diff options
Diffstat (limited to 'libdw/dwarf_getstring.c')
-rw-r--r-- | libdw/dwarf_getstring.c | 51 |
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; +} |