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From: "Anthony G. Basile" <blueness@gentoo.org>
To: gentoo-commits@lists.gentoo.org
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Reply-To: gentoo-dev@lists.gentoo.org, "Anthony G. Basile" <blueness@gentoo.org>
Message-ID: <d26443ff1b6cdb411dd4f7c195e4dc7824d5fcee.blueness@gentoo>
Subject: [gentoo-commits] proj/elfix:master commit in: src/
X-VCS-Repository: proj/elfix
X-VCS-Files: src/paxctl-ng.c
X-VCS-Directories: src/
X-VCS-Committer: blueness
X-VCS-Committer-Name: Anthony G. Basile
X-VCS-Revision: d26443ff1b6cdb411dd4f7c195e4dc7824d5fcee
Date: Sat, 10 Sep 2011 21:11:13 +0000 (UTC)
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commit:     d26443ff1b6cdb411dd4f7c195e4dc7824d5fcee
Author:     Anthony G. Basile <blueness <AT> gentoo <DOT> org>
AuthorDate: Sat Sep 10 21:11:06 2011 +0000
Commit:     Anthony G. Basile <blueness <AT> gentoo <DOT> org>
CommitDate: Sat Sep 10 21:11:06 2011 +0000
URL:        http://git.overlays.gentoo.org/gitweb/?p=3Dproj/elfix.git;a=3D=
commit;h=3Dd26443ff

src/paxctl-ng.c: remove create_flags option

---
 src/paxctl-ng.c |  112 ++++++++++++-------------------------------------=
------
 1 files changed, 24 insertions(+), 88 deletions(-)

diff --git a/src/paxctl-ng.c b/src/paxctl-ng.c
index 0957e36..4a099ec 100644
--- a/src/paxctl-ng.c
+++ b/src/paxctl-ng.c
@@ -54,7 +54,6 @@ print_help(char *v)
 		"             : -x  Disable RANDEXEC\t-X  Enable  RANDEXEC\n"
 		"             : -s  Disable SEGMEXEC\t-X  Enable  SEGMEXEC\n"
 		"             : -z  Default least secure\t-Z Default most secure\n"
-		"             : -C  Created PT_PAX_FLAGS program header\n"
 		"             : -h  Print out this help\n",
 		basename(v),
 		basename(v)
@@ -65,7 +64,7 @@ print_help(char *v)
=20
=20
 char *
-parse_cmd_args( int c, char *v[], int *pax_flags, int *create_flag )
+parse_cmd_args( int c, char *v[], int *pax_flags )
 {
 	int i, oc;
=20
@@ -73,7 +72,6 @@ parse_cmd_args( int c, char *v[], int *pax_flags, int *=
create_flag )
 		error(EXIT_FAILURE, 0, "Usage: %s {[-pPeEmMrRxXsSzZC] ELFfile | [-h]}"=
, v[0]);
=20
 	*pax_flags =3D 0;
-	*create_flag =3D 0;
 	while((oc =3D getopt(c, v,":pPeEmMrRxXsSzZCh")) !=3D -1)
 		switch(oc)
 		{
@@ -105,9 +103,6 @@ parse_cmd_args( int c, char *v[], int *pax_flags, int=
 *create_flag )
 				break ;
 			case 'Z':
 				break;
-			case 'C':
-				*create_flag =3D 1;
-				break;
 			case 'h':
 				print_help(v[0]);
 				break;
@@ -139,112 +134,53 @@ no_pt_pax_flags(Elf *e)
=20
=20
 int
-create_pt_pax_flags(Elf *e)
-{
-	size_t i, phnum;
-	GElf_Phdr phdr;
-
-	elf_getphdrnum(e, &phnum);
-	for(i=3D0; i<phnum; ++i)
-	{
-		if(gelf_getphdr(e, i, &phdr) !=3D &phdr)
-			error(EXIT_FAILURE, 0, "gelf_getphdr(): %s", elf_errmsg(elf_errno()))=
;
-		if(phdr.p_type =3D=3D PT_NULL)
-		{
-			phdr.p_type =3D PT_PAX_FLAGS;
-			phdr.p_flags =3D PF_NOEMUTRAMP|PF_NORANDEXEC;
-			if(!gelf_update_phdr(e, i, &phdr))
-				error(EXIT_FAILURE, 0, "gelf_update_phdr(): %s", elf_errmsg(elf_errn=
o()));
-			return 1;
-		}
-	}
-
-
-	/*
-	if( !(phdr =3D gelf_newphdr(Elf *e, size_t phnum)) )
-	{
-		phdr.p_type =3D PT_PAX_FLAGS;
-		//phdr.p_offset
-		//phdr.p_vaddr
-		//phdr.p_paddr
-		//phdr.p_filesz
-		//phdr.p_memsz
-		phdr.p_flags =3D PF_NOEMUTRAMP|PF_NORANDEXEC;
-		//phdr.p_align
-
-		if(!gelf_update_phdr(e, i, &phdr))
-			error(EXIT_FAILURE, 0, "gelf_update_phdr(): %s", elf_errmsg(elf_errno=
()));
-		return 1;
-	}
-		error(EXIT_FAILURE, 0, "gelf_newphdr(): %s", elf_errmsg(elf_errno()));
-	*/
-
-}
-
-
-int
 main( int argc, char *argv[])
 {
 	int fd;
-	int pax_flags, create_flag;
+	int pax_flags;
 	char *f_name;
=20
 	Elf *elf;
 	GElf_Ehdr ehdr;
=20
-	f_name =3D parse_cmd_args(argc, argv, &pax_flags, &create_flag);
+	f_name =3D parse_cmd_args(argc, argv, &pax_flags);
=20
 	if(elf_version(EV_CURRENT) =3D=3D EV_NONE)
 		error(EXIT_FAILURE, 0, "Library out of date.");
=20
-	if(create_flag)
-	{
-		if((fd =3D open(f_name, O_RDWR)) < 0)
-			error(EXIT_FAILURE, 0, "open() fail.");
-		if((elf =3D elf_begin(fd, ELF_C_RDWR_MMAP, NULL)) =3D=3D NULL)
-			error(EXIT_FAILURE, 0, "elf_begin() fail: %s", elf_errmsg(elf_errno()=
));
-	}
-	else
-	{
-		if((fd =3D open(f_name, O_RDONLY)) < 0)
-			error(EXIT_FAILURE, 0, "open() fail.");
-		if((elf =3D elf_begin(fd, ELF_C_READ, NULL)) =3D=3D NULL)
-			error(EXIT_FAILURE, 0, "elf_begin() fail: %s", elf_errmsg(elf_errno()=
));
-	}
+	if((fd =3D open(f_name, O_RDWR)) < 0)
+		error(EXIT_FAILURE, 0, "open() fail.");
+	if((elf =3D elf_begin(fd, ELF_C_RDWR_MMAP, NULL)) =3D=3D NULL)
+		error(EXIT_FAILURE, 0, "elf_begin() fail: %s", elf_errmsg(elf_errno())=
);
=20
 	if(elf_kind(elf) !=3D ELF_K_ELF)
 		error(EXIT_FAILURE, 0, "elf_kind() fail: this is not an elf file.");
=20
=20
+	/*
+	if(gelf_getehdr(elf, &ehdr) !=3D &ehdr)
+		error(EXIT_FAILURE, 0, "gelf_getehdr(): %s", elf_errmsg(elf_errno()));
=20
+	ehdr.e_ident[EI_PAX] =3D 0;
+	ehdr.e_ident[EI_PAX + 1] =3D 0;
=20
+	if(!gelf_update_ehdr(elf, &ehdr))
+		error(EXIT_FAILURE, 0, "gelf_update_ehdr(): %s", elf_errmsg(elf_errno(=
)));
=20
-	if(create_flag)
+	if(no_pt_pax_flags(elf))
 	{
-		//To be safe, let's make sure EI_PAX flags are zero-ed for most secure=
 legacy
-		if(gelf_getehdr(elf, &ehdr) !=3D &ehdr)
-			error(EXIT_FAILURE, 0, "gelf_getehdr(): %s", elf_errmsg(elf_errno()))=
;
-
-		ehdr.e_ident[EI_PAX] =3D 0;
-		ehdr.e_ident[EI_PAX + 1] =3D 0;
-
-		if(!gelf_update_ehdr(elf, &ehdr))
-			error(EXIT_FAILURE, 0, "gelf_update_ehdr(): %s", elf_errmsg(elf_errno=
()));
-
-		if(no_pt_pax_flags(elf))
+		printf("PT_PAX_FLAGS phdr not found: creating one\n");
+		if(create_pt_pax_flags(elf))
 		{
-			printf("PT_PAX_FLAGS phdr not found: creating one\n");
-			if(create_pt_pax_flags(elf))
-			{
-				printf("PT_PAX_FLAGS phdr create: succeeded\n");
-			}
-			else
-				error(EXIT_FAILURE, 0, "PT_PAX_FLAGS phdr create: failed");
+			printf("PT_PAX_FLAGS phdr create: succeeded\n");
 		}
 		else
-			error(EXIT_FAILURE, 0, "PT_PAX_FLAGS phdr found: nothing to do");
-	}=09
-
+			error(EXIT_FAILURE, 0, "PT_PAX_FLAGS phdr create: failed");
+	}
+	else
+		error(EXIT_FAILURE, 0, "PT_PAX_FLAGS phdr found: nothing to do");
+	}
+	*/
=20
=20
 	/*