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Add the FILE() dialplan function and deprecate ReadFile.

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@89114 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Tilghman Lesher
2007-11-08 17:32:15 +00:00
parent 86e5e39198
commit 3a70afbc3e
2 changed files with 65 additions and 0 deletions
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4
apps/app_readfile.c
View File

@@ -58,6 +58,7 @@ static int readfile_exec(struct ast_channel *chan, void *data)
int res=0;
char *s, *varname=NULL, *file=NULL, *length=NULL, *returnvar=NULL;
int len=0;
static int deprecation_warning = 0;
if (ast_strlen_zero(data)) {
ast_log(LOG_WARNING, "ReadFile require an argument!\n");
@@ -70,6 +71,9 @@ static int readfile_exec(struct ast_channel *chan, void *data)
file = strsep(&s, ",");
length = s;
if (deprecation_warning++ % 10 == 0)
ast_log(LOG_WARNING, "ReadFile has been deprecated in favor of Set(%s=${FILE(%s,0,%s)})\n", varname, file, length);
if (!varname || !file) {
ast_log(LOG_ERROR, "No file or variable specified!\n");
return -1;

61
funcs/func_env.c
View File

@@ -111,6 +111,49 @@ static int stat_read(struct ast_channel *chan, const char *cmd, char *data,
return 0;
}
static int file_read(struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len)
{
AST_DECLARE_APP_ARGS(args,
AST_APP_ARG(filename);
AST_APP_ARG(offset);
AST_APP_ARG(length);
);
int offset = 0, length;
char *contents;
AST_STANDARD_APP_ARGS(args, data);
if (args.argc > 1)
offset = atoi(args.offset);
if (args.argc > 2) {
if ((length = atoi(args.length)) < 1) {
ast_log(LOG_WARNING, "Invalid length '%s'. Returning the max (%d)\n", args.length, len);
length = len;
} else if (length > len) {
ast_log(LOG_WARNING, "Length %d is greater than the max (%d). Truncating output.\n", length, len);
length = len;
}
} else
length = len;
if (!(contents = ast_read_textfile(args.filename)))
return -1;
if (offset >= 0)
ast_copy_string(buf, &contents[offset], length);
else {
size_t tmp = strlen(contents);
if (offset * -1 > tmp) {
ast_log(LOG_WARNING, "Offset is larger than the file size.\n");
offset = tmp * -1;
}
ast_copy_string(buf, &contents[tmp + offset], length);
}
ast_free(contents);
return 0;
}
static struct ast_custom_function env_function = {
.name = "ENV",
.synopsis = "Gets or sets the environment variable specified",
@@ -136,12 +179,29 @@ static struct ast_custom_function stat_function = {
" M - Returns the epoch at which the file was last modified\n",
};
static struct ast_custom_function file_function = {
.name = "FILE",
.synopsis = "Obtains the contents of a file",
.syntax = "FILE(<filename>,<offset>,<length>)",
.read = file_read,
/*
* Some enterprising programmer could probably add write functionality
* to FILE(), although I'm not sure how useful it would be. Hence why
* it's called FILE and not READFILE (like the app was).
*/
.desc =
"<offset> may be specified as any number. If negative, <offset> specifies\n"
" the number of bytes back from the end of the file.\n"
"<length>, if specified, will limit the length of the data read to that size.\n",
};
static int unload_module(void)
{
int res = 0;
res |= ast_custom_function_unregister(&env_function);
res |= ast_custom_function_unregister(&stat_function);
res |= ast_custom_function_unregister(&file_function);
return res;
}
@@ -152,6 +212,7 @@ static int load_module(void)
res |= ast_custom_function_register(&env_function);
res |= ast_custom_function_register(&stat_function);
res |= ast_custom_function_register(&file_function);
return res;
}