1 files changed, 112 insertions, 0 deletions
diff --git a/src/sed/lib/getline.c b/src/sed/lib/getline.c
new file mode 100644
index 0000000..4cb9d45
--- /dev/null
+++ b/src/sed/lib/getline.c
@@ -0,0 +1,112 @@
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#undef _GNU_SOURCE
+
+#include <sys/types.h>
+#define getline stdio_getline   /* bird */
+#include <stdio.h>
+#undef getline 			/* bird */
+
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#else
+# include <string.h>
+#endif /* HAVE_STRINGS_H */
+
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#endif /* HAVE_STDLIB_H */
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+
+#include <limits.h>
+#include <errno.h>
+
+/* Read up to (and including) a '\n' from STREAM into *LINEPTR
+   (and null-terminate it). *LINEPTR is a pointer returned from malloc (or
+   NULL), pointing to *N characters of space.  It is realloc'd as
+   necessary.  Returns the number of characters read (not including the
+   null terminator), or -1 on error or EOF.  */
+
+size_t
+getline (lineptr, n, stream)
+     char **lineptr;
+     size_t *n;
+     FILE *stream;
+{
+  char *line, *p;
+  long size, copy;
+
+  if (lineptr == NULL || n == NULL)
+    {
+      errno = EINVAL;
+      return (size_t) -1;
+    }
+
+  if (ferror (stream))
+    return (size_t) -1;
+
+  /* Make sure we have a line buffer to start with.  */
+  if (*lineptr == NULL || *n < 2) /* !seen and no buf yet need 2 chars.  */
+    {
+#ifndef	MAX_CANON
+#define	MAX_CANON	256
+#endif
+      if (!*lineptr)
+        line = (char *) malloc (MAX_CANON);
+      else
+        line = (char *) realloc (*lineptr, MAX_CANON);
+      if (line == NULL)
+	return (size_t) -1;
+      *lineptr = line;
+      *n = MAX_CANON;
+    }
+
+  line = *lineptr;
+  size = *n;
+
+  copy = size;
+  p = line;
+
+  while (1)
+    {
+      long len;
+      
+      while (--copy > 0)
+	{
+	  register int c = getc (stream);
+	  if (c == EOF)
+	    goto lose;
+	  else if ((*p++ = c) == '\n')
+	    goto win;
+	}
+      
+      /* Need to enlarge the line buffer.  */
+      len = p - line;
+      size *= 2;
+      line = (char *) realloc (line, size);
+      if (line == NULL)
+	goto lose;
+      *lineptr = line;
+      *n = size;
+      p = line + len;
+      copy = size - len;
+    }
+
+ lose:
+  if (p == *lineptr)
+    return (size_t) -1;
+
+  /* Return a partial line since we got an error in the middle.  */
+ win:
+#if defined(WIN32) || defined(_WIN32) || defined(__CYGWIN__) || defined(MSDOS) || defined(__EMX__)
+  if (p - 2 >= *lineptr && p[-2] == '\r')
+    p[-2] = p[-1], --p;
+#endif
+  *p = '\0';
+  return p - *lineptr;
+}