func_sprintf.c File Reference
String manipulation dialplan functions. More...
#include "asterisk.h"#include <ctype.h>#include "asterisk/module.h"#include "asterisk/channel.h"#include "asterisk/pbx.h"#include "asterisk/utils.h"#include "asterisk/app.h"
Include dependency graph for func_sprintf.c:
Go to the source code of this file.
Defines | |
| #define | SPRINTF_CONVERSION 4 |
| #define | SPRINTF_FLAG 0 |
| #define | SPRINTF_LENGTH 3 |
| #define | SPRINTF_PRECISION 2 |
| #define | SPRINTF_WIDTH 1 |
Functions | |
| static void | __init_result_buf (void) |
| static void | __reg_module (void) |
| static void | __unreg_module (void) |
| static int | acf_sprintf (struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len) |
| static int | load_module (void) |
| static int | unload_module (void) |
Variables | |
| static struct ast_module_info | __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "SPRINTF dialplan function" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_DEFAULT, } |
| static struct ast_module_info * | ast_module_info = &__mod_info |
| static struct ast_threadstorage | result_buf = { .once = PTHREAD_ONCE_INIT , .key_init = __init_result_buf , .custom_init = NULL , } |
| static struct ast_custom_function | sprintf_function |
Detailed Description
String manipulation dialplan functions.
Definition in file func_sprintf.c.
Define Documentation
| #define SPRINTF_CONVERSION 4 |
Referenced by acf_sprintf().
| #define SPRINTF_FLAG 0 |
Referenced by acf_sprintf().
| #define SPRINTF_LENGTH 3 |
Referenced by acf_sprintf().
| #define SPRINTF_PRECISION 2 |
Referenced by acf_sprintf().
| #define SPRINTF_WIDTH 1 |
Referenced by acf_sprintf().
Function Documentation
| static void __init_result_buf | ( | void | ) | [static] |
Definition at line 44 of file func_sprintf.c.
{
| static void __reg_module | ( | void | ) | [static] |
Definition at line 234 of file func_sprintf.c.
| static void __unreg_module | ( | void | ) | [static] |
Definition at line 234 of file func_sprintf.c.
| static int acf_sprintf | ( | struct ast_channel * | chan, |
| const char * | cmd, | ||
| char * | data, | ||
| char * | buf, | ||
| size_t | len | ||
| ) | [static] |
Definition at line 67 of file func_sprintf.c.
References AST_APP_ARG, ast_copy_string(), AST_DECLARE_APP_ARGS, ast_log(), AST_STANDARD_APP_ARGS, format, LOG_ERROR, SPRINTF_CONVERSION, SPRINTF_FLAG, SPRINTF_LENGTH, SPRINTF_PRECISION, SPRINTF_WIDTH, and var.
{
#define SPRINTF_FLAG 0
#define SPRINTF_WIDTH 1
#define SPRINTF_PRECISION 2
#define SPRINTF_LENGTH 3
#define SPRINTF_CONVERSION 4
int i, state = -1, argcount = 0;
char *formatstart = NULL, *bufptr = buf;
char formatbuf[256] = "";
int tmpi;
double tmpd;
AST_DECLARE_APP_ARGS(arg,
AST_APP_ARG(format);
AST_APP_ARG(var)[100];
);
AST_STANDARD_APP_ARGS(arg, data);
/* Scan the format, converting each argument into the requisite format type. */
for (i = 0; arg.format[i]; i++) {
switch (state) {
case SPRINTF_FLAG:
if (strchr("#0- +'I", arg.format[i]))
break;
state = SPRINTF_WIDTH;
case SPRINTF_WIDTH:
if (arg.format[i] >= '0' && arg.format[i] <= '9')
break;
/* Next character must be a period to go into a precision */
if (arg.format[i] == '.') {
state = SPRINTF_PRECISION;
} else {
state = SPRINTF_LENGTH;
i--;
}
break;
case SPRINTF_PRECISION:
if (arg.format[i] >= '0' && arg.format[i] <= '9')
break;
state = SPRINTF_LENGTH;
case SPRINTF_LENGTH:
if (strchr("hl", arg.format[i])) {
if (arg.format[i + 1] == arg.format[i])
i++;
state = SPRINTF_CONVERSION;
break;
} else if (strchr("Lqjzt", arg.format[i])) {
state = SPRINTF_CONVERSION;
break;
}
state = SPRINTF_CONVERSION;
case SPRINTF_CONVERSION:
if (strchr("diouxXc", arg.format[i])) {
/* Integer */
/* Isolate this format alone */
ast_copy_string(formatbuf, formatstart, sizeof(formatbuf));
formatbuf[&arg.format[i] - formatstart + 1] = '\0';
/* Convert the argument into the required type */
if (arg.var[argcount]) {
if (sscanf(arg.var[argcount++], "%30d", &tmpi) != 1) {
ast_log(LOG_ERROR, "Argument '%s' is not an integer number for format '%s'\n", arg.var[argcount - 1], formatbuf);
goto sprintf_fail;
}
} else {
ast_log(LOG_ERROR, "SPRINTF() has more format specifiers than arguments!\n");
goto sprintf_fail;
}
/* Format the argument */
snprintf(bufptr, buf + len - bufptr, formatbuf, tmpi);
/* Update the position of the next parameter to print */
bufptr = strchr(buf, '\0');
} else if (strchr("eEfFgGaA", arg.format[i])) {
/* Double */
/* Isolate this format alone */
ast_copy_string(formatbuf, formatstart, sizeof(formatbuf));
formatbuf[&arg.format[i] - formatstart + 1] = '\0';
/* Convert the argument into the required type */
if (arg.var[argcount]) {
if (sscanf(arg.var[argcount++], "%30lf", &tmpd) != 1) {
ast_log(LOG_ERROR, "Argument '%s' is not a floating point number for format '%s'\n", arg.var[argcount - 1], formatbuf);
goto sprintf_fail;
}
} else {
ast_log(LOG_ERROR, "SPRINTF() has more format specifiers than arguments!\n");
goto sprintf_fail;
}
/* Format the argument */
snprintf(bufptr, buf + len - bufptr, formatbuf, tmpd);
/* Update the position of the next parameter to print */
bufptr = strchr(buf, '\0');
} else if (arg.format[i] == 's') {
/* String */
/* Isolate this format alone */
ast_copy_string(formatbuf, formatstart, sizeof(formatbuf));
formatbuf[&arg.format[i] - formatstart + 1] = '\0';
/* Format the argument */
snprintf(bufptr, buf + len - bufptr, formatbuf, arg.var[argcount++]);
/* Update the position of the next parameter to print */
bufptr = strchr(buf, '\0');
} else if (arg.format[i] == '%') {
/* Literal data to copy */
*bufptr++ = arg.format[i];
} else {
/* Not supported */
/* Isolate this format alone */
ast_copy_string(formatbuf, formatstart, sizeof(formatbuf));
formatbuf[&arg.format[i] - formatstart + 1] = '\0';
ast_log(LOG_ERROR, "Format type not supported: '%s' with argument '%s'\n", formatbuf, arg.var[argcount++]);
goto sprintf_fail;
}
state = -1;
break;
default:
if (arg.format[i] == '%') {
state = SPRINTF_FLAG;
formatstart = &arg.format[i];
break;
} else {
/* Literal data to copy */
*bufptr++ = arg.format[i];
}
}
}
*bufptr = '\0';
return 0;
sprintf_fail:
return -1;
}
| static int load_module | ( | void | ) | [static] |
Definition at line 225 of file func_sprintf.c.
References ast_custom_function_register.
{
int res = 0;
res |= ast_custom_function_register(&sprintf_function);
return res;
}
| static int unload_module | ( | void | ) | [static] |
Definition at line 216 of file func_sprintf.c.
References ast_custom_function_unregister().
{
int res = 0;
res |= ast_custom_function_unregister(&sprintf_function);
return res;
}
Variable Documentation
struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "SPRINTF dialplan function" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_DEFAULT, } [static] |
Definition at line 234 of file func_sprintf.c.
struct ast_module_info* ast_module_info = &__mod_info [static] |
Definition at line 234 of file func_sprintf.c.
struct ast_threadstorage result_buf = { .once = PTHREAD_ONCE_INIT , .key_init = __init_result_buf , .custom_init = NULL , } [static] |
Definition at line 44 of file func_sprintf.c.
struct ast_custom_function sprintf_function [static] |
Initial value:
{
.name = "SPRINTF",
.read = acf_sprintf,
}
Definition at line 211 of file func_sprintf.c.
