*** empty log message ***

1 files changed, 131 insertions, 0 deletions

diff --git a/isys/devnodes.c b/isys/devnodes.c
new file mode 100644
index 000000000..97ab2c3c9
--- /dev/null
+++ b/isys/devnodes.c
@@ -0,0 +1,131 @@
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/sysmacros.h>
+#include <unistd.h>
+
+struct devnum {
+    char * name;
+    short major, minor;
+    int isChar;
+};
+
+static struct devnum devices[] = {
+    { "aztcd",		29,	0,	0 },
+    { "bpcd",		41,	0,	0 },
+    { "cdu31a",		15,	0,	0 },
+    { "cdu535",		24,	0,	0 },
+    { "cm206cd",	32,	0,	0 },
+    { "fd0",     	2,	0,	0 },
+    { "fd1",		2,	1,	0 },
+    { "gscd",		16,	0,	0 },
+    { "lp0",		6,	0,	1 },
+    { "lp1",		6,	1,	1 },
+    { "lp2",		6,	2,	1 },
+    { "mcd",		23,	0,	0 },
+    { "mcdx",		20,	0,	0 },
+    { "nst0",		9,	128,	1 },
+    { "optcd",		17,	0,	0 },
+    { "sbpcd",		25,	0,	0 },
+    { "scd0",		11,	0,	0 },
+    { "scd1",		11,	1,	0 },
+    { "sjcd",		18,	0,	0 },
+};
+
+int numDevices = sizeof(devices) / sizeof(struct devnum);
+
+int devMakeInode(char * devName, char * path) {
+    int i;
+    int major, minor;
+    int type;
+    char *ptr;
+    char *dir;
+
+    if (devName[0] == 's' && devName[1] == 'd') {
+	type = S_IFBLK;
+	major = 8;
+	minor = (devName[2] - 'a') << 4;
+	if (devName[3] && devName[4])
+	   minor += 10 + (devName[4] - '0');
+	else if (devName[3])
+	   minor += (devName[3] - '0');
+    } else if (devName[0] == 'h' && devName[1] == 'd') {
+	type = S_IFBLK;
+	if (devName[2] == 'a')
+	    major = 3, minor = 0;
+	else if (devName[2] == 'b')
+	    major = 3, minor = 64;
+	else if (devName[2] == 'c')
+	    major = 22, minor = 0;
+	else if (devName[2] == 'd')
+	    major = 22, minor = 64;
+	else if (devName[2] == 'e')
+	    major = 33, minor = 0;
+	else if (devName[2] == 'f')
+	    major = 33, minor = 64;
+	else if (devName[2] == 'g')
+	    major = 34, minor = 0;
+	else if (devName[2] == 'h')
+	    major = 34, minor = 64;
+	else
+	    return -1;
+
+	if (devName[3] && devName[4])
+	   minor += 10 + (devName[4] - '0');
+	else if (devName[3])
+	   minor += (devName[3] - '0');
+    } else if (!strncmp(devName, "ram", 3)) {
+	type = S_IFBLK;
+	major = 1;
+	minor = 1;
+	if (devName[3])
+	    minor += devName[3] - '1';
+    } else if (!strncmp(devName, "rd/", 3)) {
+	/* dac 960 "/rd/c0d0{p1}" */
+	type = S_IFBLK;
+	major = 48 + devName[4] - '0';   /* controller */
+	minor = (devName[6] - '0') * 8;  /* disk */
+	if (strlen(devName) > 7)         /* partition */
+	    minor += devName[8] - '0';
+    } else if (!strncmp(devName, "ida/", 4)) {
+	/* Compaq Smart Array "ida/c0d0{p1} */
+	type = S_IFBLK;
+	major = 72;                    /* controller */
+	minor = (devName[7] - '0') * 16;  /* disk */
+	if (strlen(devName) > 8)          /* partition */
+	    minor += atoi(devName + 9);
+    } else {
+	for (i = 0; i < numDevices; i++) {
+	    if (!strcmp(devices[i].name, devName)) break;
+	}
+	if (i == numDevices) return -1;
+	major = devices[i].major;
+	minor = devices[i].minor;
+
+	if (devices[i].isChar)
+	    type = S_IFCHR;
+	else
+	    type = S_IFBLK;
+    }
+
+    ptr = path;
+    i = 0;
+    while (*ptr)
+      if (*ptr++ == '/')
+	i++;
+    if (i > 2) {
+      dir = alloca(strlen(path) + 1);
+      strcpy(dir, path);
+      ptr = dir + (strlen(path) - 1);
+      while (*ptr != '/')
+	*ptr-- = '\0';
+      mkdir(dir, 0644);
+    }
+    
+    unlink(path);
+    if (mknod(path, type | 0600, makedev(major, minor))) {
+	return -2;
+    }
+
+    return 0;
+}