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8 Commits
0.8.5 ... 0.8.7

Author SHA1 Message Date
Guillem Jover
0b61c5ffed Release libbsd 0.8.7 2018-01-13 16:20:35 +01:00
Jason Duerstock
9ceac74e91 test: Fix nlist(3) unit test on IA64
On IA64 this is only the case in the ELF binary, but it gets normalized
when loaded at run-time.

Fixes: https://bugs.debian.org/881611
Signed-off-by: Guillem Jover <guillem@hadrons.org>
2018-01-13 16:17:28 +01:00
Adam Lackorzynski
9afc7100a1 Fix <sys/cdefs.h> for gcc with no __has_include or __has_include_next support
Fixes: https://bugs.freedesktop.org/103396
Signed-off-by: Guillem Jover <guillem@hadrons.org>
2018-01-13 16:17:10 +01:00
Guillem Jover
22fbd62368 Handle several functions now being provided by glibc
We mention that these are now superseded by the glibc implementations,
make the headers cope with already declared functions on glibc-based
systems, and document this in the man pages.
2017-12-03 16:43:28 +01:00
Guillem Jover
b4f7c065ba man: Document on what other BSDs arc4random(3) is present 2017-12-03 16:41:55 +01:00
Guillem Jover
bbf90ac3cd Release libbsd 0.8.6 2017-07-17 01:01:13 +02:00
Guillem Jover
2a8514d8a5 Fix handling of non-contiguous argv + envp in setproctitle()
The two arrays might not reference contiguous memory, and assuming they
are does break at least now on GNU/Hurd, which contains an unmapped
memory block between the memory used by the two arrays.

Just check that each element is strictly after the previous one, so that
we know there are no unmapped memory blocks inbetween.
2017-07-17 00:58:06 +02:00
Guillem Jover
3b2b7938f7 test: Fix nlist() unit test on IA64 and PowerPC 64-bit ELFv1
At least on IA64 and PowerPC 64-bit ELFv1, the functions are stored in
the .text sections but they are accessed through a function descriptor
stored in a data section, for example for PowerPC 64-bit ELFv1 that
section is called .opd.

We should take this into account when checking the n_type for the
functions we have requested information from nlist().

Rationale-by: James Clarke <jrtc27@jrtc27.com>
2017-06-25 02:10:26 +02:00
10 changed files with 55 additions and 13 deletions

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@@ -13,7 +13,7 @@ m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])],
LIBBSD_ABI_MAJOR=0
LIBBSD_ABI_MINOR=8
LIBBSD_ABI_PATCH=5
LIBBSD_ABI_PATCH=7
LIBBSD_ABI="$LIBBSD_ABI_MAJOR:$LIBBSD_ABI_MINOR:$LIBBSD_ABI_PATCH"
AC_SUBST([LIBBSD_ABI])

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@@ -67,7 +67,9 @@ int sradixsort(const unsigned char **base, int nmemb,
const unsigned char *table, unsigned endbyte);
void *reallocf(void *ptr, size_t size);
#if defined(_GNU_SOURCE) && defined(__GLIBC__) && !__GLIBC_PREREQ(2, 26)
void *reallocarray(void *ptr, size_t nmemb, size_t size);
#endif
long long strtonum(const char *nptr, long long minval, long long maxval,
const char **errstr);

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@@ -42,7 +42,9 @@ size_t strlcat(char *dst, const char *src, size_t siz);
char *strnstr(const char *str, const char *find, size_t str_len);
void strmode(mode_t mode, char *str);
#if defined(_GNU_SOURCE) && defined(__GLIBC__) && !__GLIBC_PREREQ(2, 25)
void explicit_bzero(void *buf, size_t len);
#endif
__END_DECLS
#endif

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@@ -25,10 +25,10 @@
*/
#ifndef __has_include
#define __has_include 1
#define __has_include(x) 1
#endif
#ifndef __has_include_next
#define __has_include_next 1
#define __has_include_next(x) 1
#endif
#ifdef LIBBSD_OVERLAY

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@@ -129,7 +129,11 @@ reserved to indicate an error.
.Xr random 3
.Sh HISTORY
These functions first appeared in
.Ox 2.1 .
.Ox 2.1 ,
.Fx 3.0 ,
.Nx 1.6 ,
and
.Dx 1.0 .
.Pp
The original version of this random number generator used the
RC4 (also known as ARC4) algorithm.

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@@ -72,4 +72,5 @@ pass, making it useful for clearing sensitive memory such as a password.
The
.Fn explicit_bzero
function first appeared in
.Ox 5.5 .
.Ox 5.5 ,
glibc 2.25.

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@@ -150,13 +150,36 @@ function can be used.
Otherwise the code needs to be prepared for neither of these functions being
available.
.El
.Sh SUPERSEDED
Some functions have been superseded by implementations in other system
libraries, and might disappear on the next SONAME bump, assuming those
other implementation have widespread deployment, or the implementations
are present in all major
.Nm libc
for example.
.Pp
In addition, the MD5 set of digest funtions are now provided by the
.Bl -tag -width 4m -compact
.It Fn MD5Init
.It Fn MD5Update
.It Fn MD5Pad
.It Fn MD5Final
.It Fn MD5Transform
.It Fn MD5End
.It Fn MD5File
.It Fn MD5FileChunk
.It Fn MD5Data
The set of MD5 digest functions are now provided by the
.Nm libmd
companion library, so it is advised to use that instead, as the ones
provided in
.Nm libbsd
might disappear on the next SONAME bump.
companion library, so it is advised to use that instead.
.It Fn explicit_bzero
This function is provided by
.Nm glibc
2.25.
.It Fn reallocarray
This function is provided by
.Nm glibc
2.26.
.El
.Sh SEE ALSO
.Xr arc4random 3bsd ,
.Xr bitstring 3bsd ,

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@@ -102,4 +102,5 @@ is set to
.Sh HISTORY
.Fn reallocarray
appeared in
.Ox 5.6 .
.Ox 5.6 ,
glibc 2.26.

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@@ -173,14 +173,14 @@ setproctitle_init(int argc, char *argv[], char *envp[])
end = nul + 1;
for (i = 0; i < argc || (i >= argc && argv[i]); i++) {
if (argv[i] == NULL || argv[i] < end)
if (argv[i] == NULL || argv[i] != end)
continue;
end = argv[i] + strlen(argv[i]) + 1;
}
for (i = 0; envp[i]; i++) {
if (envp[i] < end)
if (envp[i] != end)
continue;
end = envp[i] + strlen(envp[i]) + 1;

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@@ -69,8 +69,17 @@ main(int argc, char **argv)
rc = nlist(argv[0], nl);
assert(rc == 0);
#if defined(__powerpc64__) && _CALL_ELF == 1
/* On PowerPC 64-bit ELFv1, the functions are stored in
* the .text sections but they are accessed through a function
* descriptor stored in a data section, for example for PowerPC
* 64-bit that section is called .opd. */
assert(nl[0].n_type == (N_DATA | N_EXT));
assert(nl[1].n_type == (N_DATA | N_EXT));
#else
assert(nl[0].n_type == (N_TEXT | N_EXT));
assert(nl[1].n_type == (N_TEXT | N_EXT));
#endif
assert(nl[2].n_type == (N_BSS | N_EXT));
assert(nl[3].n_type == (N_DATA | N_EXT));
assert(nl[4].n_type == (N_DATA));