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 | __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) |
| AST_THREADSTORAGE_CUSTOM_SCOPE (result_buf, NULL, ast_free_ptr, static) | |
| static int | load_module (void) |
| static int | unload_module (void) |
Variables | |
| static struct ast_module_info __MODULE_INFO_SECTION | __mod_info = { __MODULE_INFO_GLOBALS .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "SPRINTF dialplan function" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, } |
| static struct ast_module_info * | ast_module_info = &__mod_info |
| 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 __reg_module | ( | void | ) | [static] |
Definition at line 230 of file func_sprintf.c.
| static void __unreg_module | ( | void | ) | [static] |
Definition at line 230 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 63 of file func_sprintf.c.
References AST_APP_ARG, ast_copy_string(), AST_DECLARE_APP_ARGS, ast_log(), AST_STANDARD_APP_ARGS, buf, 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;
}
| AST_THREADSTORAGE_CUSTOM_SCOPE | ( | result_buf | , |
| NULL | , | ||
| ast_free_ptr | , | ||
| static | |||
| ) |
| static int load_module | ( | void | ) | [static] |
Definition at line 221 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 212 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 __MODULE_INFO_SECTION __mod_info = { __MODULE_INFO_GLOBALS .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "SPRINTF dialplan function" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, } [static] |
Definition at line 230 of file func_sprintf.c.
struct ast_module_info* ast_module_info = &__mod_info [static] |
Definition at line 230 of file func_sprintf.c.
struct ast_custom_function sprintf_function [static] |
Initial value:
{
.name = "SPRINTF",
.read = acf_sprintf,
}
Definition at line 207 of file func_sprintf.c.
