diff options
Diffstat (limited to 'abs/core/gen-init-cpio')
| -rw-r--r-- | abs/core/gen-init-cpio/Makefile | 42 | ||||
| -rw-r--r-- | abs/core/gen-init-cpio/PKGBUILD | 26 | ||||
| -rw-r--r-- | abs/core/gen-init-cpio/gen_init_cpio.c | 592 |
3 files changed, 0 insertions, 660 deletions
diff --git a/abs/core/gen-init-cpio/Makefile b/abs/core/gen-init-cpio/Makefile deleted file mode 100644 index 1ebe763..0000000 --- a/abs/core/gen-init-cpio/Makefile +++ /dev/null @@ -1,42 +0,0 @@ - -DESTDIR = -PREFIX = / - -MKDIR = /bin/mkdir -INSTALL = /bin/install -c -m 755 - -CC = /usr/bin/gcc -LD = /usr/bin/gcc - -CFLAGS += -Wall -Wstrict-prototypes -Wsign-compare -Wchar-subscripts \ - -Wpointer-arith -Wcast-align -Wsign-compare - -#pretty print! -E = @echo -Q = @ - -all: gen_init_cpio -.PHONY: all -.DEFAULT: all - -%.o: %.c - $(E) " compile " $@ - $(Q) $(CC) -c $(CFLAGS) $< -o $@ - -gen_init_cpio: gen_init_cpio.o - $(E) ">>build " $@ - $(Q) $(LD) $(LDFLAGS) $@.o -o $@ $(LIB_OBJS) - -clean: - $(E) " clean " - $(Q) rm -f gen_init_cpio *.o -.PHONY: clean - -install: all - $(MKDIR) -p $(DESTDIR)$(PREFIX)sbin/ - $(INSTALL) gen_init_cpio $(DESTDIR)$(PREFIX)sbin/ -.PHONY: install - -uninstall: - rm $(DESTDIR)$(PREFIX)sbin/gen_init_cpio -.PHONY: uninstall diff --git a/abs/core/gen-init-cpio/PKGBUILD b/abs/core/gen-init-cpio/PKGBUILD deleted file mode 100644 index cad7221..0000000 --- a/abs/core/gen-init-cpio/PKGBUILD +++ /dev/null @@ -1,26 +0,0 @@ -# $Id: PKGBUILD 60483 2009-12-05 10:21:23Z tpowa $ -# Maintainer : Tobias Powalowski <tpowa@archlinux.org> - -pkgname=gen-init-cpio -pkgver=2.6.32 -pkgrel=1 -pkgdesc="Program to compress initramfs images" -arch=('i686' 'x86_64') -license=('custom:none') -groups=('base') -url="http://www.kernel.org/" -depends=('glibc') -source=(Makefile gen_init_cpio.c) -md5sums=('8e3a142a522d65121c3bead41013be98' - '1e930eb3d6255aca3b91a73e31bf9da6') - -build() -{ - cd $srcdir/ - make || return 1 -} - -package() { - cd $srcdir/ - make DESTDIR=$pkgdir install -} diff --git a/abs/core/gen-init-cpio/gen_init_cpio.c b/abs/core/gen-init-cpio/gen_init_cpio.c deleted file mode 100644 index 83b3dde..0000000 --- a/abs/core/gen-init-cpio/gen_init_cpio.c +++ /dev/null @@ -1,592 +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 - * Hard link support by Luciano Rocha - */ - -#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; -} - -static int cpio_mkfile(const char *name, const char *location, - unsigned int mode, uid_t uid, gid_t gid, - unsigned int nlinks) -{ - char s[256]; - char *filebuf = NULL; - struct stat buf; - long size; - int file = -1; - int retval; - int rc = -1; - int namesize; - int i; - - 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; - } - - size = 0; - for (i = 1; i <= nlinks; i++) { - /* data goes on last link */ - if (i == nlinks) size = buf.st_size; - - namesize = strlen(name) + 1; - sprintf(s,"%s%08X%08X%08lX%08lX%08X%08lX" - "%08lX%08X%08X%08X%08X%08X%08X", - "070701", /* magic */ - ino, /* ino */ - mode, /* mode */ - (long) uid, /* uid */ - (long) gid, /* gid */ - nlinks, /* nlink */ - (long) buf.st_mtime, /* mtime */ - size, /* filesize */ - 3, /* major */ - 1, /* minor */ - 0, /* rmajor */ - 0, /* rminor */ - namesize, /* namesize */ - 0); /* chksum */ - push_hdr(s); - push_string(name); - push_pad(); - - if (size) { - fwrite(filebuf, size, 1, stdout); - offset += size; - push_pad(); - } - - name += namesize; - } - ino++; - rc = 0; - -error: - if (filebuf) free(filebuf); - if (file >= 0) close(file); - return rc; -} - -static char *cpio_replace_env(char *new_location) -{ - char expanded[PATH_MAX + 1]; - char env_var[PATH_MAX + 1]; - char *start; - char *end; - - for (start = NULL; (start = strstr(new_location, "${")); ) { - end = strchr(start, '}'); - if (start < end) { - *env_var = *expanded = '\0'; - strncat(env_var, start + 2, end - start - 2); - strncat(expanded, new_location, start - new_location); - strncat(expanded, getenv(env_var), PATH_MAX); - strncat(expanded, end + 1, PATH_MAX); - strncpy(new_location, expanded, PATH_MAX); - } else - break; - } - - return new_location; -} - - -static int cpio_mkfile_line(const char *line) -{ - char name[PATH_MAX + 1]; - char *dname = NULL; /* malloc'ed buffer for hard links */ - char location[PATH_MAX + 1]; - unsigned int mode; - int uid; - int gid; - int nlinks = 1; - int end = 0, dname_len = 0; - int rc = -1; - - if (5 > sscanf(line, "%" str(PATH_MAX) "s %" str(PATH_MAX) - "s %o %d %d %n", - name, location, &mode, &uid, &gid, &end)) { - fprintf(stderr, "Unrecognized file format '%s'", line); - goto fail; - } - if (end && isgraph(line[end])) { - int len; - int nend; - - dname = malloc(strlen(line)); - if (!dname) { - fprintf (stderr, "out of memory (%d)\n", dname_len); - goto fail; - } - - dname_len = strlen(name) + 1; - memcpy(dname, name, dname_len); - - do { - nend = 0; - if (sscanf(line + end, "%" str(PATH_MAX) "s %n", - name, &nend) < 1) - break; - len = strlen(name) + 1; - memcpy(dname + dname_len, name, len); - dname_len += len; - nlinks++; - end += nend; - } while (isgraph(line[end])); - } else { - dname = name; - } - rc = cpio_mkfile(dname, cpio_replace_env(location), - mode, uid, gid, nlinks); - fail: - if (dname_len) free(dname); - return rc; -} - -static 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> [<hard links>]\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" - " expands shell variables quoted with ${}\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" - "<hard links> space separated list of other links to file\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 (!strcmp(argv[1], "-")) - cpio_list = stdin; - else 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); -} |