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Gunnar Kudrjavets 4c9b0a0314 Initialize potentially uninitialized local variables 
Compiling OpenSSL code with MSVC and /W4 results in a number of warnings.
One category of warnings is particularly interesting - C4701 (potentially
uninitialized local variable 'name' used). This warning pretty much means
that there's a code path which results in uninitialized variables being used
or returned. Depending on compiler, its options, OS, values in registers
and/or stack, the results can be nondeterministic. Cases like this are very
hard to debug so it's rational to fix these issues.

This patch contains a set of trivial fixes for all the C4701 warnings (just
initializing variables to 0 or NULL or appropriate error code) to make sure
that deterministic values will be returned from all the execution paths.

RT#3835

Signed-off-by: Matt Caswell <matt@openssl.org>

Matt's note: All of these appear to be bogus warnings, i.e. there isn't
actually a code path where an unitialised variable could be used - its just
that the compiler hasn't been able to figure that out from the logic. So
this commit is just about silencing spurious warnings.

Reviewed-by: Rich Salz <rsalz@openssl.org>
2015-05-06 13:06:46 +01:00
..
aes aes/asm/aesni-x86.pl: fix typo affecting Windows build. 2015-04-20 18:39:56 +02:00
asn1 Initialize potentially uninitialized local variables 2015-05-06 13:06:46 +01:00
bf Remove EXHEADER, TEST, APPS, links:, install: and uninstall: where relevant 2015-03-31 20:16:01 +02:00
bio memset, memcpy, sizeof consistency fixes 2015-05-05 22:18:59 -04:00
bn memset, memcpy, sizeof consistency fixes 2015-05-05 22:18:59 -04:00
buffer Use safer sizeof variant in malloc 2015-05-04 15:00:13 -04:00
camellia Remove EXHEADER, TEST, APPS, links:, install: and uninstall: where relevant 2015-03-31 20:16:01 +02:00
cast Remove EXHEADER, TEST, APPS, links:, install: and uninstall: where relevant 2015-03-31 20:16:01 +02:00
cmac Use safer sizeof variant in malloc 2015-05-04 15:00:13 -04:00
cms free NULL cleanup -- coda 2015-05-01 14:37:16 -04:00
comp memset, memcpy, sizeof consistency fixes 2015-05-05 22:18:59 -04:00
conf Use safer sizeof variant in malloc 2015-05-04 15:00:13 -04:00
des Sanity check DES_enc_write buffer length 2015-04-30 23:12:39 +01:00
dh Use safer sizeof variant in malloc 2015-05-04 15:00:13 -04:00
dsa Use safer sizeof variant in malloc 2015-05-04 15:00:13 -04:00
dso memset, memcpy, sizeof consistency fixes 2015-05-05 22:18:59 -04:00
ec memset, memcpy, sizeof consistency fixes 2015-05-05 22:18:59 -04:00
ecdh Use safer sizeof variant in malloc 2015-05-04 15:00:13 -04:00
ecdsa Use safer sizeof variant in malloc 2015-05-04 15:00:13 -04:00
engine memset, memcpy, sizeof consistency fixes 2015-05-05 22:18:59 -04:00
err Use safer sizeof variant in malloc 2015-05-04 15:00:13 -04:00
evp Initialize potentially uninitialized local variables 2015-05-06 13:06:46 +01:00
hmac Use safer sizeof variant in malloc 2015-05-04 15:00:13 -04:00
idea Remove EXHEADER, TEST, APPS, links:, install: and uninstall: where relevant 2015-03-31 20:16:01 +02:00
include/internal Error checking and memory leak fixes in NISTZ256. 2015-04-27 16:21:48 +02:00
jpake memset, memcpy, sizeof consistency fixes 2015-05-05 22:18:59 -04:00
krb5 Remove EXHEADER, TEST, APPS, links:, install: and uninstall: where relevant 2015-03-31 20:16:01 +02:00
lhash Use safer sizeof variant in malloc 2015-05-04 15:00:13 -04:00
md2 memset, memcpy, sizeof consistency fixes 2015-05-05 22:18:59 -04:00
md4 Remove EXHEADER, TEST, APPS, links:, install: and uninstall: where relevant 2015-03-31 20:16:01 +02:00
md5 Remove EXHEADER, TEST, APPS, links:, install: and uninstall: where relevant 2015-03-31 20:16:01 +02:00
mdc2 Remove EXHEADER, TEST, APPS, links:, install: and uninstall: where relevant 2015-03-31 20:16:01 +02:00
modes memset, memcpy, sizeof consistency fixes 2015-05-05 22:18:59 -04:00
objects ZLIB compression deserves a better comment 2015-05-06 02:07:58 +02:00
ocsp Use safer sizeof variant in malloc 2015-05-04 15:00:13 -04:00
pem Initialize potentially uninitialized local variables 2015-05-06 13:06:46 +01:00
perlasm Add assembly support for 32-bit iOS. 2015-04-20 15:06:22 +02:00
pkcs7 free null cleanup finale 2015-05-01 10:02:07 -04:00
pkcs12 free cleanup almost the finale 2015-04-30 17:57:32 -04:00
pqueue memset, memcpy, sizeof consistency fixes 2015-05-05 22:18:59 -04:00
rand Add OSSL_NELEM macro. 2015-05-03 12:53:08 +01:00
rc2 Remove EXHEADER, TEST, APPS, links:, install: and uninstall: where relevant 2015-03-31 20:16:01 +02:00
rc4 Remove outdated RC4 files 2015-05-02 07:23:58 -04:00
rc5 Remove EXHEADER, TEST, APPS, links:, install: and uninstall: where relevant 2015-03-31 20:16:01 +02:00
ripemd Remove EXHEADER, TEST, APPS, links:, install: and uninstall: where relevant 2015-03-31 20:16:01 +02:00
rsa memset, memcpy, sizeof consistency fixes 2015-05-05 22:18:59 -04:00
seed Remove EXHEADER, TEST, APPS, links:, install: and uninstall: where relevant 2015-03-31 20:16:01 +02:00
sha memset, memcpy, sizeof consistency fixes 2015-05-05 22:18:59 -04:00
srp Use safer sizeof variant in malloc 2015-05-04 15:00:13 -04:00
stack memset, memcpy, sizeof consistency fixes 2015-05-05 22:18:59 -04:00
store memset, memcpy, sizeof consistency fixes 2015-05-05 22:18:59 -04:00
threads free null cleanup finale 2015-05-01 10:02:07 -04:00
ts memset, memcpy, sizeof consistency fixes 2015-05-05 22:18:59 -04:00
txt_db Use safer sizeof variant in malloc 2015-05-04 15:00:13 -04:00
ui memset, memcpy, sizeof consistency fixes 2015-05-05 22:18:59 -04:00
whrlpool Remove EXHEADER, TEST, APPS, links:, install: and uninstall: where relevant 2015-03-31 20:16:01 +02:00
x509 Initialize potentially uninitialized local variables 2015-05-06 13:06:46 +01:00
x509v3 Initialize potentially uninitialized local variables 2015-05-06 13:06:46 +01:00
alphacpuid.pl
arm64cpuid.pl Add assembly support to ios64-cross. 2015-01-23 15:38:41 +01:00
arm_arch.h Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
armcap.c Add assembly support for 32-bit iOS. 2015-04-20 15:06:22 +02:00
armv4cpuid.pl Add assembly support for 32-bit iOS. 2015-04-20 15:06:22 +02:00
c64xpluscpuid.pl
constant_time_locl.h Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
cpt_err.c Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
cryptlib.c more OSSL_NELEM cases 2015-05-04 13:03:49 +01:00
cryptlib.h Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
crypto-lib.com Remove the fake RLE compression method. 2015-05-04 15:14:26 -04:00
cversion.c Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
ebcdic.c Appease clang -Wempty-translation-unit 2015-04-04 17:05:49 +02:00
ex_data.c Use safer sizeof variant in malloc 2015-05-04 15:00:13 -04:00
fips_err.h Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
fips_ers.c Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
ia64cpuid.S
install-crypto.com ui_compat cleanup; makefiles and vms 2015-02-06 16:49:17 -05:00
lock.c Use safer sizeof variant in malloc 2015-05-04 15:00:13 -04:00
LPdir_nyi.c Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
LPdir_unix.c memset, memcpy, sizeof consistency fixes 2015-05-05 22:18:59 -04:00
LPdir_vms.c memset, memcpy, sizeof consistency fixes 2015-05-05 22:18:59 -04:00
LPdir_win.c memset, memcpy, sizeof consistency fixes 2015-05-05 22:18:59 -04:00
LPdir_win32.c Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
LPdir_wince.c Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
Makefile Add assembly support for 32-bit iOS. 2015-04-20 15:06:22 +02:00
md32_common.h Keep disclaiming 16-bit support. 2015-01-23 19:09:01 +01:00
mem.c free null cleanup finale 2015-05-01 10:02:07 -04:00
mem_clr.c Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
mem_dbg.c Use safer sizeof variant in malloc 2015-05-04 15:00:13 -04:00
o_dir.c Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
o_dir.h Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
o_dir_test.c Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
o_fips.c Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
o_init.c Dead code cleanup: crypto/*.c, x509v3, demos 2015-02-02 11:08:16 -05:00
o_str.c ifdef cleanup part 3: OPENSSL_SYSNAME 2015-01-23 11:58:26 -05:00
o_str.h Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
o_time.c Re-align some comments after running the reformat script. 2015-01-22 09:20:10 +00:00
opensslconf.h.in
pariscid.pl
ppc_arch.h Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
ppccap.c Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
ppccpuid.pl
s390xcap.c Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
s390xcpuid.S
sparc_arch.h Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
sparccpuid.S
sparcv9cap.c Dead code cleanup: crypto/*.c, x509v3, demos 2015-02-02 11:08:16 -05:00
thr_id.c Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
uid.c Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
vms_rms.h Run util/openssl-format-source -v -c . 2015-01-22 09:20:09 +00:00
x86_64cpuid.pl
x86cpuid.pl