diff options
author | Igor Pashev <pashev.igor@gmail.com> | 2012-06-24 22:28:35 +0000 |
---|---|---|
committer | Igor Pashev <pashev.igor@gmail.com> | 2012-06-24 22:28:35 +0000 |
commit | 3950ffe2a485479f6561c27364d3d7df5a21d124 (patch) | |
tree | 468c6e14449d1b1e279222ec32f676b0311917d2 /src/lib/libast/path/pathcheck.c | |
download | ksh-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.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/src/lib/libast/path/pathcheck.c b/src/lib/libast/path/pathcheck.c new file mode 100644 index 0000000..4ff79f6 --- /dev/null +++ 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); +} |