From b81b2b920d300f1cb292fecf96e9d590497607f8 Mon Sep 17 00:00:00 2001
From: Thomas Bächler <thomas@archlinux.org>
Date: Fri, 4 Aug 2006 11:22:16 +0000
Subject: Solved IFS issues

git-svn-id: http://projects.archlinux.org/svn/initramfs/mkinitcpio@139 880c04e9-e011-0410-abf7-b926e227c9cd
---
 init          |  7 ++-----
 install.sh    |  5 +++++
 subs/Makefile | 11 +++++++++++
 subs/README   | 11 +++++++++++
 subs/subs.c   | 42 ++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 71 insertions(+), 5 deletions(-)
 create mode 100644 subs/Makefile
 create mode 100644 subs/README
 create mode 100644 subs/subs.c

diff --git a/init b/init
index fb504d7..aa95ae4 100644
--- a/init
+++ b/init
@@ -25,20 +25,17 @@ for cmd in $CMDLINE; do
     esac
 done
 
-OLDIFS=$IFS
-IFS=,
 if [ "x${disablehooks}" != "x" ]; then
-    for d in ${disablehooks}; do
+    for d in $(subs -n ',' ${disablehooks}); do
         export "hook_${d}=disabled"
     done
 fi
 
 if [ "x${disablemodules}" != "x" ]; then
-    for d in ${disablemodules}; do
+    for d in $(subs -n ',' ${disablemodules}); do
         export "mod_${d}=disabled"
     done
 fi
-IFS=$OLDIFS
 
 . /config
 
diff --git a/install.sh b/install.sh
index a704f29..0820065 100755
--- a/install.sh
+++ b/install.sh
@@ -16,3 +16,8 @@ install -D -m755 init ${1}/lib/initcpio/init
 install -D -m644 functions ${1}/lib/initcpio/functions
 cp -r hooks/ ${1}/lib/initcpio/
 cp -r install/ ${1}/lib/initcpio/
+
+# install subs tool to solve IFS issues
+cd subs
+make
+install -D -m755 subs ${1}/usr/lib/klibc/bin/subs
diff --git a/subs/Makefile b/subs/Makefile
new file mode 100644
index 0000000..e3ae446
--- /dev/null
+++ b/subs/Makefile
@@ -0,0 +1,11 @@
+CC = klcc
+CFLAGS = -Wall
+TARGET = subs
+
+all: $(TARGET)
+
+$(TARGET): $(TARGET).c
+	$(CC) $(CFLAGS) $(TARGET).c -o $(TARGET)
+
+clean:
+	rm -f $(TARGET)
diff --git a/subs/README b/subs/README
new file mode 100644
index 0000000..ca29eb2
--- /dev/null
+++ b/subs/README
@@ -0,0 +1,11 @@
+The subs tool has been created to solve the IFS ignorance of dash.
+Instead of doing
+
+OLDIFS=$IFS
+IFS=$char
+func $arglist
+IFS=$OLDIFS
+
+now do
+
+func $(subs -n $char $arglist)
diff --git a/subs/subs.c b/subs/subs.c
new file mode 100644
index 0000000..03f05c5
--- /dev/null
+++ b/subs/subs.c
@@ -0,0 +1,42 @@
+#include <strings.h>
+#include <stdio.h>
+#include <unistd.h>
+
+void usage(char *name)
+{
+  fprintf(stderr,"Usage:\n\t%s [-n <character>] [-w <character>] <string>\n",name);
+}
+
+int main(int argc, char *argv[])
+{
+  char *h,n=':',w=' ';
+  int c;
+
+  while((c=getopt(argc, argv, "n:w:"))!=-1)
+    switch(c)
+    {
+      case 'n':
+        n=optarg[0];
+        break;
+      case 'w':
+        w=optarg[0];
+        break;
+      default:
+        usage(argv[0]);
+        return 1;
+    }
+
+  if(optind>=argc)
+  {
+    usage(argv[0]);
+    return 1;
+  }
+
+  h=argv[optind];
+  while( (h=index(h, n)) !=NULL )
+    *h++=w;
+  
+  printf("%s",argv[optind]);
+
+  return 0;
+}
-- 
cgit v1.2.3-24-g4f1b