gno/lib/libc/gen/syslog.asm

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* These syslog() related routines use syslogd. They replace the old
* syslog() routines in the lbsd library.
*
* If syslogd is not found, syslog() calls old_syslog with the handle it
* would have passed to syslogd. If you are sure your program will have
* syslogd available when it is run, you can replace old_syslog() with
* a dummy routine that does nothing and returns. This will make your
* program smaller.
*
* syslogd is built into init and is automatically started by it. I
* recommend that you use init with GNO/ME 2.0
*
* Phillip Vandry, August 1993
*
* $Id: syslog.asm,v 1.1 1997/02/28 05:12:45 gdr Exp $
*
* This file is formatted for tab stops at positions 10, 16, 41, 40, 57,
* 65, and 73 (standard Orca/M systabs setting).
*
keep syslog
mcopy syslog.mac
case on
dummy start ; ends up in .root
end
syslog start libc_gen__
tsc
sec
sbc #$8
tcs
phd
tcd
* Direct: 1=va_list, 9=RTL, 12=prio, 14=char *, 18=args
lda #0
sta 3
sta 7
tdc
clc
adc #18
sta 1
sta 5
pea 0
tdc
inc a
pha
pei 16
pei 14
pei 12
jsl vsyslog
lda 1
clc
sec
sbc 5
tax ; num extra parms
* Direct: 1=va_list, 9=RTL, 12=prio, 14=char *, 18=args
lda 10
sta 16,x
lda 9
sta 15,x
pld
tsc
clc
adc #14
phx
adc 1,s
tcs
rtl
end
vsyslog start libc_gen__
using syslog_dat
space equ 26
argstart equ space+4
tsc
sec
sbc #space
tcs
phd
tcd
phb
prio equ argstart
format equ argstart+2
valist equ argstart+6
sendhand equ 1
sendptr equ 5
lerrno equ 9
errlen equ 9
chand equ 11
cptr equ 15
cumlen equ 19
error equ 23
lda >~USER_ID ; uck! bad name!
sta >memid
* Log only if bit clear in LogMask
lda >errno
sta lerrno
lda prio
and #7
tax
lda >LogMask
lsrloop lsr a
dex
bpl lsrloop
* carry = apropriate bit
bcc dolog
* get rif of parameters by running through sprintf
jsr mksendhand
pei valist+2
pei valist
pei format+2
pei format
pei sendptr+2
pei sendptr
jsl vsprintf
~DisposeHandle <sendhand
brl return
dolog anop
lda prio
and #$3f8
bne gotone
lda prio
ora >LogFacility
sta prio
gotone anop
jsr mksendhand
jsr cpsendhand
lda >LogTag
sta cptr
lda >LogTag+2
sta cptr+2
ora cptr
beq notag
lda >TagLen
bne already
ldy #0
short m
lppp lda [cptr],y
beq foundlen
iny
bra lppp
foundlen long m
tya
sta >TagLen
already sta [cumlen]
tay
short m
fincp2 dey
bmi fincp
lda [cptr],y
sta [sendptr],y
bra fincp2
fincp long m
lda [cumlen]
clc
adc sendptr
sta sendptr
lda sendptr+2
adc #0
sta sendptr+2
notag anop
lda >LogFlag
lsr a
bcc nopid
pha
ldx #$0903
jsl $e10008 ; getpid
pea fmt|-16
pea fmt
pei sendptr+2
pei sendptr
jsl sprintf
pha
clc
adc [cumlen]
sta [cumlen]
pla
clc
adc sendptr
sta sendptr
lda sendptr+2
adc #0
sta sendptr+2
nopid anop
lda >LogTag
ora >LogTag+2
beq notagsecond
lda [cumlen]
inc a
inc a
sta [cumlen]
lda #$203a
sta [sendptr]
lda sendptr
clc
adc #2
sta sendptr
lda sendptr+2
adc #0
sta sendptr+2
notagsecond anop
lda lerrno
bne isone
lda #ptrtozero
sta error
lda #^ptrtozero
sta error+2
bra none
isone pha
jsl strerror
sta error
stx error+2
phx
pha
jsl strlen
sta errlen
none ldx #2 ; = bytes needed in copy (one null+slop)
ldy #0
runthrough lda [format],y
cmp #$6d25 ; '%m'
beq account
and #$ff
beq endstring
iny
inx
bra runthrough
account iny
iny
txa
clc
adc errlen
tax
bra runthrough
endstring pha
pha
pea 0
phx ; length
stz chand
stz chand+2
lda format
sta cptr
lda format+2
sta cptr+2
lda >memid
pha
pea $4000
pha
pha
~NewHandle *,*,*,*
pla
plx
bcs impossible
sta chand
stx chand+2
ldy #2
lda [chand],y
sta cptr+2
lda [chand]
sta cptr
pea 0 ; offset in source
ldy #0 ; offset in dest
realtime tyx
ply
lda [format],y
cmp #$6d25 ; '%m'
beq coper
and #$ff
beq excited
iny
phy
txy
sta [cptr],y
iny
bra realtime
coper iny
iny
phy
txy ; Y=offset in destination
pea 0 ; offset in source
anotherreal tyx
ply
lda [error],y
and #$ff
beq donerr
iny
phy
txy
sta [cptr],y
iny
bra anotherreal
donerr txy
bra realtime
excited txy
sta [cptr],y ; zero
impossible anop ; jump here if malloc() failed
pei valist+2
pei valist
pei cptr+2
pei cptr
pei sendptr+2
pei sendptr
jsl vsprintf
clc
adc [cumlen]
sta [cumlen]
lda >LogFlag
and #$20 ; PERROR
beq noper
ldx cumlen
ldy cumlen+2
lda #3
jsl WriteGString ; echo on standard error
ldx #nlonly
ldy #^nlonly
lda #3
jsl WriteGString
noper lda chand
ora chand+2
beq nochand
~DisposeHandle <chand
nochand pei sendhand+2
pei sendhand
pea portname|-16
pea portname
jsl pgetport
cmp #$ffff
beq nosyslogd
pha
jsl psend
ldy #6
tryagain lda [sendhand],y
cmp >memid
bne return
cop $7f
bra tryagain
return plb
lda argstart-3
sta valist+1
lda argstart-2
sta valist+2
pld
tsc
clc
adc #(space+10)
tcs
rtl
nosyslogd jsl old_syslog
bra return
mksendhand pha
pha
pea 0
pea 1024
lda >memid
pha
pea $4000
pha
pha
~NewHandle *,*,*,*
plx
stx sendhand
plx
stx sendhand+2
bcs giveup
ldy #2
lda [sendhand],y
sta sendptr+2
lda [sendhand]
sta sendptr
rts
giveup pea 1
jsl sleep
bra mksendhand
cpsendhand ldy #(Xthis-Xsyslog-2) ; is even
phb
phk
plb
still lda Xsyslog,y
sta [sendptr],y
dey
dey
bpl still
plb
ldy #2
lda prio
sta [sendptr],y
lda sendptr
clc
adc #(Xthis-Xsyslog)
sta cumlen
lda sendptr+2
adc #0
sta cumlen+2
lda #0
sta [cumlen]
lda cumlen
clc
adc #2
sta sendptr
lda cumlen+2
adc #0
sta sendptr+2
rts
end
setlogmask start libc_gen__
using syslog_dat
* Stack: 1:RTL, 4:mask
lda 4,s
tax
lda >LogMask
sta 4,s
txa
sta >LogMask
phb
plx
ply
pla
phy
phx
plb
rtl
end
closelog start libc_gen__
using syslog_dat
rtl
end
openlog start libc_gen__
using syslog_dat
phb
plx
ply
* Stack: 1:char *, 5:int, 7:int
lda 1,s
ora 3,s
beq notag
pla
sta >LogTag
pla
sta >LogTag+2
lda #0
sta >TagLen
dc h'a9'
notag pla
pla
wastag pla
sta >LogFlag
pla
sta >LogFacility
phy
phx
plb
rtl
end
syslog_dat privdata libc_gen__
LogTag ds 4
TagLen ds 2
LogFlag ds 2
LogMask ds 2
LogFacility ds 2
memid ds 2
Xsyslog dc i'0,0,1,0,Xthis-Xsyslog'
Xthis anop
fmt dc c'[%u] ',h'0'
portname dc c'syslogd'
ptrtozero dc h'0'
nlonly dc h'01 00 0d'
end