ifconfig'ing an IPv6 pflow address stopped working

[p***@centroid.eu]

Synopsis: ifconfig'ing pflow address stopped working at one point
Category: system

System : OpenBSD 6.1
Details : OpenBSD 6.1 (GENERIC.MP) #8: Tue Jun 27 08:50:26 CEST 2017
***@syspatch-61-amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP

Architecture: OpenBSD.amd64
Machine : amd64
I got errors with ifconfig'ing the following hostname.if:

venus$ more /etc/hostname.pflow0
flowsrc [2001:db8:0:10::202] flowdst [2001:db8:0:10::352]:12345 pflowproto 5
give it a try, it won't work with my attached patch.
We're ifconfig'ing addresses only so why resolve? AI_NUMERICHOST is added as
a hint. Then it worked for me.
? ifconfig.patch
Index: ifconfig.c
===================================================================
RCS file: /cvs/src/sbin/ifconfig/ifconfig.c,v
retrieving revision 1.340
diff -u -p -u -r1.340 ifconfig.c
--- ifconfig.c 21 Mar 2017 07:24:36 -0000 1.340
+++ ifconfig.c 19 Jul 2017 10:03:33 -0000
@@ -4510,6 +4510,7 @@ pflow_addr(const char *val, struct socka
bzero(&hints, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_DGRAM; /*dummy*/
+ hints.ai_flags = AI_NUMERICHOST;

if ((error = getaddrinfo(ip, port, &hints, &res0)) != 0)
errx(1, "error in parsing address string: %s",


dmesg:
OpenBSD 6.1 (GENERIC.MP) #8: Tue Jun 27 08:50:26 CEST 2017
***@syspatch-61-amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 2130575360 (2031MB)
avail mem = 2061385728 (1965MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0
acpi at bios0 not configured
mpbios0 at bios0: Intel MP Specification 1.4
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Genuine Intel(R) CPU @ 1.60GHz, 1600.22 MHz
cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,MOVBE,NXE,LONG,LAHF,PERF,SENSOR
cpu0: 512KB 64b/line 8-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
cpu0: apic clock running at 100MHz
cpu0: mwait min=64, max=64, C-substates=0.2.2.0.2.0.3, IBE
cpu1 at mainbus0: apid 1 (application processor)
cpu1: Genuine Intel(R) CPU @ 1.60GHz, 1599.99 MHz
cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,MOVBE,NXE,LONG,LAHF,PERF,SENSOR
cpu1: 512KB 64b/line 8-way L2 cache
cpu1: smt 1, core 0, package 0
mpbios0: bus 0 is type PCI
mpbios0: bus 64 is type ISA
ioapic0 at mainbus0: apid 0 pa 0xfec00000, version 20, 24 pins
cpu0: unknown Enhanced SpeedStep CPU, msr 0x0613101a0600101a
cpu0: using only highest and lowest power states
cpu0: Enhanced SpeedStep 1600 MHz: speeds: 1600, 600 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel E600 Host" rev 0x05
pchb1 at pci0 dev 1 function 0 "Intel E600 Config" rev 0x00
ppb0 at pci0 dev 23 function 0 "Intel E600 PCIE" rev 0x00
pci1 at ppb0 bus 1
ppb1 at pci1 dev 0 function 0 "Intel EG20T PCIE" rev 0x01
pci2 at ppb1 bus 2
"Intel EG20T Packet Hub" rev 0x01 at pci2 dev 0 function 0 not configured
"Intel EG20T Ethernet" rev 0x02 at pci2 dev 0 function 1 not configured
"Intel EG20T GPIO" rev 0x01 at pci2 dev 0 function 2 not configured
ohci0 at pci2 dev 2 function 0 "Intel EG20T USB" rev 0x02: apic 0 int 19, version 1.0
ohci1 at pci2 dev 2 function 1 "Intel EG20T USB" rev 0x02: apic 0 int 19, version 1.0
ohci2 at pci2 dev 2 function 2 "Intel EG20T USB" rev 0x02: apic 0 int 19, version 1.0
ehci0 at pci2 dev 2 function 3 "Intel EG20T USB" rev 0x02: apic 0 int 19
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
"Intel EG20T USB Client" rev 0x02 at pci2 dev 2 function 4 not configured
sdhc0 at pci2 dev 4 function 0 "Intel EG20T SDIO" rev 0x01: apic 0 int 18
sdhc0: SDHC 1.0, 50 MHz base clock
sdmmc0 at sdhc0: 4-bit, sd high-speed, mmc high-speed
sdhc1 at pci2 dev 4 function 1 "Intel EG20T SDIO" rev 0x01: apic 0 int 18
sdhc1: SDHC 1.0, 50 MHz base clock
sdmmc1 at sdhc1: 4-bit, sd high-speed, mmc high-speed
ahci0 at pci2 dev 6 function 0 "Intel EG20T AHCI" rev 0x02: msi, AHCI 1.1
ahci0: port 1: 3.0Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 1 lun 0: <ATA, INTEL SSDSA2M080, 2CV1> SCSI3 0/direct fixed naa.500151795931e477
sd0: 76319MB, 512 bytes/sector, 156301488 sectors, thin
ohci3 at pci2 dev 8 function 0 "Intel EG20T USB" rev 0x02: apic 0 int 16, version 1.0
ohci4 at pci2 dev 8 function 1 "Intel EG20T USB" rev 0x02: apic 0 int 16, version 1.0
ohci5 at pci2 dev 8 function 2 "Intel EG20T USB" rev 0x02: apic 0 int 16, version 1.0
ehci1 at pci2 dev 8 function 3 "Intel EG20T USB" rev 0x02: apic 0 int 16
usb1 at ehci1: USB revision 2.0
uhub1 at usb1 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
"Intel EG20T DMA" rev 0x00 at pci2 dev 10 function 0 not configured
puc0 at pci2 dev 10 function 1 "Intel EG20T Serial" rev 0x01: ports: 1 com
com4 at puc0 port 0 apic 0 int 19: ti16750, 64 byte fifo
puc1 at pci2 dev 10 function 2 "Intel EG20T Serial" rev 0x00: ports: 1 com
com5 at puc1 port 0 apic 0 int 19: ti16750, 64 byte fifo
puc2 at pci2 dev 10 function 3 "Intel EG20T Serial" rev 0x00: ports: 1 com
com6 at puc2 port 0 apic 0 int 19: ti16750, 64 byte fifo
puc3 at pci2 dev 10 function 4 "Intel EG20T Serial" rev 0x00: ports: 1 com
com7 at puc3 port 0 apic 0 int 19: ti16750, 64 byte fifo
"Intel EG20T DMA" rev 0x00 at pci2 dev 12 function 0 not configured
"Intel EG20T SPI" rev 0x00 at pci2 dev 12 function 1 not configured
"Intel EG20T I2C" rev 0x00 at pci2 dev 12 function 2 not configured
"Intel EG20T CAN" rev 0x00 at pci2 dev 12 function 3 not configured
"Intel EG20T 1588" rev 0x01 at pci2 dev 12 function 4 not configured
usb2 at ohci0: USB revision 1.0
uhub2 at usb2 configuration 1 interface 0 "Intel OHCI root hub" rev 1.00/1.00 addr 1
usb3 at ohci1: USB revision 1.0
uhub3 at usb3 configuration 1 interface 0 "Intel OHCI root hub" rev 1.00/1.00 addr 1
usb4 at ohci2: USB revision 1.0
uhub4 at usb4 configuration 1 interface 0 "Intel OHCI root hub" rev 1.00/1.00 addr 1
usb5 at ohci3: USB revision 1.0
uhub5 at usb5 configuration 1 interface 0 "Intel OHCI root hub" rev 1.00/1.00 addr 1
usb6 at ohci4: USB revision 1.0
uhub6 at usb6 configuration 1 interface 0 "Intel OHCI root hub" rev 1.00/1.00 addr 1
usb7 at ohci5: USB revision 1.0
uhub7 at usb7 configuration 1 interface 0 "Intel OHCI root hub" rev 1.00/1.00 addr 1
ppb2 at pci0 dev 24 function 0 "Intel E600 PCIE" rev 0x00
pci3 at ppb2 bus 3
ppb3 at pci3 dev 0 function 0 "IDT 89HPES4T4" rev 0x0e
pci4 at ppb3 bus 4
ppb4 at pci4 dev 2 function 0 "IDT 89HPES4T4" rev 0x0e
pci5 at ppb4 bus 5
em0 at pci5 dev 0 function 0 "Intel 82574L" rev 0x00: msi, address 00:00:24:d1:5d:f4
ppb5 at pci4 dev 3 function 0 "IDT 89HPES4T4" rev 0x0e
pci6 at ppb5 bus 6
em1 at pci6 dev 0 function 0 "Intel 82574L" rev 0x00: msi, address 00:00:24:d1:5d:f5
ppb6 at pci4 dev 4 function 0 "IDT 89HPES4T4" rev 0x0e
pci7 at ppb6 bus 7
ppb7 at pci0 dev 25 function 0 "Intel E600 PCIE" rev 0x00
pci8 at ppb7 bus 8
ppb8 at pci8 dev 0 function 0 "IDT 89HPES4T4" rev 0x0e
pci9 at ppb8 bus 9
ppb9 at pci9 dev 2 function 0 "IDT 89HPES4T4" rev 0x0e
pci10 at ppb9 bus 10
em2 at pci10 dev 0 function 0 "Intel 82574L" rev 0x00: msi, address 00:00:24:d1:5d:f6
ppb10 at pci9 dev 3 function 0 "IDT 89HPES4T4" rev 0x0e
pci11 at ppb10 bus 11
em3 at pci11 dev 0 function 0 "Intel 82574L" rev 0x00: msi, address 00:00:24:d1:5d:f7
ppb11 at pci9 dev 4 function 0 "IDT 89HPES4T4" rev 0x0e
pci12 at ppb11 bus 12
ppb12 at pci12 dev 0 function 0 "IDT 89HPES5T5ZB" rev 0x0e
pci13 at ppb12 bus 13
ppb13 at pci13 dev 2 function 0 "IDT 89HPES5T5ZB" rev 0x0e
pci14 at ppb13 bus 14
em4 at pci14 dev 0 function 0 "Intel 82574L" rev 0x00: msi, address 00:00:24:d1:75:68
ppb14 at pci13 dev 3 function 0 "IDT 89HPES5T5ZB" rev 0x0e
pci15 at ppb14 bus 15
em5 at pci15 dev 0 function 0 "Intel 82574L" rev 0x00: msi, address 00:00:24:d1:75:69
ppb15 at pci13 dev 4 function 0 "IDT 89HPES5T5ZB" rev 0x0e
pci16 at ppb15 bus 16
em6 at pci16 dev 0 function 0 "Intel 82574L" rev 0x00: msi, address 00:00:24:d1:75:6a
ppb16 at pci13 dev 5 function 0 "IDT 89HPES5T5ZB" rev 0x0e
pci17 at ppb16 bus 17
em7 at pci17 dev 0 function 0 "Intel 82574L" rev 0x00: msi, address 00:00:24:d1:75:6b
ppb17 at pci0 dev 26 function 0 "Intel E600 PCIE" rev 0x00
pci18 at ppb17 bus 18
ppb18 at pci18 dev 0 function 0 "IDT 89HPES5T5ZB" rev 0x0e
pci19 at ppb18 bus 19
ppb19 at pci19 dev 2 function 0 "IDT 89HPES5T5ZB" rev 0x0e
pci20 at ppb19 bus 20
em8 at pci20 dev 0 function 0 "Intel 82574L" rev 0x00: msi, address 00:00:24:d0:e0:34
ppb20 at pci19 dev 3 function 0 "IDT 89HPES5T5ZB" rev 0x0e
pci21 at ppb20 bus 21
em9 at pci21 dev 0 function 0 "Intel 82574L" rev 0x00: msi, address 00:00:24:d0:e0:35
ppb21 at pci19 dev 4 function 0 "IDT 89HPES5T5ZB" rev 0x0e
pci22 at ppb21 bus 22
em10 at pci22 dev 0 function 0 "Intel 82574L" rev 0x00: msi, address 00:00:24:d0:e0:36
ppb22 at pci19 dev 5 function 0 "IDT 89HPES5T5ZB" rev 0x0e
pci23 at ppb22 bus 23
em11 at pci23 dev 0 function 0 "Intel 82574L" rev 0x00: msi, address 00:00:24:d0:e0:37
tcpcib0 at pci0 dev 31 function 0 "Intel E600 LPC" rev 0x00: 14318179 Hz timer, watchdog
isa0 at tcpcib0
isadma0 at isa0
com0 at isa0 port 0x3f8/8 irq 4: ti16750, 64 byte fifo
com0: console
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
skgpio0 at isa0 port 0x680/32
gpio0 at skgpio0: 16 pins
gpio1 at skgpio0: 2 pins
vmm0 at mainbus0: VMX
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (4bcb82dcecf261d5.a) swap on sd0b dump on sd0b

usbdevs:
Controller /dev/usb0:
addr 1: high speed, self powered, config 1, EHCI root hub(0x0000), Intel(0x8086), rev 1.00
port 1 powered
port 2 powered
port 3 powered
Controller /dev/usb1:
addr 1: high speed, self powered, config 1, EHCI root hub(0x0000), Intel(0x8086), rev 1.00
port 1 powered
port 2 powered
port 3 powered
Controller /dev/usb2:
addr 1: full speed, self powered, config 1, OHCI root hub(0x0000), Intel(0x8086), rev 1.00
port 1 powered
Controller /dev/usb3:
addr 1: full speed, self powered, config 1, OHCI root hub(0x0000), Intel(0x8086), rev 1.00
port 1 powered
Controller /dev/usb4:
addr 1: full speed, self powered, config 1, OHCI root hub(0x0000), Intel(0x8086), rev 1.00
port 1 powered
Controller /dev/usb5:
addr 1: full speed, self powered, config 1, OHCI root hub(0x0000), Intel(0x8086), rev 1.00
port 1 powered
Controller /dev/usb6:
addr 1: full speed, self powered, config 1, OHCI root hub(0x0000), Intel(0x8086), rev 1.00
port 1 powered
Controller /dev/usb7:
addr 1: full speed, self powered, config 1, OHCI root hub(0x0000), Intel(0x8086), rev 1.00
port 1 powered