1 files changed, 206 insertions, 0 deletions
diff --git a/conf/pam_conv1/pam_conv_y.y b/conf/pam_conv1/pam_conv_y.y
new file mode 100644
index 0000000..c971abf
--- /dev/null
+++ b/conf/pam_conv1/pam_conv_y.y
@@ -0,0 +1,206 @@
+%{
+
+/*
+ * $Id$
+ *
+ * Copyright (c) Andrew G. Morgan 1997 <morgan@parc.power.net>
+ *
+ * This file is covered by the Linux-PAM License (which should be
+ * distributed with this file.)
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <string.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <sys/stat.h>
+
+    extern int yylex(void);
+
+    int current_line=1;
+    extern char *yytext;
+
+/* XXX - later we'll change this to be the specific conf file(s) */
+#define newpamf stderr
+
+#define PAM_D                "./pam.d"
+#define PAM_D_MODE           0755
+#define PAM_D_MAGIC_HEADER   \
+    "#%%PAM-1.0\n" \
+    "#[For version 1.0 syntax, the above header is optional]\n"
+
+#define PAM_D_FILE_FMT       PAM_D "/%s"
+
+    const char *old_to_new_ctrl_flag(const char *old);
+    void yyerror(const char *format, ...);
+%}
+
+%union {
+    int def;
+    char *string;
+}
+
+%token NL EOFILE TOK
+
+%type <string> tok path tokenls
+
+%start complete
+
+%%
+
+complete
+:
+| complete NL
+| complete line
+| complete EOFILE {
+    return 0;
+}
+;
+
+line
+: tok tok tok path tokenls NL {
+    char *filename;
+    FILE *conf;
+    int i;
+
+    /* make sure we have lower case */
+    for (i=0; $1[i]; ++i) {
+	$1[i] = tolower($1[i]);
+    }
+
+    /* $1 = service-name */
+    yyerror("Appending to " PAM_D "/%s", $1);
+
+    filename = malloc(strlen($1) + sizeof(PAM_D) + 6);
+    sprintf(filename, PAM_D_FILE_FMT, $1);
+    conf = fopen(filename, "r");
+    if (conf == NULL) {
+	/* new file */
+	conf = fopen(filename, "w");
+	if (conf != NULL) {
+	    fprintf(conf, PAM_D_MAGIC_HEADER);
+	    fprintf(conf,
+		    "#\n"
+		    "# The PAM configuration file for the `%s' service\n"
+		    "#\n", $1);
+	}
+    } else {
+	fclose(conf);
+	conf = fopen(filename, "a");
+    }
+    if (conf == NULL) {
+	yyerror("trouble opening %s - aborting", filename);
+	exit(1);
+    }
+    free(filename);
+
+    /* $2 = module-type */
+    fprintf(conf, "%-10s", $2);
+    free($2);
+
+    /* $3 = required etc. */
+    {
+	const char *trans;
+
+	trans = old_to_new_ctrl_flag($3);
+	free($3);
+	fprintf(conf, " %-10s", trans);
+    }
+
+    /* $4 = module-path */
+    fprintf(conf, " %s", $4);
+    free($4);
+
+    /* $5 = arguments */
+    if ($5 != NULL) {
+	fprintf(conf, " \\\n\t\t%s", $5);
+	free($5);
+    }
+
+    /* end line */
+    fprintf(conf, "\n");
+
+    fclose(conf);
+}
+| error NL {
+    yyerror("malformed line");
+}
+;
+
+tokenls
+: {
+    $$=NULL;
+}
+| tokenls tok {
+    int len;
+
+    if ($1) {
+	len = strlen($1) + strlen($2) + 2;
+	$$ = malloc(len);
+	sprintf($$,"%s %s",$1,$2);
+	free($1);
+	free($2);
+    } else {
+	$$ = $2;
+    }
+}
+;
+
+path
+: TOK {
+    /* XXX - this could be used to check if file present */
+    $$ = strdup(yytext);
+}
+
+tok
+: TOK {
+    $$ = strdup(yytext);
+}
+
+%%
+
+const char *old_to_new_ctrl_flag(const char *old)
+{
+    static const char *clist[] = {
+	"requisite",
+	"required",
+	"sufficient",
+	"optional",
+	NULL,
+    };
+    int i;
+
+    for (i=0; clist[i]; ++i) {
+	if (strcasecmp(clist[i], old) == 0) {
+	    break;
+	}
+    }
+
+    return clist[i];
+}
+
+void yyerror(const char *format, ...)
+{
+    va_list args;
+
+    fprintf(stderr, "line %d: ", current_line);
+    va_start(args, format);
+    vfprintf(stderr, format, args);
+    va_end(args);
+    fprintf(stderr, "\n");
+}
+
+int main(void)
+{
+    if (mkdir(PAM_D, PAM_D_MODE) != 0) {
+	yyerror(PAM_D " already exists.. aborting");
+	exit(1);
+    }
+    yyparse();
+    exit(0);
+}