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-rw-r--r--Makefile.am6
-rw-r--r--libkmod/libkmod-config.c2
-rw-r--r--libkmod/libkmod-elf.c2
-rw-r--r--libkmod/libkmod-file.c2
-rw-r--r--libkmod/libkmod-hash.c2
-rw-r--r--libkmod/libkmod-index.c1
-rw-r--r--libkmod/libkmod-module.c2
-rw-r--r--libkmod/libkmod-signature.c1
-rw-r--r--libkmod/libkmod-util.c326
-rw-r--r--libkmod/libkmod-util.h58
-rw-r--r--libkmod/libkmod.c2
-rw-r--r--shared/.gitignore5
-rw-r--r--shared/util.c345
-rw-r--r--shared/util.h64
-rw-r--r--testsuite/init_module.c2
-rw-r--r--testsuite/test-util.c2
-rw-r--r--testsuite/testsuite.c2
-rw-r--r--tools/depmod.c1
-rw-r--r--tools/static-nodes.c3
19 files changed, 460 insertions, 368 deletions
diff --git a/Makefile.am b/Makefile.am
index bc5df92..db05023 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -43,7 +43,11 @@ LIBKMOD_REVISION=8
LIBKMOD_AGE=2
noinst_LTLIBRARIES = libkmod/libkmod-util.la
-libkmod_libkmod_util_la_SOURCES = libkmod/libkmod-hash.c \
+libkmod_libkmod_util_la_SOURCES = shared/macro.h \
+ shared/missing.h\
+ shared/util.c \
+ shared/util.h \
+ libkmod/libkmod-hash.c \
libkmod/libkmod-hash.h \
libkmod/libkmod-array.c \
libkmod/libkmod-array.h \
diff --git a/libkmod/libkmod-config.c b/libkmod/libkmod-config.c
index 0953924..3bbc866 100644
--- a/libkmod/libkmod-config.c
+++ b/libkmod/libkmod-config.c
@@ -31,6 +31,8 @@
#include <sys/types.h>
#include <dirent.h>
+#include <shared/util.h>
+
#include "libkmod.h"
#include "libkmod-internal.h"
diff --git a/libkmod/libkmod-elf.c b/libkmod/libkmod-elf.c
index 53335f3..5144099 100644
--- a/libkmod/libkmod-elf.c
+++ b/libkmod/libkmod-elf.c
@@ -24,6 +24,8 @@
#include <assert.h>
#include <errno.h>
+#include <shared/util.h>
+
#include "libkmod.h"
#include "libkmod-internal.h"
diff --git a/libkmod/libkmod-file.c b/libkmod/libkmod-file.c
index feb4a15..f32ce2a 100644
--- a/libkmod/libkmod-file.c
+++ b/libkmod/libkmod-file.c
@@ -28,6 +28,8 @@
#include <sys/mman.h>
#include <unistd.h>
+#include <shared/util.h>
+
#include "libkmod.h"
#include "libkmod-internal.h"
diff --git a/libkmod/libkmod-hash.c b/libkmod/libkmod-hash.c
index eb7afb7..9b4d1f1 100644
--- a/libkmod/libkmod-hash.c
+++ b/libkmod/libkmod-hash.c
@@ -18,6 +18,8 @@
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include <shared/util.h>
+
#include "libkmod.h"
#include "libkmod-hash.h"
diff --git a/libkmod/libkmod-index.c b/libkmod/libkmod-index.c
index 1c64743..db431d2 100644
--- a/libkmod/libkmod-index.c
+++ b/libkmod/libkmod-index.c
@@ -28,6 +28,7 @@
#include <inttypes.h>
#include <shared/macro.h>
+#include <shared/util.h>
#include "libkmod-internal.h"
#include "libkmod-index.h"
diff --git a/libkmod/libkmod-module.c b/libkmod/libkmod-module.c
index b81b451..b22f400 100644
--- a/libkmod/libkmod-module.c
+++ b/libkmod/libkmod-module.c
@@ -41,6 +41,8 @@
#include <linux/module.h>
#endif
+#include <shared/util.h>
+
#include "libkmod.h"
#include "libkmod-internal.h"
diff --git a/libkmod/libkmod-signature.c b/libkmod/libkmod-signature.c
index 8fe5b40..96712e4 100644
--- a/libkmod/libkmod-signature.c
+++ b/libkmod/libkmod-signature.c
@@ -25,6 +25,7 @@
#include <stdio.h>
#include <shared/missing.h>
+#include <shared/util.h>
#include "libkmod-internal.h"
diff --git a/libkmod/libkmod-util.c b/libkmod/libkmod-util.c
index df12433..ea90bbb 100644
--- a/libkmod/libkmod-util.c
+++ b/libkmod/libkmod-util.c
@@ -20,88 +20,29 @@
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <stdarg.h>
#include <unistd.h>
-#include <errno.h>
#include <string.h>
#include <ctype.h>
+#include <shared/util.h>
+
#include "libkmod.h"
#include "libkmod-internal.h"
-/*
- * Read one logical line from a configuration file.
- *
- * Line endings may be escaped with backslashes, to form one logical line from
- * several physical lines. No end of line character(s) are included in the
- * result.
- *
- * If linenum is not NULL, it is incremented by the number of physical lines
- * which have been read.
- */
-char *getline_wrapped(FILE *fp, unsigned int *linenum)
-{
- int size = 256;
- int i = 0, n = 0;
- _cleanup_free_ char *buf = malloc(size);
-
- if (buf == NULL)
- return NULL;
-
- for(;;) {
- int ch = getc_unlocked(fp);
-
- switch(ch) {
- case EOF:
- if (i == 0)
- return NULL;
- /* else fall through */
-
- case '\n':
- n++;
-
- {
- char *ret;
- if (i == size) {
- ret = realloc(buf, size + 1);
- if (!ret)
- return NULL;
- } else
- ret = buf;
- ret[i] = '\0';
- buf = NULL;
- if (linenum)
- *linenum += n;
- return ret;
- }
-
- case '\\':
- ch = getc_unlocked(fp);
-
- if (ch == '\n') {
- n++;
- continue;
- }
- /* else fall through */
-
- default:
- buf[i++] = ch;
-
- if (i == size) {
- char *tmp;
- size *= 2;
- tmp = realloc(buf, size);
- if (!tmp)
- return NULL;
- buf = tmp;
- }
- }
- }
-}
+const struct kmod_ext kmod_exts[] = {
+ {".ko", sizeof(".ko") - 1},
+#ifdef ENABLE_ZLIB
+ {".ko.gz", sizeof(".ko.gz") - 1},
+#endif
+#ifdef ENABLE_XZ
+ {".ko.xz", sizeof(".ko.xz") - 1},
+#endif
+ { }
+};
inline int alias_normalize(const char *alias, char buf[PATH_MAX], size_t *len)
{
@@ -176,232 +117,6 @@ char *path_to_modname(const char *path, char buf[PATH_MAX], size_t *len)
return modname_normalize(modname, buf, len);
}
-inline void *memdup(const void *p, size_t n)
-{
- void *r = malloc(n);
-
- if (r == NULL)
- return NULL;
-
- return memcpy(r, p, n);
-}
-
-ssize_t read_str_safe(int fd, char *buf, size_t buflen)
-{
- size_t todo = buflen - 1;
- size_t done = 0;
-
- do {
- ssize_t r = read(fd, buf + done, todo);
-
- if (r == 0)
- break;
- else if (r > 0) {
- todo -= r;
- done += r;
- } else {
- if (errno == EAGAIN || errno == EWOULDBLOCK ||
- errno == EINTR)
- continue;
- else
- return -errno;
- }
- } while (todo > 0);
-
- buf[done] = '\0';
- return done;
-}
-
-ssize_t write_str_safe(int fd, const char *buf, size_t buflen)
-{
- size_t todo = buflen;
- size_t done = 0;
-
- do {
- ssize_t r = write(fd, buf + done, todo);
-
- if (r == 0)
- break;
- else if (r > 0) {
- todo -= r;
- done += r;
- } else {
- if (errno == EAGAIN || errno == EWOULDBLOCK ||
- errno == EINTR)
- continue;
- else
- return -errno;
- }
- } while (todo > 0);
-
- return done;
-}
-
-int read_str_long(int fd, long *value, int base)
-{
- char buf[32], *end;
- long v;
- int err;
-
- *value = 0;
- err = read_str_safe(fd, buf, sizeof(buf));
- if (err < 0)
- return err;
- errno = 0;
- v = strtol(buf, &end, base);
- if (end == buf || !isspace(*end))
- return -EINVAL;
-
- *value = v;
- return 0;
-}
-
-int read_str_ulong(int fd, unsigned long *value, int base)
-{
- char buf[32], *end;
- long v;
- int err;
-
- *value = 0;
- err = read_str_safe(fd, buf, sizeof(buf));
- if (err < 0)
- return err;
- errno = 0;
- v = strtoul(buf, &end, base);
- if (end == buf || !isspace(*end))
- return -EINVAL;
- *value = v;
- return 0;
-}
-
-char *strchr_replace(char *s, int c, char r)
-{
- char *p;
-
- for (p = s; *p != '\0'; p++)
- if (*p == c)
- *p = r;
-
- return s;
-}
-
-bool path_is_absolute(const char *p)
-{
- assert(p != NULL);
-
- return p[0] == '/';
-}
-
-char *path_make_absolute_cwd(const char *p)
-{
- _cleanup_free_ char *cwd = NULL;
- size_t plen, cwdlen;
- char *r;
-
- if (path_is_absolute(p))
- return strdup(p);
-
- cwd = get_current_dir_name();
- if (!cwd)
- return NULL;
-
- plen = strlen(p);
- cwdlen = strlen(cwd);
-
- /* cwd + '/' + p + '\0' */
- r = realloc(cwd, cwdlen + 1 + plen + 1);
- if (r == NULL)
- return NULL;
-
- cwd = NULL;
- r[cwdlen] = '/';
- memcpy(&r[cwdlen + 1], p, plen + 1);
-
- return r;
-}
-
-static inline int is_dir(const char *path)
-{
- struct stat st;
-
- if (stat(path, &st) >= 0)
- return S_ISDIR(st.st_mode);
-
- return -errno;
-}
-
-int mkdir_p(const char *path, int len, mode_t mode)
-{
- char *start, *end;
-
- start = strndupa(path, len);
- end = start + len;
-
- /*
- * scan backwards, replacing '/' with '\0' while the component doesn't
- * exist
- */
- for (;;) {
- int r = is_dir(start);
- if (r > 0) {
- end += strlen(end);
-
- if (end == start + len)
- return 0;
-
- /* end != start, since it would be caught on the first
- * iteration */
- *end = '/';
- break;
- } else if (r == 0)
- return -ENOTDIR;
-
- if (end == start)
- break;
-
- *end = '\0';
-
- /* Find the next component, backwards, discarding extra '/'*/
- while (end > start && *end != '/')
- end--;
-
- while (end > start && *(end - 1) == '/')
- end--;
- }
-
- for (; end < start + len;) {
- if (mkdir(start, mode) < 0 && errno != EEXIST)
- return -errno;
-
- end += strlen(end);
- *end = '/';
- }
-
- return 0;
-}
-
-int mkdir_parents(const char *path, mode_t mode)
-{
- char *end = strrchr(path, '/');
-
- /* no parent directories */
- if (end == NULL)
- return 0;
-
- return mkdir_p(path, end - path, mode);
-}
-
-const struct kmod_ext kmod_exts[] = {
- {".ko", sizeof(".ko") - 1},
-#ifdef ENABLE_ZLIB
- {".ko.gz", sizeof(".ko.gz") - 1},
-#endif
-#ifdef ENABLE_XZ
- {".ko.xz", sizeof(".ko.xz") - 1},
-#endif
- { }
-};
-
bool path_ends_with_kmod_ext(const char *path, size_t len)
{
const struct kmod_ext *eitr;
@@ -415,20 +130,3 @@ bool path_ends_with_kmod_ext(const char *path, size_t len)
return false;
}
-
-#define USEC_PER_SEC 1000000ULL
-#define NSEC_PER_USEC 1000ULL
-unsigned long long ts_usec(const struct timespec *ts)
-{
- return (unsigned long long) ts->tv_sec * USEC_PER_SEC +
- (unsigned long long) ts->tv_nsec / NSEC_PER_USEC;
-}
-
-unsigned long long stat_mstamp(const struct stat *st)
-{
-#ifdef HAVE_STRUCT_STAT_ST_MTIM
- return ts_usec(&st->st_mtim);
-#else
- return (unsigned long long) st->st_mtime;
-#endif
-}
diff --git a/libkmod/libkmod-util.h b/libkmod/libkmod-util.h
index f3e9c68..3eb5e0c 100644
--- a/libkmod/libkmod-util.h
+++ b/libkmod/libkmod-util.h
@@ -2,64 +2,18 @@
#include <limits.h>
#include <stdbool.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
+#include <stddef.h>
#include <shared/macro.h>
-char *getline_wrapped(FILE *fp, unsigned int *linenum) __attribute__((nonnull(1)));
-#define streq(a, b) (strcmp((a), (b)) == 0)
-#define strstartswith(a, b) (strncmp(a, b, strlen(b)) == 0)
-void *memdup(const void *p, size_t n) __attribute__((nonnull(1)));
-
-ssize_t read_str_safe(int fd, char *buf, size_t buflen) _must_check_ __attribute__((nonnull(2)));
-ssize_t write_str_safe(int fd, const char *buf, size_t buflen) __attribute__((nonnull(2)));
-int read_str_long(int fd, long *value, int base) _must_check_ __attribute__((nonnull(2)));
-int read_str_ulong(int fd, unsigned long *value, int base) _must_check_ __attribute__((nonnull(2)));
-char *strchr_replace(char *s, int c, char r);
-bool path_is_absolute(const char *p) _must_check_ __attribute__((nonnull(1)));
-char *path_make_absolute_cwd(const char *p) _must_check_ __attribute__((nonnull(1)));
-int mkdir_p(const char *path, int len, mode_t mode);
-int mkdir_parents(const char *path, mode_t mode);
-int alias_normalize(const char *alias, char buf[PATH_MAX], size_t *len) _must_check_ __attribute__((nonnull(1,2)));
-char *modname_normalize(const char *modname, char buf[PATH_MAX], size_t *len) __attribute__((nonnull(1, 2)));
-char *path_to_modname(const char *path, char buf[PATH_MAX], size_t *len) __attribute__((nonnull(2)));
+#define KMOD_EXT_UNC 0
extern const struct kmod_ext {
const char *ext;
size_t len;
} kmod_exts[];
-#define KMOD_EXT_UNC 0
-bool path_ends_with_kmod_ext(const char *path, size_t len) __attribute__((nonnull(1)));
-
-unsigned long long stat_mstamp(const struct stat *st);
-unsigned long long ts_usec(const struct timespec *ts);
-#define get_unaligned(ptr) \
-({ \
- struct __attribute__((packed)) { \
- typeof(*(ptr)) __v; \
- } *__p = (typeof(__p)) (ptr); \
- __p->__v; \
-})
-
-#define put_unaligned(val, ptr) \
-do { \
- struct __attribute__((packed)) { \
- typeof(*(ptr)) __v; \
- } *__p = (typeof(__p)) (ptr); \
- __p->__v = (val); \
-} while(0)
-
-static _always_inline_ unsigned int ALIGN_POWER2(unsigned int u)
-{
- return 1 << ((sizeof(u) * 8) - __builtin_clz(u - 1));
-}
-
-static inline void freep(void *p) {
- free(*(void**) p);
-}
-
-#define _cleanup_free_ _cleanup_(freep)
+int alias_normalize(const char *alias, char buf[PATH_MAX], size_t *len) _must_check_ __attribute__((nonnull(1,2)));
+char *modname_normalize(const char *modname, char buf[PATH_MAX], size_t *len) __attribute__((nonnull(1, 2)));
+char *path_to_modname(const char *path, char buf[PATH_MAX], size_t *len) __attribute__((nonnull(2)));
+bool path_ends_with_kmod_ext(const char *path, size_t len) __attribute__((nonnull(1)));
diff --git a/libkmod/libkmod.c b/libkmod/libkmod.c
index babd73f..89d70c3 100644
--- a/libkmod/libkmod.c
+++ b/libkmod/libkmod.c
@@ -32,6 +32,8 @@
#include <sys/utsname.h>
#include <sys/stat.h>
+#include <shared/util.h>
+
#include "libkmod.h"
#include "libkmod-internal.h"
#include "libkmod-index.h"
diff --git a/shared/.gitignore b/shared/.gitignore
new file mode 100644
index 0000000..088ef79
--- /dev/null
+++ b/shared/.gitignore
@@ -0,0 +1,5 @@
+.dirstamp
+.deps/
+.libs/
+*.la
+*.lo
diff --git a/shared/util.c b/shared/util.c
new file mode 100644
index 0000000..2d44107
--- /dev/null
+++ b/shared/util.c
@@ -0,0 +1,345 @@
+/*
+ * kmod - interface to kernel module operations
+ *
+ * Copyright (C) 2011-2013 ProFUSION embedded systems
+ * Copyright (C) 2012 Lucas De Marchi <lucas.de.marchi@gmail.com>
+ * Copyright (C) 2013-2014 Intel Corporation. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <stdarg.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <ctype.h>
+
+#include <shared/util.h>
+
+#define USEC_PER_SEC 1000000ULL
+#define NSEC_PER_USEC 1000ULL
+
+/* string handling functions and memory allocations */
+/* ************************************************************************ */
+
+void *memdup(const void *p, size_t n)
+{
+ void *r = malloc(n);
+
+ if (r == NULL)
+ return NULL;
+
+ return memcpy(r, p, n);
+}
+
+char *strchr_replace(char *s, int c, char r)
+{
+ char *p;
+
+ for (p = s; *p != '\0'; p++) {
+ if (*p == c)
+ *p = r;
+ }
+
+ return s;
+}
+
+/* read-like and fread-like functions */
+/* ************************************************************************ */
+ssize_t read_str_safe(int fd, char *buf, size_t buflen)
+{
+ size_t todo = buflen - 1;
+ size_t done = 0;
+
+ do {
+ ssize_t r = read(fd, buf + done, todo);
+
+ if (r == 0)
+ break;
+ else if (r > 0) {
+ todo -= r;
+ done += r;
+ } else {
+ if (errno == EAGAIN || errno == EWOULDBLOCK ||
+ errno == EINTR)
+ continue;
+ else
+ return -errno;
+ }
+ } while (todo > 0);
+
+ buf[done] = '\0';
+ return done;
+}
+
+ssize_t write_str_safe(int fd, const char *buf, size_t buflen)
+{
+ size_t todo = buflen;
+ size_t done = 0;
+
+ do {
+ ssize_t r = write(fd, buf + done, todo);
+
+ if (r == 0)
+ break;
+ else if (r > 0) {
+ todo -= r;
+ done += r;
+ } else {
+ if (errno == EAGAIN || errno == EWOULDBLOCK ||
+ errno == EINTR)
+ continue;
+ else
+ return -errno;
+ }
+ } while (todo > 0);
+
+ return done;
+}
+
+int read_str_long(int fd, long *value, int base)
+{
+ char buf[32], *end;
+ long v;
+ int err;
+
+ *value = 0;
+ err = read_str_safe(fd, buf, sizeof(buf));
+ if (err < 0)
+ return err;
+ errno = 0;
+ v = strtol(buf, &end, base);
+ if (end == buf || !isspace(*end))
+ return -EINVAL;
+
+ *value = v;
+ return 0;
+}
+
+int read_str_ulong(int fd, unsigned long *value, int base)
+{
+ char buf[32], *end;
+ long v;
+ int err;
+
+ *value = 0;
+ err = read_str_safe(fd, buf, sizeof(buf));
+ if (err < 0)
+ return err;
+ errno = 0;
+ v = strtoul(buf, &end, base);
+ if (end == buf || !isspace(*end))
+ return -EINVAL;
+ *value = v;
+ return 0;
+}
+
+/*
+ * Read one logical line from a configuration file.
+ *
+ * Line endings may be escaped with backslashes, to form one logical line from
+ * several physical lines. No end of line character(s) are included in the
+ * result.
+ *
+ * If linenum is not NULL, it is incremented by the number of physical lines
+ * which have been read.
+ */
+char *getline_wrapped(FILE *fp, unsigned int *linenum)
+{
+ int size = 256;
+ int i = 0, n = 0;
+ _cleanup_free_ char *buf = malloc(size);
+
+ if (buf == NULL)
+ return NULL;
+
+ for(;;) {
+ int ch = getc_unlocked(fp);
+
+ switch(ch) {
+ case EOF:
+ if (i == 0)
+ return NULL;
+ /* else fall through */
+
+ case '\n':
+ n++;
+
+ {
+ char *ret;
+ if (i == size) {
+ ret = realloc(buf, size + 1);
+ if (!ret)
+ return NULL;
+ } else
+ ret = buf;
+ ret[i] = '\0';
+ buf = NULL;
+ if (linenum)
+ *linenum += n;
+ return ret;
+ }
+
+ case '\\':
+ ch = getc_unlocked(fp);
+
+ if (ch == '\n') {
+ n++;
+ continue;
+ }
+ /* else fall through */
+
+ default:
+ buf[i++] = ch;
+
+ if (i == size) {
+ char *tmp;
+ size *= 2;
+ tmp = realloc(buf, size);
+ if (!tmp)
+ return NULL;
+ buf = tmp;
+ }
+ }
+ }
+}
+
+/* path handling functions */
+/* ************************************************************************ */
+
+bool path_is_absolute(const char *p)
+{
+ assert(p != NULL);
+
+ return p[0] == '/';
+}
+
+char *path_make_absolute_cwd(const char *p)
+{
+ _cleanup_free_ char *cwd = NULL;
+ size_t plen, cwdlen;
+ char *r;
+
+ if (path_is_absolute(p))
+ return strdup(p);
+
+ cwd = get_current_dir_name();
+ if (!cwd)
+ return NULL;
+
+ plen = strlen(p);
+ cwdlen = strlen(cwd);
+
+ /* cwd + '/' + p + '\0' */
+ r = realloc(cwd, cwdlen + 1 + plen + 1);
+ if (r == NULL)
+ return NULL;
+
+ cwd = NULL;
+ r[cwdlen] = '/';
+ memcpy(&r[cwdlen + 1], p, plen + 1);
+
+ return r;
+}
+
+static inline int is_dir(const char *path)
+{
+ struct stat st;
+
+ if (stat(path, &st) >= 0)
+ return S_ISDIR(st.st_mode);
+
+ return -errno;
+}
+
+int mkdir_p(const char *path, int len, mode_t mode)
+{
+ char *start, *end;
+
+ start = strndupa(path, len);
+ end = start + len;
+
+ /*
+ * scan backwards, replacing '/' with '\0' while the component doesn't
+ * exist
+ */
+ for (;;) {
+ int r = is_dir(start);
+ if (r > 0) {
+ end += strlen(end);
+
+ if (end == start + len)
+ return 0;
+
+ /* end != start, since it would be caught on the first
+ * iteration */
+ *end = '/';
+ break;
+ } else if (r == 0)
+ return -ENOTDIR;
+
+ if (end == start)
+ break;
+
+ *end = '\0';
+
+ /* Find the next component, backwards, discarding extra '/'*/
+ while (end > start && *end != '/')
+ end--;
+
+ while (end > start && *(end - 1) == '/')
+ end--;
+ }
+
+ for (; end < start + len;) {
+ if (mkdir(start, mode) < 0 && errno != EEXIST)
+ return -errno;
+
+ end += strlen(end);
+ *end = '/';
+ }
+
+ return 0;
+}
+
+int mkdir_parents(const char *path, mode_t mode)
+{
+ char *end = strrchr(path, '/');
+
+ /* no parent directories */
+ if (end == NULL)
+ return 0;
+
+ return mkdir_p(path, end - path, mode);
+}
+
+unsigned long long ts_usec(const struct timespec *ts)
+{
+ return (unsigned long long) ts->tv_sec * USEC_PER_SEC +
+ (unsigned long long) ts->tv_nsec / NSEC_PER_USEC;
+}
+
+unsigned long long stat_mstamp(const struct stat *st)
+{
+#ifdef HAVE_STRUCT_STAT_ST_MTIM
+ return ts_usec(&st->st_mtim);
+#else
+ return (unsigned long long) st->st_mtime;
+#endif
+}
diff --git a/shared/util.h b/shared/util.h
new file mode 100644
index 0000000..1ed7214
--- /dev/null
+++ b/shared/util.h
@@ -0,0 +1,64 @@
+#pragma once
+
+#include <limits.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <shared/macro.h>
+
+/* string handling functions and memory allocations */
+/* ************************************************************************ */
+#define streq(a, b) (strcmp((a), (b)) == 0)
+#define strstartswith(a, b) (strncmp(a, b, strlen(b)) == 0)
+char *strchr_replace(char *s, int c, char r);
+void *memdup(const void *p, size_t n) __attribute__((nonnull(1)));
+
+/* read-like and fread-like functions */
+/* ************************************************************************ */
+ssize_t read_str_safe(int fd, char *buf, size_t buflen) _must_check_ __attribute__((nonnull(2)));
+ssize_t write_str_safe(int fd, const char *buf, size_t buflen) __attribute__((nonnull(2)));
+int read_str_long(int fd, long *value, int base) _must_check_ __attribute__((nonnull(2)));
+int read_str_ulong(int fd, unsigned long *value, int base) _must_check_ __attribute__((nonnull(2)));
+char *getline_wrapped(FILE *fp, unsigned int *linenum) __attribute__((nonnull(1)));
+
+/* path handling functions */
+/* ************************************************************************ */
+bool path_is_absolute(const char *p) _must_check_ __attribute__((nonnull(1)));
+char *path_make_absolute_cwd(const char *p) _must_check_ __attribute__((nonnull(1)));
+int mkdir_p(const char *path, int len, mode_t mode);
+int mkdir_parents(const char *path, mode_t mode);
+unsigned long long stat_mstamp(const struct stat *st);
+unsigned long long ts_usec(const struct timespec *ts);
+
+/* endianess and alignments */
+/* ************************************************************************ */
+#define get_unaligned(ptr) \
+({ \
+ struct __attribute__((packed)) { \
+ typeof(*(ptr)) __v; \
+ } *__p = (typeof(__p)) (ptr); \
+ __p->__v; \
+})
+
+#define put_unaligned(val, ptr) \
+do { \
+ struct __attribute__((packed)) { \
+ typeof(*(ptr)) __v; \
+ } *__p = (typeof(__p)) (ptr); \
+ __p->__v = (val); \
+} while(0)
+
+static _always_inline_ unsigned int ALIGN_POWER2(unsigned int u)
+{
+ return 1 << ((sizeof(u) * 8) - __builtin_clz(u - 1));
+}
+
+/* misc */
+/* ************************************************************************ */
+static inline void freep(void *p) {
+ free(*(void**) p);
+}
+#define _cleanup_free_ _cleanup_(freep)
diff --git a/testsuite/init_module.c b/testsuite/init_module.c
index 269a471..edbba07 100644
--- a/testsuite/init_module.c
+++ b/testsuite/init_module.c
@@ -40,6 +40,8 @@
#include <sys/utsname.h>
#include <unistd.h>
+#include <shared/util.h>
+
/* kmod_elf_get_section() is not exported, we need the private header */
#include <libkmod-internal.h>
diff --git a/testsuite/test-util.c b/testsuite/test-util.c
index 4fedb24..8b6474b 100644
--- a/testsuite/test-util.c
+++ b/testsuite/test-util.c
@@ -22,6 +22,8 @@
#include <string.h>
#include <libkmod.h>
+#include <shared/util.h>
+
#include "libkmod-util.h"
#include "testsuite.h"
diff --git a/testsuite/testsuite.c b/testsuite/testsuite.c
index 9330e88..54b662b 100644
--- a/testsuite/testsuite.c
+++ b/testsuite/testsuite.c
@@ -32,6 +32,8 @@
#include <sys/stat.h>
#include <sys/wait.h>
+#include <shared/util.h>
+
#include "libkmod-util.h"
#include "testsuite.h"
diff --git a/tools/depmod.c b/tools/depmod.c
index 41cad0b..274d020 100644
--- a/tools/depmod.c
+++ b/tools/depmod.c
@@ -22,6 +22,7 @@
#include "libkmod-util.h"
#include <shared/macro.h>
+#include <shared/util.h>
#include <stdio.h>
#include <stdlib.h>
diff --git a/tools/static-nodes.c b/tools/static-nodes.c
index 0195390..b7ea232 100644
--- a/tools/static-nodes.c
+++ b/tools/static-nodes.c
@@ -30,7 +30,8 @@
#include <sys/utsname.h>
#include <sys/stat.h>
#include <sys/types.h>
-#include "libkmod-util.h"
+
+#include <shared/util.h>
#include "kmod.h"