private static IEnumerable <string> GetSignatureFileError(string signatureFilePath)
{
if (string.IsNullOrEmpty(signatureFilePath))
{
yield return("Please specify a signature file.");
}
else
{
bool?validMagicBytes = FileHandling.IsSignatureFile(signatureFilePath);
if (validMagicBytes == null)
{
yield return("Unable to access signature file.");
}
if (validMagicBytes == false)
{
yield return(_invalidSignatureFile);
}
}
}
private static IEnumerable <string> GetSignatureFileError(string signatureFilePath, string[] filePaths)
{
if (string.IsNullOrEmpty(signatureFilePath) || filePaths.Length == 0)
{
yield return("Please specify a signature file and file to verify.");
}
else
{
bool?validMagicBytes = FileHandling.IsSignatureFile(signatureFilePath);
if (validMagicBytes == null)
{
yield return("Unable to access signature file.");
}
if (validMagicBytes == false)
{
yield return("Please specify a valid signature file.");
}
}
if (filePaths.Length > 1)
{
yield return("Please specify one file to verify.");
}
}