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-rw-r--r--ext/libelf/elf_phnum.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/ext/libelf/elf_phnum.c b/ext/libelf/elf_phnum.c
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+++ b/ext/libelf/elf_phnum.c
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+/*-
+ * Copyright (c) 2006 Joseph Koshy
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+
+#include <ar.h>
+#include "libelf.h"
+
+#include "_libelf.h"
+
+int
+elf_getphnum(Elf *e, size_t *phnum)
+{
+ void *eh;
+ int ec;
+
+ if (e == NULL || e->e_kind != ELF_K_ELF ||
+ ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
+ LIBELF_SET_ERROR(ARGUMENT, 0);
+ return (0);
+ }
+
+ if ((eh = _libelf_ehdr(e, ec, 0)) == NULL)
+ return (0);
+
+ *phnum = e->e_u.e_elf.e_nphdr;
+
+ return (1);
+}