add get from io stream

Author: dreamer-coding

code/logic/fossil/io/input.h

@@ -15,11 +15,22 @@
 #define FOSSIL_IO_INPUT_H
 
 #include <stddef.h>
+#include <stdio.h>
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+/**
+ * Reads a line from the input stream and stores it into the buffer pointed to by 'buf'.
+ * 
+ * @param buf           Pointer to the buffer where the line will be stored.
+ * @param size          Maximum number of characters to be read, including the null terminator.
+ * @param input_stream  Pointer to the input stream to read from.
+ * @return              On success, the function returns 'buf'. If the end-of-file is reached or an error occurs, it returns NULL.
+ */
+char *fossil_io_gets_from_stream(char *buf, size_t size, FILE *input_stream);
+
 /**
  * Reads a line from the input stream and stores it into the buffer pointed to by 'buf'.
  * 

code/logic/input.c

@@ -15,17 +15,16 @@
 #include "fossil/io/soap.h"
 #include "fossil/io/output.h"
 
-#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
-// Function to get a sanitized line of input
-char *fossil_io_gets(char *buf, size_t size) {
-    if (buf == NULL || size == 0) {
+// Function to get a sanitized line of input from a provided stream (or stdin by default)
+char *fossil_io_gets_from_stream(char *buf, size_t size, FILE *input_stream) {
+    if (buf == NULL || size == 0 || input_stream == NULL) {
         return NULL;
     }
 
-    if (fgets(buf, size, stdin) == NULL) {
+    if (fgets(buf, size, input_stream) == NULL) {
         return NULL;
     }
 
@@ -40,6 +39,11 @@ char *fossil_io_gets(char *buf, size_t size) {
     return buf;
 }
 
+// Default version that uses stdin
+char *fossil_io_gets(char *buf, size_t size) {
+    return fossil_io_gets_from_stream(buf, size, stdin);
+}
+
 // Function to get a sanitized line of input with a dialog prompt
 char *fossil_io_gets_with_dialog(char *buf, size_t size, const char *dialog)
 {