Ticket #49235: patch-getline.diff-2

--- src/polkitagent/polkitagenthelperprivate.c-orig     2015-06-19 22:31:02.000000000 +0200
+++ src/polkitagent/polkitagenthelperprivate.c  2015-10-12 14:59:13.000000000 +0200
@@ -45,6 +45,78 @@
 }
 #endif
 
+// getline() is only available on OS X Lion and newer
+
+#ifdef __APPLE__
+#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1050 || __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1050
+#include <Availability.h>
+#endif
+#if __MAC_OS_X_VERSION_MIN_REQUIRED <= 1060
+
+static const int line_size = 128;
+
+static ssize_t
+getdelim (char **lineptr, size_t *n, int delim, FILE *stream);
+
+static ssize_t
+getline (char **lineptr, size_t *n, FILE *stream);
+
+static ssize_t
+getdelim (char **lineptr, size_t *n, int delim, FILE *stream)
+{
+  int indx = 0;
+  int c;
+
+  /* Sanity checks.  */
+  if (lineptr == NULL || n == NULL || stream == NULL)
+    return -1;
+
+  /* Allocate the line the first time.  */
+  if (*lineptr == NULL)
+    {
+      *lineptr = malloc (line_size);
+      if (*lineptr == NULL)
+        return -1;
+      *n = line_size;
+    }
+
+  /* Clear the line.  */
+  memset (*lineptr, '\0', *n);
+
+  while ((c = getc (stream)) != EOF)
+    {
+      /* Check if more memory is needed.  */
+      if (indx >= *n)
+        {
+          *lineptr = realloc (*lineptr, *n + line_size);
+          if (*lineptr == NULL)
+            {
+              return -1;
+            }
+          /* Clear the rest of the line.  */
+          memset(*lineptr + *n, '\0', line_size);
+          *n += line_size;
+        }
+
+      /* Push the result in the line.  */
+      (*lineptr)[indx++] = c;
+
+      /* Bail out.  */
+      if (c == delim)
+        {
+          break;
+        }
+    }
+  return (c == EOF) ? -1 : indx;
+}
+
+static ssize_t
+getline (char **lineptr, size_t *n, FILE *stream)
+{
+  return getdelim (lineptr, n, '\n', stream);
+}
+#endif
+#endif
 
 char *
 read_cookie (int argc, char **argv)