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authorIgor Pashev <pashev.igor@gmail.com>2012-06-24 22:28:35 +0000
committerIgor Pashev <pashev.igor@gmail.com>2012-06-24 22:28:35 +0000
commit3950ffe2a485479f6561c27364d3d7df5a21d124 (patch)
tree468c6e14449d1b1e279222ec32f676b0311917d2 /src/lib/libast/path/pathcheck.c
downloadksh-upstream.tar.gz
Imported Upstream version 93u+upstream
Diffstat (limited to 'src/lib/libast/path/pathcheck.c')
-rw-r--r--src/lib/libast/path/pathcheck.c91
1 files changed, 91 insertions, 0 deletions
diff --git a/src/lib/libast/path/pathcheck.c b/src/lib/libast/path/pathcheck.c
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+++ b/src/lib/libast/path/pathcheck.c
@@ -0,0 +1,91 @@
+/***********************************************************************
+* *
+* This software is part of the ast package *
+* Copyright (c) 1985-2011 AT&T Intellectual Property *
+* and is licensed under the *
+* Eclipse Public License, Version 1.0 *
+* by AT&T Intellectual Property *
+* *
+* A copy of the License is available at *
+* http://www.eclipse.org/org/documents/epl-v10.html *
+* (with md5 checksum b35adb5213ca9657e911e9befb180842) *
+* *
+* Information and Software Systems Research *
+* AT&T Research *
+* Florham Park NJ *
+* *
+* Glenn Fowler <gsf@research.att.com> *
+* David Korn <dgk@research.att.com> *
+* Phong Vo <kpv@research.att.com> *
+* *
+***********************************************************************/
+#pragma prototyped
+
+/*
+ * check if package+tool is ok to run
+ * a no-op here except for PARANOID packages
+ * this allows PARANOID_COMPANY to post PARANOID binaries to the www
+ *
+ * warn that the user should pay up if
+ *
+ * (1) the tool matches PARANOID
+ * (2) $_ is more than 90 days old
+ * (3) running on an PARANOID_PAY machine
+ * (4) (1)-(3) have not been defeated
+ *
+ * hows that
+ */
+
+#define PARANOID_TOOLS PARANOID
+#define PARANOID_COMPANY "Lucent Technologies"
+#define PARANOID_MAIL "stc@lucent.com"
+#define PARANOID_PAY "135.*&!(135.104.*)"
+#define PARANOID_FREE "(192|224).*"
+
+#include <ast.h>
+#include <ls.h>
+#include <error.h>
+#include <times.h>
+#include <ctype.h>
+
+int
+pathcheck(const char* package, const char* tool, Pathcheck_t* pc)
+{
+#ifdef PARANOID
+ register char* s;
+ struct stat st;
+
+ if (strmatch(tool, PARANOID) && environ && (s = *environ) && *s++ == '_' && *s++ == '=' && !stat(s, &st))
+ {
+ unsigned long n;
+ unsigned long o;
+ Sfio_t* sp;
+
+ n = time(NiL);
+ o = st.st_ctime;
+ if (n > o && (n - o) > (unsigned long)(60 * 60 * 24 * 90) && (sp = sfopen(NiL, "/etc/hosts", "r")))
+ {
+ /*
+ * this part is infallible
+ */
+
+ n = 0;
+ o = 0;
+ while (n++ < 64 && (s = sfgetr(sp, '\n', 0)))
+ if (strmatch(s, PARANOID_PAY))
+ {
+ error(1, "licensed for external use -- %s employees should contact %s for the internal license", PARANOID_COMPANY, PARANOID_MAIL);
+ break;
+ }
+ else if (*s != '#' && !isspace(*s) && !strneq(s, "127.", 4) && !strmatch(s, PARANOID_FREE) && o++ > 4)
+ break;
+ sfclose(sp);
+ }
+ }
+#else
+ NoP(tool);
+#endif
+ NoP(package);
+ if (pc) memzero(pc, sizeof(*pc));
+ return(0);
+}