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00026 #include <stdio.h>
00027 #include <stdlib.h>
00028 #include <unistd.h>
00029 #include <string.h>
00030
00031 #include "asterisk.h"
00032
00033 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 7221 $")
00034
00035 #include "asterisk/file.h"
00036 #include "asterisk/logger.h"
00037 #include "asterisk/options.h"
00038 #include "asterisk/channel.h"
00039 #include "asterisk/pbx.h"
00040 #include "asterisk/app.h"
00041 #include "asterisk/module.h"
00042
00043 static char *tdesc = "Stores output of file into a variable";
00044
00045 static char *app_readfile = "ReadFile";
00046
00047 static char *readfile_synopsis = "ReadFile(varname=file,length)";
00048
00049 static char *readfile_descrip =
00050 "ReadFile(varname=file,length)\n"
00051 " Varname - Result stored here.\n"
00052 " File - The name of the file to read.\n"
00053 " Length - Maximum number of characters to capture.\n";
00054
00055 STANDARD_LOCAL_USER;
00056
00057 LOCAL_USER_DECL;
00058
00059
00060 static int readfile_exec(struct ast_channel *chan, void *data)
00061 {
00062 int res=0;
00063 struct localuser *u;
00064 char *s, *varname=NULL, *file=NULL, *length=NULL, *returnvar=NULL;
00065 int len=0;
00066
00067 if (ast_strlen_zero(data)) {
00068 ast_log(LOG_WARNING, "ReadFile require an argument!\n");
00069 return -1;
00070 }
00071
00072 LOCAL_USER_ADD(u);
00073
00074 s = ast_strdupa(data);
00075 if (!s) {
00076 ast_log(LOG_ERROR, "Out of memory\n");
00077 LOCAL_USER_REMOVE(u);
00078 return -1;
00079 }
00080
00081 varname = strsep(&s, "=");
00082 file = strsep(&s, "|");
00083 length = s;
00084
00085 if (!varname || !file) {
00086 ast_log(LOG_ERROR, "No file or variable specified!\n");
00087 LOCAL_USER_REMOVE(u);
00088 return -1;
00089 }
00090
00091 if (length) {
00092 if ((sscanf(length, "%d", &len) != 1) || (len < 0)) {
00093 ast_log(LOG_WARNING, "%s is not a positive number, defaulting length to max\n", length);
00094 len = 0;
00095 }
00096 }
00097
00098 returnvar = ast_read_textfile(file);
00099 if(len > 0){
00100 if(len < strlen(returnvar))
00101 returnvar[len]='\0';
00102 else
00103 ast_log(LOG_WARNING,"%s is longer than %d, and %d \n", file, len, (int)strlen(returnvar));
00104 }
00105 pbx_builtin_setvar_helper(chan, varname, returnvar);
00106 free(returnvar);
00107 LOCAL_USER_REMOVE(u);
00108 return res;
00109 }
00110
00111
00112 int unload_module(void)
00113 {
00114 int res;
00115
00116 res = ast_unregister_application(app_readfile);
00117
00118 STANDARD_HANGUP_LOCALUSERS;
00119
00120 return res;
00121 }
00122
00123 int load_module(void)
00124 {
00125 return ast_register_application(app_readfile, readfile_exec, readfile_synopsis, readfile_descrip);
00126 }
00127
00128 char *description(void)
00129 {
00130 return tdesc;
00131 }
00132
00133 int usecount(void)
00134 {
00135 int res;
00136 STANDARD_USECOUNT(res);
00137 return res;
00138 }
00139
00140 char *key()
00141 {
00142 return ASTERISK_GPL_KEY;
00143 }