From bf1217839dbbcb4c344072de1c68763b37e7914a Mon Sep 17 00:00:00 2001
From: Quinten <67589015+QuintenQVD0@users.noreply.github.com>
Date: Sat, 6 May 2023 11:31:33 +0200
Subject: [PATCH] Improve wrapper

---
 .../swords_'n_Magic_and_Stuff/wrapper         | Bin 17736 -> 17784 bytes
 .../swords_'n_Magic_and_Stuff/wrapper.c       |  74 +++++++++++-------
 2 files changed, 45 insertions(+), 29 deletions(-)

diff --git a/game_eggs/steamcmd_servers/swords_'n_Magic_and_Stuff/wrapper b/game_eggs/steamcmd_servers/swords_'n_Magic_and_Stuff/wrapper
index 0bce0609817198ef56276ff48409e3c9a3626013..29909ad1d2164be05bc25be8c4b4a78a59e5e7e9 100644
GIT binary patch
delta 3064
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diff --git a/game_eggs/steamcmd_servers/swords_'n_Magic_and_Stuff/wrapper.c b/game_eggs/steamcmd_servers/swords_'n_Magic_and_Stuff/wrapper.c
index 21d247d3..7c94477b 100644
--- a/game_eggs/steamcmd_servers/swords_'n_Magic_and_Stuff/wrapper.c
+++ b/game_eggs/steamcmd_servers/swords_'n_Magic_and_Stuff/wrapper.c
@@ -8,7 +8,7 @@
 #include <time.h>
 #include <sys/stat.h>
 
-void print_latest_log(const char* log_directory) {
+void print_latest_log(const char* log_directory, off_t* last_pos, off_t* last_size) {
     DIR *dir;
     struct dirent *entry;
     time_t latest_time = 0;
@@ -39,45 +39,58 @@ void print_latest_log(const char* log_directory) {
         return;
     }
 
-    printf("\nLatest log file: %s\n", latest_file);
-
     int fd = open(latest_file, O_RDONLY);
     if (fd < 0) {
         printf("Error opening file %s\n", latest_file);
         return;
     }
 
-    char buffer[4096];
-    int bytes_read;
-    int last_line_printed = 0; // Flag to check whether we have printed the last line
-    do {
-        bytes_read = read(fd, buffer, sizeof(buffer));
-        if (bytes_read > 0) {
-            // Check if the last character is a newline
-            if (buffer[bytes_read - 1] == '\n') {
-                fwrite(buffer, 1, bytes_read, stdout);
-                fflush(stdout);
-            } else {
-                // If the last character is not a newline, add one
-                char* temp = (char*) malloc(bytes_read + 1);
-                memcpy(temp, buffer, bytes_read);
-                temp[bytes_read] = '\n';
-                fwrite(temp, 1, bytes_read + 1, stdout);
-                fflush(stdout);
-                free(temp);
+    // Get the size of the file
+    off_t size = lseek(fd, 0, SEEK_END);
+
+    // Check if the file size has increased since the last read
+    if (size > *last_size) {
+        // Move the file pointer to the beginning of the file
+        lseek(fd, 0, SEEK_SET);
+
+        char buffer[4096];
+        int bytes_read;
+        int last_line_printed = 0; // Flag to check whether we have printed the last line
+        do {
+            bytes_read = read(fd, buffer, sizeof(buffer));
+            if (bytes_read > 0) {
+                // Check if the last character is a newline
+                if (buffer[bytes_read - 1] == '\n') {
+                    fwrite(buffer, 1, bytes_read, stdout);
+                    fflush(stdout);
+                } else {
+                    // If the last character is not a newline, add one
+                    char* temp = (char*) malloc(bytes_read + 1);
+                    memcpy(temp, buffer, bytes_read);
+                    temp[bytes_read] = '\n';
+                    fwrite(temp, 1, bytes_read + 1, stdout);
+                    fflush(stdout);
+                    free(temp);
+                }
+                last_line_printed = (buffer[bytes_read - 1] == '\n');
             }
-            last_line_printed = (buffer[bytes_read - 1] == '\n');
+        } while (bytes_read > 0);
+
+         // If the last line was not printed, print it now
+        if (!last_line_printed) {
+            printf("\n");
         }
-    } while (bytes_read > 0);
 
-    // If the last line was not printed, print it now
-    if (!last_line_printed) {
-        printf("\n");
+    // Remember the last position and size that was read
+        *last_pos = lseek(fd, 0, SEEK_CUR);
+        *last_size = size;
     }
-
     close(fd);
+
 }
 
+
+
 int main(int argc, char** argv) {
     if (argc < 2) {
         printf("Usage: winewrapper wine_path wine_args exe_path exe_args\n");
@@ -104,12 +117,15 @@ int main(int argc, char** argv) {
 
     sleep(30);
 
+    off_t last_pos = 0;
+    off_t last_size = 0;
     char* log_directory = "/home/container/SNM2020/Saved/Logs";
-    print_latest_log(log_directory);
+    print_latest_log(log_directory, &last_pos, &last_size);
+
 
     while (1) {
         sleep(1);
-        print_latest_log(log_directory);
+        print_latest_log(log_directory, &last_pos, &last_size);
     }
 
     kill(pid, SIGTERM);