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-rw-r--r--libdw/dwarf_getstring.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/libdw/dwarf_getstring.c b/libdw/dwarf_getstring.c
new file mode 100644
index 00000000..e4abe8cb
--- /dev/null
+++ b/libdw/dwarf_getstring.c
@@ -0,0 +1,51 @@
+/* Get string.
+ Copyright (C) 2004 Red Hat, Inc.
+ Written by Ulrich Drepper <drepper@redhat.com>, 2004.
+
+ 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 <string.h>
+#include "libdwP.h"
+
+
+const char *
+dwarf_getstring (dbg, offset, lenp)
+ Dwarf *dbg;
+ Dwarf_Off offset;
+ size_t *lenp;
+{
+ if (dbg == NULL)
+ return NULL;
+
+ if (dbg->sectiondata[IDX_debug_str] == NULL
+ || offset >= dbg->sectiondata[IDX_debug_str]->d_size)
+ {
+ no_string:
+ __libdw_seterrno (DWARF_E_NO_STRING);
+ return NULL;
+ }
+
+ const char *result = ((const char *) dbg->sectiondata[IDX_debug_str]->d_buf
+ + offset);
+ const char *endp = memchr (result, '\0',
+ dbg->sectiondata[IDX_debug_str]->d_size - offset);
+ if (endp == NULL)
+ goto no_string;
+
+ if (lenp != NULL)
+ *lenp = endp - result;
+
+ return result;
+}