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Move signal code into its own source file and add sudo_sigaction()

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wrapper that has an extra flag to check the saved_signals list to
only install the handler if the signal is not already ignored.
Bump plugin API version for the new front-end signal behavior.
This commit is contained in:
Todd C. Miller
2013-01-17 13:29:46 -05:00
parent 99704cc101
commit 855a11af2b
8 changed files with 229 additions and 140 deletions
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11
src/sudo.h
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@@ -184,8 +184,6 @@ void zero_bytes(volatile void *, size_t);
/* exec.c */
int pipe_nonblock(int fds[2]);
int sudo_execute(struct command_details *details, struct command_status *cstat);
void restore_signals(void);
void save_signals(void);
/* term.c */
int term_cbreak(int);
@@ -218,7 +216,6 @@ int run_command(struct command_details *details);
int os_init_common(int argc, char *argv[], char *envp[]);
extern const char *list_user, *runas_user, *runas_group;
extern struct user_details user_details;
extern int signal_pipe[2];
/* sudo_edit.c */
int sudo_edit(struct command_details *details);
@@ -267,4 +264,12 @@ int sudo_setgroups(int ngids, const GETGROUPS_T *gids);
/* ttyname.c */
char *get_process_ttyname(void);
/* signal.c */
struct sigaction;
extern int signal_pipe[2];
int sudo_sigaction(int signo, struct sigaction *sa, struct sigaction *osa, bool update_only);
void init_signals(void);
void restore_signals(void);
void save_signals(void);
#endif /* _SUDO_SUDO_H */