actually writing the server binary from memory to file before linking, sycing, permissions etc

slsDetectorServers/slsDetectorServer/include/common.h

@@ -47,4 +47,6 @@ int verifyChecksumFromFlash(char *mess, char *functionType,
                             char *clientChecksum, char *fname, ssize_t fsize);
 int verifyChecksum(char *mess, char *functionType, char *clientChecksum,
                    MD5_CTX *c, char *msg);
-int setupDetectorServer(char *mess, char *sname);
+int setupDetectorServer(char *mess, char *sname);
+
+int writeBinaryFile(char* mess, char* fname, char* buffer, uint64_t filesize);

slsDetectorServers/slsDetectorServer/src/common.c

@@ -493,4 +493,27 @@ int setupDetectorServer(char *mess, char *sname) {
     }
     LOG(logINFO, ("\tsync\n"));
     return OK;
+}
+
+int writeBinaryFile(char* mess, char* fname, char* buffer, uint64_t filesize) {
+    FILE *fp = fopen(fname, "wb");
+    if (fp == NULL) {
+        sprintf(mess, "Could not copy detector server. (writing to file)\n");
+        LOG(logERROR, (mess));
+        return FAIL;
+    }
+
+    size_t bytesWritten = fwrite(buffer, 1, filesize, fp);
+    if (bytesWritten != (size_t)filesize) {
+        sprintf(mess, "Could not copy detector server. Expected to write %lu bytes, wrote %lu bytes)\n", (long unsigned int)filesize, (long unsigned int)bytesWritten);
+        LOG(logERROR, (mess));
+        return FAIL;
+    }
+    if (fclose(fp) != 0) {
+        sprintf(mess, "Could not copy detector server. (closing file pointer)\n");
+        LOG(logERROR, (mess));
+        return FAIL;        
+    }
+    LOG(logINFO, ("\tWritten server binary to %s (%lu bytes)\n", fname, (long unsigned int)bytesWritten));
+    return OK;
 }

slsDetectorServers/slsDetectorServer/src/slsDetectorServer_funcs.c

@@ -9381,7 +9381,10 @@ void receive_program_via_blackfin(int file_des, enum PROGRAM_INDEX index,
                                    totalsize);
         break;
     case PROGRAM_SERVER:
-        ret = setupDetectorServer(mess, serverName);
+        ret = writeBinaryFile(mess, serverName, src, filesize);
+        if (ret == OK) {
+            ret = setupDetectorServer(mess, serverName);
+        }
         break;
     default:
         modeNotImplemented("Program index", (int)index);
@@ -9454,22 +9457,27 @@ void receive_program_default(int file_des, enum PROGRAM_INDEX index,
         return;
     }
 
-#if defined(GOTTHARD2D) || defined(MYTHEN3D)
     // appropriate functions
     switch (index) {
+#if defined(GOTTHARD2D) || defined(MYTHEN3D)
     case PROGRAM_FPGA:
     case PROGRAM_KERNEL:
         ret = eraseAndWriteToFlash(mess, index, functionType, checksum, src,
                                    filesize);
         break;
+#endif
+#if defined(GOTTHARD2D) || defined(MYTHEN3D) || defined(EIGERD)
     case PROGRAM_SERVER:
-        ret = setupDetectorServer(mess, serverName);
+        ret = writeBinaryFile(mess, serverName, src, filesize);
+        if (ret == OK) {
+            ret = setupDetectorServer(mess, serverName);
+        }
         break;
+#endif
     default:
         modeNotImplemented("Program index", (int)index);
         break;
     }
-#endif
     // send result
     Server_SendResult(file_des, INT32, NULL, 0);