util-linux/backport-add-ul_strtou64.patch
2022-02-15 10:21:50 +08:00

59 lines
1.9 KiB
Diff

From a9768580a49403a6ed4fcbc0403936073e301cdb Mon Sep 17 00:00:00 2001
From: Karel Zak <kzak@redhat.com>
Date: Tue, 22 Jun 2021 14:20:42 +0200
Subject: [PATCH] include/strutils: cleanup strto..() functions
* add ul_strtos64() and ul_strtou64()
* add simple test
Addresses: https://github.com/karelzak/util-linux/issues/1358
Signed-off-by: Karel Zak <kzak@redhat.com>
Reference:https://github.com/util-linux/util-linux/commit/a9768580a49403a6ed4fcbc0403936073e301cdb
Conflict:add ul_strtou64
---
include/strutils.h | 2 ++
lib/strutils.c | 14 ++++++++++++++
2 files changed, 16 insertions(+)
diff --git a/include/strutils.h b/include/strutils.h
index 4b3182f..65b2934 100644
--- a/include/strutils.h
+++ b/include/strutils.h
@@ -16,6 +16,8 @@ extern int parse_size(const char *str, uintmax_t *res, int *power);
extern int strtosize(const char *str, uintmax_t *res);
extern uintmax_t strtosize_or_err(const char *str, const char *errmesg);
+extern int ul_strtou64(const char *str, uint64_t *num, int base);
+
extern int16_t strtos16_or_err(const char *str, const char *errmesg);
extern uint16_t strtou16_or_err(const char *str, const char *errmesg);
extern uint16_t strtox16_or_err(const char *str, const char *errmesg);
diff --git a/lib/strutils.c b/lib/strutils.c
index 6c33820..7befec1 100644
--- a/lib/strutils.c
+++ b/lib/strutils.c
@@ -320,6 +320,20 @@ char *strndup(const char *s, size_t n)
static uint32_t _strtou32_or_err(const char *str, const char *errmesg, int base);
static uint64_t _strtou64_or_err(const char *str, const char *errmesg, int base);
+int ul_strtou64(const char *str, uint64_t *num, int base)
+{
+ char *end = NULL;
+
+ errno = 0;
+ if (str == NULL || *str == '\0')
+ return -EINVAL;
+ *num = (uint64_t) strtoumax(str, &end, base);
+
+ if (errno || str == end || (end && *end))
+ return -EINVAL;
+ return 0;
+}
+
int16_t strtos16_or_err(const char *str, const char *errmesg)
{
int32_t num = strtos32_or_err(str, errmesg);
--
2.27.0