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cracklib: Allow byte order patch to work on older Linux hosts 

Older hosts don't have the htobe* and be*toh functions defined.
Instead we fall back to checking the endian and calling bswap_*
directly.  This works on both old and new hosts.

(From OE-Core rev: 52c83ea977b0f95917ec81dff394454e1a9bd541)

Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Mark Hatle 2013-05-24 10:03:54 -05:00 committed by Richard Purdie
parent 0d2211a41c
commit 5a607c1e48
1 changed files with 65 additions and 55 deletions
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120
meta/recipes-extended/cracklib/cracklib/0001-packlib.c-support-dictionary-byte-order-dependent.patch
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@ -10,25 +10,38 @@ load them. This could fix the endian issue on multiple platform.
Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Upstream-Status: Pending
We can't use the endian.h, htobe* and be*toh functions because they are
not available on older versions of glibc, such as that found in RHEL
5.9.
Change to checking endian and directly calling bswap_* as defined in
byteswap.h.
Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
---
lib/packlib.c | 208 +++++++++++++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 204 insertions(+), 4 deletions(-)
diff --git a/lib/packlib.c b/lib/packlib.c
index 8f32d14..323ee83 100644
--- a/lib/packlib.c
+++ b/lib/packlib.c
@@ -16,6 +16,9 @@
Index: cracklib-2.8.22/lib/packlib.c
===================================================================
--- cracklib-2.8.22.orig/lib/packlib.c
+++ cracklib-2.8.22/lib/packlib.c
@@ -16,6 +16,12 @@
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
+
+#ifndef _BSD_SOURCE
+#define _BSD_SOURCE /* See feature_test_macros(7) */
+#endif
+#include <endian.h>
+#include <byteswap.h>
#include "packer.h"
static const char vers_id[] = "packlib.c : v2.3p2 Alec Muffett 18 May 1993";
@@ -45,6 +48,182 @@ typedef struct
@@ -45,6 +51,182 @@ typedef struct
char data_get[NUMWORDS][MAXWORDLEN];
} PWDICT64;
@ -40,14 +53,14 @@ index 8f32d14..323ee83 100644
+static int
+IheaderHostToBigEndian(char *pHeader, int nBitType)
+{
+ if (nBitType == en_is64)
+ if (nBitType == en_is64 && __BYTE_ORDER == __LITTLE_ENDIAN)
+ {
+ struct pi_header64 *pHeader64 = (struct pi_header64*)pHeader;
+
+ pHeader64->pih_magic = htobe64(pHeader64->pih_magic);
+ pHeader64->pih_numwords = htobe64(pHeader64->pih_numwords);
+ pHeader64->pih_blocklen = htobe16(pHeader64->pih_blocklen);
+ pHeader64->pih_pad = htobe16(pHeader64->pih_pad);
+ pHeader64->pih_magic = bswap_64(pHeader64->pih_magic);
+ pHeader64->pih_numwords = bswap_64(pHeader64->pih_numwords);
+ pHeader64->pih_blocklen = bswap_16(pHeader64->pih_blocklen);
+ pHeader64->pih_pad = bswap_16(pHeader64->pih_pad);
+
+#if DEBUG
+ printf("Header64: magic %x, numwords %x, blocklen %x, pad %x\n",
@ -55,14 +68,14 @@ index 8f32d14..323ee83 100644
+ pHeader64->pih_blocklen, pHeader64->pih_pad);
+#endif
+ }
+ else if (nBitType == en_is32)
+ else if (nBitType == en_is32 && __BYTE_ORDER == __LITTLE_ENDIAN)
+ {
+ struct pi_header *pHeader32 = (struct pi_header*)pHeader;
+
+ pHeader32->pih_magic = htobe32(pHeader32->pih_magic);
+ pHeader32->pih_numwords = htobe32(pHeader32->pih_numwords);
+ pHeader32->pih_blocklen = htobe16(pHeader32->pih_blocklen);
+ pHeader32->pih_pad = htobe16(pHeader32->pih_pad);
+ pHeader32->pih_magic = bswap_32(pHeader32->pih_magic);
+ pHeader32->pih_numwords = bswap_32(pHeader32->pih_numwords);
+ pHeader32->pih_blocklen = bswap_16(pHeader32->pih_blocklen);
+ pHeader32->pih_pad = bswap_16(pHeader32->pih_pad);
+
+#if DEBUG
+ printf("Header32: magic %x, numwords %x, blocklen %x, pad %x\n",
@ -70,7 +83,7 @@ index 8f32d14..323ee83 100644
+ pHeader32->pih_blocklen, pHeader32->pih_pad);
+#endif
+ }
+ else
+ else if (__BYTE_ORDER == __LITTLE_ENDIAN)
+ {
+ fprintf(stderr, "Neither 32 or 64: %d\n", nBitType);
+ return (-1);
@ -82,14 +95,14 @@ index 8f32d14..323ee83 100644
+static int
+IheaderBigEndianToHost(char *pHeader, int nBitType)
+{
+ if (nBitType == en_is64)
+ if (nBitType == en_is64 && __BYTE_ORDER == __LITTLE_ENDIAN)
+ {
+ struct pi_header64 *pHeader64 = (struct pi_header64*)pHeader;
+
+ pHeader64->pih_magic = be64toh(pHeader64->pih_magic);
+ pHeader64->pih_numwords = be64toh(pHeader64->pih_numwords);
+ pHeader64->pih_blocklen = be16toh(pHeader64->pih_blocklen);
+ pHeader64->pih_pad = be16toh(pHeader64->pih_pad);
+ pHeader64->pih_magic = bswap_64(pHeader64->pih_magic);
+ pHeader64->pih_numwords = bswap_64(pHeader64->pih_numwords);
+ pHeader64->pih_blocklen = bswap_16(pHeader64->pih_blocklen);
+ pHeader64->pih_pad = bswap_16(pHeader64->pih_pad);
+
+#if DEBUG
+ printf("Header64: magic %x, numwords %x, blocklen %x, pad %x\n",
@ -97,14 +110,14 @@ index 8f32d14..323ee83 100644
+ pHeader64->pih_blocklen, pHeader64->pih_pad);
+#endif
+ }
+ else if (nBitType == en_is32)
+ else if (nBitType == en_is32 && __BYTE_ORDER == __LITTLE_ENDIAN)
+ {
+ struct pi_header *pHeader32 = (struct pi_header*)pHeader;
+
+ pHeader32->pih_magic = be32toh(pHeader32->pih_magic);
+ pHeader32->pih_numwords = be32toh(pHeader32->pih_numwords);
+ pHeader32->pih_blocklen = be16toh(pHeader32->pih_blocklen);
+ pHeader32->pih_pad = be16toh(pHeader32->pih_pad);
+ pHeader32->pih_magic = bswap_32(pHeader32->pih_magic);
+ pHeader32->pih_numwords = bswap_32(pHeader32->pih_numwords);
+ pHeader32->pih_blocklen = bswap_16(pHeader32->pih_blocklen);
+ pHeader32->pih_pad = bswap_16(pHeader32->pih_pad);
+
+#if DEBUG
+ printf("Header32: magic %x, numwords %x, blocklen %x, pad %x\n",
@ -112,7 +125,7 @@ index 8f32d14..323ee83 100644
+ pHeader32->pih_blocklen, pHeader32->pih_pad);
+#endif
+ }
+ else
+ else if (__BYTE_ORDER == __LITTLE_ENDIAN)
+ {
+ fprintf(stderr, "Neither 32 or 64: %d\n", nBitType);
+ return (-1);
@ -126,27 +139,27 @@ index 8f32d14..323ee83 100644
+{
+ int i = 0;
+
+ if (nBitType == en_is64)
+ if (nBitType == en_is64 && __BYTE_ORDER == __LITTLE_ENDIAN)
+ {
+ uint64_t *pHwms64 = (uint64_t*)pHwms;
+
+ for (i = 0; i < nLen / sizeof(uint64_t); i++)
+ {
+ *pHwms64++ = htobe64(*pHwms64);
+ *pHwms64++ = bswap_64(*pHwms64);
+ }
+
+ }
+ else if (nBitType == en_is32)
+ else if (nBitType == en_is32 && __BYTE_ORDER == __LITTLE_ENDIAN)
+ {
+ uint32_t *pHwms32 = (uint32_t*)pHwms;
+
+ for (i = 0; i < nLen / sizeof(uint32_t); i++)
+ {
+ *pHwms32++ = htobe32(*pHwms32);
+ *pHwms32++ = bswap_32(*pHwms32);
+ }
+
+ }
+ else
+ else if (__BYTE_ORDER == __LITTLE_ENDIAN)
+ {
+ fprintf(stderr, "Neither 32 or 64: %d\n", nBitType);
+ return (-1);
@ -170,27 +183,27 @@ index 8f32d14..323ee83 100644
+{
+ int i = 0;
+
+ if (nBitType == en_is64)
+ if (nBitType == en_is64 && __BYTE_ORDER == __LITTLE_ENDIAN)
+ {
+ uint64_t *pHwms64 = (uint64_t*)pHwms;
+
+ for (i = 0; i < nLen / sizeof(uint64_t); i++)
+ {
+ *pHwms64++ = be64toh(*pHwms64);
+ *pHwms64++ = bswap_64(*pHwms64);
+ }
+
+ }
+ else if (nBitType == en_is32)
+ else if (nBitType == en_is32 && __BYTE_ORDER == __LITTLE_ENDIAN)
+ {
+ uint32_t *pHwms32 = (uint32_t*)pHwms;
+
+ for (i = 0; i < nLen / sizeof(uint32_t); i++)
+ {
+ *pHwms32++ = be32toh(*pHwms32);
+ *pHwms32++ = bswap_32(*pHwms32);
+ }
+
+ }
+ else
+ else if (__BYTE_ORDER == __LITTLE_ENDIAN)
+ {
+ fprintf(stderr, "Neither 32 or 64: %d\n", nBitType);
+ return (-1);
@ -211,7 +224,7 @@ index 8f32d14..323ee83 100644
static int
_PWIsBroken64(FILE *ifp)
@@ -57,6 +236,7 @@ _PWIsBroken64(FILE *ifp)
@@ -57,6 +239,7 @@ _PWIsBroken64(FILE *ifp)
return 0;
}
@ -219,7 +232,7 @@ index 8f32d14..323ee83 100644
return (pdesc64.header.pih_magic == PIH_MAGIC);
}
@@ -149,7 +329,11 @@ PWOpen(prefix, mode)
@@ -149,7 +332,11 @@ PWOpen(prefix, mode)
pdesc.header.pih_blocklen = NUMWORDS;
pdesc.header.pih_numwords = 0;
@ -232,7 +245,7 @@ index 8f32d14..323ee83 100644
} else
{
pdesc.flags &= ~PFOR_WRITE;
@@ -173,6 +357,7 @@ PWOpen(prefix, mode)
@@ -173,6 +360,7 @@ PWOpen(prefix, mode)
return ((PWDICT *) 0);
}
@ -240,7 +253,7 @@ index 8f32d14..323ee83 100644
if ((pdesc.header.pih_magic == 0) || (pdesc.header.pih_numwords == 0))
{
/* uh-oh. either a broken "64-bit" file or a garbage file. */
@@ -195,6 +380,7 @@ PWOpen(prefix, mode)
@@ -195,6 +383,7 @@ PWOpen(prefix, mode)
}
return ((PWDICT *) 0);
}
@ -248,7 +261,7 @@ index 8f32d14..323ee83 100644
if (pdesc64.header.pih_magic != PIH_MAGIC)
{
/* nope, not "64-bit" after all */
@@ -290,6 +476,7 @@ PWOpen(prefix, mode)
@@ -290,6 +479,7 @@ PWOpen(prefix, mode)
{
pdesc.flags &= ~PFOR_USEHWMS;
}
@ -256,7 +269,7 @@ index 8f32d14..323ee83 100644
for (i = 0; i < sizeof(pdesc.hwms) / sizeof(pdesc.hwms[0]); i++)
{
pdesc.hwms[i] = pdesc64.hwms[i];
@@ -299,6 +486,7 @@ PWOpen(prefix, mode)
@@ -299,6 +489,7 @@ PWOpen(prefix, mode)
{
pdesc.flags &= ~PFOR_USEHWMS;
}
@ -264,7 +277,7 @@ index 8f32d14..323ee83 100644
#if DEBUG
for (i=1; i<=0xff; i++)
{
@@ -332,7 +520,11 @@ PWClose(pwp)
@@ -332,7 +523,11 @@ PWClose(pwp)
return (-1);
}
@ -277,7 +290,7 @@ index 8f32d14..323ee83 100644
{
fprintf(stderr, "index magic fwrite failed\n");
return (-1);
@@ -351,7 +543,12 @@ PWClose(pwp)
@@ -351,7 +546,12 @@ PWClose(pwp)
printf("hwm[%02x] = %d\n", i, pwp->hwms[i]);
#endif
}
@ -291,32 +304,29 @@ index 8f32d14..323ee83 100644
}
}
@@ -405,7 +602,8 @@ PutPW(pwp, string)
@@ -405,7 +605,8 @@ PutPW(pwp, string)
datum = (uint32_t) ftell(pwp->dfp);
- fwrite((char *) &datum, sizeof(datum), 1, pwp->ifp);
+ uint32_t tmpdatum = htobe32(datum);
+ uint32_t tmpdatum = (__BYTE_ORDER == __LITTLE_ENDIAN) ? bswap_32(datum) : datum;
+ fwrite((char *) &tmpdatum, sizeof(tmpdatum), 1, pwp->ifp);
fputs(pwp->data_put[0], pwp->dfp);
putc(0, pwp->dfp);
@@ -473,6 +671,7 @@ GetPW(pwp, number)
@@ -473,6 +674,7 @@ GetPW(pwp, number)
perror("(index fread failed)");
return ((char *) 0);
}
+ datum64 = be64toh(datum64);
+ datum64 = (__BYTE_ORDER == __LITTLE_ENDIAN) ? bswap_64(datum64) : datum64;
datum = datum64;
} else {
if (fseek(pwp->ifp, sizeof(struct pi_header) + (thisblock * sizeof(uint32_t)), 0))
@@ -486,6 +685,7 @@ GetPW(pwp, number)
@@ -486,6 +688,7 @@ GetPW(pwp, number)
perror("(index fread failed)");
return ((char *) 0);
}
+ datum = be32toh(datum);
+ datum = (__BYTE_ORDER == __LITTLE_ENDIAN) ? bswap_32(datum) : datum;
}
int r = 1;
--
1.7.10.4