Issue #10710: `Misc/setuid-prog.c` is removed from the source tree.

1 files changed, 0 insertions, 176 deletions

diff --git a/Misc/setuid-prog.c b/Misc/setuid-prog.c
deleted file mode 100644
index 3785d99..0000000
--- a/Misc/setuid-prog.c
+++ /dev/null
@@ -1,176 +0,0 @@
-/*
-   Template for a setuid program that calls a script.
-
-   The script should be in an unwritable directory and should itself
-   be unwritable.  In fact all parent directories up to the root
-   should be unwritable.  The script must not be setuid, that's what
-   this program is for.
-
-   This is a template program.  You need to fill in the name of the
-   script that must be executed.  This is done by changing the
-   definition of FULL_PATH below.
-
-   There are also some rules that should be adhered to when writing
-   the script itself.
-
-   The first and most important rule is to never, ever trust that the
-   user of the program will behave properly.  Program defensively.
-   Check your arguments for reasonableness.  If the user is allowed to
-   create files, check the names of the files.  If the program depends
-   on argv[0] for the action it should perform, check it.
-
-   Assuming the script is a Bourne shell script, the first line of the
-   script should be
-    #!/bin/sh -
-   The - is important, don't omit it.  If you're using esh, the first
-   line should be
-    #!/usr/local/bin/esh -f
-   and for ksh, the first line should be
-    #!/usr/local/bin/ksh -p
-   The script should then set the variable IFS to the string
-   consisting of <space>, <tab>, and <newline>.  After this (*not*
-   before!), the PATH variable should be set to a reasonable value and
-   exported.  Do not expect the PATH to have a reasonable value, so do
-   not trust the old value of PATH.  You should then set the umask of
-   the program by calling
-    umask 077 # or 022 if you want the files to be readable
-   If you plan to change directories, you should either unset CDPATH
-   or set it to a good value.  Setting CDPATH to just ``.'' (dot) is a
-   good idea.
-   If, for some reason, you want to use csh, the first line should be
-    #!/bin/csh -fb
-   You should then set the path variable to something reasonable,
-   without trusting the inherited path.  Here too, you should set the
-   umask using the command
-    umask 077 # or 022 if you want the files to be readable
-*/
-
-#include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <string.h>
-
-/* CONFIGURATION SECTION */
-
-#ifndef FULL_PATH       /* so that this can be specified from the Makefile */
-/* Uncomment the following line:
-#define FULL_PATH       "/full/path/of/script"
-* Then comment out the #error line. */
-#error "You must define FULL_PATH somewhere"
-#endif
-#ifndef UMASK
-#define UMASK           077
-#endif
-
-/* END OF CONFIGURATION SECTION */
-
-#if defined(__STDC__) && defined(__sgi)
-#define environ _environ
-#endif
-
-/* don't change def_IFS */
-char def_IFS[] = "IFS= \t\n";
-/* you may want to change def_PATH, but you should really change it in */
-/* your script */
-#ifdef __sgi
-char def_PATH[] = "PATH=/usr/bsd:/usr/bin:/bin:/usr/local/bin:/usr/sbin";
-#else
-char def_PATH[] = "PATH=/usr/ucb:/usr/bin:/bin:/usr/local/bin";
-#endif
-/* don't change def_CDPATH */
-char def_CDPATH[] = "CDPATH=.";
-/* don't change def_ENV */
-char def_ENV[] = "ENV=:";
-
-/*
-   This function changes all environment variables that start with LD_
-   into variables that start with XD_.  This is important since we
-   don't want the script that is executed to use any funny shared
-   libraries.
-
-   The other changes to the environment are, strictly speaking, not
-   needed here.  They can safely be done in the script.  They are done
-   here because we don't trust the script writer (just like the script
-   writer shouldn't trust the user of the script).
-   If IFS is set in the environment, set it to space,tab,newline.
-   If CDPATH is set in the environment, set it to ``.''.
-   Set PATH to a reasonable default.
-*/
-void
-clean_environ(void)
-{
-    char **p;
-    extern char **environ;
-
-    for (p = environ; *p; p++) {
-        if (strncmp(*p, "LD_", 3) == 0)
-            **p = 'X';
-        else if (strncmp(*p, "_RLD", 4) == 0)
-            **p = 'X';
-        else if (strncmp(*p, "PYTHON", 6) == 0)
-            **p = 'X';
-        else if (strncmp(*p, "IFS=", 4) == 0)
-            *p = def_IFS;
-        else if (strncmp(*p, "CDPATH=", 7) == 0)
-            *p = def_CDPATH;
-        else if (strncmp(*p, "ENV=", 4) == 0)
-            *p = def_ENV;
-    }
-    putenv(def_PATH);
-}
-
-int
-main(int argc, char **argv)
-{
-    struct stat statb;
-    gid_t egid = getegid();
-    uid_t euid = geteuid();
-
-    /*
-       Sanity check #1.
-       This check should be made compile-time, but that's not possible.
-       If you're sure that you specified a full path name for FULL_PATH,
-       you can omit this check.
-    */
-    if (FULL_PATH[0] != '/') {
-        fprintf(stderr, "%s: %s is not a full path name\n", argv[0],
-            FULL_PATH);
-        fprintf(stderr, "You can only use this wrapper if you\n");
-        fprintf(stderr, "compile it with an absolute path.\n");
-        exit(1);
-    }
-
-    /*
-       Sanity check #2.
-       Check that the owner of the script is equal to either the
-       effective uid or the super user.
-    */
-    if (stat(FULL_PATH, &statb) < 0) {
-        perror("stat");
-        exit(1);
-    }
-    if (statb.st_uid != 0 && statb.st_uid != euid) {
-        fprintf(stderr, "%s: %s has the wrong owner\n", argv[0],
-            FULL_PATH);
-        fprintf(stderr, "The script should be owned by root,\n");
-        fprintf(stderr, "and shouldn't be writable by anyone.\n");
-        exit(1);
-    }
-
-    if (setregid(egid, egid) < 0)
-        perror("setregid");
-    if (setreuid(euid, euid) < 0)
-        perror("setreuid");
-
-    clean_environ();
-
-    umask(UMASK);
-
-    while (**argv == '-')       /* don't let argv[0] start with '-' */
-        (*argv)++;
-    execv(FULL_PATH, argv);
-    fprintf(stderr, "%s: could not execute the script\n", argv[0]);
-    exit(1);
-}