Grep mpath disk name from lsblk command Post: 303040800

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di_devlink_walk

di_devlink_walk(3DEVINFO)			       Device Information Library Functions				 di_devlink_walk(3DEVINFO)

NAME

       di_devlink_walk - walk through links in a devlink snapshot

SYNOPSIS

       cc [ flag... ] file... -ldevinfo [ library... ]
       #include <libdevinfo.h>

       int di_devlink_walk(di_devlink_handle_t hdl,const char *re,
	    const char *mpath, uint_t flags, void *arg,
	    int (*devlink_callback)(di_devlink_t devlink, void *arg));

PARAMETERS

       hdl	  A handle to a snapshot of devlinks in "/dev".

       re	  An  extended	regular  expression  as  specified in regex(5) describing the paths of devlinks to visit. A null value matches all
		  devlinks.  The expression should not involve the "/dev" prefix. For example, the "^dsk/" will invoke devlink_callback() for  all
		  "/dev/dsk/" links.

       mpath	  A  path  to  a  minor node below "/devices" for which "/dev" links are to be looked up. A null value selects all devlinks.  This
		  path should not have a "/devices" prefix.

       flags	  Specify the type of devlinks to be selected.	If DI_PRIMARY_LINK is used, only primary links (for instance,  links  which  point
		  only	to "/devices" entries) are selected. If DI_SECONDARY_LINK is specified, only secondary links (for instance, devlinks which
		  point to other devlinks) are selected. If neither flag is specified, all devlinks are selected.

       arg	  A pointer to caller private data.

       devlink	  The devlink being visited.

DESCRIPTION

       The di_devlink_walk() function visits every link in the snapshot that meets the criteria specified by the caller. For  each  such  devlink,
       the caller-supplied function devlink_callback() is invoked. The return value of	devlink_callback() determines subsequent walk behavior.

RETURN VALUES

       Upon success, the di_devlink_walk() function returns 0. Otherwise, -1 is returned and errno is set to indicate the error.

       The devlink_callback() function can return the following values:

       DI_WALK_CONTINUE     Continue walking.

       DI_WALK_TERMINATE    Terminate the walk immediately.

ERRORS

       The devlink_callback() function will fail if:

       EINVAL	 One or more arguments is invalid.

       ENOMEM	 Insufficient memory is available.

ATTRIBUTES

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

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

SEE ALSO

       di_devlink_init(3DEVINFO), di_devlink_path(3DEVINFO), libdevinfo(3LIB), malloc(3C), attributes(5), regex(5)

SunOS 5.11							    15 May 2008 					 di_devlink_walk(3DEVINFO)

10 More Discussions You Might Find Interesting

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how to exclude the GREP command from GREP

Discussion started by: yamsin789