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lxc/utils: improve choose_init code readability

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Signed-off-by: Silvio Fricke <silvio.fricke@gmail.com>
This commit is contained in:
Silvio Fricke 2014-11-12 08:38:59 +01:00
parent 5d20559cff
commit 370ec268c2
1 changed files with 9 additions and 14 deletions
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23
src/lxc/utils.c
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@ -1391,6 +1391,8 @@ bool file_exists(const char *f)
char *choose_init(const char *rootfs)
{
char *retv = NULL;
const char *empty = "",
*tmp;
int ret, env_set = 0;
struct stat mystat;
@ -1415,9 +1417,11 @@ char *choose_init(const char *rootfs)
return NULL;
if (rootfs)
ret = snprintf(retv, PATH_MAX, "%s/%s/init.lxc", rootfs, SBINDIR);
tmp = rootfs;
else
ret = snprintf(retv, PATH_MAX, SBINDIR "/init.lxc");
tmp = empty;
ret = snprintf(retv, PATH_MAX, "%s/%s/%s", tmp, SBINDIR, "/init.lxc");
if (ret < 0 || ret >= PATH_MAX) {
ERROR("pathname too long");
goto out1;
@ -1427,10 +1431,7 @@ char *choose_init(const char *rootfs)
if (ret == 0)
return retv;
if (rootfs)
ret = snprintf(retv, PATH_MAX, "%s/%s/lxc/lxc-init", rootfs, LXCINITDIR);
else
ret = snprintf(retv, PATH_MAX, LXCINITDIR "/lxc/lxc-init");
ret = snprintf(retv, PATH_MAX, "%s/%s/%s", tmp, LXCINITDIR, "/lxc/lxc-init");
if (ret < 0 || ret >= PATH_MAX) {
ERROR("pathname too long");
goto out1;
@ -1440,10 +1441,7 @@ char *choose_init(const char *rootfs)
if (ret == 0)
return retv;
if (rootfs)
ret = snprintf(retv, PATH_MAX, "%s/usr/lib/lxc/lxc-init", rootfs);
else
ret = snprintf(retv, PATH_MAX, "/usr/lib/lxc/lxc-init");
ret = snprintf(retv, PATH_MAX, "%s/usr/lib/lxc/lxc-init", tmp);
if (ret < 0 || ret >= PATH_MAX) {
ERROR("pathname too long");
goto out1;
@ -1452,10 +1450,7 @@ char *choose_init(const char *rootfs)
if (ret == 0)
return retv;
if (rootfs)
ret = snprintf(retv, PATH_MAX, "%s/sbin/lxc-init", rootfs);
else
ret = snprintf(retv, PATH_MAX, "/sbin/lxc-init");
ret = snprintf(retv, PATH_MAX, "%s/sbin/lxc-init", tmp);
if (ret < 0 || ret >= PATH_MAX) {
ERROR("pathname too long");
goto out1;