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-rw-r--r--tests/unit/test-cutils.c54
-rw-r--r--util/cutils.c29
2 files changed, 75 insertions, 8 deletions
diff --git a/tests/unit/test-cutils.c b/tests/unit/test-cutils.c
index 5908de4fd0..98671f1ac3 100644
--- a/tests/unit/test-cutils.c
+++ b/tests/unit/test-cutils.c
@@ -378,6 +378,15 @@ static void test_qemu_strtoi_hex(void)
g_assert_cmpint(err, ==, 0);
g_assert_cmpint(res, ==, 0x123);
g_assert(endptr == str + strlen(str));
+
+ str = "0x";
+ res = 999;
+ endptr = &f;
+ err = qemu_strtoi(str, &endptr, 16, &res);
+
+ g_assert_cmpint(err, ==, 0);
+ g_assert_cmpint(res, ==, 0);
+ g_assert(endptr == str + 1);
}
static void test_qemu_strtoi_max(void)
@@ -669,6 +678,15 @@ static void test_qemu_strtoui_hex(void)
g_assert_cmpint(err, ==, 0);
g_assert_cmphex(res, ==, 0x123);
g_assert(endptr == str + strlen(str));
+
+ str = "0x";
+ res = 999;
+ endptr = &f;
+ err = qemu_strtoui(str, &endptr, 16, &res);
+
+ g_assert_cmpint(err, ==, 0);
+ g_assert_cmphex(res, ==, 0);
+ g_assert(endptr == str + 1);
}
static void test_qemu_strtoui_max(void)
@@ -955,6 +973,15 @@ static void test_qemu_strtol_hex(void)
g_assert_cmpint(err, ==, 0);
g_assert_cmpint(res, ==, 0x123);
g_assert(endptr == str + strlen(str));
+
+ str = "0x";
+ res = 999;
+ endptr = &f;
+ err = qemu_strtol(str, &endptr, 16, &res);
+
+ g_assert_cmpint(err, ==, 0);
+ g_assert_cmpint(res, ==, 0);
+ g_assert(endptr == str + 1);
}
static void test_qemu_strtol_max(void)
@@ -1244,6 +1271,15 @@ static void test_qemu_strtoul_hex(void)
g_assert_cmpint(err, ==, 0);
g_assert_cmphex(res, ==, 0x123);
g_assert(endptr == str + strlen(str));
+
+ str = "0x";
+ res = 999;
+ endptr = &f;
+ err = qemu_strtoul(str, &endptr, 16, &res);
+
+ g_assert_cmpint(err, ==, 0);
+ g_assert_cmphex(res, ==, 0);
+ g_assert(endptr == str + 1);
}
static void test_qemu_strtoul_max(void)
@@ -1528,6 +1564,15 @@ static void test_qemu_strtoi64_hex(void)
g_assert_cmpint(err, ==, 0);
g_assert_cmpint(res, ==, 0x123);
g_assert(endptr == str + strlen(str));
+
+ str = "0x";
+ endptr = &f;
+ res = 999;
+ err = qemu_strtoi64(str, &endptr, 16, &res);
+
+ g_assert_cmpint(err, ==, 0);
+ g_assert_cmpint(res, ==, 0);
+ g_assert(endptr == str + 1);
}
static void test_qemu_strtoi64_max(void)
@@ -1815,6 +1860,15 @@ static void test_qemu_strtou64_hex(void)
g_assert_cmpint(err, ==, 0);
g_assert_cmphex(res, ==, 0x123);
g_assert(endptr == str + strlen(str));
+
+ str = "0x";
+ endptr = &f;
+ res = 999;
+ err = qemu_strtou64(str, &endptr, 16, &res);
+
+ g_assert_cmpint(err, ==, 0);
+ g_assert_cmphex(res, ==, 0);
+ g_assert(endptr == str + 1);
}
static void test_qemu_strtou64_max(void)
diff --git a/util/cutils.c b/util/cutils.c
index b425ed6570..ee908486da 100644
--- a/util/cutils.c
+++ b/util/cutils.c
@@ -396,9 +396,22 @@ int qemu_strtosz_metric(const char *nptr, const char **end, uint64_t *result)
* Helper function for error checking after strtol() and the like
*/
static int check_strtox_error(const char *nptr, char *ep,
- const char **endptr, int libc_errno)
+ const char **endptr, bool check_zero,
+ int libc_errno)
{
assert(ep >= nptr);
+
+ /* Windows has a bug in that it fails to parse 0 from "0x" in base 16 */
+ if (check_zero && ep == nptr && libc_errno == 0) {
+ char *tmp;
+
+ errno = 0;
+ if (strtol(nptr, &tmp, 10) == 0 && errno == 0 &&
+ (*tmp == 'x' || *tmp == 'X')) {
+ ep = tmp;
+ }
+ }
+
if (endptr) {
*endptr = ep;
}
@@ -465,7 +478,7 @@ int qemu_strtoi(const char *nptr, const char **endptr, int base,
} else {
*result = lresult;
}
- return check_strtox_error(nptr, ep, endptr, errno);
+ return check_strtox_error(nptr, ep, endptr, lresult == 0, errno);
}
/**
@@ -524,7 +537,7 @@ int qemu_strtoui(const char *nptr, const char **endptr, int base,
*result = lresult;
}
}
- return check_strtox_error(nptr, ep, endptr, errno);
+ return check_strtox_error(nptr, ep, endptr, lresult == 0, errno);
}
/**
@@ -566,7 +579,7 @@ int qemu_strtol(const char *nptr, const char **endptr, int base,
errno = 0;
*result = strtol(nptr, &ep, base);
- return check_strtox_error(nptr, ep, endptr, errno);
+ return check_strtox_error(nptr, ep, endptr, *result == 0, errno);
}
/**
@@ -613,7 +626,7 @@ int qemu_strtoul(const char *nptr, const char **endptr, int base,
if (errno == ERANGE) {
*result = -1;
}
- return check_strtox_error(nptr, ep, endptr, errno);
+ return check_strtox_error(nptr, ep, endptr, *result == 0, errno);
}
/**
@@ -639,7 +652,7 @@ int qemu_strtoi64(const char *nptr, const char **endptr, int base,
QEMU_BUILD_BUG_ON(sizeof(int64_t) != sizeof(long long));
errno = 0;
*result = strtoll(nptr, &ep, base);
- return check_strtox_error(nptr, ep, endptr, errno);
+ return check_strtox_error(nptr, ep, endptr, *result == 0, errno);
}
/**
@@ -668,7 +681,7 @@ int qemu_strtou64(const char *nptr, const char **endptr, int base,
if (errno == ERANGE) {
*result = -1;
}
- return check_strtox_error(nptr, ep, endptr, errno);
+ return check_strtox_error(nptr, ep, endptr, *result == 0, errno);
}
/**
@@ -708,7 +721,7 @@ int qemu_strtod(const char *nptr, const char **endptr, double *result)
errno = 0;
*result = strtod(nptr, &ep);
- return check_strtox_error(nptr, ep, endptr, errno);
+ return check_strtox_error(nptr, ep, endptr, false, errno);
}
/**