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| author | Samuel Holland <samuel@sholland.org> | 2016-03-20 11:13:22 -0700 |
|---|---|---|
| committer | Rob Landley <rob@landley.net> | 2016-03-22 13:16:44 -0500 |
| commit | c23186d3ee6001b78c843fc3609575306c687ba2 (patch) | |
| tree | 41cdd2c7cdd63178c2d8f69b6fc7a085a12fddf4 /toys/other/blkid.c | |
| parent | 6aba814b28cddd45c7301c39dccd65b316eb5c82 (diff) | |
| download | toybox-c23186d3ee6001b78c843fc3609575306c687ba2.tar.gz | |
blkid: Handle short/empty vfat labels; update tests
vfat labels have a fixed space allocated for them. In the case of a
shorter label, the remaining bytes are padded with spaces. A vfat
filesystem with no label (i.e. that will show up in Windows as "Local
Disk (X:)" or "Removable Disk (X:)") is stored as "NO NAME ".
Both of these changes match behavior from util-linux.
Diffstat (limited to 'toys/other/blkid.c')
| -rw-r--r-- | toys/other/blkid.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/toys/other/blkid.c b/toys/other/blkid.c index 2880812a..c701c800 100644 --- a/toys/other/blkid.c +++ b/toys/other/blkid.c @@ -115,9 +115,17 @@ static void do_blkid(int fd, char *name) // output for blkid printf("%s:",name); - if (fstypes[i].label_len) - printf(" LABEL=\"%.*s\"", fstypes[i].label_len, - toybuf+fstypes[i].label_off-off); + if (fstypes[i].label_len) { + int label_len = fstypes[i].label_len, loff = fstypes[i].label_off-off; + if (!strcmp(fstypes[i].name, "vfat")) { + if (!strncmp(toybuf+loff, "NO NAME ", label_len)) + label_len=0; + else while (toybuf[loff+label_len-1] == ' ') + label_len--; + } + if (label_len) + printf(" LABEL=\"%.*s\"", label_len, toybuf+loff); + } if (fstypes[i].uuid_off) { int bits = 0x550, size = fstypes[i].uuid_off >> 24, |