1 files changed, 58 insertions, 0 deletions
diff --git a/src/common/windows/getline.c b/src/common/windows/getline.c
new file mode 100644
index 0000000..3d43d55
--- /dev/null
+++ b/src/common/windows/getline.c
@@ -0,0 +1,58 @@
+#include "getline.h"
+
+#include <stdlib.h>
+#include <errno.h>
+
+ssize_t getline(char** lineptr, size_t* n, FILE* stream) {
+    ssize_t pos = -1;
+    int c;
+
+    if (lineptr == NULL || stream == NULL || n == NULL) {
+        errno = EINVAL;
+        return -1;
+    }
+
+    _lock_file(stream);
+
+    c = _getc_nolock(stream);
+    if (c == EOF) {
+        goto exit;
+    }
+
+    if (*lineptr == NULL) {
+        *lineptr = malloc(128);
+        if (*lineptr == NULL) {
+            goto exit;
+        }
+        *n = 128;
+    }
+
+    pos = 0;
+    while (c != EOF) {
+        if ((size_t) (pos + 1) >= *n) {
+            size_t new_size = *n + (*n >> 2);
+            if (new_size < 128) {
+                new_size = 128;
+            }
+            char* new_ptr = realloc(*lineptr, new_size);
+            if (new_ptr == NULL) {
+                pos = -1;
+                goto exit;
+            }
+            *n = new_size;
+            *lineptr = new_ptr;
+        }
+
+        ((char*) (*lineptr))[pos++] = (char) c;
+        if (c == '\n') {
+            break;
+        }
+        c = _getc_nolock(stream);
+    }
+
+    (*lineptr)[pos] = '\0';
+
+exit:
+    _unlock_file(stream);
+    return pos;
+}