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From bd47a98d3ce2c5e1d74deb7bc384e416a9070b96 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
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Date: Thu, 9 Apr 2020 11:18:26 +0200
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Subject: [PATCH] basic/parse-util: add safe_atoux64()
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(cherry picked from commit ce51632a357d347737bf40d3817df331cd8874cb)
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Related: #1848373
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---
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src/basic/parse-util.c | 4 ++--
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src/basic/parse-util.h | 12 +++++++++++-
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src/test/test-parse-util.c | 39 ++++++++++++++++++++++++++++++++++++++
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3 files changed, 52 insertions(+), 3 deletions(-)
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diff --git a/src/basic/parse-util.c b/src/basic/parse-util.c
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index 056e56765e..67056c0434 100644
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--- a/src/basic/parse-util.c
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+++ b/src/basic/parse-util.c
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@@ -433,7 +433,7 @@ int safe_atoi(const char *s, int *ret_i) {
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return 0;
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}
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-int safe_atollu(const char *s, long long unsigned *ret_llu) {
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+int safe_atollu_full(const char *s, unsigned base, long long unsigned *ret_llu) {
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char *x = NULL;
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unsigned long long l;
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@@ -442,7 +442,7 @@ int safe_atollu(const char *s, long long unsigned *ret_llu) {
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s += strspn(s, WHITESPACE);
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errno = 0;
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- l = strtoull(s, &x, 0);
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+ l = strtoull(s, &x, base);
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if (errno > 0)
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return -errno;
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if (!x || x == s || *x != 0)
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diff --git a/src/basic/parse-util.h b/src/basic/parse-util.h
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index 1fc1af7615..8a49257050 100644
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--- a/src/basic/parse-util.h
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+++ b/src/basic/parse-util.h
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@@ -33,7 +33,6 @@ static inline int safe_atou(const char *s, unsigned *ret_u) {
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}
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int safe_atoi(const char *s, int *ret_i);
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-int safe_atollu(const char *s, unsigned long long *ret_u);
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int safe_atolli(const char *s, long long int *ret_i);
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int safe_atou8(const char *s, uint8_t *ret);
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@@ -64,6 +63,12 @@ static inline int safe_atoi32(const char *s, int32_t *ret_i) {
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return safe_atoi(s, (int*) ret_i);
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}
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+int safe_atollu_full(const char *s, unsigned base, long long unsigned *ret_llu);
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+
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+static inline int safe_atollu(const char *s, long long unsigned *ret_llu) {
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+ return safe_atollu_full(s, 0, ret_llu);
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+}
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+
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static inline int safe_atou64(const char *s, uint64_t *ret_u) {
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assert_cc(sizeof(uint64_t) == sizeof(unsigned long long));
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return safe_atollu(s, (unsigned long long*) ret_u);
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@@ -74,6 +79,11 @@ static inline int safe_atoi64(const char *s, int64_t *ret_i) {
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return safe_atolli(s, (long long int*) ret_i);
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}
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+static inline int safe_atoux64(const char *s, uint64_t *ret) {
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+ assert_cc(sizeof(int64_t) == sizeof(long long unsigned));
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+ return safe_atollu_full(s, 16, (long long unsigned*) ret);
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+}
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+
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#if LONG_MAX == INT_MAX
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static inline int safe_atolu(const char *s, unsigned long *ret_u) {
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assert_cc(sizeof(unsigned long) == sizeof(unsigned));
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diff --git a/src/test/test-parse-util.c b/src/test/test-parse-util.c
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index e9aef5e882..8b182d9bdc 100644
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--- a/src/test/test-parse-util.c
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+++ b/src/test/test-parse-util.c
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@@ -561,6 +561,44 @@ static void test_safe_atoi64(void) {
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assert_se(r == -EINVAL);
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}
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+static void test_safe_atoux64(void) {
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+ int r;
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+ uint64_t l;
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+
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+ r = safe_atoux64("12345", &l);
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+ assert_se(r == 0);
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+ assert_se(l == 0x12345);
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+
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+ r = safe_atoux64(" 12345", &l);
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+ assert_se(r == 0);
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+ assert_se(l == 0x12345);
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+
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+ r = safe_atoux64("0x12345", &l);
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+ assert_se(r == 0);
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+ assert_se(l == 0x12345);
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+
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+ r = safe_atoux64("18446744073709551617", &l);
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+ assert_se(r == -ERANGE);
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+
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+ r = safe_atoux64("-1", &l);
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+ assert_se(r == -ERANGE);
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+
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+ r = safe_atoux64(" -1", &l);
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+ assert_se(r == -ERANGE);
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+
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+ r = safe_atoux64("junk", &l);
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+ assert_se(r == -EINVAL);
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+
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+ r = safe_atoux64("123x", &l);
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+ assert_se(r == -EINVAL);
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+
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+ r = safe_atoux64("12.3", &l);
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+ assert_se(r == -EINVAL);
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+
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+ r = safe_atoux64("", &l);
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+ assert_se(r == -EINVAL);
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+}
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+
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static void test_safe_atod(void) {
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int r;
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double d;
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@@ -836,6 +874,7 @@ int main(int argc, char *argv[]) {
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test_safe_atoux16();
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test_safe_atou64();
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test_safe_atoi64();
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+ test_safe_atoux64();
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test_safe_atod();
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test_parse_percent();
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test_parse_percent_unbounded();
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