME
media_getid - return the id of a piece of media SYNOPSIS
cc [flag ...] file ...-lvolgmt [library ...] #include <volmgt.h> ulonglong_t media_getid(char *vol_path); DESCRIPTION
media_getid() returns the id of a piece of media. Volume Management must be running. See volmgt_running(3VOLMGT). PARAMETERS
vol_path Path to the block or character special device. RETURN VALUES
media_getid() returns the id of the volume. This value is unique for each volume. If media_getid() returns 0, the path provided is not valid, for example, it is a block or char device. EXAMPLES
Example 1: Using media_getid() The following example first checks if Volume Management is running, then checks the volume management name space for path, and then returns the id for the piece of media. char *path; ... if (volmgt_running()) { if (volmgt_ownspath(path)) { (void) printf("id of %s is %lld ", path, media_getid(path)); } } If a program using media_getid() does not check whether or not Volume Management is running, then any NULL return value will be ambiguous, as it could mean that either Volume Management does not have path in its name space, or Volume Management is not running. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |MT Level |Safe | +-----------------------------+-----------------------------+ |Commitment Level |Public | +-----------------------------+-----------------------------+ SEE ALSO
volmgt_ownspath(3VOLMGT),volmgt_running(3VOLMGT),attributes(5) SunOS 5.10 29 Apr1998 media_getid(3VOLMGT)
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