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author | Paolo Bonzini <pbonzini@redhat.com> | 2015-09-10 10:02:00 +0200 |
---|---|---|
committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-09-10 10:02:00 +0200 |
commit | 47d4be12c3997343e436c6cca89aefbbbeb70863 (patch) | |
tree | a4edcff0049477f2a63a375f29263f4d222d8696 | |
parent | 9fd1a94888cd6a559f95c3596ec1ac28b74838c1 (diff) | |
download | qemu-47d4be12c3997343e436c6cca89aefbbbeb70863.zip qemu-47d4be12c3997343e436c6cca89aefbbbeb70863.tar.gz qemu-47d4be12c3997343e436c6cca89aefbbbeb70863.tar.bz2 |
cutils: work around platform differences in strto{l,ul,ll,ull}
Linux returns 0 if no conversion was made, while OS X and presumably
the BSDs return EINVAL. The OS X convention rejects more invalid
inputs, so convert to it and adjust the test case.
Windows returns 1 from strtoul and strtoull (instead of -1) for
negative out-of-range input; fix it up.
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r-- | tests/test-cutils.c | 57 | ||||
-rw-r--r-- | util/cutils.c | 24 |
2 files changed, 35 insertions, 46 deletions
diff --git a/tests/test-cutils.c b/tests/test-cutils.c index a7a15a5..0046c61 100644 --- a/tests/test-cutils.c +++ b/tests/test-cutils.c @@ -264,9 +264,7 @@ static void test_qemu_strtol_empty(void) err = qemu_strtol(str, &endptr, 0, &res); - g_assert_cmpint(err, ==, 0); - g_assert_cmpint(res, ==, 0); - g_assert(endptr == str); + g_assert_cmpint(err, ==, -EINVAL); } static void test_qemu_strtol_whitespace(void) @@ -279,9 +277,7 @@ static void test_qemu_strtol_whitespace(void) err = qemu_strtol(str, &endptr, 0, &res); - g_assert_cmpint(err, ==, 0); - g_assert_cmpint(res, ==, 0); - g_assert(endptr == str); + g_assert_cmpint(err, ==, -EINVAL); } static void test_qemu_strtol_invalid(void) @@ -294,9 +290,7 @@ static void test_qemu_strtol_invalid(void) err = qemu_strtol(str, &endptr, 0, &res); - g_assert_cmpint(err, ==, 0); - g_assert_cmpint(res, ==, 0); - g_assert(endptr == str); + g_assert_cmpint(err, ==, -EINVAL); } static void test_qemu_strtol_trailing(void) @@ -478,8 +472,7 @@ static void test_qemu_strtol_full_empty(void) err = qemu_strtol(str, NULL, 0, &res); - g_assert_cmpint(err, ==, 0); - g_assert_cmpint(res, ==, 0); + g_assert_cmpint(err, ==, -EINVAL); } static void test_qemu_strtol_full_negative(void) @@ -555,9 +548,7 @@ static void test_qemu_strtoul_empty(void) err = qemu_strtoul(str, &endptr, 0, &res); - g_assert_cmpint(err, ==, 0); - g_assert_cmpint(res, ==, 0); - g_assert(endptr == str); + g_assert_cmpint(err, ==, -EINVAL); } static void test_qemu_strtoul_whitespace(void) @@ -570,9 +561,7 @@ static void test_qemu_strtoul_whitespace(void) err = qemu_strtoul(str, &endptr, 0, &res); - g_assert_cmpint(err, ==, 0); - g_assert_cmpint(res, ==, 0); - g_assert(endptr == str); + g_assert_cmpint(err, ==, -EINVAL); } static void test_qemu_strtoul_invalid(void) @@ -585,8 +574,7 @@ static void test_qemu_strtoul_invalid(void) err = qemu_strtoul(str, &endptr, 0, &res); - g_assert_cmpint(err, ==, 0); - g_assert(endptr == str); + g_assert_cmpint(err, ==, -EINVAL); } static void test_qemu_strtoul_trailing(void) @@ -765,8 +753,7 @@ static void test_qemu_strtoul_full_empty(void) err = qemu_strtoul(str, NULL, 0, &res); - g_assert_cmpint(err, ==, 0); - g_assert_cmpint(res, ==, 0); + g_assert_cmpint(err, ==, -EINVAL); } static void test_qemu_strtoul_full_negative(void) { @@ -840,9 +827,7 @@ static void test_qemu_strtoll_empty(void) err = qemu_strtoll(str, &endptr, 0, &res); - g_assert_cmpint(err, ==, 0); - g_assert_cmpint(res, ==, 0); - g_assert(endptr == str); + g_assert_cmpint(err, ==, -EINVAL); } static void test_qemu_strtoll_whitespace(void) @@ -855,9 +840,7 @@ static void test_qemu_strtoll_whitespace(void) err = qemu_strtoll(str, &endptr, 0, &res); - g_assert_cmpint(err, ==, 0); - g_assert_cmpint(res, ==, 0); - g_assert(endptr == str); + g_assert_cmpint(err, ==, -EINVAL); } static void test_qemu_strtoll_invalid(void) @@ -870,8 +853,7 @@ static void test_qemu_strtoll_invalid(void) err = qemu_strtoll(str, &endptr, 0, &res); - g_assert_cmpint(err, ==, 0); - g_assert(endptr == str); + g_assert_cmpint(err, ==, -EINVAL); } static void test_qemu_strtoll_trailing(void) @@ -1050,8 +1032,7 @@ static void test_qemu_strtoll_full_empty(void) err = qemu_strtoll(str, NULL, 0, &res); - g_assert_cmpint(err, ==, 0); - g_assert_cmpint(res, ==, 0); + g_assert_cmpint(err, ==, -EINVAL); } static void test_qemu_strtoll_full_negative(void) @@ -1128,9 +1109,7 @@ static void test_qemu_strtoull_empty(void) err = qemu_strtoull(str, &endptr, 0, &res); - g_assert_cmpint(err, ==, 0); - g_assert_cmpint(res, ==, 0); - g_assert(endptr == str); + g_assert_cmpint(err, ==, -EINVAL); } static void test_qemu_strtoull_whitespace(void) @@ -1143,9 +1122,7 @@ static void test_qemu_strtoull_whitespace(void) err = qemu_strtoull(str, &endptr, 0, &res); - g_assert_cmpint(err, ==, 0); - g_assert_cmpint(res, ==, 0); - g_assert(endptr == str); + g_assert_cmpint(err, ==, -EINVAL); } static void test_qemu_strtoull_invalid(void) @@ -1158,8 +1135,7 @@ static void test_qemu_strtoull_invalid(void) err = qemu_strtoull(str, &endptr, 0, &res); - g_assert_cmpint(err, ==, 0); - g_assert(endptr == str); + g_assert_cmpint(err, ==, -EINVAL); } static void test_qemu_strtoull_trailing(void) @@ -1338,8 +1314,7 @@ static void test_qemu_strtoull_full_empty(void) err = qemu_strtoull(str, NULL, 0, &res); - g_assert_cmpint(err, ==, 0); - g_assert_cmpint(res, ==, 0); + g_assert_cmpint(err, ==, -EINVAL); } static void test_qemu_strtoull_full_negative(void) diff --git a/util/cutils.c b/util/cutils.c index 67c50e5..84ceaff 100644 --- a/util/cutils.c +++ b/util/cutils.c @@ -361,9 +361,15 @@ int64_t strtosz(const char *nptr, char **end) /** * Helper function for qemu_strto*l() functions. */ -static int check_strtox_error(const char **next, char *endptr, +static int check_strtox_error(const char *p, char *endptr, const char **next, int err) { + /* If no conversion was performed, prefer BSD behavior over glibc + * behavior. + */ + if (err == 0 && endptr == p) { + err = EINVAL; + } if (!next && *endptr) { return -EINVAL; } @@ -412,7 +418,7 @@ int qemu_strtol(const char *nptr, const char **endptr, int base, } else { errno = 0; *result = strtol(nptr, &p, base); - err = check_strtox_error(endptr, p, errno); + err = check_strtox_error(nptr, p, endptr, errno); } return err; } @@ -443,7 +449,11 @@ int qemu_strtoul(const char *nptr, const char **endptr, int base, } else { errno = 0; *result = strtoul(nptr, &p, base); - err = check_strtox_error(endptr, p, errno); + /* Windows returns 1 for negative out-of-range values. */ + if (errno == ERANGE) { + *result = -1; + } + err = check_strtox_error(nptr, p, endptr, errno); } return err; } @@ -466,7 +476,7 @@ int qemu_strtoll(const char *nptr, const char **endptr, int base, } else { errno = 0; *result = strtoll(nptr, &p, base); - err = check_strtox_error(endptr, p, errno); + err = check_strtox_error(nptr, p, endptr, errno); } return err; } @@ -489,7 +499,11 @@ int qemu_strtoull(const char *nptr, const char **endptr, int base, } else { errno = 0; *result = strtoull(nptr, &p, base); - err = check_strtox_error(endptr, p, errno); + /* Windows returns 1 for negative out-of-range values. */ + if (errno == ERANGE) { + *result = -1; + } + err = check_strtox_error(nptr, p, endptr, errno); } return err; } |