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| author | Rob Landley <rob@landley.net> | 2014-03-11 21:10:45 -0500 |
|---|---|---|
| committer | Rob Landley <rob@landley.net> | 2014-03-11 21:10:45 -0500 |
| commit | c8f379c1f70378f24cd697043b651f3422582cf0 (patch) | |
| tree | 0e18e984abab6fb0cba62739c37d60457cd51eb4 /toys/pending/cpio.c | |
| parent | ca1b60e3bdb19eca981e5ccf4e07100aafddb007 (diff) | |
| download | toybox-c8f379c1f70378f24cd697043b651f3422582cf0.tar.gz | |
Patch from Isaac Dunham to add cpio -d, with a few tweaks by me.
Diffstat (limited to 'toys/pending/cpio.c')
| -rw-r--r-- | toys/pending/cpio.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/toys/pending/cpio.c b/toys/pending/cpio.c index e0ed8e85..61f475b9 100644 --- a/toys/pending/cpio.c +++ b/toys/pending/cpio.c @@ -6,20 +6,23 @@ * http://refspecs.linuxfoundation.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/cpio.html * * http://pubs.opengroup.org/onlinepubs/7908799/xcu/cpio.html + * (Yes, that's SUSv2, the newer standards removed it around the time RPM + * and initramfs started heavily using this archive format. Go figure.) -USE_CPIO(NEWTOY(cpio, "H:iotuF:", TOYFLAG_BIN)) +USE_CPIO(NEWTOY(cpio, "H:diotuF:", TOYFLAG_BIN)) config CPIO bool "cpio" default n help - usage: cpio { -iu | -o | -t } [-H FMT] [-F ARCHIVE] + usage: cpio { -i[du] | -o | -t } [-H FMT] [-F ARCHIVE] copy files into and out of an archive + -d create leading directories when extracting an archive -i extract from archive into file system (stdin is an archive) -o create archive (stdin is a list of files, stdout is an archive) -t list files (stdin is an archive, stdout is a list of files) - -u always overwrite files (current default) + -u always overwrite files (default) -H FMT write archive in specified format: newc SVR4 new character format (default) -F ARCHIVE read from or write to ARCHIVE @@ -49,7 +52,8 @@ void loopfiles_stdin(void (*function)(int fd, char *name, struct stat st)) if (name) { if (toybuf[strlen(name) - 1] == '\n' ) { toybuf[strlen(name) - 1 ] = '\0'; - if (lstat(name, &st) == -1) continue; + if (lstat(name, &st) == -1) verror_msg(name, errno, NULL); + if (errno) continue; fd = open(name, O_RDONLY); if (fd > 0 || !S_ISREG(st.st_mode)) { function(fd, name, st); @@ -158,7 +162,7 @@ int read_cpio_member(int fd, int how) mode_t mode = 0; int pad, ofd = 0; struct newc_header hdr; - char *name; + char *name, *lastdir; dev_t dev = 0; xreadall(fd, &hdr, sizeof(struct newc_header)); @@ -171,6 +175,9 @@ int read_cpio_member(int fd, int how) if (pad < 4) xreadall(fd, toybuf, pad); pad = 4 - (fsize % 4); + if ((toys.optflags&FLAG_d) && (lastdir = strrchr(name, '/'))) + if (mkpathat(AT_FDCWD, name, 0, 2)) perror_msg("mkpath '%s'", name); + if (how & 1) { if (S_ISDIR(mode)) ofd = mkdir(name, mode); else if (S_ISLNK(mode)) { |