/*************************************************************************
* (C) 2010 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
* by Michael Pounov <misho@openbsd-bg.org>
*
* $Author: misho $
* $Id: aitcli.c,v 1.1 2010/04/16 13:20:29 misho Exp $
*
*************************************************************************/
#include "global.h"
#pragma GCC visibility push(hidden)
cliCommands_t cli_stdCmds[] = {
{ "test", cli_Cmd_Unsupported, "Test - Don`t use default command structure!", "test <cr>", cli_Comp_Filename },
{ "-------", NULL, "---------------------", NULL, NULL },
{ "help", cli_Cmd_Help, "Help screen", "help [command] <cr>", NULL },
{ "exit", cli_Cmd_Exit, "Exit from console", "exit <cr>", NULL },
{ NULL, NULL, NULL, NULL }
};
// ------------------------------------------------
int cli_Errno;
char cli_Error[STRSIZ];
#pragma GCC visibility pop
// cli_GetErrno() Get error code of last operation
inline int cli_GetErrno()
{
return cli_Errno;
}
// io_GetError() Get error text of last operation
inline const char *cli_GetError()
{
return cli_Error;
}
// cli_SetErr() Set error to variables for internal use!!!
inline void cli_SetErr(int eno, char *estr, ...)
{
va_list lst;
cli_Errno = eno;
memset(cli_Error, 0, STRSIZ);
va_start(lst, estr);
vsnprintf(cli_Error, STRSIZ, estr, lst);
va_end(lst);
}
// ------------------------------------------------------------
/*
* cli_Printf() Printf CLI features
* @out = Output stream
* @csFormat = Printf format string
* return: none
*/
inline int cli_Printf(FILE *out, const char *csFormat, ...)
{
va_list lst;
int ret;
va_start(lst, csFormat);
ret = vfprintf(out, csFormat, lst);
if (-1 == ret)
LOGERR;
va_end(lst);
return ret;
}
/*
* cliComp() Initialize completion CLI features
* @cmdComplete = Completion function
* @cmdEntry = Compentry function
* return: none
*/
inline void cliComp(cli_Completion_t *cmdComplete, cli_CompEntry_t *cmdEntry)
{
// command completon
rl_attempted_completion_function = cmdComplete;
rl_completion_entry_function = cmdEntry;
}
/*
* cliExec() Execute CLI main loop
* @cmdList = Commands list
* @out = Output handle
* @csPrompt = Prompt text
* return: -1 error, 0 = exit w/^+D, 1 done.
*/
int cliExec(cliCommands_t *cmdList, FILE *out, const char *csPrompt)
{
char *line, *s, *t, **app, *items[MAX_PROMPT_ITEMS];
int ret = 0;
register int i;
cliCommands_t *cmd = NULL;
inline int inline_help()
{
cli_Cmd_Help(cmdList ? cmdList : cli_stdCmds, -1, out, NULL);
rl_on_new_line();
return 0;
}
char **cli_stdCompletion(const char *text, int start, int end)
{
register int i;
char **matches = NULL;
char *cmdCompGet(const char *text, int state)
{
int len = strlen(text);
for (i = state; cmdList[i].cmd_name; i++) {
if (strncmp(cmdList[i].cmd_name, "---", 3) &&
!strncmp(cmdList[i].cmd_name, text, len))
return strdup(cmdList[i].cmd_name);
}
return NULL;
}
if (!start)
matches = rl_completion_matches(text, cmdCompGet);
else
for (i = 0; cmdList[i].cmd_name; i++) {
if (!cmdList[i].cmd_comp)
continue;
if (!strncmp(rl_line_buffer, cmdList[i].cmd_name, strlen(cmdList[i].cmd_name)))
matches = rl_completion_matches(text, cmdList[i].cmd_comp);
}
return matches;
}
char *cli_stdCompEntry(const char *ignore, int invoking_key)
{
return NULL;
}
/* --- main body of CLI --- */
rl_bind_key('?', inline_help);
if (!rl_attempted_completion_function)
cliComp(cli_stdCompletion, cli_stdCompEntry);
do {
line = readline(csPrompt);
if (!line) { // ^+d
cli_Printf(out, "\n");
break;
}
// clear whitespaces
for (s = line; isspace(*s); s++);
if (*s) {
for (t = s + strlen(s) - 1; t > s && isspace(*t); t--);
*++t = 0;
}
if (*s) {
add_history(s);
memset(items, 0, sizeof(char*) * MAX_PROMPT_ITEMS);
for (app = items; app < items + MAX_PROMPT_ITEMS - 1 && (*app = strsep(&s, " \t"));
*app ? app++ : app);
/*
for (i = 0; i < MAX_PROMPT_ITEMS; i++)
cli_Printf(out, "i=%d %s\n", i, items[i]);
*/
// exec_cmd ...
for (cmd = NULL, i = 0; cmdList[i].cmd_name; i++)
if (*items[0] && !strncmp(cmdList[i].cmd_name, items[0], strlen(items[0]))) {
cmd = &cmdList[i];
break;
}
if (!cmd) {
cli_Printf(out, "Command '%s' not found!\n", items[0]);
ret = -1;
} else
ret = cmd->cmd_func(cmdList, i, out, items);
}
free(line);
} while (ret < 1);
return ret;
}
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