From 43f901fbc8ba94bfa8d58155ba9378d7a13af636 Mon Sep 17 00:00:00 2001 From: Thomas Chou <thomas@wytron.com.tw> Date: Wed, 6 Oct 2010 15:13:53 +0800 Subject: [PATCH] gen_init_cpio: remove leading `/' from file names When we extracted the generated cpio archive using "cpio -id" command, it complained, cpio: Removing leading `/' from member names var/run cpio: Removing leading `/' from member names var/lib cpio: Removing leading `/' from member names var/lib/misc It is worse with the latest "cpio" or "pax", which tries to overwrite the host file system with the leading '/'. So the leading '/' of file names should be removed. This is consistent with the initramfs come with major distributions such as Fedora or Debian, etc. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Acked-by: Mike Frysinger<vapier@gentoo.org> Signed-off-by: Michal Marek <mmarek@suse.cz> --- usr/gen_init_cpio.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/usr/gen_init_cpio.c b/usr/gen_init_cpio.c index b2b3c2d1cf8bd..59df70d9d1dc1 100644 --- a/usr/gen_init_cpio.c +++ b/usr/gen_init_cpio.c @@ -104,6 +104,8 @@ static int cpio_mkslink(const char *name, const char *target, char s[256]; time_t mtime = time(NULL); + if (name[0] == '/') + name++; sprintf(s,"%s%08X%08X%08lX%08lX%08X%08lX" "%08X%08X%08X%08X%08X%08X%08X", "070701", /* magic */ @@ -152,6 +154,8 @@ static int cpio_mkgeneric(const char *name, unsigned int mode, char s[256]; time_t mtime = time(NULL); + if (name[0] == '/') + name++; sprintf(s,"%s%08X%08X%08lX%08lX%08X%08lX" "%08X%08X%08X%08X%08X%08X%08X", "070701", /* magic */ @@ -245,6 +249,8 @@ static int cpio_mknod(const char *name, unsigned int mode, else mode |= S_IFCHR; + if (name[0] == '/') + name++; sprintf(s,"%s%08X%08X%08lX%08lX%08X%08lX" "%08X%08X%08X%08X%08X%08X%08X", "070701", /* magic */ @@ -332,6 +338,8 @@ static int cpio_mkfile(const char *name, const char *location, /* data goes on last link */ if (i == nlinks) size = buf.st_size; + if (name[0] == '/') + name++; namesize = strlen(name) + 1; sprintf(s,"%s%08X%08X%08lX%08lX%08X%08lX" "%08lX%08X%08X%08X%08X%08X%08X", -- GitLab