1 files changed, 360 insertions, 0 deletions

diff --git a/meta/recipes-devtools/makedevs/makedevs-1.0.0/makedevs.c b/meta/recipes-devtools/makedevs/makedevs-1.0.0/makedevs.c
new file mode 100644
index 0000000000..c7ad722f2e
--- /dev/null
+++ b/meta/recipes-devtools/makedevs/makedevs-1.0.0/makedevs.c
@@ -0,0 +1,360 @@
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <time.h>
+#include <getopt.h>
+#include <libgen.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#define MINORBITS       8
+#define MKDEV(ma,mi)    (((ma) << MINORBITS) | (mi))
+
+/* These are all stolen from busybox's libbb to make
+ * error handling simpler (and since I maintain busybox, 
+ * I'm rather partial to these for error handling). 
+ *  -Erik
+ */
+static const char *const app_name = "makedevs";
+static const char *const memory_exhausted = "memory exhausted";
+static char default_rootdir[]=".";
+static char *rootdir = default_rootdir;
+
+static void verror_msg(const char *s, va_list p)
+{
+        fflush(stdout);
+        fprintf(stderr, "%s: ", app_name);
+        vfprintf(stderr, s, p);
+}
+
+static void error_msg_and_die(const char *s, ...)
+{
+        va_list p;
+
+        va_start(p, s);
+        verror_msg(s, p);
+        va_end(p);
+        putc('\n', stderr);
+        exit(EXIT_FAILURE);
+}
+
+static void vperror_msg(const char *s, va_list p)
+{
+        int err = errno;
+
+        if (s == 0)
+                s = "";
+        verror_msg(s, p);
+        if (*s)
+                s = ": ";
+        fprintf(stderr, "%s%s\n", s, strerror(err));
+}
+
+#if 0
+static void perror_msg(const char *s, ...)
+{
+        va_list p;
+
+        va_start(p, s);
+        vperror_msg(s, p);
+        va_end(p);
+}
+#endif
+
+static void perror_msg_and_die(const char *s, ...)
+{
+        va_list p;
+
+        va_start(p, s);
+        vperror_msg(s, p);
+        va_end(p);
+        exit(EXIT_FAILURE);
+}
+
+static FILE *xfopen(const char *path, const char *mode)
+{
+        FILE *fp;
+
+        if ((fp = fopen(path, mode)) == NULL)
+                perror_msg_and_die("%s", path);
+        return fp;
+}
+
+static char *xstrdup(const char *s)
+{
+        char *t;
+
+        if (s == NULL)
+                return NULL;
+
+        t = strdup(s);
+
+        if (t == NULL)
+                error_msg_and_die(memory_exhausted);
+
+        return t;
+}
+
+
+static void add_new_directory(char *name, char *path, 
+                unsigned long uid, unsigned long gid, unsigned long mode)
+{
+        mkdir(path, mode);
+        chown(path, uid, gid);
+//      printf("Directory: %s %s  UID: %ld  GID %ld  MODE: %ld\n", path, name, uid, gid, mode);
+}
+
+static void add_new_device(char *name, char *path, unsigned long uid, 
+        unsigned long gid, unsigned long mode, dev_t rdev)
+{
+        int status;
+        struct stat sb;
+        time_t timestamp = time(NULL);
+
+        memset(&sb, 0, sizeof(struct stat));
+        status = lstat(path, &sb);
+
+        if (status >= 0) {
+                /* It is ok for some types of files to not exit on disk (such as
+                 * device nodes), but if they _do_ exist the specified mode had
+                 * better match the actual file or strange things will happen.... */
+                if ((mode & S_IFMT) != (sb.st_mode & S_IFMT))
+                        error_msg_and_die("%s: file type does not match specified type!", path);
+                timestamp = sb.st_mtime;
+        }
+
+        mknod(name, mode, rdev);
+        chown(path, uid, gid);
+//      printf("Device: %s %s  UID: %ld  GID: %ld  MODE: %ld  MAJOR: %d  MINOR: %d\n",
+//                      path, name, uid, gid, mode, (short)(rdev >> 8), (short)(rdev & 0xff));
+}
+
+static void add_new_file(char *name, char *path, unsigned long uid,
+                                  unsigned long gid, unsigned long mode)
+{
+        int fd = open(path,O_CREAT | O_WRONLY, mode);
+        if (fd < 0) { 
+                error_msg_and_die("%s: file can not be created!", path);
+        } else {
+                close(fd);
+        } 
+        chmod(path, mode);
+        chown(path, uid, gid);
+//      printf("File: %s %s  UID: %ld  GID: %ld  MODE: %ld\n",
+//                      path, name, gid, uid, mode);
+}
+
+
+static void add_new_fifo(char *name, char *path, unsigned long uid,
+                                  unsigned long gid, unsigned long mode)
+{
+        if (mknod(path, mode, 0))
+                error_msg_and_die("%s: file can not be created with mknod!", path);
+        chown(path, uid, gid);
+//      printf("File: %s %s  UID: %ld  GID: %ld  MODE: %ld\n",
+//                      path, name, gid, uid, mode);
+}
+
+
+/*  device table entries take the form of:
+    <path>      <type> <mode>   <uid>   <gid>   <major> <minor> <start> <inc>   <count>
+    /dev/mem    c      640      0       0       1       1       0        0        -
+
+    type can be one of: 
+        f       A regular file
+        d       Directory
+        c       Character special device file
+        b       Block special device file
+        p       Fifo (named pipe)
+
+    I don't bother with symlinks (permissions are irrelevant), hard
+    links (special cases of regular files), or sockets (why bother).
+
+    Regular files must exist in the target root directory.  If a char,
+    block, fifo, or directory does not exist, it will be created.
+*/
+static int interpret_table_entry(char *line)
+{
+        char *name;
+        char path[4096], type;
+        unsigned long mode = 0755, uid = 0, gid = 0, major = 0, minor = 0;
+        unsigned long start = 0, increment = 1, count = 0;
+
+        if (0 > sscanf(line, "%40s %c %lo %lu %lu %lu %lu %lu %lu %lu", path,
+                    &type, &mode, &uid, &gid, &major, &minor, &start,
+                    &increment, &count)) 
+        {
+                return 1;
+        }
+
+        if (!strcmp(path, "/")) {
+                error_msg_and_die("Device table entries require absolute paths");
+        }
+        name = xstrdup(path + 1);
+        sprintf(path, "%s/%s\0", rootdir, name);
+
+        switch (type) {
+        case 'd':
+                mode |= S_IFDIR;
+                add_new_directory(name, path, uid, gid, mode);
+                break;
+        case 'f':
+                mode |= S_IFREG;
+                add_new_file(name, path, uid, gid, mode);
+                break;
+        case 'p':
+                mode |= S_IFIFO;
+                add_new_fifo(name, path, uid, gid, mode);
+                break;
+        case 'c':
+        case 'b':
+                mode |= (type == 'c') ? S_IFCHR : S_IFBLK;
+                if (count > 0) {
+                        int i;
+                        dev_t rdev;
+                        char buf[80];
+
+                        for (i = start; i < count; i++) {
+                                sprintf(buf, "%s%d", name, i);
+                                /* FIXME:  MKDEV uses illicit insider knowledge of kernel 
+                                 * major/minor representation...  */
+                                rdev = MKDEV(major, minor + (i * increment - start));
+                                add_new_device(buf, path, uid, gid, mode, rdev);
+                        }
+                } else {
+                        /* FIXME:  MKDEV uses illicit insider knowledge of kernel 
+                         * major/minor representation...  */
+                        dev_t rdev = MKDEV(major, minor);
+
+                        add_new_device(name, path, uid, gid, mode, rdev);
+                }
+                break;
+        default:
+                error_msg_and_die("Unsupported file type");
+        }
+        if (name) free(name);
+        return 0;
+}
+
+
+static void parse_device_table(FILE * file)
+{
+        char *line;
+        size_t length = 256;
+        int len = 0;
+
+        /* Looks ok so far.  The general plan now is to read in one
+         * line at a time, check for leading comment delimiters ('#'),
+         * then try and parse the line as a device table.  If we fail
+         * to parse things, try and help the poor fool to fix their
+         * device table with a useful error msg... */
+
+        if((line = (char *)malloc(length)) == NULL) {
+                fclose(file);
+                return;
+        }
+
+        while ((len = getline(&line, &length, file)) != -1) {
+                /* First trim off any whitespace */
+
+                /* trim trailing whitespace */
+                while (len > 0 && isspace(line[len - 1]))
+                        line[--len] = '\0';
+
+                /* trim leading whitespace */
+                memmove(line, &line[strspn(line, " \n\r\t\v")], len + 1);
+
+                /* If this is NOT a comment line, try to interpret it */
+                if (*line != '#') interpret_table_entry(line);
+        }
+        if (line) free(line);
+
+        fclose(file);
+}
+
+static int go(char *dname, FILE * devtable)
+{
+        struct stat sb;
+
+        if (lstat(dname, &sb)) {
+                perror_msg_and_die("%s", dname);
+        }
+        if (chdir(dname))
+                perror_msg_and_die("%s", dname);
+
+        if (devtable)
+                parse_device_table(devtable);
+
+        return 0;
+}
+
+
+static struct option long_options[] = {
+        {"root", 1, NULL, 'r'},
+        {"help", 0, NULL, 'h'},
+        {"squash", 0, NULL, 'q'},
+        {"version", 0, NULL, 'v'},
+        {"devtable", 1, NULL, 'D'},
+        {NULL, 0, NULL, 0}
+};
+
+static char *helptext =
+        "Usage: makedevs [OPTIONS]\n"
+        "Build entries based upon device_table.txt\n\n"
+        "Options:\n"
+        "  -r, -d, --root=DIR     Build filesystem from directory DIR (default: cwd)\n"
+        "  -D, --devtable=FILE    Use the named FILE as a device table file\n"
+        "  -q, --squash           Squash permissions and owners making all files be owned by root\n"
+        "  -h, --help             Display this help text\n"
+        "  -v, --version          Display version information\n\n";
+
+
+static char *revtext = "$Revision: 0.1 $";
+
+int main(int argc, char **argv)
+{
+        int c, opt;
+        extern char *optarg;
+        struct stat statbuf;
+        FILE *devtable = NULL;
+
+        umask (0);
+
+        while ((opt = getopt_long(argc, argv, "D:d:r:qhv", 
+                        long_options, &c)) >= 0) {
+                switch (opt) {
+                case 'D':
+                        devtable = xfopen(optarg, "r");
+                        if (fstat(fileno(devtable), &statbuf) < 0)
+                                perror_msg_and_die(optarg);
+                        if (statbuf.st_size < 10)
+                                error_msg_and_die("%s: not a proper device table file", optarg);
+                        break;
+                case 'h':
+                        fprintf(stderr, helptext);
+                        exit(1);
+                case 'r':
+                case 'd':                               /* for compatibility with mkfs.jffs, genext2fs, etc... */
+                        if (rootdir != default_rootdir) {
+                                error_msg_and_die("root directory specified more than once");
+                        }
+                        rootdir = xstrdup(optarg);
+                        break;
+
+                case 'v':
+                        fprintf(stderr, "makedevs revision %.*s\n",
+                                        (int) strlen(revtext) - 13, revtext + 11);
+                        exit(1);
+                }
+        }
+
+        go(rootdir, devtable);
+        return 0;
+}