showenv.patch

--- /dev/null	2012-02-09 20:31:42.211948750 +0400
+++ kinit/showenv/Makefile	2012-02-09 17:35:01.247496983 +0400
@@ -0,0 +1,3 @@
+prog = showenv
+objs = showenv.o
+include $(CURDIR)/../rules.mk
--- /dev/null	2012-02-09 20:31:42.211948750 +0400
+++ kinit/showenv/showenv.c	2012-02-09 17:56:08.222496887 +0400
@@ -0,0 +1,72 @@
+#include <unistd.h>
+#include <stdio.h>
+#include <ctype.h>
+
+static const char usage[] = "Usage: showenv [-q|-s|-h]\n";
+static unsigned int quote = 0;
+static unsigned int shell = 0;
+
+static void
+write_ch(const char c) {
+	if (write(1, &c, 1) == -1)
+		_exit(1);
+}
+
+static void
+print_ch(const char c) {
+	if (quote && (c == '\\' || c == '"' || c == '$' || c == '`'))
+		write_ch('\\');
+	write_ch(c);
+}
+
+int main(int argc, char *argv[], char *envp[])
+{
+	unsigned int i = 0, j;
+
+	if (argc == 2 && argv[1][0] == '-') {
+		if (argv[1][1] == 'h') {
+			if (write(1, usage, sizeof(usage) - 1) == -1)
+				_exit(1);
+			return 0;
+		} else if (argv[1][1] == 'q') {
+			quote = 1;
+		} else if (argv[1][1] == 's') {
+			shell = 1;
+		}
+	}
+
+	while (envp[i]) {
+		j = 0;
+		while(envp[i][j] != '=') j++;
+		envp[i][j] = '\0';
+
+		if (shell) {
+			int k = 0;
+
+			while(envp[i][k] && (isalnum(envp[i][k]) || envp[i][k] == '_')) k++;
+
+			if (j != k) {
+				i++;
+				continue;
+			}
+		}
+		j = 0;
+		while(envp[i][j])
+			print_ch(envp[i][j++]);
+		j++;
+
+		write_ch('=');
+		if (quote)
+			write_ch('"');
+
+		while(envp[i][j])
+			print_ch(envp[i][j++]);
+
+		if (quote)
+			write_ch('"');
+		write_ch('\n');
+		i++;
+	}
+
+	return 0;
+}
--- kinit/Makefile.fix3	2009-11-10 01:31:23 +0300
+++ kinit/Makefile	2009-11-10 01:33:08 +0300
@@ -14,8 +14,9 @@ subdirs += run-init
 subdirs += fstype
 subdirs += resume
 subdirs += md_run
 subdirs += replace
+subdirs += showenv
 
 # Additional include paths files
 CFLAGS +=  -I$(srctree)/$(src)/fstype \
            -I$(srctree)/$(src)/ipconfig \