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/*
Unix SMB/CIFS implementation.
provide access to string functions
Copyright (C) Andrew Tridgell 2005
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "scripting/ejs/smbcalls.h"
#include "lib/ejs/ejs.h"
#include "system/passwd.h"
/*
usage:
var len = strlen(str);
*/
static int ejs_strlen(MprVarHandle eid, int argc, char **argv)
{
if (argc != 1) {
ejsSetErrorMsg(eid, "strlen invalid arguments");
return -1;
}
mpr_Return(eid, mprCreateIntegerVar(strlen_m(argv[0])));
return 0;
}
/*
usage:
var s = strlower("UPPER");
*/
static int ejs_strlower(MprVarHandle eid, int argc, char **argv)
{
char *s;
if (argc != 1) {
ejsSetErrorMsg(eid, "strlower invalid arguments");
return -1;
}
s = strlower_talloc(mprMemCtx(), argv[0]);
mpr_Return(eid, mprString(s));
talloc_free(s);
return 0;
}
/*
usage:
var s = strupper("lower");
*/
static int ejs_strupper(MprVarHandle eid, int argc, char **argv)
{
char *s;
if (argc != 1) {
ejsSetErrorMsg(eid, "strupper invalid arguments");
return -1;
}
s = strupper_talloc(mprMemCtx(), argv[0]);
mpr_Return(eid, mprString(s));
talloc_free(s);
return 0;
}
/*
usage:
list = split(".", "a.foo.bar");
NOTE: does not take a regular expression, unlink perl split()
*/
static int ejs_split(MprVarHandle eid, int argc, char **argv)
{
const char *separator;
char *s, *p;
struct MprVar ret;
int count = 0;
TALLOC_CTX *tmp_ctx = talloc_new(mprMemCtx());
if (argc != 2) {
ejsSetErrorMsg(eid, "split invalid arguments");
return -1;
}
separator = argv[0];
s = argv[1];
ret = mprObject("list");
while ((p = strstr(s, separator))) {
char *s2 = talloc_strndup(tmp_ctx, s, (int)(p-s));
mprAddArray(&ret, count++, mprString(s2));
talloc_free(s2);
s = p + strlen(separator);
}
if (*s) {
mprAddArray(&ret, count++, mprString(s));
}
talloc_free(tmp_ctx);
mpr_Return(eid, ret);
return 0;
}
/*
usage:
str = join("DC=", list);
*/
static int ejs_join(MprVarHandle eid, int argc, struct MprVar **argv)
{
int i;
const char *separator;
char *ret = NULL;
const char **list;
TALLOC_CTX *tmp_ctx = talloc_new(mprMemCtx());
if (argc != 2 ||
argv[0]->type != MPR_TYPE_STRING ||
argv[1]->type != MPR_TYPE_OBJECT) {
ejsSetErrorMsg(eid, "join invalid arguments");
return -1;
}
separator = mprToString(argv[0]);
list = mprToArray(tmp_ctx, argv[1]);
if (list == NULL || list[0] == NULL) {
talloc_free(tmp_ctx);
mpr_Return(eid, mprString(NULL));
return 0;
}
ret = talloc_strdup(tmp_ctx, list[0]);
if (ret == NULL) {
goto failed;
}
for (i=1;list[i];i++) {
ret = talloc_asprintf_append(ret, "%s%s", separator, list[i]);
if (ret == NULL) {
goto failed;
}
}
mpr_Return(eid, mprString(ret));
talloc_free(tmp_ctx);
return 0;
failed:
ejsSetErrorMsg(eid, "out of memory");
return -1;
}
/*
blergh, C certainly makes this hard!
usage:
str = sprintf("i=%d s=%7s", 7, "foo");
*/
static int ejs_sprintf(MprVarHandle eid, int argc, struct MprVar **argv)
{
const char *format;
const char *p;
char *ret;
int a = 1;
char *(*_asprintf_append)(char *, const char *, ...);
TALLOC_CTX *tmp_ctx;
if (argc < 1 || argv[0]->type != MPR_TYPE_STRING) {
ejsSetErrorMsg(eid, "sprintf invalid arguments");
return -1;
}
format = mprToString(argv[0]);
tmp_ctx = talloc_new(mprMemCtx());
ret = talloc_strdup(tmp_ctx, "");
/* avoid all the format string warnings */
_asprintf_append = talloc_asprintf_append;
/*
hackity hack ...
*/
while ((p = strchr(format, '%'))) {
char *fmt2;
int len, len_count=0;
char *tstr;
ret = talloc_asprintf_append(ret, "%*.*s",
(int)(p-format), (int)(p-format),
format);
if (ret == NULL) goto failed;
format += (int)(p-format);
len = strcspn(p+1, "dxuiofgGpXeEFcs%") + 1;
fmt2 = talloc_strndup(tmp_ctx, p, len+1);
if (fmt2 == NULL) goto failed;
len_count = count_chars(fmt2, '*');
/* find the type string */
tstr = &fmt2[len];
while (tstr > fmt2 && isalpha(tstr[-1])) {
tstr--;
}
if (strcmp(tstr, "%") == 0) {
ret = talloc_asprintf_append(ret, "%%");
if (ret == NULL) {
goto failed;
}
format += len+1;
continue;
}
if (len_count > 2 ||
argc < a + len_count + 1) {
ejsSetErrorMsg(eid, "sprintf: not enough arguments for format");
goto failed;
}
#define FMT_ARG(fn, type) do { \
switch (len_count) { \
case 0: \
ret = _asprintf_append(ret, fmt2, \
(type)fn(argv[a])); \
break; \
case 1: \
ret = _asprintf_append(ret, fmt2, \
(int)mprVarToNumber(argv[a]), \
(type)fn(argv[a+1])); \
break; \
case 2: \
ret = _asprintf_append(ret, fmt2, \
(int)mprVarToNumber(argv[a]), \
(int)mprVarToNumber(argv[a+1]), \
(type)fn(argv[a+2])); \
break; \
} \
a += len_count + 1; \
if (ret == NULL) { \
goto failed; \
} \
} while (0)
if (strcmp(tstr, "s")==0) FMT_ARG(mprToString, const char *);
else if (strcmp(tstr, "c")==0) FMT_ARG(*mprToString, char);
else if (strcmp(tstr, "d")==0) FMT_ARG(mprVarToNumber, int);
else if (strcmp(tstr, "ld")==0) FMT_ARG(mprVarToNumber, long);
else if (strcmp(tstr, "lld")==0) FMT_ARG(mprVarToNumber, long long);
else if (strcmp(tstr, "x")==0) FMT_ARG(mprVarToNumber, int);
else if (strcmp(tstr, "lx")==0) FMT_ARG(mprVarToNumber, long);
else if (strcmp(tstr, "llx")==0) FMT_ARG(mprVarToNumber, long long);
else if (strcmp(tstr, "X")==0) FMT_ARG(mprVarToNumber, int);
else if (strcmp(tstr, "lX")==0) FMT_ARG(mprVarToNumber, long);
else if (strcmp(tstr, "llX")==0) FMT_ARG(mprVarToNumber, long long);
else if (strcmp(tstr, "u")==0) FMT_ARG(mprVarToNumber, int);
else if (strcmp(tstr, "lu")==0) FMT_ARG(mprVarToNumber, long);
else if (strcmp(tstr, "llu")==0) FMT_ARG(mprVarToNumber, long long);
else if (strcmp(tstr, "i")==0) FMT_ARG(mprVarToNumber, int);
else if (strcmp(tstr, "li")==0) FMT_ARG(mprVarToNumber, long);
else if (strcmp(tstr, "lli")==0) FMT_ARG(mprVarToNumber, long long);
else if (strcmp(tstr, "o")==0) FMT_ARG(mprVarToNumber, int);
else if (strcmp(tstr, "lo")==0) FMT_ARG(mprVarToNumber, long);
else if (strcmp(tstr, "llo")==0) FMT_ARG(mprVarToNumber, long long);
else if (strcmp(tstr, "f")==0) FMT_ARG(mprVarToFloat, double);
else if (strcmp(tstr, "lf")==0) FMT_ARG(mprVarToFloat, double);
else if (strcmp(tstr, "g")==0) FMT_ARG(mprVarToFloat, double);
else if (strcmp(tstr, "lg")==0) FMT_ARG(mprVarToFloat, double);
else if (strcmp(tstr, "e")==0) FMT_ARG(mprVarToFloat, double);
else if (strcmp(tstr, "le")==0) FMT_ARG(mprVarToFloat, double);
else if (strcmp(tstr, "E")==0) FMT_ARG(mprVarToFloat, double);
else if (strcmp(tstr, "lE")==0) FMT_ARG(mprVarToFloat, double);
else if (strcmp(tstr, "F")==0) FMT_ARG(mprVarToFloat, double);
else if (strcmp(tstr, "lF")==0) FMT_ARG(mprVarToFloat, double);
else {
ejsSetErrorMsg(eid, "sprintf: unknown format string '%s'", fmt2);
goto failed;
}
format += len+1;
}
ret = talloc_asprintf_append(ret, "%s", format);
mpr_Return(eid, mprString(ret));
talloc_free(tmp_ctx);
return 0;
failed:
talloc_free(tmp_ctx);
return -1;
}
/*
used to build your own print function
str = vsprintf(args);
*/
static int ejs_vsprintf(MprVarHandle eid, int argc, struct MprVar **argv)
{
struct MprVar **args, *len, *v;
int i, ret, length;
if (argc != 1 || argv[0]->type != MPR_TYPE_OBJECT) {
ejsSetErrorMsg(eid, "vsprintf invalid arguments");
return -1;
}
v = argv[0];
len = mprGetProperty(v, "length", NULL);
if (len == NULL) {
ejsSetErrorMsg(eid, "vsprintf takes an array");
return -1;
}
length = mprToInt(len);
args = talloc_array(mprMemCtx(), struct MprVar *, length);
if (args == NULL) {
return -1;
}
for (i=0;i<length;i++) {
char idx[16];
mprItoa(i, idx, sizeof(idx));
args[i] = mprGetProperty(v, idx, NULL);
}
ret = ejs_sprintf(eid, length, args);
talloc_free(args);
return ret;
}
/*
setup C functions that be called from ejs
*/
void smb_setup_ejs_string(void)
{
ejsDefineStringCFunction(-1, "strlen", ejs_strlen, NULL, MPR_VAR_SCRIPT_HANDLE);
ejsDefineStringCFunction(-1, "strlower", ejs_strlower, NULL, MPR_VAR_SCRIPT_HANDLE);
ejsDefineStringCFunction(-1, "strupper", ejs_strupper, NULL, MPR_VAR_SCRIPT_HANDLE);
ejsDefineStringCFunction(-1, "split", ejs_split, NULL, MPR_VAR_SCRIPT_HANDLE);
ejsDefineCFunction(-1, "join", ejs_join, NULL, MPR_VAR_SCRIPT_HANDLE);
ejsDefineCFunction(-1, "sprintf", ejs_sprintf, NULL, MPR_VAR_SCRIPT_HANDLE);
ejsDefineCFunction(-1, "vsprintf", ejs_vsprintf, NULL, MPR_VAR_SCRIPT_HANDLE);
}
|
