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hush: fix nofork + ctrl-Z clobbering of globals

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This commit is contained in:
Denis Vlasenko
2007-04-28 16:43:18 +00:00
parent a6a1785a30
commit 18e19f2b0d
3 changed files with 58 additions and 37 deletions
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14
include/libbb.h
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@ -509,10 +509,20 @@ int wait_nohang(int *wstat);
#define wait_exitcode(w) ((w) >> 8)
#define wait_stopsig(w) ((w) >> 8)
#define wait_stopped(w) (((w) & 127) == 127)
/* Does NOT check that applet is NOFORK, just blindly runs it */
int run_nofork_applet(const struct bb_applet *a, char **argv);
/* wait4pid(spawn(argv)) + NOFORK/NOEXEC (if configured) */
int spawn_and_wait(char **argv);
struct nofork_save_area {
const struct bb_applet *current_applet;
int xfunc_error_retval;
uint32_t option_mask32;
int die_sleep;
smallint saved;
};
void save_nofork_data(struct nofork_save_area *save);
void restore_nofork_data(struct nofork_save_area *save);
/* Does NOT check that applet is NOFORK, just blindly runs it */
int run_nofork_applet(const struct bb_applet *a, char **argv);
int run_nofork_applet_prime(struct nofork_save_area *old, const struct bb_applet *a, char **argv);
/* Helpers for daemonization.
*