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source_code.c

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+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define MAX_FILE_SIZE 1024
+
+int main(int argc, char *argv[]) {
+  if (argc != 2) {
+    printf("Usage: %s <file>\n", argv[0]);
+    return 1;
+  }
+
+  char *file_name = argv[1];
+  FILE *file = fopen(file_name, "rb");
+  if (file == NULL) {
+    printf("Could not open file %s\n", file_name);
+    return 1;
+  }
+
+  char buffer[MAX_FILE_SIZE];
+  int bytes_read = fread(buffer, 1, MAX_FILE_SIZE, file);
+  fclose(file);
+
+  // Check for known virus signatures in the file.
+  // ...
+
+  if (found_virus) {
+    printf("File %s is infected with a virus!\n", file_name);
+    return 1;
+  } else {
+    printf("File %s is clean.\n", file_name);
+    return 0;
+  }
+}