static int builtin_help(shell_context_t *ctx, int argc, char *argv[]) {
int maxwidth = 0;
shell_enumerate_commands(ctx, help_maxwidth_function, &maxwidth);
maxwidth += 2;
return shell_enumerate_commands(ctx, help_print_function, &maxwidth);
}
static char *shell_completion(const char *partial, int state) {
static int completion_pass = 0, completion_matches_offset = 0;
if(state == 0) {
if(completion_matches) {
for(int i = 0; i < completion_matches_count; i++)
if(completion_matches[i])
free(completion_matches[i]);
free(completion_matches);
completion_matches = NULL;
completion_matches_count = 0;
}
completion_pass = 0;
char *tmp = rl_line_buffer;
while(isspace(*tmp)) tmp++;
int not_first = 0;
for(; *tmp; tmp++) {
for(const char *sep = rl_basic_word_break_characters; *sep; sep++) {
if(*tmp == *sep) {
not_first = 1;
break;
}
}
if(not_first)
break;
}
if(not_first) {
completion_pass = 1;
return rl_filename_completion_function(partial, state);
} else {
shell_enumerate_commands(completion_context, shell_completion_filler, (void *) partial);
completion_matches_offset = 0;
}
}
if(completion_pass) {
return rl_filename_completion_function(partial, state);
} else if(completion_matches_offset == completion_matches_count) {
return NULL;
} else {
char *val = completion_matches[completion_matches_offset];
completion_matches[completion_matches_offset++] = NULL;
return val;
}
}
int shell_run(shell_context_t *ctx, int argc, char *argv[]) {
shell_run_data_t data = { argc, argv };
int ret = shell_enumerate_commands(ctx, shell_run_function, &data);
if(ret == 0) {
debug(LEVEL_ERROR, "Bad command '%s'\n", argv[0]);
errno = EINVAL;
return -1;
} else if(ret == 1) {
return 0;
} else
return ret;
}
