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don't crash when asked to read from a file that doesn't exist (issue #6786)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@14462 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Russell Bryant
2006-03-23 20:13:48 +00:00
parent b0f4874196
commit 9884c9637a
1 changed files with 9 additions and 8 deletions
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17
apps/app_readfile.c
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@@ -95,15 +95,16 @@ static int readfile_exec(struct ast_channel *chan, void *data)
}
}
returnvar = ast_read_textfile(file);
if(len > 0){
if(len < strlen(returnvar))
returnvar[len]='\0';
else
ast_log(LOG_WARNING,"%s is longer than %d, and %d \n", file, len, (int)strlen(returnvar));
if ((returnvar = ast_read_textfile(file))) {
if (len > 0) {
if (len < strlen(returnvar))
returnvar[len]='\0';
else
ast_log(LOG_WARNING, "%s is longer than %d, and %d \n", file, len, (int)strlen(returnvar));
}
pbx_builtin_setvar_helper(chan, varname, returnvar);
free(returnvar);
}
pbx_builtin_setvar_helper(chan, varname, returnvar);
free(returnvar);
LOCAL_USER_REMOVE(u);
return res;
}