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Diffstat (limited to 'modules/pam_env/pam_env.c')
-rw-r--r--modules/pam_env/pam_env.c168
1 files changed, 84 insertions, 84 deletions
diff --git a/modules/pam_env/pam_env.c b/modules/pam_env/pam_env.c
index 2c93ebab..d05e33f8 100644
--- a/modules/pam_env/pam_env.c
+++ b/modules/pam_env/pam_env.c
@@ -4,7 +4,7 @@
* $Id$
*
* Written by Dave Kinchlea <kinch@kinch.ark.com> 1997/01/31
- * Inspired by Andrew Morgan <morgan@kernel.org>, who also supplied the
+ * Inspired by Andrew Morgan <morgan@kernel.org>, who also supplied the
* template for this file (via pam_mail)
*/
@@ -59,21 +59,21 @@ typedef struct var {
#define GOOD_LINE 0
#define BAD_LINE 100 /* This must be > the largest PAM_* error code */
-#define DEFINE_VAR 101
+#define DEFINE_VAR 101
#define UNDEFINE_VAR 102
#define ILLEGAL_VAR 103
static int _assemble_line(FILE *, char *, int);
static int _parse_line(char *, VAR *);
static int _check_var(pam_handle_t *, VAR *); /* This is the real meat */
-static void _clean_var(VAR *);
+static void _clean_var(VAR *);
static int _expand_arg(pam_handle_t *, char **);
static const char * _pam_get_item_byname(pam_handle_t *, const char *);
static int _define_var(pam_handle_t *, VAR *);
static int _undefine_var(pam_handle_t *, VAR *);
/* This is a flag used to designate an empty string */
-static char quote='Z';
+static char quote='Z';
/* some syslogging */
@@ -141,7 +141,7 @@ static int _parse_config_file(pam_handle_t *pamh, int ctrl, char **conffile)
const char *file;
char buffer[BUF_SIZE];
FILE *conf;
- VAR Var, *var=&Var;
+ VAR Var, *var=&Var;
var->name=NULL; var->defval=NULL; var->override=NULL;
D(("Called."));
@@ -154,13 +154,13 @@ static int _parse_config_file(pam_handle_t *pamh, int ctrl, char **conffile)
D(("Config file name is: %s", file));
- /*
- * Lets try to open the config file, parse it and process
+ /*
+ * Lets try to open the config file, parse it and process
* any variables found.
*/
if ((conf = fopen(file,"r")) == NULL) {
- _log_err(LOG_ERR, "Unable to open config file: %s",
+ _log_err(LOG_ERR, "Unable to open config file: %s",
strerror(errno));
return PAM_IGNORE;
}
@@ -176,19 +176,19 @@ static int _parse_config_file(pam_handle_t *pamh, int ctrl, char **conffile)
retval = _check_var(pamh, var);
if (DEFINE_VAR == retval) {
- retval = _define_var(pamh, var);
+ retval = _define_var(pamh, var);
} else if (UNDEFINE_VAR == retval) {
- retval = _undefine_var(pamh, var);
- }
- }
- if (PAM_SUCCESS != retval && ILLEGAL_VAR != retval
+ retval = _undefine_var(pamh, var);
+ }
+ }
+ if (PAM_SUCCESS != retval && ILLEGAL_VAR != retval
&& BAD_LINE != retval && PAM_BAD_ITEM != retval) break;
-
- _clean_var(var);
+
+ _clean_var(var);
} /* while */
-
+
(void) fclose(conf);
/* tidy up */
@@ -272,7 +272,7 @@ static int _parse_env_file(pam_handle_t *pamh, int ctrl, char **env_file)
break;
}
}
-
+
(void) fclose(conf);
/* tidy up */
@@ -367,41 +367,41 @@ static int _assemble_line(FILE *f, char *buffer, int buf_len)
static int _parse_line(char *buffer, VAR *var)
{
- /*
- * parse buffer into var, legal syntax is
+ /*
+ * parse buffer into var, legal syntax is
* VARIABLE [DEFAULT=[[string]] [OVERRIDE=[value]]
*
- * Any other options defined make this a bad line,
+ * Any other options defined make this a bad line,
* error logged and no var set
*/
-
+
int length, quoteflg=0;
- char *ptr, **valptr, *tmpptr;
-
+ char *ptr, **valptr, *tmpptr;
+
D(("Called buffer = <%s>", buffer));
length = strcspn(buffer," \t\n");
-
+
if ((var->name = malloc(length + 1)) == NULL) {
_log_err(LOG_ERR, "Couldn't malloc %d bytes", length+1);
return PAM_BUF_ERR;
}
-
- /*
- * The first thing on the line HAS to be the variable name,
+
+ /*
+ * The first thing on the line HAS to be the variable name,
* it may be the only thing though.
*/
strncpy(var->name, buffer, length);
var->name[length] = '\0';
D(("var->name = <%s>, length = %d", var->name, length));
- /*
+ /*
* Now we check for arguments, we only support two kinds and ('cause I am lazy)
* each one can actually be listed any number of times
*/
-
+
ptr = buffer+length;
- while ((length = strspn(ptr, " \t")) > 0) {
+ while ((length = strspn(ptr, " \t")) > 0) {
ptr += length; /* remove leading whitespace */
D((ptr));
if (strncmp(ptr,"DEFAULT=",8) == 0) {
@@ -417,18 +417,18 @@ static int _parse_line(char *buffer, VAR *var)
_log_err(LOG_ERR, "Unrecognized Option: %s - ignoring line", ptr);
return BAD_LINE;
}
-
+
if ('"' != *ptr) { /* Escaped quotes not supported */
length = strcspn(ptr, " \t\n");
tmpptr = ptr+length;
} else {
- tmpptr = strchr(++ptr, '"');
+ tmpptr = strchr(++ptr, '"');
if (!tmpptr) {
D(("Unterminated quoted string: %s", ptr-1));
_log_err(LOG_ERR, "Unterminated quoted string: %s", ptr-1);
return BAD_LINE;
}
- length = tmpptr - ptr;
+ length = tmpptr - ptr;
if (*++tmpptr && ' ' != *tmpptr && '\t' != *tmpptr && '\n' != *tmpptr) {
D(("Quotes must cover the entire string: <%s>", ptr));
_log_err(LOG_ERR, "Quotes must cover the entire string: <%s>", ptr);
@@ -449,11 +449,11 @@ static int _parse_line(char *buffer, VAR *var)
}
ptr = tmpptr; /* Start the search where we stopped */
} /* while */
-
- /*
+
+ /*
* The line is parsed, all is well.
*/
-
+
D(("Exit."));
ptr = NULL; tmpptr = NULL; valptr = NULL;
return GOOD_LINE;
@@ -461,16 +461,16 @@ static int _parse_line(char *buffer, VAR *var)
static int _check_var(pam_handle_t *pamh, VAR *var)
{
- /*
- * Examine the variable and determine what action to take.
+ /*
+ * Examine the variable and determine what action to take.
* Returns DEFINE_VAR, UNDEFINE_VAR depending on action to take
* or a PAM_* error code if passed back from other routines
*
* if no DEFAULT provided, the empty string is assumed
* if no OVERRIDE provided, the empty string is assumed
- * if DEFAULT= and OVERRIDE evaluates to the empty string,
+ * if DEFAULT= and OVERRIDE evaluates to the empty string,
* this variable should be undefined
- * if DEFAULT="" and OVERRIDE evaluates to the empty string,
+ * if DEFAULT="" and OVERRIDE evaluates to the empty string,
* this variable should be defined with no value
* if OVERRIDE=value and value turns into the empty string, DEFAULT is used
*
@@ -498,18 +498,18 @@ static int _check_var(pam_handle_t *pamh, VAR *var)
}
/* Now its easy */
-
- if (var->override && *(var->override) && &quote != var->override) {
+
+ if (var->override && *(var->override) && &quote != var->override) {
/* if there is a non-empty string in var->override, we use it */
D(("OVERRIDE variable <%s> being used: <%s>", var->name, var->override));
var->value = var->override;
retval = DEFINE_VAR;
} else {
-
+
var->value = var->defval;
if (&quote == var->defval) {
- /*
- * This means that the empty string was given for defval value
+ /*
+ * This means that the empty string was given for defval value
* which indicates that a variable should be defined with no value
*/
*var->defval = '\0';
@@ -531,12 +531,12 @@ static int _check_var(pam_handle_t *pamh, VAR *var)
static int _expand_arg(pam_handle_t *pamh, char **value)
{
const char *orig=*value, *tmpptr=NULL;
- char *ptr; /*
- * Sure would be nice to use tmpptr but it needs to be
+ char *ptr; /*
+ * Sure would be nice to use tmpptr but it needs to be
* a constant so that the compiler will shut up when I
* call pam_getenv and _pam_get_item_byname -- sigh
*/
-
+
/* No unexpanded variable can be bigger than BUF_SIZE */
char type, tmpval[BUF_SIZE];
@@ -546,11 +546,11 @@ static int _expand_arg(pam_handle_t *pamh, char **value)
D(("Remember to initialize tmp!"));
memset(tmp, 0, MAX_ENV);
- /*
+ /*
* (possibly non-existent) environment variables can be used as values
* by prepending a "$" and wrapping in {} (ie: ${HOST}), can escape with "\"
- * (possibly non-existent) PAM items can be used as values
- * by prepending a "@" and wrapping in {} (ie: @{PAM_RHOST}, can escape
+ * (possibly non-existent) PAM items can be used as values
+ * by prepending a "@" and wrapping in {} (ie: @{PAM_RHOST}, can escape
*
*/
D(("Expanding <%s>",orig));
@@ -559,7 +559,7 @@ static int _expand_arg(pam_handle_t *pamh, char **value)
++orig;
if ('$' != *orig && '@' != *orig) {
D(("Unrecognized escaped character: <%c> - ignoring", *orig));
- _log_err(LOG_ERR, "Unrecognized escaped character: <%c> - ignoring",
+ _log_err(LOG_ERR, "Unrecognized escaped character: <%c> - ignoring",
*orig);
} else if ((strlen(tmp) + 1) < MAX_ENV) {
tmp[strlen(tmp)] = *orig++; /* Note the increment */
@@ -570,7 +570,7 @@ static int _expand_arg(pam_handle_t *pamh, char **value)
tmp, tmpptr);
}
continue;
- }
+ }
if ('$' == *orig || '@' == *orig) {
if ('{' != *(orig+1)) {
D(("Expandable variables must be wrapped in {}"
@@ -586,7 +586,7 @@ static int _expand_arg(pam_handle_t *pamh, char **value)
type = *orig;
orig+=2; /* skip the ${ or @{ characters */
ptr = strchr(orig, '}');
- if (ptr) {
+ if (ptr) {
*ptr++ = '\0';
} else {
D(("Unterminated expandable variable: <%s>", orig-2));
@@ -596,18 +596,18 @@ static int _expand_arg(pam_handle_t *pamh, char **value)
strncpy(tmpval, orig, sizeof(tmpval));
tmpval[sizeof(tmpval)-1] = '\0';
orig=ptr;
- /*
- * so, we know we need to expand tmpval, it is either
+ /*
+ * so, we know we need to expand tmpval, it is either
* an environment variable or a PAM_ITEM. type will tell us which
*/
switch (type) {
-
+
case '$':
D(("Expanding env var: <%s>",tmpval));
tmpptr = pam_getenv(pamh, tmpval);
D(("Expanded to <%s>", tmpptr));
break;
-
+
case '@':
D(("Expanding pam item: <%s>",tmpval));
tmpptr = _pam_get_item_byname(pamh, tmpval);
@@ -619,7 +619,7 @@ static int _expand_arg(pam_handle_t *pamh, char **value)
_log_err(LOG_CRIT, "Impossible error, type == <%c>", type);
return PAM_ABORT;
} /* switch */
-
+
if (tmpptr) {
if ((strlen(tmp) + strlen(tmpptr)) < MAX_ENV) {
strcat(tmp, tmpptr);
@@ -659,13 +659,13 @@ static int _expand_arg(pam_handle_t *pamh, char **value)
static const char * _pam_get_item_byname(pam_handle_t *pamh, const char *name)
{
- /*
+ /*
* This function just allows me to use names as given in the config
* file and translate them into the appropriate PAM_ITEM macro
*/
int item;
- const char *itemval;
+ const void *itemval;
D(("Called."));
if (strcmp(name, "PAM_USER") == 0) {
@@ -683,8 +683,8 @@ static const char * _pam_get_item_byname(pam_handle_t *pamh, const char *name)
_log_err(LOG_ERR, "Unknown PAM_ITEM: <%s>", name);
return NULL;
}
-
- if (pam_get_item(pamh, item, (const void **)&itemval) != PAM_SUCCESS) {
+
+ if (pam_get_item(pamh, item, &itemval) != PAM_SUCCESS) {
D(("pam_get_item failed"));
return NULL; /* let pam_get_item() log the error */
}
@@ -695,10 +695,10 @@ static const char * _pam_get_item_byname(pam_handle_t *pamh, const char *name)
static int _define_var(pam_handle_t *pamh, VAR *var)
{
/* We have a variable to define, this is a simple function */
-
+
char *envvar;
int size, retval=PAM_SUCCESS;
-
+
D(("Called."));
size = strlen(var->name)+strlen(var->value)+2;
if ((envvar = malloc(size)) == NULL) {
@@ -716,7 +716,7 @@ static int _define_var(pam_handle_t *pamh, VAR *var)
static int _undefine_var(pam_handle_t *pamh, VAR *var)
{
/* We have a variable to undefine, this is a simple function */
-
+
D(("Called and exit."));
return pam_putenv(pamh, var->name);
}
@@ -724,13 +724,13 @@ static int _undefine_var(pam_handle_t *pamh, VAR *var)
static void _clean_var(VAR *var)
{
if (var->name) {
- free(var->name);
+ free(var->name);
}
if (var->defval && (&quote != var->defval)) {
- free(var->defval);
+ free(var->defval);
}
if (var->override && (&quote != var->override)) {
- free(var->override);
+ free(var->override);
}
var->name = NULL;
var->value = NULL; /* never has memory specific to it */
@@ -746,12 +746,12 @@ static void _clean_var(VAR *var)
PAM_EXTERN
int pam_sm_authenticate(pam_handle_t *pamh, int flags, int argc,
const char **argv)
-{
+{
return PAM_IGNORE;
}
-PAM_EXTERN
-int pam_sm_setcred(pam_handle_t *pamh, int flags, int argc,
+PAM_EXTERN
+int pam_sm_setcred(pam_handle_t *pamh, int flags, int argc,
const char **argv)
{
int retval, ctrl, readenv=DEFAULT_READ_ENVFILE;
@@ -760,7 +760,7 @@ int pam_sm_setcred(pam_handle_t *pamh, int flags, int argc,
/*
* this module sets environment variables read in from a file
*/
-
+
D(("Called."));
ctrl = _pam_parse(flags, argc, argv, &conf_file, &env_file, &readenv);
@@ -770,40 +770,40 @@ int pam_sm_setcred(pam_handle_t *pamh, int flags, int argc,
retval = _parse_env_file(pamh, ctrl, &env_file);
/* indicate success or failure */
-
+
D(("Exit."));
return retval;
}
-PAM_EXTERN
-int pam_sm_acct_mgmt(pam_handle_t *pamh, int flags, int argc,
+PAM_EXTERN
+int pam_sm_acct_mgmt(pam_handle_t *pamh, int flags, int argc,
const char **argv)
{
_log_err(LOG_NOTICE, "pam_sm_acct_mgmt called inappropriatly");
return PAM_SERVICE_ERR;
}
-
+
PAM_EXTERN
int pam_sm_open_session(pam_handle_t *pamh,int flags,int argc
,const char **argv)
{
int retval, ctrl, readenv=DEFAULT_READ_ENVFILE;
char *conf_file=NULL, *env_file=NULL;
-
+
/*
* this module sets environment variables read in from a file
*/
-
+
D(("Called."));
ctrl = _pam_parse(flags, argc, argv, &conf_file, &env_file, &readenv);
-
+
retval = _parse_config_file(pamh, ctrl, &conf_file);
-
+
if(readenv && retval == PAM_SUCCESS)
retval = _parse_env_file(pamh, ctrl, &env_file);
/* indicate success or failure */
-
+
D(("Exit."));
return retval;
}
@@ -816,8 +816,8 @@ int pam_sm_close_session(pam_handle_t *pamh,int flags,int argc,
return PAM_SUCCESS;
}
-PAM_EXTERN
-int pam_sm_chauthtok(pam_handle_t *pamh, int flags, int argc,
+PAM_EXTERN
+int pam_sm_chauthtok(pam_handle_t *pamh, int flags, int argc,
const char **argv)
{
_log_err(LOG_NOTICE, "pam_sm_chauthtok called inappropriatly");
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-20 03:45:20 +0000