From a0ebd0037df973aed14779b51d59da3edc506b6a Mon Sep 17 00:00:00 2001
From: Sebastian Freundt <freundt@ga-group.nl>
Date: Fri, 5 Mar 2021 08:52:07 +0000
Subject: [PATCH] fix, extend slot to capture INT64_MIN, fixes bug #124

---
 lib/dt-core-strpf.c |  4 ++--
 lib/dt-core.c       |  2 +-
 lib/strops.c        | 16 ++++++----------
 3 files changed, 9 insertions(+), 13 deletions(-)

diff --git a/lib/dt-core-strpf.c b/lib/dt-core-strpf.c
index e03f6501..b09608d6 100644
--- a/lib/dt-core-strpf.c
+++ b/lib/dt-core-strpf.c
@@ -289,8 +289,8 @@ __strpdt_card(struct strpdt_s *d, const char *sp, struct dt_spec_s s, char **ep)
 			sp = tp;
 		}
 		if (s.spfl == DT_SPFL_N_EPOCHNS) {
-			d->st.ns = d->i % 1000000000;
-			d->i /= 1000000000;
+			d->st.ns = d->i % 1000000000LL;
+			d->i /= 1000000000LL;
 		}
 		break;
 	}
diff --git a/lib/dt-core.c b/lib/dt-core.c
index 0232e788..913ed5c1 100644
--- a/lib/dt-core.c
+++ b/lib/dt-core.c
@@ -85,7 +85,7 @@
 struct strpdt_s {
 	struct strpd_s sd;
 	struct strpt_s st;
-	long int i;
+	int64_t i;
 
 	/* use 31 bits for the difference */
 	int32_t zdiff:31;
diff --git a/lib/strops.c b/lib/strops.c
index 5dd20965..7cc205a0 100644
--- a/lib/strops.c
+++ b/lib/strops.c
@@ -113,7 +113,7 @@ strtoi32(const char *str, const char **ep)
 {
 	const char *sp = str;
 	bool negp = false;
-	int32_t res = 0;
+	int32_t res = INT32_MIN;
 
 	if (*str == '-') {
 		negp = true;
@@ -122,12 +122,10 @@ strtoi32(const char *str, const char **ep)
 	while (res < INT32_MAX / 10 && (unsigned char)(*sp ^ '0') < 10U) {
 		res *= 10, res += (unsigned char)(*sp++ ^ '0');
 	}
-	if (UNLIKELY(sp == str)) {
-		res = INT32_MIN;
-	} else if (negp) {
+	if (negp) {
 		res = -res;
 	}
-	*ep = (char*)sp;
+	*ep = res > INT32_MIN ? (char*)sp : (char*)str;
 	return res;
 }
 
@@ -137,7 +135,7 @@ strtoi64(const char *str, const char **ep)
 {
 	const char *sp = str;
 	bool negp = false;
-	int64_t res = 0;
+	int64_t res = INT64_MIN;
 
 	if (*str == '-') {
 		negp = true;
@@ -146,12 +144,10 @@ strtoi64(const char *str, const char **ep)
 	while (res < INT64_MAX / 10 && (unsigned char)(*sp ^ '0') < 10U) {
 		res *= 10, res += (unsigned char)(*sp++ ^ '0');
 	}
-	if (UNLIKELY(sp == str)) {
-		res = INT64_MIN;
-	} else if (negp) {
+	if (negp) {
 		res = -res;
 	}
-	*ep = (char*)sp;
+	*ep = res > INT64_MIN ? (char*)sp : (char*)str;
 	return res;
 }