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/*
** ext_hook.c -- Run a program that hooks into some other system.
*/
#include <h/mh.h>
/*
** The filename arguments are given full path names.
** msg_filename2 might contain a NULL pointer if not needed.
** Look in the context for an error message if something goes wrong;
** there is a built-in message in case one isn't specified.
** Only produces the error message once.
*/
int
ext_hook(char *hook_name, char *msg_filename1, char *msg_filename2)
{
char *hook; /* hook program from context */
int status;
static int did_message = 0; /* we've already output a message */
if (!(hook = context_find(hook_name))) {
return (OK);
}
status = execprogl(mhbasename(hook), mhbasename(hook),
msg_filename1, msg_filename2,
(char *)NULL);
if (status != OK) {
if (did_message) {
return (NOTOK);
}
advise(NULL, "external hook (%s) failed.", hook);
did_message = 1;
return (NOTOK);
} else {
return (OK);
}
}
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