util-linux/include/env.h
Sami Kerola ed292a08dd
include: add remove_entry() to env.h
A function to remove an command-line option argument, or environment
variable.

Requested-by: Karel Zak <kzak@redhat.com>
Reference: https://github.com/karelzak/util-linux/pull/1003#discussion_r403988092
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2020-04-13 12:14:08 +01:00

28 lines
635 B
C

#ifndef UTIL_LINUX_ENV_H
#define UTIL_LINUX_ENV_H
#include "c.h"
#include "nls.h"
extern void sanitize_env(void);
extern char *safe_getenv(const char *arg);
#ifndef XSETENV_EXIT_CODE
# define XSETENV_EXIT_CODE EXIT_FAILURE
#endif
static inline void xsetenv(char const *name, char const *val, int overwrite)
{
if (setenv(name, val, overwrite) != 0)
err(XSETENV_EXIT_CODE, _("failed to set the %s environment variable"), name);
}
static inline int remote_entry(char **argv, int remove, int last)
{
memmove(argv + remove, argv + remove + 1, sizeof(char *) * (last - remove));
return last - 1;
}
#endif /* UTIL_LINUX_ENV_H */