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util/cutils: Clean up variable names around qemu_strtol()

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Name same things the same, different things differently.

* qemu_strtol()'s parameter @nptr is called @p in
check_strtox_error(). Rename the latter.

* qemu_strtol()'s parameter @endptr is called @next in
check_strtox_error(). Rename the latter.

* qemu_strtol()'s variable @p is called @endptr in
check_strtox_error(). Rename both to @ep.

* qemu_strtol()'s variable @err is *negative* errno,
check_strtox_error()'s parameter @err is *positive*. Rename the
latter to @libc_errno.

Same for qemu_strtoul(), qemu_strtoi64(), qemu_strtou64(), of course.

Backports commit 717adf960933da0650d995f050d457063d591914 from qemu
This commit is contained in:
Markus Armbruster 2018-03-02 08:41:44 -05:00 committed by Lioncash
parent 41c2e1168f
commit 9236950e61
No known key found for this signature in database
GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 21 additions and 21 deletions
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42
qemu/util/cutils.c
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@ -209,21 +209,21 @@ int64_t qemu_strtosz(const char *nptr, char **end)
}
/**
* Helper function for qemu_strto*l() functions.
* Helper function for error checking after strtol() and the like
*/
static int check_strtox_error(const char *p, char *endptr, const char **next,
int err)
static int check_strtox_error(const char *nptr, char *ep,
const char **endptr, int libc_errno)
{
if (err == 0 && endptr == p) {
err = EINVAL;
if (libc_errno == 0 && ep == nptr) {
libc_errno = EINVAL;
}
if (!next && *endptr) {
if (!endptr && *ep) {
return -EINVAL;
}
if (next) {
*next = endptr;
if (endptr) {
*endptr = ep;
}
return -err;
return -libc_errno;
}
/**
@ -253,7 +253,7 @@ static int check_strtox_error(const char *p, char *endptr, const char **next,
int qemu_strtol(const char *nptr, const char **endptr, int base,
long *result)
{
char *p;
char *ep;
int err = 0;
if (!nptr) {
if (endptr) {
@ -262,8 +262,8 @@ int qemu_strtol(const char *nptr, const char **endptr, int base,
err = -EINVAL;
} else {
errno = 0;
*result = strtol(nptr, &p, base);
err = check_strtox_error(nptr, p, endptr, errno);
*result = strtol(nptr, &ep, base);
err = check_strtox_error(nptr, ep, endptr, errno);
}
return err;
}
@ -296,7 +296,7 @@ int qemu_strtol(const char *nptr, const char **endptr, int base,
int qemu_strtoul(const char *nptr, const char **endptr, int base,
unsigned long *result)
{
char *p;
char *ep;
int err = 0;
if (!nptr) {
if (endptr) {
@ -305,12 +305,12 @@ int qemu_strtoul(const char *nptr, const char **endptr, int base,
err = -EINVAL;
} else {
errno = 0;
*result = strtoul(nptr, &p, base);
*result = strtoul(nptr, &ep, base);
/* Windows returns 1 for negative out-of-range values. */
if (errno == ERANGE) {
*result = -1;
}
err = check_strtox_error(nptr, p, endptr, errno);
err = check_strtox_error(nptr, ep, endptr, errno);
}
return err;
}
@ -324,7 +324,7 @@ int qemu_strtoul(const char *nptr, const char **endptr, int base,
int qemu_strtoi64(const char *nptr, const char **endptr, int base,
int64_t *result)
{
char *p;
char *ep;
int err = 0;
if (!nptr) {
if (endptr) {
@ -334,8 +334,8 @@ int qemu_strtoi64(const char *nptr, const char **endptr, int base,
} else {
errno = 0;
/* FIXME This assumes int64_t is long long */
*result = strtoll(nptr, &p, base);
err = check_strtox_error(nptr, p, endptr, errno);
*result = strtoll(nptr, &ep, base);
err = check_strtox_error(nptr, ep, endptr, errno);
}
return err;
}
@ -348,7 +348,7 @@ int qemu_strtoi64(const char *nptr, const char **endptr, int base,
int qemu_strtou64(const char *nptr, const char **endptr, int base,
uint64_t *result)
{
char *p;
char *ep;
int err = 0;
if (!nptr) {
if (endptr) {
@ -358,12 +358,12 @@ int qemu_strtou64(const char *nptr, const char **endptr, int base,
} else {
errno = 0;
/* FIXME This assumes uint64_t is unsigned long long */
*result = strtoull(nptr, &p, base);
*result = strtoull(nptr, &ep, base);
/* Windows returns 1 for negative out-of-range values. */
if (errno == ERANGE) {
*result = -1;
}
err = check_strtox_error(nptr, p, endptr, errno);
err = check_strtox_error(nptr, ep, endptr, errno);
}
return err;
}