int input_init()
{
int status = CLI_RET_UNKNOWN;
if (gl) {
input_deinit();
}
gl = new_GetLine(CLI_MAX_LINE_LEN, CLI_MAX_HIST_LEN);
if (gl) {
/* Try to set up a clean exit on these signals. If it fails, we'll
* trudge along with a warning */
if (gl_trap_signal(gl, SIGINT, GLS_DONT_FORWARD, GLS_ABORT, EINTR) ||
gl_trap_signal(gl, SIGQUIT, GLS_DONT_FORWARD, GLS_ABORT, EINTR)) {
fprintf(stderr, SIGHANLDER_FAILED);
}
tab_complete = new_WordCompletion();
if (tab_complete != NULL) {
gl_customize_completion(gl, NULL, tab_completion);
} else {
/* Non-fatal - complain and carry on */
fprintf(stderr, "Failed to initialize tab-completion.\n");
}
status = 0;
}
return status;
}
/*.......................................................................
* Create a new DemoRes object containing the resources needed by the
* demo.
*
* Output:
* return DemoRes * The new object, or NULL on error.
*/
static DemoRes *new_DemoRes(void)
{
DemoRes *res; /* The object to be returned */
/*
* Allocate the container.
*/
res = (DemoRes *)malloc(sizeof(DemoRes));
if(!res) {
fprintf(stderr, "new_DemoRes: Insufficient memory.\n");
return NULL;
};
/*
* Before attempting any operation that might fail, initialize the
* container at least up to the point at which it can safely be passed
* to del_DemoRes().
*/
res->gl = NULL;
res->pc = NULL;
res->ppc = NULL;
/*
* Create the line editor, specifying a max line length of 500 bytes,
* and 10000 bytes to allocate to storage of historical input lines.
*/
res->gl = new_GetLine(500, 10000);
if(!res->gl)
return del_DemoRes(res);
/*
* Enable text attribute formatting directives in prompt strings.
*/
gl_prompt_style(res->gl, GL_FORMAT_PROMPT);
/*
* Allocate a cache of the executable files found in the user's path.
*/
res->pc = new_PathCache();
if(!res->pc)
return del_DemoRes(res);
/*
* Populate the cache with the contents of the user's path.
*/
if(pca_scan_path(res->pc, getenv("PATH")))
return del_DemoRes(res);
/*
* Arrange for susequent calls to pca_lookup_file() and pca_path_completions()
* to only report files that are executable by the user.
*/
pca_set_check_fn(res->pc, cpl_check_exe, NULL);
/*
* Allocate a configuration object for use with pca_path_completions().
*/
res->ppc = new_PcaPathConf(res->pc);
if(!res->ppc)
return del_DemoRes(res);
/*
* Replace the builtin filename completion callback with one which
* searches for completions of executables in the user's path when
* invoked on a word at the start of the path, and completes files
* elsewhere.
*/
if(gl_customize_completion(res->gl, res, demo_cpl_fn))
return del_DemoRes(res);
return res;
}
int
engine_interp()
{
#ifdef NATIVE_BUILD
uu_die("native build does not support interactive mode.");
#else
char *selfmri;
size_t sfsz;
int r;
extern int parens;
(void) sigset(SIGINT, SIG_IGN);
est->sc_gl = new_GetLine(512, 8000);
if (est->sc_gl == NULL)
uu_die(gettext("Out of memory.\n"));
/* The longest string is "[snapname]fmri[:instname]> ". */
sfsz = 1 + max_scf_name_len + 1 + max_scf_fmri_len + 2 +
max_scf_name_len + 1 + 2 + 1;
selfmri = safe_malloc(sfsz);
r = gl_customize_completion(est->sc_gl, NULL, complete);
assert(r == 0);
for (;;) {
lscf_get_selection_str(selfmri, sfsz - 2);
(void) strcat(selfmri, "> ");
est->sc_cmd_buf = gl_get_line(est->sc_gl, selfmri, NULL, -1);
if (est->sc_cmd_buf == NULL) {
switch (gl_return_status(est->sc_gl)) {
case GLR_SIGNAL:
gl_abandon_line(est->sc_gl);
continue;
case GLR_EOF:
break;
case GLR_ERROR:
uu_die(gettext("Error reading terminal: %s.\n"),
gl_error_message(est->sc_gl, NULL, 0));
/* NOTREACHED */
default:
#ifndef NDEBUG
(void) fprintf(stderr, "%s:%d: gl_get_line() "
"returned unexpected value %d.\n", __FILE__,
__LINE__, gl_return_status(est->sc_gl));
#endif
abort();
}
break;
}
parens = 0;
est->sc_cmd_bufsz = strlen(est->sc_cmd_buf);
est->sc_cmd_bufoff = 0;
est->sc_cmd_flags = SC_CMD_IACTIVE;
(void) yyparse();
}
free(selfmri);
est->sc_gl = del_GetLine(est->sc_gl); /* returns NULL */
#endif /* NATIVE_BUILD */
return (0);
}
int
cexp_main1(int argc, char **argv, void (*callback)(int argc, char **argv, CexpContext ctx))
{
CexpContextRec context; /* the public parts of this instance's context */
CexpContext myContext;
char *line=0, *prompt=0, *tmp;
char *symfile=0, *script=0;
int rval=CEXP_MAIN_INVAL_ARG, quiet=0;
MyGetOptCtxtRec oc={0}; /* must be initialized */
int opt;
#ifdef HAVE_TECLA
#define rl_context context.gl
#else
#define rl_context 0
#endif
char optstr[]={
'h',
'v',
's',':',
'a',':',
'p',':',
#ifdef YYDEBUG
'd',
#endif
'q',
'\0'
};
context.prompt = 0;
context.parser = 0;
while ((opt=mygetopt_r(argc, argv, optstr,&oc))>=0) {
switch (opt) {
default: fprintf(stderr,"Unknown Option %c\n",opt);
case 'h': usage(argv[0]);
case 'v': version(argv[0]);
return 0;
#ifdef YYDEBUG
case 'd': cexpdebug=1;
break;
#endif
case 'q': quiet=1;
break;
case 's': symfile=oc.optarg;
break;
case 'a': cexpBuiltinCpuArch = oc.optarg;
break;
case 'p': free(context.prompt); context.prompt = strdup(oc.optarg);
break;
}
}
if (argc>oc.optind)
script=argv[oc.optind];
/* make sure vital code is initialized */
{
static int initialized=0;
cexpContextRunOnce(&initialized, cexpInit);
}
if (!cexpSystemModule) {
if (!symfile) {
/* try to find a builtin table */
if ( !cexpModuleLoad(0,0) )
fprintf(stderr,"No builtin symbol table -- need a symbol file argument\n");
} else if (!cexpModuleLoad(symfile,"SYSTEM"))
fprintf(stderr,"Unable to load system symbol table\n");
if (!cexpSystemModule) {
usage(argv[0]);
return CEXP_MAIN_NO_SYMS;
}
}
#ifdef USE_MDBG
mdbgInit();
#endif
/* initialize the public context */
context.next=0;
#ifdef HAVE_BFD_DISASSEMBLER
{
extern void cexpDisassemblerInit();
cexpDisassemblerInit(&context.dinfo, stdout);
}
#endif
cexpContextGetCurrent(&myContext);
if (!myContext) {
/* topmost frame */
#ifdef HAVE_TECLA
context.gl = new_GetLine(200,2000);
if (!context.gl) {
fprintf(stderr,"Unable to create line editor\n");
return CEXP_MAIN_NO_MEM;
}
/* mute warnings about being unable to
* read ~/.teclarc
*/
gl_configure_getline(context.gl,0,0,0);
#endif
/* register first instance running in this thread's context; */
cexpContextRegister();
if (!quiet)
hello();
} else {
#ifdef HAVE_TECLA
/* re-use caller's line editor */
context.gl = myContext->gl;
#endif
}
/* push our frame to the top */
context.next = myContext;
myContext = &context;
cexpContextSetCurrent(myContext);
/* See if there is an ancestor with a local prompt
* and inherit
*/
if ( !context.prompt && context.next && context.next->prompt )
context.prompt = strdup(context.next->prompt);
do {
if (!(context.parser=cexpCreateParserCtx(quiet ? 0 : stdout))) {
fprintf(stderr,"Unable to create parser context\n");
usage(argv[0]);
rval = CEXP_MAIN_NO_MEM;
goto cleanup;
}
#ifdef HAVE_TECLA
{
CPL_MATCH_FN(cexpSymComplete);
gl_customize_completion(context.gl, context.parser, cexpSymComplete);
}
#endif
if (cexpSigHandlerInstaller)
cexpSigHandlerInstaller(sighandler);
if (!(rval=setjmp(context.jbuf))) {
/* call them back to pass the jmpbuf */
if (callback)
callback(argc, argv, &context);
if (script) {
if ( (rval = process_script(context.parser, script, quiet)) )
goto cleanup;
} else {
while ( (line=readline_r(
checkPrompt( &context, &prompt, argc > 0 ? argv[0] : "Cexp" ),
rl_context)) ) {
/* skip empty lines */
if (*line) {
if ( '<' == *(tmp=skipsp(line)) ) {
process_script(context.parser,tmp+1,quiet);
} else {
/* interactively process this line */
cexpResetParserCtx(context.parser,line);
cexpparse((void*)context.parser);
add_history(line);
}
}
free(line); line=0;
}
}
} else {
fprintf(stderr,"\nOops, exception caught\n");
/* setjmp passes 0: first time
* 1: longjmp(buf,0) or longjmp(buf,1)
* other: longjmp(buf,other)
*/
rval = (rval<2 ? -1 : CEXP_MAIN_KILLED);
}
cleanup:
script=0; /* become interactive if script is killed */
free(line); line=0;
free(prompt); prompt=0;
cexpFreeParserCtx(context.parser); context.parser=0;
} while (-1==rval);
free(context.prompt);
/* pop our stack context from the chained list anchored
* at the running thread
*/
myContext = myContext->next;
cexpContextSetCurrent(myContext);
if ( ! myContext ) {
/* we'll exit the topmost instance */
#ifdef HAVE_TECLA
del_GetLine(context.gl);
#endif
cexpContextUnregister();
}
return rval;
}
/*.......................................................................
* This program demonstrates how to use gl_get_line() as a line editor to
* to enable users to enter input. It takes no arguments.
*/
int main(int argc, char *argv[])
{
char *line; /* A line of input */
GetLine *gl; /* The line editor */
int major,minor,micro; /* The version number of the library */
int retval;
/*
* Create the line editor, specifying a max line length of 500 bytes,
* and 10000 bytes to allocate to storage of historical input lines.
*/
gl = new_GetLine(500, 5000);
if(!gl)
return 1;
/* setup CLI tab line completion */
retval = gl_customize_completion(gl,
my_tab_context_string_array,
my_tab_callback);
if (retval != 0) {
printf("\nError: cannot set GL tab completion");
return 1;
}
/*
* If the user has the LC_CTYPE or LC_ALL environment variables set,
* enable display of characters corresponding to the specified locale.
*/
(void) setlocale(LC_CTYPE, "");
/*
* Lookup and display the version number of the library.
*/
libtecla_version(&major, &minor, µ);
printf("\n Welcome to the main demo program of libtecla version %d.%d.%d\n",
major, minor, micro);
/*
* Display an introductory banner.
*/
show_demo_introduction(gl);
/*
* Load history.
*/
#ifndef WITHOUT_FILE_SYSTEM
(void) gl_load_history(gl, "~/.demo_history", "#");
#endif
/*
* Read lines of input from the user and print them to stdout.
*/
do {
/*
* Get a new line from the user.
*/
line = gl_get_line(gl, "$ ", NULL, 0);
if(!line)
break;
/*
* Display what was entered.
*/
if(printf("You entered: %s", line) < 0 || fflush(stdout))
break;
/*
* If the user types "exit", quit the program.
*/
if(strcmp(line, "exit\n")==0)
break;
else if(strcmp(line, "history\n")==0)
gl_show_history(gl, stdout, "%N %T %H\n", 0, -1);
else if(strcmp(line, "size\n")==0) {
GlTerminalSize size = gl_terminal_size(gl, 80, 24);
printf("Terminal size = %d columns x %d lines.\n", size.ncolumn,
size.nline);
} else if(strcmp(line, "clear\n")==0) {
if(gl_erase_terminal(gl))
return 1;
};
} while(1);
/*
* Save historical command lines.
*/
#ifndef WITHOUT_FILE_SYSTEM
(void) gl_save_history(gl, "~/.demo_history", "#", -1);
#endif
/*
* Clean up.
*/
gl = del_GetLine(gl);
return 0;
}
int
interactive_loop(int fd_in, int fd_out, char *file1, char *file2)
{
char *pwd;
char *dir = NULL;
char cmd[2048];
struct sftp_conn *conn;
int err, interactive;
void *il = NULL;
#ifdef USE_LIBEDIT
EditLine *el = NULL;
History *hl = NULL;
HistEvent hev;
if (!batchmode && isatty(STDIN_FILENO)) {
if ((il = el = el_init(__progname, stdin, stdout, stderr)) == NULL)
fatal("Couldn't initialise editline");
if ((hl = history_init()) == NULL)
fatal("Couldn't initialise editline history");
history(hl, &hev, H_SETSIZE, 100);
el_set(el, EL_HIST, history, hl);
el_set(el, EL_PROMPT, prompt);
el_set(el, EL_EDITOR, "emacs");
el_set(el, EL_TERMINAL, NULL);
el_set(el, EL_SIGNAL, 1);
el_source(el, NULL);
}
#else
#ifdef USE_LIBTECLA
GetLine *gl = NULL;
if (!batchmode && isatty(STDIN_FILENO)) {
if ((il = gl = new_GetLine(MAX_LINE_LEN, MAX_CMD_HIST)) == NULL)
fatal("Couldn't initialize GetLine");
if (gl_customize_completion(gl, NULL, nomatch) != 0) {
(void) del_GetLine(gl);
fatal("Couldn't register completion function");
}
}
#endif /* USE_LIBTECLA */
#endif /* USE_LIBEDIT */
conn = do_init(fd_in, fd_out, copy_buffer_len, num_requests);
if (conn == NULL)
fatal("Couldn't initialise connection to server");
pwd = do_realpath(conn, ".");
if (pwd == NULL)
fatal("Need cwd");
if (file1 != NULL) {
dir = xstrdup(file1);
dir = make_absolute(dir, pwd);
if (remote_is_dir(conn, dir) && file2 == NULL) {
printf(gettext("Changing to: %s\n"), dir);
snprintf(cmd, sizeof cmd, "cd \"%s\"", dir);
if (parse_dispatch_command(conn, cmd, &pwd, 1) != 0) {
xfree(dir);
xfree(pwd);
xfree(conn);
return (-1);
}
} else {
if (file2 == NULL)
snprintf(cmd, sizeof cmd, "get %s", dir);
else
snprintf(cmd, sizeof cmd, "get %s %s", dir,
file2);
err = parse_dispatch_command(conn, cmd, &pwd, 1);
xfree(dir);
xfree(pwd);
xfree(conn);
return (err);
}
xfree(dir);
}
#if defined(HAVE_SETVBUF) && !defined(BROKEN_SETVBUF)
setvbuf(stdout, NULL, _IOLBF, 0);
setvbuf(infile, NULL, _IOLBF, 0);
#else
setlinebuf(stdout);
setlinebuf(infile);
#endif
interactive = !batchmode && isatty(STDIN_FILENO);
err = 0;
for (;;) {
char *cp;
signal(SIGINT, SIG_IGN);
if (il == NULL) {
if (interactive)
printf("sftp> ");
if (fgets(cmd, sizeof(cmd), infile) == NULL) {
if (interactive)
printf("\n");
break;
}
if (!interactive) { /* Echo command */
printf("sftp> %s", cmd);
if (strlen(cmd) > 0 &&
cmd[strlen(cmd) - 1] != '\n')
printf("\n");
}
}
#ifdef USE_LIBEDIT
else {
const char *line;
int count = 0;
if ((line = el_gets(el, &count)) == NULL || count <= 0) {
printf("\n");
break;
}
history(hl, &hev, H_ENTER, line);
if (strlcpy(cmd, line, sizeof(cmd)) >= sizeof(cmd)) {
fprintf(stderr, gettext("Error: input line too long\n"));
continue;
}
}
#else
#ifdef USE_LIBTECLA
else {
const char *line;
line = gl_get_line(gl, "sftp> ", NULL, -1);
if (line != NULL) {
if (strlcpy(cmd, line, sizeof(cmd)) >=
sizeof(cmd)) {
fprintf(stderr, gettext(
"Error: input line too long\n"));
continue;
}
} else {
GlReturnStatus rtn;
rtn = gl_return_status(gl);
if (rtn == GLR_SIGNAL) {
gl_abandon_line(gl);
continue;
} else if (rtn == GLR_ERROR) {
fprintf(stderr, gettext(
"Error reading terminal: %s/\n"),
gl_error_message(gl, NULL, 0));
}
break;
}
}
#endif /* USE_LIBTECLA */
#endif /* USE_LIBEDIT */
cp = strrchr(cmd, '\n');
if (cp)
*cp = '\0';
/* Handle user interrupts gracefully during commands */
interrupted = 0;
signal(SIGINT, cmd_interrupt);
err = parse_dispatch_command(conn, cmd, &pwd, batchmode);
if (err != 0)
break;
}
