1 files changed, 113 insertions, 0 deletions
diff --git a/libasm/asm_addstrz.c b/libasm/asm_addstrz.c
new file mode 100644
index 00000000..e183b0b5
--- /dev/null
+++ b/libasm/asm_addstrz.c
@@ -0,0 +1,113 @@
+/* Add string to a section.
+   Copyright (C) 2002 Red Hat, Inc.
+   Written by Ulrich Drepper <[email protected]>, 2002.
+
+   This program is Open Source software; you can redistribute it and/or
+   modify it under the terms of the Open Software License version 1.0 as
+   published by the Open Source Initiative.
+
+   You should have received a copy of the Open Software License along
+   with this program; if not, you may obtain a copy of the Open Software
+   License version 1.0 from http://www.opensource.org/licenses/osl.php or
+   by writing the Open Source Initiative c/o Lawrence Rosen, Esq.,
+   3001 King Ranch Road, Ukiah, CA 95482.   */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <libasmP.h>
+
+
+/* Add zero terminated string STR of size LEN to (sub)section ASMSCN.  */
+int
+asm_addstrz (asmscn, str, len)
+     AsmScn_t *asmscn;
+     const char *str;
+     size_t len;
+{
+  if (asmscn == NULL)
+    return -1;
+
+  if (unlikely (asmscn->type == SHT_NOBITS))
+    {
+      if (len == 0)
+	{
+	  if (str[0] != '\0')
+	    {
+	      __libasm_seterrno (ASM_E_TYPE);
+	      return -1;
+	    }
+	}
+      else
+	{
+	  size_t cnt;
+
+	  for (cnt = 0; cnt < len; ++cnt)
+	    if (str[cnt] != '\0')
+	      {
+		__libasm_seterrno (ASM_E_TYPE);
+		return -1;
+	      }
+	}
+    }
+
+  if (len == 0)
+    len = strlen (str) + 1;
+
+  if (unlikely (asmscn->ctx->textp))
+    {
+      bool nextline = true;
+
+      do
+	{
+	  if (nextline)
+	    {
+	      fputs ("\t.string\t\"", asmscn->ctx->out.file);
+	      nextline = false;
+	    }
+
+	  if (*str == '\0')
+	    fputs ("\\000", asmscn->ctx->out.file);
+	  else if (! isascii (*str))
+	    fprintf (asmscn->ctx->out.file, "\\%03o",
+		     (unsigned int) *((unsigned char *)str));
+	  else if (*str == '\\')
+	    fputs ("\\\\", asmscn->ctx->out.file);
+	  else if (*str == '\n')
+	    {
+	      fputs ("\\n\"", asmscn->ctx->out.file);
+	      nextline = true;
+	    }
+	  else
+	    fputc (*str, asmscn->ctx->out.file);
+
+	  ++str;
+	}
+      while (--len > 0 && (len > 1 || *str != '\0'));
+
+      if (! nextline)
+	fputs ("\"\n", asmscn->ctx->out.file);
+    }
+  else
+    {
+      /* Make sure there is enough room.  */
+      if (__libasm_ensure_section_space (asmscn, len) != 0)
+	return -1;
+
+      /* Copy the string.  */
+      memcpy (&asmscn->content->data[asmscn->content->len], str, len);
+
+      /* Adjust the pointer in the data buffer.  */
+      asmscn->content->len += len;
+
+      /* Increment the offset in the (sub)section.  */
+      asmscn->offset += len;
+    }
+
+  return 0;
+}