New upstream version 0.76

1 files changed, 0 insertions, 390 deletions

diff --git a/libpam/pam_env.c b/libpam/pam_env.c
deleted file mode 100644
index 86a2889e..00000000
--- a/libpam/pam_env.c
+++ /dev/null
@@ -1,390 +0,0 @@
-/*
- * pam_env.c
- *
- * Copyright (c) Andrew G. Morgan <morgan@parc.power.net> 1996,1997
- * All rights reserved.
- *
- * This file was written from a "hint" provided by the people at SUN.
- * and the X/Open XSSO draft of March 1997.
- *
- * $Id$
- */
-
-#include <string.h>
-#include <stdlib.h>
-#ifdef sunos
-#define memmove(x,y,z) bcopy(y,x,z)
-#endif
-
-#include "pam_private.h"
-
-/* helper functions */
-
-#ifdef DEBUG
-static void _pam_dump_env(pam_handle_t *pamh)
-{
-    int i;
-
-    D(("Listing environment of pamh=%p", pamh));
-    D(("pamh->env = %p", pamh->env));
-    D(("environment entries used = %d [of %d allocated]"
-       , pamh->env->requested, pamh->env->entries));
-
-    for (i=0; i<pamh->env->requested; ++i) {
-	_pam_output_debug(">%-3d [%9p]:[%s]"
-			  , i, pamh->env->list[i], pamh->env->list[i]);
-    }
-    _pam_output_debug("*NOTE* the last item should be (nil)");
-}
-#else
-#define _pam_dump_env(x)
-#endif
-
-/*
- * Create the environment
- */
-
-int _pam_make_env(pam_handle_t *pamh)
-{
-    D(("called."));
-
-    IF_NO_PAMH("_pam_make_env", pamh, PAM_ABORT);
-
-    /*
-     * get structure memory
-     */
-
-    pamh->env = (struct pam_environ *) malloc(sizeof(struct pam_environ));
-    if (pamh->env == NULL) {
-	_pam_system_log(LOG_CRIT, "_pam_make_env: out of memory");
-	return PAM_BUF_ERR;
-    }
-
-    /*
-     * get list memory
-     */
-
-    pamh->env->list = (char **)calloc( PAM_ENV_CHUNK, sizeof(char *) );
-    if (pamh->env->list == NULL) {
-	_pam_system_log(LOG_CRIT, "_pam_make_env: no memory for list");
-	_pam_drop(pamh->env);
-	return PAM_BUF_ERR;
-    }
-
-    /*
-     * fill entries in pamh->env
-     */
-    
-    pamh->env->entries = PAM_ENV_CHUNK;
-    pamh->env->requested = 1;
-    pamh->env->list[0] = NULL;
-
-    _pam_dump_env(pamh);                    /* only active when debugging */
-
-    return PAM_SUCCESS;
-}
-
-/*
- * purge the environment
- */
-
-void _pam_drop_env(pam_handle_t *pamh)
-{
-    D(("called."));
-    IF_NO_PAMH("_pam_make_env", pamh, /* nothing to return */);
-
-    if (pamh->env != NULL) {
-	int i;
-	/* we will only purge the pamh->env->requested number of elements */
-
-	for (i=pamh->env->requested-1; i-- > 0; ) {
-	    D(("dropping #%3d>%s<", i, pamh->env->list[i]));
-	    _pam_overwrite(pamh->env->list[i]);          /* clean */
-	    _pam_drop(pamh->env->list[i]);              /* forget */
-	}
-	pamh->env->requested = 0;
-	pamh->env->entries = 0;
-	_pam_drop(pamh->env->list);                     /* forget */
-	_pam_drop(pamh->env);                           /* forget */
-    } else {
-	D(("no environment present in pamh?"));
-    }
-}
-
-/*
- * Return the item number of the given variable = first 'length' chars
- * of 'name_value'. Since this is a static function, it is safe to
- * assume its supplied arguments are well defined.
- */
-
-static int _pam_search_env(const struct pam_environ *env
-			   , const char *name_value, int length)
-{
-    int i;
-
-    for (i=env->requested-1; i-- > 0; ) {
-	if (strncmp(name_value,env->list[i],length) == 0
-	    && env->list[i][length] == '=') {
-
-	    return i;                                   /* Got it! */
-
-	}
-    }
-
-    return -1;                                          /* no luck */
-}
-
-/*
- * externally visible functions
- */
-
-/*
- *  pam_putenv(): Add/replace/delete a PAM-environment variable.
- *
- *  Add/replace:
- *      name_value = "NAME=VALUE" or "NAME=" (for empty value="\0")
- *
- *  delete:
- *      name_value = "NAME"
- */
-
-int pam_putenv(pam_handle_t *pamh, const char *name_value)
-{
-    int l2eq, item, retval;
-
-    D(("called."));
-    IF_NO_PAMH("pam_putenv", pamh, PAM_ABORT);
-
-    if (name_value == NULL) {
-	_pam_system_log(LOG_ERR, "pam_putenv: no variable indicated");
-	return PAM_PERM_DENIED;
-    }
-
-    /*
-     * establish if we are setting or deleting; scan for '='
-     */
-
-    for (l2eq=0; name_value[l2eq] && name_value[l2eq] != '='; ++l2eq);
-    if (l2eq <= 0) {
-	_pam_system_log(LOG_ERR, "pam_putenv: bad variable");
-	return PAM_BAD_ITEM;
-    }
-
-    /*
-     *  Look first for environment.
-     */
-
-    if (pamh->env == NULL || pamh->env->list == NULL) {
-	_pam_system_log(LOG_ERR, "pam_putenv: no env%s found",
-		       pamh->env == NULL ? "":"-list");
-	return PAM_ABORT;
-    }
-
-    /* find the item to replace */
-
-    item = _pam_search_env(pamh->env, name_value, l2eq);
-
-    if (name_value[l2eq]) {                     /* (re)setting */
-
-	if (item == -1) {                      /* new variable */
-	    D(("adding item: %s", name_value));
-	    /* enough space? */
-	    if (pamh->env->entries <= pamh->env->requested) {
-		register int i;
-		register char **tmp;
-
-		/* get some new space */
-		tmp = calloc( pamh->env->entries + PAM_ENV_CHUNK
-				     , sizeof(char *) );
-		if (tmp == NULL) {
-		    /* nothing has changed - old env intact */
-		    _pam_system_log(LOG_CRIT,
-				    "pam_putenv: cannot grow environment");
-		    return PAM_BUF_ERR;
-		}
-
-		/* copy old env-item pointers/forget old */
-		for (i=0; i<pamh->env->requested; ++i) {
-		    tmp[i] = pamh->env->list[i];
-		    pamh->env->list[i] = NULL;
-		}
-
-		/* drop old list and replace with new */
-		_pam_drop(pamh->env->list);
-		pamh->env->list = tmp;
-		pamh->env->entries += PAM_ENV_CHUNK;
-
-		D(("resized env list"));
-		_pam_dump_env(pamh);              /* only when debugging */
-	    }
-
-	    item = pamh->env->requested-1;        /* old last item (NULL) */
-
-	    /* add a new NULL entry at end; increase counter */
-	    pamh->env->list[pamh->env->requested++] = NULL;
-	    
-	} else {                                /* replace old */
-	    D(("replacing item: %s\n          with: %s"
-	       , pamh->env->list[item], name_value));
-	    _pam_overwrite(pamh->env->list[item]);
-	    _pam_drop(pamh->env->list[item]);
-	}
-
-	/*
-	 * now we have a place to put the new env-item, insert at 'item'
-	 */
-
-	pamh->env->list[item] = _pam_strdup(name_value);
-	if (pamh->env->list[item] != NULL) {
-	    _pam_dump_env(pamh);                   /* only when debugging */
-	    return PAM_SUCCESS;
-	}
-
-	/* something went wrong; we should delete the item - fall through */
-
-	retval = PAM_BUF_ERR;                        /* an error occurred */
-    } else {
-	retval = PAM_SUCCESS;                      /* we requested delete */
-    }
-
-    /* getting to here implies we are deleting an item */
-
-    if (item < 0) {
-	_pam_system_log(LOG_ERR, "pam_putenv: delete non-existent entry; %s",
-		       name_value);
-	return PAM_BAD_ITEM;
-    }
-
-    /*
-     * remove item: purge memory; reset counter; resize [; display-env]
-     */
-
-    D(("deleting: env#%3d:[%s]", item, pamh->env->list[item]));
-    _pam_overwrite(pamh->env->list[item]);
-    _pam_drop(pamh->env->list[item]);
-    --(pamh->env->requested);
-    D(("mmove: item[%d]+%d -> item[%d]"
-       , item+1, ( pamh->env->requested - item ), item));
-    (void) memmove(&pamh->env->list[item], &pamh->env->list[item+1]
-		   , ( pamh->env->requested - item )*sizeof(char *) );
-
-    _pam_dump_env(pamh);                   /* only when debugging */
-
-    /*
-     * deleted.
-     */
-
-    return retval;
-}
-
-/*
- *  Return the value of the requested environment variable
- */
-
-const char *pam_getenv(pam_handle_t *pamh, const char *name)
-{
-    int item;
-
-    D(("called."));
-    IF_NO_PAMH("pam_getenv", pamh, NULL);
-
-    if (name == NULL) {
-	_pam_system_log(LOG_ERR, "pam_getenv: no variable indicated");
-	return NULL;
-    }
-
-    if (pamh->env == NULL || pamh->env->list == NULL) {
-	_pam_system_log(LOG_ERR, "pam_getenv: no env%s found",
-			pamh->env == NULL ? "":"-list" );
-	return NULL;
-    }
-
-    /* find the requested item */
-
-    item = _pam_search_env(pamh->env, name, strlen(name));
-    if (item != -1) {
-
-	D(("env-item: %s, found!", name));
-	return (pamh->env->list[item] + 1 + strlen(name));
-
-    } else {
-
-	D(("env-item: %s, not found", name));
-	return NULL;
-
-    }
-}
-
-static char **_copy_env(pam_handle_t *pamh)
-{
-    char **dump;
-    int i = pamh->env->requested;          /* reckon size of environment */
-    char *const *env = pamh->env->list;
-
-    D(("now get some memory for dump"));
-
-    /* allocate some memory for this (plus the null tail-pointer) */
-    dump = (char **) calloc(i, sizeof(char *));
-    D(("dump = %p", dump));
-    if (dump == NULL) {
-	return NULL;
-    }
-
-    /* now run through entries and copy the variables over */
-    dump[--i] = NULL;
-    while (i-- > 0) {
-	D(("env[%d]=`%s'", i,env[i]));
-	dump[i] = _pam_strdup(env[i]);
-	D(("->dump[%d]=`%s'", i,dump[i]));
-	if (dump[i] == NULL) {
-	    /* out of memory */
-
-	    while (dump[++i]) {
-		_pam_overwrite(dump[i]);
-		_pam_drop(dump[i]);
-	    }
-	    return NULL;
-	}
-    }
-
-    env = NULL;                             /* forget now */
-
-    /* return transcribed environment */
-    return dump;
-}
-
-char **pam_getenvlist(pam_handle_t *pamh)
-{
-    int i;
-
-    D(("called."));
-    IF_NO_PAMH("pam_getenvlist", pamh, NULL);
-
-    if (pamh->env == NULL || pamh->env->list == NULL) {
-	_pam_system_log(LOG_ERR, "pam_getenvlist: no env%s found",
-			pamh->env == NULL ? "":"-list" );
-	return NULL;
-    }
-
-    /* some quick checks */
-
-    if (pamh->env->requested > pamh->env->entries) {
-	_pam_system_log(LOG_ERR, "pam_getenvlist: environment corruption");
-	_pam_dump_env(pamh);                 /* only active when debugging */
-	return NULL;
-    }
-
-    for (i=pamh->env->requested-1; i-- > 0; ) {
-	if (pamh->env->list[i] == NULL) {
-	    _pam_system_log(LOG_ERR, "pam_getenvlist: environment broken");
-	    _pam_dump_env(pamh);              /* only active when debugging */
-	    return NULL;          /* somehow we've broken the environment!? */
-	}
-    }
-
-    /* Seems fine; copy environment */
-
-    _pam_dump_env(pamh);                    /* only active when debugging */
-
-    return _copy_env(pamh);
-}