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filter: allow returning exit code from filter

Selaa lähdekoodia 
Filters can now indicate a status back to cgit by means of the exit code
for exec, or the return value from close for Lua.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld
2014-01-14 18:07:23 +01:00
vanhempi ce56d89a26
commit 6ca734da8f
3 muutettua tiedostoa jossa 12 lisäystä ja 6 poistoa
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14
filter.c
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@ -106,7 +106,7 @@ static int open_exec_filter(struct cgit_filter *base, va_list ap)
static int close_exec_filter(struct cgit_filter *base)
{
struct cgit_exec_filter *filter = (struct cgit_exec_filter *)base;
int i, exit_status;
int i, exit_status = 0;
chk_non_negative(dup2(filter->old_stdout, STDOUT_FILENO),
"Unable to restore STDOUT");
@ -114,14 +114,14 @@ static int close_exec_filter(struct cgit_filter *base)
if (filter->pid < 0)
goto done;
waitpid(filter->pid, &exit_status, 0);
if (WIFEXITED(exit_status) && !WEXITSTATUS(exit_status))
if (WIFEXITED(exit_status))
goto done;
die("Subprocess %s exited abnormally", filter->cmd);
done:
for (i = 0; i < filter->base.argument_count; i++)
filter->argv[i + 1] = NULL;
return 0;
return WEXITSTATUS(exit_status);
}
@ -315,10 +315,14 @@ static int close_lua_filter(struct cgit_filter *base)
int ret = 0;
lua_getglobal(filter->lua_state, "filter_close");
if (lua_pcall(filter->lua_state, 0, 0, 0)) {
if (lua_pcall(filter->lua_state, 0, 1, 0)) {
error_lua_filter(filter);
ret = 1;
ret = -1;
} else {
ret = lua_tonumber(filter->lua_state, -1);
lua_pop(filter->lua_state, 1);
}
unhook_write();
return ret;
}