From 5e1a84ab74d5e97582427f016f291a8c11e66f99 Mon Sep 17 00:00:00 2001 From: jutteau Date: Fri, 11 May 2007 18:10:19 +0000 Subject: Completion du script de mise à jour de la pc-104 : * Ajout des sources de busybox dans ./conf/busybox/ * Ajout d'un fichier réclamé par les script dans ./conf/busybox.links --- i/pc104/initrd/conf/busybox/libbb/xgetcwd.c | 44 +++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 i/pc104/initrd/conf/busybox/libbb/xgetcwd.c (limited to 'i/pc104/initrd/conf/busybox/libbb/xgetcwd.c') diff --git a/i/pc104/initrd/conf/busybox/libbb/xgetcwd.c b/i/pc104/initrd/conf/busybox/libbb/xgetcwd.c new file mode 100644 index 0000000..ec1d8f7 --- /dev/null +++ b/i/pc104/initrd/conf/busybox/libbb/xgetcwd.c @@ -0,0 +1,44 @@ +/* vi: set sw=4 ts=4: */ +/* + * xgetcwd.c -- return current directory with unlimited length + * Copyright (C) 1992, 1996 Free Software Foundation, Inc. + * Written by David MacKenzie . + * + * Special function for busybox written by Vladimir Oleynik +*/ + +#include "libbb.h" + +/* Amount to increase buffer size by in each try. */ +#define PATH_INCR 32 + +/* Return the current directory, newly allocated, arbitrarily long. + Return NULL and set errno on error. + If argument is not NULL (previous usage allocate memory), call free() +*/ + +char * +xrealloc_getcwd_or_warn(char *cwd) +{ + char *ret; + unsigned path_max; + + path_max = (unsigned) PATH_MAX; + path_max += 2; /* The getcwd docs say to do this. */ + + if (cwd == NULL) + cwd = xmalloc(path_max); + + while ((ret = getcwd(cwd, path_max)) == NULL && errno == ERANGE) { + path_max += PATH_INCR; + cwd = xrealloc(cwd, path_max); + } + + if (ret == NULL) { + free(cwd); + bb_perror_msg("getcwd"); + return NULL; + } + + return cwd; +} -- cgit v1.2.3