mirror of
https://github.com/opencontainers/runc.git
synced 2026-02-05 18:45:28 +01:00
35fddfd28f
...from nsexec.c so they can be used in cloned_binary.c. Signed-off-by: Cory Snider <csnider@mirantis.com>
28 lines
543 B
C
28 lines
543 B
C
#define _GNU_SOURCE
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include "getenv.h"
|
|
#include "log.h"
|
|
|
|
int getenv_int(const char *name)
|
|
{
|
|
char *val, *endptr;
|
|
int ret;
|
|
|
|
val = getenv(name);
|
|
/* Treat empty value as unset variable. */
|
|
if (val == NULL || *val == '\0')
|
|
return -ENOENT;
|
|
|
|
ret = strtol(val, &endptr, 10);
|
|
if (val == endptr || *endptr != '\0')
|
|
bail("unable to parse %s=%s", name, val);
|
|
/*
|
|
* Sanity check: this must be a non-negative number.
|
|
*/
|
|
if (ret < 0)
|
|
bail("bad value for %s=%s (%d)", name, val, ret);
|
|
|
|
return ret;
|
|
}
|