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macro: calculate buffer lengths correctly

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Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
This commit is contained in:
Christian Brauner 2018-09-01 00:53:33 +02:00
parent 54dcfd8160
commit 0c9b1f826d
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1 changed files with 22 additions and 5 deletions
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27
src/lxc/macro.h
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@ -155,13 +155,30 @@
* +
* \0 = 1
*/
#define LXC_PROC_PID_FD_LEN (6 + INTTYPE_TO_STRLEN(pid_t) + 4 + INTTYPE_TO_STRLEN(int) + 1)
#define LXC_PROC_PID_FD_LEN \
(6 + INTTYPE_TO_STRLEN(pid_t) + 4 + INTTYPE_TO_STRLEN(int) + 1)
/* /proc/pid-to-str/status\0 = (5 + INTTYPE_TO_STRLEN(pid_t) + 7 + 1) */
#define LXC_PROC_STATUS_LEN (5 + INTTYPE_TO_STRLEN(pid_t) + 7 + 1)
/* /proc/ = 6
* +
* <pid-as-str> = INTTYPE_TO_STRLEN(pid_t)
* +
* /status = 7
* +
* \0 = 1
*/
#define LXC_PROC_STATUS_LEN (6 + INTTYPE_TO_STRLEN(pid_t) + 7 + 1)
/* /proc/pid-to-str/attr/current = (5 + INTTYPE_TO_STRLEN(pid_t) + 7 + 1) */
#define LXC_LSMATTRLEN (5 + INTTYPE_TO_STRLEN(pid_t) + 7 + 1)
/* /proc/ = 6
* +
* <pid-as-str> = INTTYPE_TO_STRLEN(pid_t)
* +
* /attr/ = 6
* +
* /current = 8
* +
* \0 = 1
*/
#define LXC_LSMATTRLEN (6 + INTTYPE_TO_STRLEN(pid_t) + 6 + 8 + 1)
#define LXC_CMD_DATA_MAX (MAXPATHLEN * 2)