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Clarify a comment.

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This commit is contained in:
Todd C. Miller
2013-05-18 04:38:26 -04:00
parent 5549e44cd8
commit 5869916533
1 changed files with 6 additions and 3 deletions
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9
src/ttyname.c
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@@ -247,9 +247,12 @@ sudo_ttyname_scan(const char *dir, dev_t rdev, bool builtin)
continue;
}
# if defined(HAVE_STRUCT_DIRENT_D_TYPE) && defined(DTTOIF)
/* Use d_type to avoid a stat() if possible. */
/* Convert d_type to stat-style type bits but follow links. */
if (dp->d_type != DT_LNK && dp->d_type != DT_CHR && dp->d_type != DT_UNKNOWN)
/*
* Convert dp->d_type to sb.st_mode to avoid a stat(2) if possible.
* We can't use it for links (since we want to follow them) or
* char devs (since we need st_rdev to compare the device number).
*/
if (dp->d_type != DT_UNKNOWN && dp->d_type != DT_LNK && dp->d_type != DT_CHR)
sb.st_mode = DTTOIF(dp->d_type);
else
# endif