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cgroup: use xsprintf() in rewrite_cgsets()

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v2:
Added free of original cg->path.

Signed-off-by: Stanislav Kinsburskiy <skinsbursky@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Stanislav Kinsburskiy 2015-12-17 15:29:14 +03:00 • committed by Pavel Emelyanov
parent 696eeef6b4
commit cdd2733b0a
1 changed files with 6 additions and 10 deletions
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16
cgroup.c
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@ -1313,18 +1313,14 @@ static int rewrite_cgsets(CgroupEntry *cge, char **controllers, int n_controller
/* +1 to get rid of leading / */
strstartswith(cg->path + 1, from)) {
char *tmp = cg->path;
/* +1 to get rid of leading /, again */
int off = strlen(from) + 1;
/* +1 for trailing NULL */
int newlen = strlen(to) + strlen(cg->path + off) + 1;
char *m = xmalloc(newlen * sizeof(char*));
if (!m)
cg->path = xsprintf("%s%s", to, cg->path +
strlen(from) + 1);
if (!cg->path)
return -1;
sprintf(m, "%s%s", to, cg->path + off);
free(cg->path);
cg->path = m;
free(tmp);
}
}