Quectel EG25-G Delta Radio Firmware Upgrade support - libmts-io implementation

Delta Radio Firmware Upgrade implementation uses file management commands for Quectel radios.

Radio behaviour for +QFLST output on EG25 radios is different that on EG95:

- EG95 radios list all files on UFS _with_ "UFS:" prefix;
- EG25 radios list all files on UFS _without_ "UFS:" prefix.

This commit allows to handle both formats of +QFLST output to check file presense.

1 files changed, 8 insertions, 2 deletions

diff --git a/src/MTS_IO_QuectelRadio.cpp b/src/MTS_IO_QuectelRadio.cpp
index 8656973..601674b 100644
--- a/src/MTS_IO_QuectelRadio.cpp
+++ b/src/MTS_IO_QuectelRadio.cpp
@@ -968,9 +968,15 @@ ICellularRadio::CODE QuectelRadio::checkFile(bool& bIsFilePresent, const std::st
         return FAILURE;
     }
 
-    const std::string sExpected = "+QFLST: \"UFS:" + sTargetFilename + "\"";
-    bIsFilePresent = (sResult.find(sExpected) != std::string::npos);
+    // UFS files in +QFLST output may or may not have "UFS:" prefix
+    const std::string sExpectedFull = "+QFLST: \"UFS:" + sTargetFilename + "\"";
+    const std::string sExpectedAlt = "+QFLST: \"" + sTargetFilename + "\"";
 
+    // File is present if file name found with or without "UFS:" prefix in QFLST output
+    bool bIsPresentFull = (sResult.find(sExpectedFull) != std::string::npos);
+    bool bIsPresentAlt = (sResult.find(sExpectedAlt) != std::string::npos);
+
+    bIsFilePresent = (bIsPresentFull || bIsPresentAlt);
     return SUCCESS;
 }