4 files changed, 130 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/core/fs/lib/close.c b/contrib/syslinux-4.02/core/fs/lib/close.c
new file mode 100644
index 0000000..279598b
--- /dev/null
+++ b/contrib/syslinux-4.02/core/fs/lib/close.c
@@ -0,0 +1,9 @@
+#include "fs.h"
+
+void generic_close_file(struct file *file)
+{
+    if (file->inode) {
+	file->offset = 0;
+	put_inode(file->inode);
+    }
+}
diff --git a/contrib/syslinux-4.02/core/fs/lib/loadconfig.c b/contrib/syslinux-4.02/core/fs/lib/loadconfig.c
new file mode 100644
index 0000000..c9652b6
--- /dev/null
+++ b/contrib/syslinux-4.02/core/fs/lib/loadconfig.c
@@ -0,0 +1,34 @@
+#include <dprintf.h>
+#include <stdio.h>
+#include <string.h>
+#include <core.h>
+#include <fs.h>
+
+/*
+ * Standard version of load_config for extlinux/syslinux filesystems.
+ *
+ * This searches for extlinux.conf and syslinux.cfg in the install
+ * directory, followed by a set of fallback directories.  If found,
+ * set the current working directory to match.
+ */
+int generic_load_config(void)
+{
+    static const char *search_directories[] = {
+	NULL,			/* CurrentDirName */
+	"/boot/syslinux",
+	"/syslinux",
+	"/",
+	NULL
+    };
+    static const char *filenames[] = {
+	"extlinux.conf",
+	"syslinux.cfg",
+	NULL
+    };
+
+    search_directories[0] = CurrentDirName;
+
+    dprintf("CurrentDirName: \"%s\"\n", CurrentDirName);
+
+    return search_config(search_directories, filenames);
+}
diff --git a/contrib/syslinux-4.02/core/fs/lib/mangle.c b/contrib/syslinux-4.02/core/fs/lib/mangle.c
new file mode 100644
index 0000000..813099f
--- /dev/null
+++ b/contrib/syslinux-4.02/core/fs/lib/mangle.c
@@ -0,0 +1,47 @@
+/**
+ * mangle_name:
+ *
+ * Mangle a filename pointed to by src into a buffer pointed
+ * to by dst; ends on encountering any whitespace.
+ * dst is preserved.
+ *
+ * This verifies that a filename is < FILENAME_MAX characters,
+ * doesn't contain whitespace, zero-pads the output buffer,
+ * and removes redundant slashes.
+ *
+ */
+
+#include <string.h>
+#include "fs.h"
+
+void generic_mangle_name(char *dst, const char *src)
+{
+    char *p = dst;
+    int i = FILENAME_MAX-1;
+
+    while (not_whitespace(*src)) {
+        if (*src == '/') {
+            if (src[1] == '/') {
+                src++;
+                i--;
+                continue;
+            }
+        }
+        i--;
+        *dst++ = *src++;
+    }
+
+    while (1) {
+        if (dst == p)
+            break;
+        if (dst[-1] != '/')
+            break;
+
+        dst--;
+        i++;
+    }
+
+    i++;
+    for (; i > 0; i --)
+        *dst++ = '\0';
+}
diff --git a/contrib/syslinux-4.02/core/fs/lib/searchconfig.c b/contrib/syslinux-4.02/core/fs/lib/searchconfig.c
new file mode 100644
index 0000000..24bfde3
--- /dev/null
+++ b/contrib/syslinux-4.02/core/fs/lib/searchconfig.c
@@ -0,0 +1,40 @@
+#include <dprintf.h>
+#include <stdio.h>
+#include <string.h>
+#include <core.h>
+#include <fs.h>
+
+/*
+ * Common implementation of load_config
+ *
+ * This searches for a specified set of filenames in a specified set
+ * of directories.  If found, set the current working directory to
+ * match.
+ */
+int search_config(const char *search_directories[], const char *filenames[])
+{
+    char confignamebuf[FILENAME_MAX];
+    com32sys_t regs;
+    const char *sd, **sdp;
+    const char *sf, **sfp;
+
+    for (sdp = search_directories; (sd = *sdp); sdp++) {
+	for (sfp = filenames; (sf = *sfp); sfp++) {
+	    memset(&regs, 0, sizeof regs);
+	    snprintf(confignamebuf, sizeof confignamebuf,
+		     "%s%s%s",
+		     sd, (*sd && sd[strlen(sd)-1] == '/') ? "" : "/",
+		     sf);
+	    realpath(ConfigName, confignamebuf, FILENAME_MAX);
+	    regs.edi.w[0] = OFFS_WRT(ConfigName, 0);
+	    dprintf("Config search: %s\n", ConfigName);
+	    call16(core_open, &regs, &regs);
+	    if (!(regs.eflags.l & EFLAGS_ZF)) {
+		chdir(sd);
+		return 0;	/* Got it */
+	    }
+	}
+    }
+
+    return -1;
+}