summaryrefslogtreecommitdiffstats
path: root/abs/core-testing/gen-init-cpio/gen_init_cpio.c
diff options
context:
space:
mode:
Diffstat (limited to 'abs/core-testing/gen-init-cpio/gen_init_cpio.c')
-rw-r--r--abs/core-testing/gen-init-cpio/gen_init_cpio.c514
1 files changed, 0 insertions, 514 deletions
diff --git a/abs/core-testing/gen-init-cpio/gen_init_cpio.c b/abs/core-testing/gen-init-cpio/gen_init_cpio.c
deleted file mode 100644
index 83acd6c..0000000
--- a/abs/core-testing/gen-init-cpio/gen_init_cpio.c
+++ /dev/null
@@ -1,514 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <string.h>
-#include <unistd.h>
-#include <time.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <ctype.h>
-#include <limits.h>
-
-/*
- * Original work by Jeff Garzik
- *
- * External file lists, symlink, pipe and fifo support by Thayne Harbaugh
- */
-
-#define xstr(s) #s
-#define str(s) xstr(s)
-
-static unsigned int offset;
-static unsigned int ino = 721;
-
-struct file_handler {
- const char *type;
- int (*handler)(const char *line);
-};
-
-static void push_string(const char *name)
-{
- unsigned int name_len = strlen(name) + 1;
-
- fputs(name, stdout);
- putchar(0);
- offset += name_len;
-}
-
-static void push_pad (void)
-{
- while (offset & 3) {
- putchar(0);
- offset++;
- }
-}
-
-static void push_rest(const char *name)
-{
- unsigned int name_len = strlen(name) + 1;
- unsigned int tmp_ofs;
-
- fputs(name, stdout);
- putchar(0);
- offset += name_len;
-
- tmp_ofs = name_len + 110;
- while (tmp_ofs & 3) {
- putchar(0);
- offset++;
- tmp_ofs++;
- }
-}
-
-static void push_hdr(const char *s)
-{
- fputs(s, stdout);
- offset += 110;
-}
-
-static void cpio_trailer(void)
-{
- char s[256];
- const char name[] = "TRAILER!!!";
-
- sprintf(s, "%s%08X%08X%08lX%08lX%08X%08lX"
- "%08X%08X%08X%08X%08X%08X%08X",
- "070701", /* magic */
- 0, /* ino */
- 0, /* mode */
- (long) 0, /* uid */
- (long) 0, /* gid */
- 1, /* nlink */
- (long) 0, /* mtime */
- 0, /* filesize */
- 0, /* major */
- 0, /* minor */
- 0, /* rmajor */
- 0, /* rminor */
- (unsigned)strlen(name)+1, /* namesize */
- 0); /* chksum */
- push_hdr(s);
- push_rest(name);
-
- while (offset % 512) {
- putchar(0);
- offset++;
- }
-}
-
-static int cpio_mkslink(const char *name, const char *target,
- unsigned int mode, uid_t uid, gid_t gid)
-{
- char s[256];
- time_t mtime = time(NULL);
-
- sprintf(s,"%s%08X%08X%08lX%08lX%08X%08lX"
- "%08X%08X%08X%08X%08X%08X%08X",
- "070701", /* magic */
- ino++, /* ino */
- S_IFLNK | mode, /* mode */
- (long) uid, /* uid */
- (long) gid, /* gid */
- 1, /* nlink */
- (long) mtime, /* mtime */
- (unsigned)strlen(target)+1, /* filesize */
- 3, /* major */
- 1, /* minor */
- 0, /* rmajor */
- 0, /* rminor */
- (unsigned)strlen(name) + 1,/* namesize */
- 0); /* chksum */
- push_hdr(s);
- push_string(name);
- push_pad();
- push_string(target);
- push_pad();
- return 0;
-}
-
-static int cpio_mkslink_line(const char *line)
-{
- char name[PATH_MAX + 1];
- char target[PATH_MAX + 1];
- unsigned int mode;
- int uid;
- int gid;
- int rc = -1;
-
- if (5 != sscanf(line, "%" str(PATH_MAX) "s %" str(PATH_MAX) "s %o %d %d", name, target, &mode, &uid, &gid)) {
- fprintf(stderr, "Unrecognized dir format '%s'", line);
- goto fail;
- }
- rc = cpio_mkslink(name, target, mode, uid, gid);
- fail:
- return rc;
-}
-
-static int cpio_mkgeneric(const char *name, unsigned int mode,
- uid_t uid, gid_t gid)
-{
- char s[256];
- time_t mtime = time(NULL);
-
- sprintf(s,"%s%08X%08X%08lX%08lX%08X%08lX"
- "%08X%08X%08X%08X%08X%08X%08X",
- "070701", /* magic */
- ino++, /* ino */
- mode, /* mode */
- (long) uid, /* uid */
- (long) gid, /* gid */
- 2, /* nlink */
- (long) mtime, /* mtime */
- 0, /* filesize */
- 3, /* major */
- 1, /* minor */
- 0, /* rmajor */
- 0, /* rminor */
- (unsigned)strlen(name) + 1,/* namesize */
- 0); /* chksum */
- push_hdr(s);
- push_rest(name);
- return 0;
-}
-
-enum generic_types {
- GT_DIR,
- GT_PIPE,
- GT_SOCK
-};
-
-struct generic_type {
- const char *type;
- mode_t mode;
-};
-
-static struct generic_type generic_type_table[] = {
- [GT_DIR] = {
- .type = "dir",
- .mode = S_IFDIR
- },
- [GT_PIPE] = {
- .type = "pipe",
- .mode = S_IFIFO
- },
- [GT_SOCK] = {
- .type = "sock",
- .mode = S_IFSOCK
- }
-};
-
-static int cpio_mkgeneric_line(const char *line, enum generic_types gt)
-{
- char name[PATH_MAX + 1];
- unsigned int mode;
- int uid;
- int gid;
- int rc = -1;
-
- if (4 != sscanf(line, "%" str(PATH_MAX) "s %o %d %d", name, &mode, &uid, &gid)) {
- fprintf(stderr, "Unrecognized %s format '%s'",
- line, generic_type_table[gt].type);
- goto fail;
- }
- mode |= generic_type_table[gt].mode;
- rc = cpio_mkgeneric(name, mode, uid, gid);
- fail:
- return rc;
-}
-
-static int cpio_mkdir_line(const char *line)
-{
- return cpio_mkgeneric_line(line, GT_DIR);
-}
-
-static int cpio_mkpipe_line(const char *line)
-{
- return cpio_mkgeneric_line(line, GT_PIPE);
-}
-
-static int cpio_mksock_line(const char *line)
-{
- return cpio_mkgeneric_line(line, GT_SOCK);
-}
-
-static int cpio_mknod(const char *name, unsigned int mode,
- uid_t uid, gid_t gid, char dev_type,
- unsigned int maj, unsigned int min)
-{
- char s[256];
- time_t mtime = time(NULL);
-
- if (dev_type == 'b')
- mode |= S_IFBLK;
- else
- mode |= S_IFCHR;
-
- sprintf(s,"%s%08X%08X%08lX%08lX%08X%08lX"
- "%08X%08X%08X%08X%08X%08X%08X",
- "070701", /* magic */
- ino++, /* ino */
- mode, /* mode */
- (long) uid, /* uid */
- (long) gid, /* gid */
- 1, /* nlink */
- (long) mtime, /* mtime */
- 0, /* filesize */
- 3, /* major */
- 1, /* minor */
- maj, /* rmajor */
- min, /* rminor */
- (unsigned)strlen(name) + 1,/* namesize */
- 0); /* chksum */
- push_hdr(s);
- push_rest(name);
- return 0;
-}
-
-static int cpio_mknod_line(const char *line)
-{
- char name[PATH_MAX + 1];
- unsigned int mode;
- int uid;
- int gid;
- char dev_type;
- unsigned int maj;
- unsigned int min;
- int rc = -1;
-
- if (7 != sscanf(line, "%" str(PATH_MAX) "s %o %d %d %c %u %u",
- name, &mode, &uid, &gid, &dev_type, &maj, &min)) {
- fprintf(stderr, "Unrecognized nod format '%s'", line);
- goto fail;
- }
- rc = cpio_mknod(name, mode, uid, gid, dev_type, maj, min);
- fail:
- return rc;
-}
-
-/* Not marked static to keep the compiler quiet, as no one uses this yet... */
-static int cpio_mkfile(const char *name, const char *location,
- unsigned int mode, uid_t uid, gid_t gid)
-{
- char s[256];
- char *filebuf = NULL;
- struct stat buf;
- int file = -1;
- int retval;
- int rc = -1;
-
- mode |= S_IFREG;
-
- retval = stat (location, &buf);
- if (retval) {
- fprintf (stderr, "File %s could not be located\n", location);
- goto error;
- }
-
- file = open (location, O_RDONLY);
- if (file < 0) {
- fprintf (stderr, "File %s could not be opened for reading\n", location);
- goto error;
- }
-
- filebuf = malloc(buf.st_size);
- if (!filebuf) {
- fprintf (stderr, "out of memory\n");
- goto error;
- }
-
- retval = read (file, filebuf, buf.st_size);
- if (retval < 0) {
- fprintf (stderr, "Can not read %s file\n", location);
- goto error;
- }
-
- sprintf(s,"%s%08X%08X%08lX%08lX%08X%08lX"
- "%08X%08X%08X%08X%08X%08X%08X",
- "070701", /* magic */
- ino++, /* ino */
- mode, /* mode */
- (long) uid, /* uid */
- (long) gid, /* gid */
- 1, /* nlink */
- (long) buf.st_mtime, /* mtime */
- (int) buf.st_size, /* filesize */
- 3, /* major */
- 1, /* minor */
- 0, /* rmajor */
- 0, /* rminor */
- (unsigned)strlen(name) + 1,/* namesize */
- 0); /* chksum */
- push_hdr(s);
- push_string(name);
- push_pad();
-
- fwrite(filebuf, buf.st_size, 1, stdout);
- offset += buf.st_size;
- push_pad();
- rc = 0;
-
-error:
- if (filebuf) free(filebuf);
- if (file >= 0) close(file);
- return rc;
-}
-
-static int cpio_mkfile_line(const char *line)
-{
- char name[PATH_MAX + 1];
- char location[PATH_MAX + 1];
- unsigned int mode;
- int uid;
- int gid;
- int rc = -1;
-
- if (5 != sscanf(line, "%" str(PATH_MAX) "s %" str(PATH_MAX) "s %o %d %d", name, location, &mode, &uid, &gid)) {
- fprintf(stderr, "Unrecognized file format '%s'", line);
- goto fail;
- }
- rc = cpio_mkfile(name, location, mode, uid, gid);
- fail:
- return rc;
-}
-
-void usage(const char *prog)
-{
- fprintf(stderr, "Usage:\n"
- "\t%s <cpio_list>\n"
- "\n"
- "<cpio_list> is a file containing newline separated entries that\n"
- "describe the files to be included in the initramfs archive:\n"
- "\n"
- "# a comment\n"
- "file <name> <location> <mode> <uid> <gid>\n"
- "dir <name> <mode> <uid> <gid>\n"
- "nod <name> <mode> <uid> <gid> <dev_type> <maj> <min>\n"
- "slink <name> <target> <mode> <uid> <gid>\n"
- "pipe <name> <mode> <uid> <gid>\n"
- "sock <name> <mode> <uid> <gid>\n"
- "\n"
- "<name> name of the file/dir/nod/etc in the archive\n"
- "<location> location of the file in the current filesystem\n"
- "<target> link target\n"
- "<mode> mode/permissions of the file\n"
- "<uid> user id (0=root)\n"
- "<gid> group id (0=root)\n"
- "<dev_type> device type (b=block, c=character)\n"
- "<maj> major number of nod\n"
- "<min> minor number of nod\n"
- "\n"
- "example:\n"
- "# A simple initramfs\n"
- "dir /dev 0755 0 0\n"
- "nod /dev/console 0600 0 0 c 5 1\n"
- "dir /root 0700 0 0\n"
- "dir /sbin 0755 0 0\n"
- "file /sbin/kinit /usr/src/klibc/kinit/kinit 0755 0 0\n",
- prog);
-}
-
-struct file_handler file_handler_table[] = {
- {
- .type = "file",
- .handler = cpio_mkfile_line,
- }, {
- .type = "nod",
- .handler = cpio_mknod_line,
- }, {
- .type = "dir",
- .handler = cpio_mkdir_line,
- }, {
- .type = "slink",
- .handler = cpio_mkslink_line,
- }, {
- .type = "pipe",
- .handler = cpio_mkpipe_line,
- }, {
- .type = "sock",
- .handler = cpio_mksock_line,
- }, {
- .type = NULL,
- .handler = NULL,
- }
-};
-
-#define LINE_SIZE (2 * PATH_MAX + 50)
-
-int main (int argc, char *argv[])
-{
- FILE *cpio_list;
- char line[LINE_SIZE];
- char *args, *type;
- int ec = 0;
- int line_nr = 0;
-
- if (2 != argc) {
- usage(argv[0]);
- exit(1);
- }
-
- if (! (cpio_list = fopen(argv[1], "r"))) {
- fprintf(stderr, "ERROR: unable to open '%s': %s\n\n",
- argv[1], strerror(errno));
- usage(argv[0]);
- exit(1);
- }
-
- while (fgets(line, LINE_SIZE, cpio_list)) {
- int type_idx;
- size_t slen = strlen(line);
-
- line_nr++;
-
- if ('#' == *line) {
- /* comment - skip to next line */
- continue;
- }
-
- if (! (type = strtok(line, " \t"))) {
- fprintf(stderr,
- "ERROR: incorrect format, could not locate file type line %d: '%s'\n",
- line_nr, line);
- ec = -1;
- break;
- }
-
- if ('\n' == *type) {
- /* a blank line */
- continue;
- }
-
- if (slen == strlen(type)) {
- /* must be an empty line */
- continue;
- }
-
- if (! (args = strtok(NULL, "\n"))) {
- fprintf(stderr,
- "ERROR: incorrect format, newline required line %d: '%s'\n",
- line_nr, line);
- ec = -1;
- }
-
- for (type_idx = 0; file_handler_table[type_idx].type; type_idx++) {
- int rc;
- if (! strcmp(line, file_handler_table[type_idx].type)) {
- if ((rc = file_handler_table[type_idx].handler(args))) {
- ec = rc;
- fprintf(stderr, " line %d\n", line_nr);
- }
- break;
- }
- }
-
- if (NULL == file_handler_table[type_idx].type) {
- fprintf(stderr, "unknown file type line %d: '%s'\n",
- line_nr, line);
- }
- }
- if (ec == 0)
- cpio_trailer();
-
- exit(ec);
-}