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* grub-core/kern/partition.c (grub_partition_get_name): Simplify logic

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and improve performance.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2012-01-29 16:24:07 +01:00
parent 5858b42d07
commit f6c434d581
2 changed files with 18 additions and 22 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2012-01-29 Vladimir Serbinenko <phcoder@gmail.com>
* grub-core/kern/partition.c (grub_partition_get_name): Simplify logic
and improve performance.
2012-01-29 Vladimir Serbinenko <phcoder@gmail.com>
* grub-core/kern/ieee1275/openfw.c (grub_ieee1275_encode_devname): Fix

35
grub-core/kern/partition.c
View file

@ -223,32 +223,23 @@ grub_partition_iterate (struct grub_disk *disk,
char *
grub_partition_get_name (const grub_partition_t partition)
{
char *out = 0;
int curlen = 0;
char *out = 0, *ptr;
grub_size_t needlen = 0;
grub_partition_t part;
for (part = partition; part; part = part->parent)
/* Even on 64-bit machines this buffer is enough to hold
longest number. */
needlen += grub_strlen (part->partmap->name) + 27;
out = grub_malloc (needlen);
if (!out)
return NULL;
ptr = out;
for (part = partition; part; part = part->parent)
{
/* Even on 64-bit machines this buffer is enough to hold
longest number. */
char buf[grub_strlen (part->partmap->name) + 25];
int strl;
grub_snprintf (buf, sizeof (buf), "%s%d", part->partmap->name,
grub_snprintf (ptr, needlen - (out - ptr), "%s%d", part->partmap->name,
part->number + 1);
strl = grub_strlen (buf);
if (curlen)
{
out = grub_realloc (out, curlen + strl + 2);
grub_memcpy (out + strl + 1, out, curlen);
out[curlen + 1 + strl] = 0;
grub_memcpy (out, buf, strl);
out[strl] = ',';
curlen = curlen + 1 + strl;
}
else
{
curlen = strl;
out = grub_strdup (buf);
}
ptr += grub_strlen (ptr);
}
return out;
}