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blkid: add new return code 8 for ambivalent low-level probing result 

Signed-off-by: Karel Zak <kzak@redhat.com>
This commit is contained in:
Karel Zak 2011-02-03 12:59:58 +01:00
parent c38b4ebb0e
commit 68c88d942f
2 changed files with 15 additions and 3 deletions
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10
misc-utils/blkid.8
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@ -253,9 +253,15 @@ appear in
are shown, if they are recognized. are shown, if they are recognized.
.SH "RETURN CODE" .SH "RETURN CODE"
If the specified token was found, or if any tags were shown from (specified) If the specified token was found, or if any tags were shown from (specified)
devices, 0 is returned. If the specified token was not found, or no devices, 0 is returned.
(specified) devices could be identified, an exit code of 2 is returned.
If the specified token was not found, or no (specified) devices could be
identified an exit code of 2 is returned.
For usage or other errors, an exit code of 4 is returned. For usage or other errors, an exit code of 4 is returned.
If the ambivalent low-level probing result was detected an exit code of 8 is
returned.
.SH AUTHOR .SH AUTHOR
.B blkid .B blkid
was written by Andreas Dilger for libblkid and improved by Theodore Ts'o was written by Andreas Dilger for libblkid and improved by Theodore Ts'o

8
misc-utils/blkid.c
View File

@ -565,7 +565,13 @@ done:
devname); devname);
} }
close(fd); close(fd);
return !nvals ? 2 : 0;
if (rc == -2)
return 8; /* ambivalent probing result */
if (!nvals)
return 2; /* nothing detected */
return 0; /* sucess */
} }
/* converts comma separated list to BLKID_USAGE_* mask */ /* converts comma separated list to BLKID_USAGE_* mask */