Imported Upstream version 0.8.13upstream

1 files changed, 118 insertions, 0 deletions

diff --git a/lib/32.newphdr.c b/lib/32.newphdr.c
new file mode 100644
index 0000000..91c63df
--- /dev/null
+++ b/lib/32.newphdr.c
@@ -0,0 +1,118 @@
+/*
+ * 32.newphdr.c - implementation of the elf{32,64}_newphdr(3) functions.
+ * Copyright (C) 1995 - 2006 Michael Riepe
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include <private.h>
+
+#ifndef lint
+static const char rcsid[] = "@(#) $Id: 32.newphdr.c,v 1.16 2008/05/23 08:15:34 michael Exp $";
+#endif /* lint */
+
+static char*
+_elf_newphdr(Elf *elf, size_t count, unsigned cls) {
+    size_t extcount = 0;
+    Elf_Scn *scn = NULL;
+    char *phdr = NULL;
+    size_t size;
+
+    if (!elf) {
+	return NULL;
+    }
+    elf_assert(elf->e_magic == ELF_MAGIC);
+    if (!elf->e_ehdr && !elf->e_readable) {
+	seterr(ERROR_NOEHDR);
+    }
+    else if (elf->e_kind != ELF_K_ELF) {
+	seterr(ERROR_NOTELF);
+    }
+    else if (elf->e_class != cls) {
+	seterr(ERROR_CLASSMISMATCH);
+    }
+    else if (elf->e_ehdr || _elf_cook(elf)) {
+	size = _msize(cls, _elf_version, ELF_T_PHDR);
+	elf_assert(size);
+	if (!(scn = _elf_first_scn(elf))) {
+	    return NULL;
+	}
+	if (count) {
+	    if (!(phdr = (char*)malloc(count * size))) {
+		seterr(ERROR_MEM_PHDR);
+		return NULL;
+	    }
+	    memset(phdr, 0, count * size);
+	}
+	elf_assert(elf->e_ehdr);
+	elf->e_phnum = count;
+	if (count >= PN_XNUM) {
+	    /*
+	     * get NULL section (create it if necessary)
+	     */
+	    extcount = count;
+	    count = PN_XNUM;
+	}
+	if (cls == ELFCLASS32) {
+	    ((Elf32_Ehdr*)elf->e_ehdr)->e_phnum = count;
+	    scn->s_shdr32.sh_info = extcount;
+	}
+#if __LIBELF64
+	else if (cls == ELFCLASS64) {
+	    ((Elf64_Ehdr*)elf->e_ehdr)->e_phnum = count;
+	    scn->s_shdr64.sh_info = extcount;
+	}
+#endif /* __LIBELF64 */
+	else {
+	    seterr(ERROR_UNIMPLEMENTED);
+	    if (phdr) {
+		free(phdr);
+	    }
+	    return NULL;
+	}
+	if (elf->e_phdr) {
+	    free(elf->e_phdr);
+	}
+	elf->e_phdr = phdr;
+	elf->e_phdr_flags |= ELF_F_DIRTY;
+	elf->e_ehdr_flags |= ELF_F_DIRTY;
+	scn->s_scn_flags |= ELF_F_DIRTY;
+	return phdr;
+    }
+    return NULL;
+}
+
+Elf32_Phdr*
+elf32_newphdr(Elf *elf, size_t count) {
+    return (Elf32_Phdr*)_elf_newphdr(elf, count, ELFCLASS32);
+}
+
+#if __LIBELF64
+
+Elf64_Phdr*
+elf64_newphdr(Elf *elf, size_t count) {
+    return (Elf64_Phdr*)_elf_newphdr(elf, count, ELFCLASS64);
+}
+
+unsigned long
+gelf_newphdr(Elf *elf, size_t phnum) {
+    if (!valid_class(elf->e_class)) {
+	seterr(ERROR_UNKNOWN_CLASS);
+	return 0;
+    }
+    return (unsigned long)_elf_newphdr(elf, phnum, elf->e_class);
+}
+
+#endif /* __LIBELF64 */