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utils: defensive programming

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If caller passed the size of array not string length, it is possible to be accessed out of bounds.

Reorder conditions can prevent access invalid index of array.

Signed-off-by: 2xsec <dh48.jeong@samsung.com>
This commit is contained in:
2xsec 2018-09-04 11:10:18 +09:00
parent 22b67bfa96
commit 91d9cab6de
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GPG Key ID: 0BE2750EE612F372
1 changed files with 2 additions and 2 deletions
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src/lxc/utils.c
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@ -898,10 +898,10 @@ static char *get_nextpath(char *path, int *offsetp, int fulllen)
if (offset >= fulllen)
return NULL;
while (path[offset] != '\0' && offset < fulllen)
while (offset < fulllen && path[offset] != '\0')
offset++;
while (path[offset] == '\0' && offset < fulllen)
while (offset < fulllen && path[offset] == '\0')
offset++;
*offsetp = offset;