From c854e0bd33c7a5afb04a36465bf04f861b2efef5 Mon Sep 17 00:00:00 2001
From: Pavel Hrdina <phrdina@redhat.com>
Date: Mon, 19 Aug 2019 16:01:50 +0200
Subject: [PATCH] vircgroupv2: fix parsing multiple values in single file

Our virStrToLong* helpers converts string to integers where it wraps
strtol standard function.  After the conversion happens and there are
some remaining invalid characters our helpers will fail if the second
argument is NULL.

We need to pass pointer to string in cases where there are multiple
values in a single file.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1741825

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
---
 src/util/vircgroupv2.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/src/util/vircgroupv2.c b/src/util/vircgroupv2.c
index e36c36685b..59ef2e6397 100644
--- a/src/util/vircgroupv2.c
+++ b/src/util/vircgroupv2.c
@@ -673,7 +673,7 @@ virCgroupV2GetBlkioWeight(virCgroupPtr group,
         tmp = value;
     }
 
-    if (virStrToLong_ui(tmp, NULL, 10, weight) < 0) {
+    if (virStrToLong_ui(tmp, &tmp, 10, weight) < 0) {
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("Unable to parse '%s' as an integer"),
                        tmp);
@@ -869,7 +869,7 @@ virCgroupV2GetBlkioDeviceWeight(virCgroupPtr group,
 
     if (!str) {
         *weight = 0;
-    } else if (virStrToLong_ui(str, NULL, 10, weight) < 0) {
+    } else if (virStrToLong_ui(str, &str, 10, weight) < 0) {
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("Unable to parse '%s' as an integer"),
                        str);
@@ -939,7 +939,7 @@ virCgroupV2GetBlkioDeviceReadIops(virCgroupPtr group,
 
         if (STREQLEN(tmp, "max", 3)) {
             *riops = 0;
-        } else if (virStrToLong_ui(tmp, NULL, 10, riops) < 0) {
+        } else if (virStrToLong_ui(tmp, &tmp, 10, riops) < 0) {
             virReportError(VIR_ERR_INTERNAL_ERROR,
                            _("Unable to parse '%s' as an integer"),
                            str);
@@ -1010,7 +1010,7 @@ virCgroupV2GetBlkioDeviceWriteIops(virCgroupPtr group,
 
         if (STREQLEN(tmp, "max", 3)) {
             *wiops = 0;
-        } else if (virStrToLong_ui(tmp, NULL, 10, wiops) < 0) {
+        } else if (virStrToLong_ui(tmp, &tmp, 10, wiops) < 0) {
             virReportError(VIR_ERR_INTERNAL_ERROR,
                            _("Unable to parse '%s' as an integer"),
                            str);
@@ -1081,7 +1081,7 @@ virCgroupV2GetBlkioDeviceReadBps(virCgroupPtr group,
 
         if (STREQLEN(tmp, "max", 3)) {
             *rbps = 0;
-        } else if (virStrToLong_ull(tmp, NULL, 10, rbps) < 0) {
+        } else if (virStrToLong_ull(tmp, &tmp, 10, rbps) < 0) {
             virReportError(VIR_ERR_INTERNAL_ERROR,
                            _("Unable to parse '%s' as an integer"),
                            str);
@@ -1152,7 +1152,7 @@ virCgroupV2GetBlkioDeviceWriteBps(virCgroupPtr group,
 
         if (STREQLEN(tmp, "max", 3)) {
             *wbps = 0;
-        } else if (virStrToLong_ull(tmp, NULL, 10, wbps) < 0) {
+        } else if (virStrToLong_ull(tmp, &tmp, 10, wbps) < 0) {
             virReportError(VIR_ERR_INTERNAL_ERROR,
                            _("Unable to parse '%s' as an integer"),
                            str);
@@ -1535,7 +1535,7 @@ virCgroupV2GetCpuCfsPeriod(virCgroupPtr group,
         return -1;
     }
 
-    if (virStrToLong_ull(tmp, NULL, 10, cfs_period) < 0) {
+    if (virStrToLong_ull(tmp, &tmp, 10, cfs_period) < 0) {
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("Failed to parse value '%s' from cpu.max."), str);
         return -1;
@@ -1585,7 +1585,7 @@ virCgroupV2GetCpuCfsQuota(virCgroupPtr group,
     if (STREQLEN(str, "max", 3))
         *cfs_quota = ULLONG_MAX / 1000;
 
-    if (virStrToLong_ll(str, NULL, 10, cfs_quota) < 0) {
+    if (virStrToLong_ll(str, &str, 10, cfs_quota) < 0) {
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("Failed to parse value '%s' from cpu.max."), str);
         return -1;