release 3.4

https://sourceforge.net/projects/elilo/files/elilo/elilo-3.4/
2004-02-23 08:11:30 -05:00 · 2004-02-23 08:11:30 -05:00 · fb6ce0d596
commit fb6ce0d596
100 changed files with 20247 additions and 0 deletions
--- a/vars.c
+++ b/vars.c
@ -0,0 +1,130 @@
+/*
+ *  Copyright (C) 2001-2003 Hewlett-Packard Co.
+ *	Contributed by Stephane Eranian <eranian@hpl.hp.com>
+ *
+ *  Copyright (C) 2001 Silicon Graphics, Inc.
+ *	Contributed by Brent Casavant <bcasavan@sgi.com>
+ *
+ * This file is part of the ELILO, the EFI Linux boot loader.
+ *
+ *  ELILO is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2, or (at your option)
+ *  any later version.
+ *
+ *  ELILO is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with ELILO; see the file COPYING.  If not, write to the Free
+ *  Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+ *  02111-1307, USA.
+ *
+ * Please check out the elilo.txt for complete documentation on how
+ * to use this program.
+ */
+#include <efi.h>
+#include <efilib.h>
+
+/*
+ * A variable name is 1 character long and case sensitive. So 
+ * we actually have 52 (26*2) possible variables.
+ */
+#define MAX_VARIABLES		(26<<1)
+#define MAX_VARIABLE_LENGTH	128
+#define VAR_IDX(a)		(((a) >= 'a' && (a) <= 'z') ? 26-'a'+(a) : (a)-'A')
+#define IDX_VAR(i)		((i) < 26 ? 'A'+(i) : 'a'+ ((i)-26))
+
+typedef struct {
+	CHAR16	value[MAX_VARIABLE_LENGTH];
+} elilo_var_t;
+
+static elilo_var_t vars[MAX_VARIABLES];	/* set of variables */
+
+INTN
+set_var(CHAR16 v, CHAR16 *value)
+{
+	/* invalid variable name */
+	if (v < 'A' || (v > 'Z' && v < 'a') || v > 'z') return -1;
+
+	StrCpy(vars[VAR_IDX(v)].value, value);
+	return 0;
+}
+
+CHAR16 *
+get_var(CHAR16 v)
+{
+	/* invalid variable name */
+	if (v < L'A' || (v > L'Z' && v < L'a') || v > L'z') return NULL;
+
+	return vars[VAR_IDX(v)].value;
+}
+
+
+VOID
+print_vars(VOID)
+{
+	INTN i;
+	UINTN cnt = 0;
+
+	for(i=0; i < MAX_VARIABLES; i++) {
+		if (vars[i].value[0]) {
+			cnt++;
+			Print(L"%c = \"%s\"\n", IDX_VAR(i), vars[i].value);
+		}
+	}
+	if (cnt == 0) Print(L"no variable defined\n");
+}
+
+
+INTN
+subst_vars(CHAR16 *in, CHAR16 *out, INTN maxlen)
+{
+	/* 
+	 * we cannot use \\ for the despecialization character because
+	 * it is also used as a path separator in EFI.
+	 */
+#define DSPEC_CHAR	L'&'
+	INTN i, l, j, cnt;
+	INTN m = 0, d = 0;
+	CHAR16 *val;
+
+	if (in == NULL || out == NULL || maxlen <= 1) return -1;
+
+	l = StrLen(in);
+
+	maxlen--;
+
+	for (i=0, j=0;i < l; i++) {
+		cnt = 1;
+		val = in+i;
+
+		if (*val == DSPEC_CHAR  && d == 0) {
+			d = 1; 
+			continue;
+		}
+		if(m == 1) {
+		    m = 0;
+		    val = get_var(*val);
+
+		    if (val == NULL) continue;
+
+		    cnt = StrLen(val);
+
+		} else if (*val == L'%' && d == 0) {
+			m = 1;
+			continue;
+		}
+		d = 0;
+		while (j < maxlen && cnt) {
+			out[j++] = *val++;
+			cnt--;
+		}
+		if (j == maxlen) break;
+	}
+	out[j] = CHAR_NULL;
+
+	return 0;
+}