1 files changed, 40 insertions, 0 deletions
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;
+}