remainder of ps fix for UnixWare, and move [] in if/elif to indicate m4 quoting instead of test invocation

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@337 f882894a-f735-0410-b71e-b25c423dba1c

1 files changed, 51 insertions, 47 deletions

diff --git a/configure.in b/configure.in
index dc5f2812..896912bc 100644
--- a/configure.in
+++ b/configure.in
@@ -410,7 +410,7 @@ fi
 
 AC_PATH_PROG(PATH_TO_PS,ps)
 dnl  STAT UCOMM              VSZ   RSS USER       UID  PPID COMMAND
-if [ps -weo 'stat comm vsz rss user uid ppid args' 2>/dev/null | egrep -i "^ *S[TAUES]* +[UCOMDNA]+ +[VSIZE]+ +R[S]+ +U[SER]+ +U[ID]+ +P[PID]+ +[RGSCOMDNA]+" >/dev/null]
+if ps -weo 'stat comm vsz rss user uid ppid args' 2>/dev/null | egrep -i ["^ *S[TAUES]* +[UCOMDNA]+ +[VSIZE]+ +R[S]+ +U[SER]+ +U[ID]+ +P[PID]+ +[RGSCOMDNA]+"] >/dev/null
 then
         AC_DEFINE(USE_PS_VARS,1,[Define if 'ps' will be parsed with sscanf])
         AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos],[Variable list for sscanf of 'ps' output])
@@ -424,7 +424,7 @@ then
         AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s",[Format string for scanning ps output in check_rss])
   echo "      ps syntax... $PATH_TO_PS -weo 'stat comm vsz rss user ppid args'"
 dnl FreeBSD
-elif [ps waxco 'state command vsz rss uid user ppid' 2>/dev/null | egrep -i "^STAT +COMMAND +VSZ +RSS +UID +USER +PPID" >/dev/null]
+elif ps waxco 'state command vsz rss uid user ppid' 2>/dev/null | egrep -i ["^STAT +COMMAND +VSZ +RSS +UID +USER +PPID"] >/dev/null
 then
         AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
         AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos],[])
@@ -438,7 +438,7 @@ then
         AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s",[])
         echo "      ps syntax... $PATH_TO_PS -Ao 'state command vsz rss'"
 dnl BSD-like mode in RH 6.1
-elif [ps waxno 'state comm vsz rss uid user ppid args' 2>/dev/null | egrep -i "^S +COMMAND +VSZ +RSS +UID +USER +PPID +[RGSCOMDNA]+" >/dev/null]
+elif ps waxno 'state comm vsz rss uid user ppid args' 2>/dev/null | egrep -i ["^S +COMMAND +VSZ +RSS +UID +USER +PPID +[RGSCOMDNA]+"] >/dev/null
 then
         AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
         AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos],[])
@@ -454,7 +454,7 @@ then
 dnl SunOS 4.1.3:
 dnl  F  UID  PID  PPID  CP  PRI  NI  SZ  RSS  WCHAN  STAT  TT  TIME  COMMAND
 dnl
-elif [ps -laxnwww 2>/dev/null | egrep -i "^ *F(LAGS)? +UID +PID +PPID +CP +PRI +NI +(SZ)|(VSZ)|(SIZE) +RSS +WCHAN +STAT? +TTY? +TIME +COMMAND" >/dev/null]
+elif ps -laxnwww 2>/dev/null | egrep -i ["^ *F(LAGS)? +UID +PID +PPID +CP +PRI +NI +(SZ)|(VSZ)|(SIZE) +RSS +WCHAN +STAT? +TTY? +TIME +COMMAND"] >/dev/null
 then
         AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
         AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS laxnwww",[])
@@ -471,7 +471,7 @@ dnl Debian Linux / procps v1.2.9:
 dnl  FLAGS   UID   PID  PPID PRI  NI   SIZE   RSS WCHAN       STA TTY TIME COMMAND
 dnl    100     0     1     0   0   0    776    76  c0131c8c   S  ffff  0:11 init [2]
 dnl
-elif [ps laxnwww 2>/dev/null | egrep -i "^ *F(LAGS)? +UID +PID +PPID +PRI +NI +(VSZ)|(SIZE) +RSS +WCHAN +STAT? TTY +TIME +COMMAND" >/dev/null]
+elif ps laxnwww 2>/dev/null | egrep -i ["^ *F(LAGS)? +UID +PID +PPID +PRI +NI +(VSZ)|(SIZE) +RSS +WCHAN +STAT? TTY +TIME +COMMAND"] >/dev/null
 then
         AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
         AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS laxnwww",[])
@@ -485,7 +485,7 @@ then
         AC_DEFINE_UNQUOTED(RSS_FORMAT,"%*s %*s %*s %*s %*s %*s %*s %d",[])
         echo "      ps syntax... $PATH_TO_PS laxnwww"
 dnl OpenBSD (needs to come early because -exo appears to work, but does not give all procs)
-elif [ps -axo 'stat comm vsz rss user uid ppid args' 2>/dev/null | egrep -i "^ *S[TAUES]* +[UCOMDNA]+ +[VSIZE]+ +R[S]+ +U[SER]+ +U[ID]+ +P[PID]+ +[RGSCOMDNA]+" >/dev/null]
+elif ps -axo 'stat comm vsz rss user uid ppid args' 2>/dev/null | egrep -i ["^ *S[TAUES]* +[UCOMDNA]+ +[VSIZE]+ +R[S]+ +U[SER]+ +U[ID]+ +P[PID]+ +[RGSCOMDNA]+"] >/dev/null
 then
         AC_DEFINE(USE_PS_VARS,1,[Define if 'ps' will be parsed with sscanf])
         AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos],[Variable list for sscanf of 'ps' output])
@@ -499,7 +499,7 @@ then
         AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s",[Format string for scanning ps output in check_rss])
   echo "      ps syntax... $PATH_TO_PS -axo 'stat comm vsz rss user ppid args'"
 dnl AIX 4.3.3 - needs verification. This works for Tru64 - needs %*[ +] in PS_FORMAT
-elif [ps -ao 'stat comm vsz rss user uid ppid args' 2>/dev/null | egrep -i "^ *S[TAUES]* +[UCOMDNA]+ +[VSIZE]+ +R[S]+ +U[SER]+ +U[ID]+ +P[PID]+ +[RGSCOMDNA]+" >/dev/null]
+elif ps -ao 'stat comm vsz rss user uid ppid args' 2>/dev/null | egrep -i ["^ *S[TAUES]* +[UCOMDNA]+ +[VSIZE]+ +R[S]+ +U[SER]+ +U[ID]+ +P[PID]+ +[RGSCOMDNA]+"] >/dev/null
 then
         AC_DEFINE(USE_PS_VARS,1,[Define if 'ps' will be parsed with sscanf])
         AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos],[Variable list for sscanf of 'ps' output])
@@ -512,7 +512,7 @@ then
         AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -ao 'rss comm'",[])
         AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s",[])
   echo "      ps syntax... $PATH_TO_PS -ao 'stat comm vsz rss user ppid args'"
-elif [ps -eo 's comm vsz rss user uid ppid args' 2>/dev/null | egrep -i "^S[TAUES]* +C[OMDNA]+ +[VSIZE]+ +U[SER]+ +U[ID]+ +P[PID]+ +[RGSCOMDNA]+" >/dev/null]
+elif ps -eo 's comm vsz rss user uid ppid args' 2>/dev/null | egrep -i ["^S[TAUES]* +C[OMDNA]+ +[VSIZE]+ +U[SER]+ +U[ID]+ +P[PID]+ +[RGSCOMDNA]+"] >/dev/null
 then
         AC_DEFINE(USE_PS_VARS,1,[Define if 'ps' will be parsed with sscanf])
         AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos],[Variable list for sscanf of 'ps' output])
@@ -525,7 +525,7 @@ then
         AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -eo 'rss comm'",[])
         AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s",[])
         echo "      ps syntax... $PATH_TO_PS -eo 's  comm vsz rss user ppid args'"
-elif [ps -Ao 's comm vsz rss uid user ppid args' 2>/dev/null | egrep -i "^S[TAUES]* +C[OMDNA]+ +V[SIZE]+ +RSS +UID +USER +PPID +[RGSCOMDNA]+" >/dev/null]
+elif ps -Ao 's comm vsz rss uid user ppid args' 2>/dev/null | egrep -i ["^S[TAUES]* +C[OMDNA]+ +V[SIZE]+ +RSS +UID +USER +PPID +[RGSCOMDNA]+"] >/dev/null
 then
         AC_DEFINE(USE_PS_VARS,1,[Define if 'ps' will be parsed with sscanf])
         AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos],[Variable list for sscanf of 'ps' output])
@@ -538,7 +538,7 @@ then
         AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -Ao 'rss comm'",[])
         AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s",[])
         echo "      ps syntax... $PATH_TO_PS -Ao 's comm vsz rss'"
-elif [ps -Ao 'status comm vsz rss uid user ppid args' 2>/dev/null | egrep -i "^S[TAUES]* +C[OMDNA]+ +V[SIZE]+ +RSS +UID +USER +PPID +[RGSCOMDNA]+" >/dev/null]
+elif ps -Ao 'status comm vsz rss uid user ppid args' 2>/dev/null | egrep -i ["^S[TAUES]* +C[OMDNA]+ +V[SIZE]+ +RSS +UID +USER +PPID +[RGSCOMDNA]+"] >/dev/null
 then
         AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
         AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos])
@@ -551,7 +551,7 @@ then
         AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -Ao 'rss comm'",[])
         AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s",[])
         echo "      ps syntax... $PATH_TO_PS -Ao 'status comm vsz rss'"
-elif [ps -Ao 'state comm vsz rss uid user ppid args' 2>/dev/null | egrep -i "^S[TAUES]* +C[OMDNA]+ +V[SIZE]+ +RSS +UID +USER +PPID +[RGSCOMDNA]+" >/dev/null]
+elif ps -Ao 'state comm vsz rss uid user ppid args' 2>/dev/null | egrep -i ["^S[TAUES]* +C[OMDNA]+ +V[SIZE]+ +RSS +UID +USER +PPID +[RGSCOMDNA]+"] >/dev/null
 then
         AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
         AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos])
@@ -565,7 +565,7 @@ then
         AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s",[])
         echo "      ps syntax... $PATH_TO_PS -Ao 'state comm vsz rss'"
 dnl wonder who takes state instead of stat
-elif [ps -ao 'state command vsz rss user ppid args' 2>/dev/null | egrep -i "^S[TAUES]* +C[OMDNA]+ +V[SIZE]+ +RSS +UID +USER +PPID +[RGSCOMDNA]+" >/dev/null]
+elif ps -ao 'state command vsz rss user ppid args' 2>/dev/null | egrep -i ["^S[TAUES]* +C[OMDNA]+ +V[SIZE]+ +RSS +UID +USER +PPID +[RGSCOMDNA]+"] >/dev/null
 then
         AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
         AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos],[])
@@ -579,7 +579,7 @@ then
         AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s",[])
         echo "      ps syntax... $PATH_TO_PS -ao 'state command vsz rss'"
 dnl IRIX 53
-elif [ps -el 2>/dev/null | egrep -i "^ *F +S +UID +PID +PPID +C +PRI +NI +P +SZ +RSS +WCHAN +TTY +TIME +[RGSCOMDNA]+" >/dev/null]
+elif ps -el 2>/dev/null | egrep -i ["^ *F +S +UID +PID +PPID +C +PRI +NI +P +SZ +RSS +WCHAN +TTY +TIME +[RGSCOMDNA]+"] >/dev/null
 then
         AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
         AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,&pos,procprog],[])
@@ -591,7 +591,7 @@ then
         AC_DEFINE_UNQUOTED(RSS_FORMAT,"%*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %d",[])
         echo "      ps syntax... $PATH_TO_PS -el"
 dnl IRIX 63
-elif [ps -el 2>/dev/null | egrep -i "^ *F +S +UID +PID +PPID +C +PRI +NI +P +ADDR +SZ +RSS +WCHAN +TTY +TIME +[RGSCOMDNA]+" >/dev/null]
+elif ps -el 2>/dev/null | egrep -i ["^ *F +S +UID +PID +PPID +C +PRI +NI +P +ADDR +SZ +RSS +WCHAN +TTY +TIME +[RGSCOMDNA]+"] >/dev/null
 then
         AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
         AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,&pos,procprog],[])
@@ -606,7 +606,7 @@ dnl
 dnl AIX 4.1:
 dnl     F S      UID   PID  PPID   C PRI NI ADDR  SZ  RSS   WCHAN    TTY  TIME CMD
 dnl    303 A        0     0     0 120  16 -- 1c07  20   24              -  0:45 swapper
-elif [ps -el 2>/dev/null | egrep -i "^ *F +S +UID +PID +PPID +C +PRI +NI +ADDR +SZ +WCHAN +TTY +TIME +[RGSCOMDNA]+" >/dev/null]
+elif ps -el 2>/dev/null | egrep -i ["^ *F +S +UID +PID +PPID +C +PRI +NI +ADDR +SZ +WCHAN +TTY +TIME +[RGSCOMDNA]+"] >/dev/null
 then
         AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
         AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,&pos,procprog],[])
@@ -618,7 +618,7 @@ then
         AC_DEFINE_UNQUOTED(RSS_FORMAT,"%*s %*s %*s %*s %*s %*s %*s %*s %*s %d",[])
         echo "      ps syntax... $PATH_TO_PS -el"
 dnl AIX?
-elif [ps glaxen 2>/dev/null | egrep -i "^ *F +UID +PID +PPID +PRI +NI +VSZ +RSS +WCHAN +STAT +TTY +TIME +COMMAND" >/dev/null]
+elif ps glaxen 2>/dev/null | egrep -i ["^ *F +UID +PID +PPID +PRI +NI +VSZ +RSS +WCHAN +STAT +TTY +TIME +COMMAND"] >/dev/null
 then
         AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
         AC_DEFINE_UNQUOTED(PS_VARLIST,[&procuid,&procppid,procstat,&pos,procprog],[])
@@ -633,7 +633,7 @@ dnl MacOSX / Darwin
 dnl TODO: MacOSX has commands with spaces which will cause problems to PS_FORMAT
 dnl STAT      VSZ    RSS   UID USER     PPID UCOMM            COMMAND
 dnl Ss       1308    272     0 root        0 init             /sbin/init
-elif [ps waxo 'state vsz rss uid user ppid ucomm command' 2>/dev/null | egrep -i "^STAT +VSZ +RSS +UID +USER +PPID +UCOMM +COMMAND" >/dev/null]
+elif ps waxo 'state vsz rss uid user ppid ucomm command' 2>/dev/null | egrep -i ["^STAT +VSZ +RSS +UID +USER +PPID +UCOMM +COMMAND"] >/dev/null
 then
         AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
         AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos],[])
@@ -646,6 +646,19 @@ then
         AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS waxco 'rss command'",[])
         AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s",[])
         echo "      ps syntax... $PATH_TO_PS waxo 'state vsz rss command'"
+dnl UnixWare 
+elif ps -Al 2>/dev/null | egrep -i ["^ *F +S +UID +PID +PPID +CLS +PRI +NI +C +ADDR +SZ +WCHAN +TTY +TIME +COMD"] >/dev/null
+then
+        AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
+        AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,&pos,procprog],[])
+        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS -Al",[])
+        AC_DEFINE_UNQUOTED(PS_FORMAT,"%*s %s %d %*s %d %*s %*s %*s %*s %*s %*s %*s %*s %*s %n%s",[Format string for scanning ps output in check_procs])
+        if ps -Ao 'vsz comm' 2>/dev/null | egrep -i ["^ *VSZ +COMMAND"] >/dev/null
+        then
+                AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS -Ao 'vsz comm'",[])
+                AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%*s %d",[])
+        fi
+        echo "      ps syntax... $PATH_TO_PS -Al"
 else
         echo "** Unable to find usable ps syntax"
 fi
@@ -654,25 +667,25 @@ AC_ARG_WITH(df_command,--with-df-command=<syntax> sets syntax for df,DF_COMMAND=
 if test -n "$DF_COMMAND"
 then
         AC_DEFINE_UNQUOTED(DF_COMMAND,"$DF_COMMAND",[path and args for df command])
-elif [df -Pk 2>/dev/null | egrep -i "^(/dev/|[a-zA-Z]:)[a-z0-9/\\]+ +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+% +/[a-z0-9/\\]*" >/dev/null]
+elif df -Pk 2>/dev/null | egrep -i ["^(/dev/|[a-zA-Z]:)[a-z0-9/\\]+ +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+% +/[a-z0-9/\\]*"] >/dev/null
 then
         AC_PATH_PROG(PATH_TO_DF,df)
-        AC_MSG_RESULT("      df syntax... $PATH_TO_DF -Pk")
+        AC_MSG_RESULT([      df syntax... $PATH_TO_DF -Pk])
         AC_DEFINE_UNQUOTED(DF_COMMAND,"$PATH_TO_DF -Pk",[path and args for df command])
-elif [df -k 2>/dev/null | egrep -i "^/dev/[a-z0-9/]+ +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+% +/[a-z0-9/]*" >/dev/null]
+elif df -k 2>/dev/null | egrep -i ["^/dev/[a-z0-9/]+ +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+% +/[a-z0-9/]*"] >/dev/null
 then
         AC_PATH_PROG(PATH_TO_DF,df)
-        AC_MSG_RESULT("      df syntax... $PATH_TO_DF -k")
+        AC_MSG_RESULT([      df syntax... $PATH_TO_DF -k])
         AC_DEFINE_UNQUOTED(DF_COMMAND,"$PATH_TO_DF -k",[path and args for df command])
-elif [df 2>/dev/null | egrep -i "^/dev/[a-z0-9/]+ +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+% +/[a-z0-9/]*" >/dev/null]
+elif df 2>/dev/null | egrep -i ["^/dev/[a-z0-9/]+ +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+% +/[a-z0-9/]*"] >/dev/null
 then
         AC_PATH_PROG(PATH_TO_DF,df)
-        AC_MSG_RESULT("      df syntax... $PATH_TO_DF")
+        AC_MSG_RESULT([      df syntax... $PATH_TO_DF])
         AC_DEFINE_UNQUOTED(DF_COMMAND,"$PATH_TO_DF",[path and args for df command])
-elif [bdf 2>/dev/null | egrep -i "^/dev/[a-z0-9/]+ +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+% +/[a-z0-9/]*" >/dev/null]
+elif bdf 2>/dev/null | egrep -i ["^/dev/[a-z0-9/]+ +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+% +/[a-z0-9/]*"] >/dev/null
 then
         AC_PATH_PROG(PATH_TO_DF,bdf)
-        AC_MSG_RESULT("      df syntax... $PATH_TO_DF")
+        AC_MSG_RESULT([      df syntax... $PATH_TO_DF])
         AC_DEFINE_UNQUOTED(DF_COMMAND,"$PATH_TO_DF",[path and args for df command])
 else
         AC_MSG_WARN("unable to find usable df syntax")
@@ -688,43 +701,43 @@ then
         then
                 AC_DEFINE_UNQUOTED(PING_PACKETS_FIRST,"$PING_COMMAND",[Define if packet count must precede host])
         fi
-elif [ "z$ac_cv_uname_s" == "zUnixWare" && ping -n -s 127.0.0.1 56 1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null]
+elif [[ "z$ac_cv_uname_s" = "zUnixWare" ]] && ping -n -s 127.0.0.1 56 1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null
 then
         PING_COMMAND="$PATH_TO_PING -n -U -c %d %s"
         AC_DEFINE_UNQUOTED(PING_PACKETS_FIRST,"$PING_COMMAND",[Define if packet count must precede host])
         echo "      ping syntax... $PATH_TO_PING -n -U -c <count> <host>"
-elif [ping -n -U -c 1 127.0.0.1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null]
+elif ping -n -U -c 1 127.0.0.1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null
 then
         PING_COMMAND="$PATH_TO_PING -n -U -c %d %s"
         AC_DEFINE_UNQUOTED(PING_PACKETS_FIRST,"$PING_COMMAND",[Define if packet count must precede host])
         echo "      ping syntax... $PATH_TO_PING -n -U -c <count> <host>"
-elif [ping -n -c 1 127.0.0.1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null]
+elif ping -n -c 1 127.0.0.1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null
 then
         PING_COMMAND="$PATH_TO_PING -n -c %d %s"
         AC_DEFINE_UNQUOTED(PING_PACKETS_FIRST,"$PING_COMMAND",[Define if packet count must precede host])
         echo "      ping syntax... $PATH_TO_PING -n -c <count> <host>"
-elif [ping -n 127.0.0.1 -c 1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null]
+elif ping -n 127.0.0.1 -c 1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null
 then
         PING_COMMAND="$PATH_TO_PING -n %s -c %d"
         echo "      ping syntax... $PATH_TO_PING -n <host> -c <count>"
-elif [ping 127.0.0.1 -n 1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null]
+elif ping 127.0.0.1 -n 1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null
 then
         PING_COMMAND="$PATH_TO_PING %s -n %d"
         echo "      ping syntax... $PATH_TO_PING <host> -n <count>"
-elif [ping -n -s 127.0.0.1 56 1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null]
+elif ping -n -s 127.0.0.1 56 1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null
 then
         PING_COMMAND="$PATH_TO_PING -n -s %s 56 %d"
         echo "      ping syntax... $PATH_TO_PING -n -s <host> 56 <count>"
-elif [ping -n -h 127.0.0.1 -s 56 -c 1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null]
+elif ping -n -h 127.0.0.1 -s 56 -c 1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null
 then
         PING_COMMAND="$PATH_TO_PING -n -h %s -s 56 -c %d"
         echo "      ping syntax... $PATH_TO_PING -n -h <host> -s 56 -c <count>"
-elif [ping -n -s 56 -c 1 127.0.0.1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null]
+elif ping -n -s 56 -c 1 127.0.0.1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null
 then
         PING_COMMAND="$PATH_TO_PING -n -s 56 -c %d %s"
         AC_DEFINE_UNQUOTED(PING_PACKETS_FIRST,"$PING_COMMAND",[Define if packet count must precede host])
         echo "      ping syntax... $PATH_TO_PING -n -s 56 -c <count> <host>"
-elif [ping -n -c 1 127.0.0.1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null]
+elif ping -n -c 1 127.0.0.1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null
 then
         PING_COMMAND="$PATH_TO_PING -n -c %d %s"
         AC_DEFINE_UNQUOTED(PING_PACKETS_FIRST,"$PING_COMMAND",[Define if packet count must precede host])
@@ -737,32 +750,23 @@ AC_DEFINE_UNQUOTED(PING_COMMAND,"$PING_COMMAND",[path and args for ping command]
 AC_PATH_PROG(PATH_TO_NSLOOKUP,nslookup)
 if test -n "$ac_cv_path_PATH_TO_NSLOOKUP"
 then
-        AC_MSG_CHECKING("nslookup syntax")
-        if [nslookup -sil 127.0.0.1 2>&1 | grep "Invalid option: sil" >/dev/null]
+        if nslookup -sil 127.0.0.1 2>&1 | grep ["Invalid option: sil"] >/dev/null
         then
-                AC_MSG_RESULT("$PATH_TO_NSLOOKUP")
+                AC_MSG_RESULT([      nslookup syntax... $PATH_TO_NSLOOKUP])
                 AC_DEFINE_UNQUOTED(NSLOOKUP_COMMAND,"$PATH_TO_NSLOOKUP",[path and args for nslookup])
         else
-                AC_MSG_RESULT("$PATH_TO_NSLOOKUP -sil")
+                AC_MSG_RESULT([      nslookup syntax... $PATH_TO_NSLOOKUP -sil])
                 AC_DEFINE_UNQUOTED(NSLOOKUP_COMMAND,"$PATH_TO_NSLOOKUP -sil",[path and args for nslookup])
         fi
         EXTRAS="$EXTRAS check_dns"
 else
-        AC_MSG_WARN("nslookup command not found")
+        AC_MSG_WARN([nslookup command not found])
 fi
 
 AC_PATH_PROG(PATH_TO_HOST,host)
 if test -n "$ac_cv_path_PATH_TO_HOST"
 then
-        AC_MSG_CHECKING("host syntax")
-        if [host 127.0.0.1 2>&1 | grep -v "ommand not found" > /dev/null]
-        then
-                AC_MSG_RESULT("$PATH_TO_HOST")
-                AC_DEFINE_UNQUOTED(HOST_COMMAND,"$PATH_TO_HOST",[path to host binary])
-        fi
         EXTRAS="$EXTRAS check_dns"
-else    
-        AC_MSG_WARN("host command not found")
 fi
 
 AC_PATH_PROG(PATH_TO_UPTIME,uptime)