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Btrfs-progs: don't allocate one byte too much each time

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str1 + '/' + str2 + '\0' requires a buffer with the size
strlen(str1) + strlen(str2) + 2 bytes.

str1 + '/' + str2 + '/' + str3 + '\0' requires a buffer with the size
strlen(str1) + strlen(str2) + strlen(str3) + 3 bytes.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
This commit is contained in:
Stefan Behrens 2013-04-09 19:08:41 +02:00 committed by David Sterba
parent 46de1a6ec3
commit 7c04a4444e
1 changed files with 2 additions and 2 deletions
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4
send-utils.c
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@ -332,7 +332,7 @@ char *path_cat(const char *p1, const char *p2)
{
int p1_len = strlen(p1);
int p2_len = strlen(p2);
char *new = malloc(p1_len + p2_len + 3);
char *new = malloc(p1_len + p2_len + 2);
if (p1_len && p1[p1_len - 1] == '/')
p1_len--;
@ -348,7 +348,7 @@ char *path_cat3(const char *p1, const char *p2, const char *p3)
int p1_len = strlen(p1);
int p2_len = strlen(p2);
int p3_len = strlen(p3);
char *new = malloc(p1_len + p2_len + p3_len + 4);
char *new = malloc(p1_len + p2_len + p3_len + 3);
if (p1_len && p1[p1_len - 1] == '/')
p1_len--;