* [PATCH] FTW Port for Newlib
@ 2021-01-20 22:14 Eshan Dhawan
2021-02-08 16:33 ` Eshan Dhawan
0 siblings, 1 reply; 3+ messages in thread
From: Eshan Dhawan @ 2021-01-20 22:14 UTC (permalink / raw)
To: newlib
From: Eshan dhawan <eshandhawan51@gmail.com>
Signed-off-by: Eshan Dhawan <eshandhawan51@gmail.com>
---
newlib/libc/include/ftw.h | 66 +++++++++++++++
newlib/libc/posix/Makefile.am | 2 +-
newlib/libc/posix/ftw.c | 33 ++++++++
newlib/libc/posix/nftw.c | 154 ++++++++++++++++++++++++++++++++++
4 files changed, 254 insertions(+), 1 deletion(-)
create mode 100644 newlib/libc/include/ftw.h
create mode 100644 newlib/libc/posix/ftw.c
create mode 100644 newlib/libc/posix/nftw.c
diff --git a/newlib/libc/include/ftw.h b/newlib/libc/include/ftw.h
new file mode 100644
index 000000000..8de1e1e5c
--- /dev/null
+++ b/newlib/libc/include/ftw.h
@@ -0,0 +1,66 @@
+/*
+* Copyright © 2005-2020 Rich Felker, et al.
+*
+* Permission is hereby granted, free of charge, to any person obtaining
+* a copy of this software and associated documentation files (the
+* "Software"), to deal in the Software without restriction, including
+* without limitation the rights to use, copy, modify, merge, publish,
+* distribute, sublicense, and/or sell copies of the Software, and to
+* permit persons to whom the Software is furnished to do so, subject to
+* the following conditions:
+*
+* The above copyright notice and this permission notice shall be
+* included in all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#ifndef _FTW_H
+#define _FTW_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <sys/features.h>
+#include <sys/stat.h>
+
+/*
+ * Valid flags for the 3rd argument to the function that is passed as the
+ * second argument to ftw(3) and nftw(3). Say it three times fast!
+ */
+#define FTW_F 0 /* File. */
+#define FTW_D 1 /* Directory. */
+#define FTW_DNR 2 /* Directory without read permission. */
+#define FTW_DP 3 /* Directory with subdirectories visited. */
+#define FTW_NS 4 /* Unknown type; stat() failed. */
+#define FTW_SL 5 /* Symbolic link. */
+#define FTW_SLN 6 /* Sym link that names a nonexistent file. */
+
+/*
+ * Flags for use as the 4th argument to nftw(3). These may be ORed together.
+ */
+#define FTW_PHYS 0x01 /* Physical walk, don't follow sym links. */
+#define FTW_MOUNT 0x02 /* The walk does not cross a mount point. */
+#define FTW_DEPTH 0x04 /* Subdirs visited before the dir itself. */
+#define FTW_CHDIR 0x08 /* Change to a directory before reading it. */
+
+struct FTW {
+ int base;
+ int level;
+};
+
+int ftw(const char *, int (*)(const char *, const struct stat *, int), int);
+int nftw(const char *, int (*)(const char *, const struct stat *, int, struct FTW *), int, int);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/newlib/libc/posix/Makefile.am b/newlib/libc/posix/Makefile.am
index 6cdee1df0..5a358f782 100644
--- a/newlib/libc/posix/Makefile.am
+++ b/newlib/libc/posix/Makefile.am
@@ -10,7 +10,7 @@ GENERAL_SOURCES = \
opendir.c readdir.c readdir_r.c \
regcomp.c regerror.c regexec.c regfree.c \
rewinddir.c sleep.c usleep.c \
- telldir.c
+ telldir.c ftw.c nftw.c
ELIX_2_SOURCES = \
scandir.c seekdir.c
diff --git a/newlib/libc/posix/ftw.c b/newlib/libc/posix/ftw.c
new file mode 100644
index 000000000..18cfc24cb
--- /dev/null
+++ b/newlib/libc/posix/ftw.c
@@ -0,0 +1,33 @@
+/*
+* Copyright © 2005-2020 Rich Felker, et al.
+*
+* Permission is hereby granted, free of charge, to any person obtaining
+* a copy of this software and associated documentation files (the
+* "Software"), to deal in the Software without restriction, including
+* without limitation the rights to use, copy, modify, merge, publish,
+* distribute, sublicense, and/or sell copies of the Software, and to
+* permit persons to whom the Software is furnished to do so, subject to
+* the following conditions:
+*
+* The above copyright notice and this permission notice shall be
+* included in all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#include <ftw.h>
+
+int ftw(const char *path, int (*fn)(const char *, const struct stat *, int), int fd_limit)
+{
+ /* The following cast assumes that calling a function with one
+ * argument more than it needs behaves as expected. This is
+ * actually undefined, but works on all real-world machines. */
+ return nftw(path, (int (*)())fn, fd_limit, FTW_PHYS);
+}
+
diff --git a/newlib/libc/posix/nftw.c b/newlib/libc/posix/nftw.c
new file mode 100644
index 000000000..f4f55f341
--- /dev/null
+++ b/newlib/libc/posix/nftw.c
@@ -0,0 +1,154 @@
+/*
+* Copyright © 2005-2020 Rich Felker, et al.
+*
+* Permission is hereby granted, free of charge, to any person obtaining
+* a copy of this software and associated documentation files (the
+* "Software"), to deal in the Software without restriction, including
+* without limitation the rights to use, copy, modify, merge, publish,
+* distribute, sublicense, and/or sell copies of the Software, and to
+* permit persons to whom the Software is furnished to do so, subject to
+* the following conditions:
+*
+* The above copyright notice and this permission notice shall be
+* included in all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#include <ftw.h>
+#include <dirent.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <unistd.h>
+#include <string.h>
+#include <limits.h>
+#include <pthread.h>
+
+struct history
+{
+ struct history *chain;
+ dev_t dev;
+ ino_t ino;
+ int level;
+ int base;
+};
+
+#undef dirfd
+#define dirfd(d) (*(int *)d)
+
+static int do_nftw(char *path, int (*fn)(const char *, const struct stat *, int, struct FTW *), int fd_limit, int flags, struct history *h)
+{
+ size_t l = strlen(path), j = l && path[l-1]=='/' ? l-1 : l;
+ struct stat st;
+ struct history new;
+ int type;
+ int r;
+ struct FTW lev;
+
+ if ((flags & FTW_PHYS) ? lstat(path, &st) : stat(path, &st) < 0) {
+ if (!(flags & FTW_PHYS) && errno==ENOENT && !lstat(path, &st))
+ type = FTW_SLN;
+ else if (errno != EACCES) return -1;
+ else type = FTW_NS;
+ } else if (S_ISDIR(st.st_mode)) {
+ if (access(path, R_OK) < 0) type = FTW_DNR;
+ else if (flags & FTW_DEPTH) type = FTW_DP;
+ else type = FTW_D;
+ } else if (S_ISLNK(st.st_mode)) {
+ if (flags & FTW_PHYS) type = FTW_SL;
+ else type = FTW_SLN;
+ } else {
+ type = FTW_F;
+ }
+
+ if ((flags & FTW_MOUNT) && h && st.st_dev != h->dev)
+ return 0;
+
+ new.chain = h;
+ new.dev = st.st_dev;
+ new.ino = st.st_ino;
+ new.level = h ? h->level+1 : 0;
+ new.base = j+1;
+
+ lev.level = new.level;
+ if (h) {
+ lev.base = h->base;
+ } else {
+ size_t k;
+ for (k=j; k && path[k]=='/'; k--);
+ for (; k && path[k-1]!='/'; k--);
+ lev.base = k;
+ }
+
+ if (!(flags & FTW_DEPTH) && (r=fn(path, &st, type, &lev)))
+ return r;
+
+ for (; h; h = h->chain)
+ if (h->dev == st.st_dev && h->ino == st.st_ino)
+ return 0;
+
+ if ((type == FTW_D || type == FTW_DP) && fd_limit) {
+ DIR *d = opendir(path);
+ if (d) {
+ struct dirent *de;
+ while ((de = readdir(d))) {
+ if (de->d_name[0] == '.'
+ && (!de->d_name[1]
+ || (de->d_name[1]=='.'
+ && !de->d_name[2]))) continue;
+ if (strlen(de->d_name) >= PATH_MAX-l) {
+ errno = ENAMETOOLONG;
+ closedir(d);
+ return -1;
+ }
+ path[j]='/';
+ strcpy(path+j+1, de->d_name);
+ if ((r=do_nftw(path, fn, fd_limit-1, flags, &new))) {
+ closedir(d);
+ return r;
+ }
+ }
+ closedir(d);
+ } else if (errno != EACCES) {
+ return -1;
+ }
+ }
+
+ path[l] = 0;
+ if ((flags & FTW_DEPTH) && (r=fn(path, &st, type, &lev)))
+ return r;
+
+ return 0;
+}
+
+int nftw(const char *path, int (*fn)(const char *, const struct stat *, int, struct FTW *), int fd_limit, int flags)
+{
+ int r, cs;
+ size_t l;
+ char pathbuf[PATH_MAX+1];
+
+ if (fd_limit <= 0) return 0;
+
+ l = strlen(path);
+ if (l > PATH_MAX) {
+ errno = ENAMETOOLONG;
+ return -1;
+ }
+ memcpy(pathbuf, path, l+1);
+
+#ifdef _STDIO_WITH_THREAD_CANCELLATION_SUPPORT
+ pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
+#endif
+ r = do_nftw(pathbuf, fn, fd_limit, flags, NULL);
+#ifdef _STDIO_WITH_THREAD_CANCELLATION_SUPPORT
+ pthread_setcancelstate(cs, 0);
+#endif
+ return r;
+}
+
--
2.27.0
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] FTW Port for Newlib
2021-01-20 22:14 [PATCH] FTW Port for Newlib Eshan Dhawan
@ 2021-02-08 16:33 ` Eshan Dhawan
2021-02-09 10:34 ` Corinna Vinschen
0 siblings, 1 reply; 3+ messages in thread
From: Eshan Dhawan @ 2021-02-08 16:33 UTC (permalink / raw)
To: Newlib
Ping !!
On Thu, Jan 21, 2021 at 3:44 AM Eshan Dhawan <eshandhawan51@gmail.com>
wrote:
> From: Eshan dhawan <eshandhawan51@gmail.com>
>
> Signed-off-by: Eshan Dhawan <eshandhawan51@gmail.com>
> ---
> newlib/libc/include/ftw.h | 66 +++++++++++++++
> newlib/libc/posix/Makefile.am | 2 +-
> newlib/libc/posix/ftw.c | 33 ++++++++
> newlib/libc/posix/nftw.c | 154 ++++++++++++++++++++++++++++++++++
> 4 files changed, 254 insertions(+), 1 deletion(-)
> create mode 100644 newlib/libc/include/ftw.h
> create mode 100644 newlib/libc/posix/ftw.c
> create mode 100644 newlib/libc/posix/nftw.c
>
> diff --git a/newlib/libc/include/ftw.h b/newlib/libc/include/ftw.h
> new file mode 100644
> index 000000000..8de1e1e5c
> --- /dev/null
> +++ b/newlib/libc/include/ftw.h
> @@ -0,0 +1,66 @@
> +/*
> +* Copyright © 2005-2020 Rich Felker, et al.
> +*
> +* Permission is hereby granted, free of charge, to any person obtaining
> +* a copy of this software and associated documentation files (the
> +* "Software"), to deal in the Software without restriction, including
> +* without limitation the rights to use, copy, modify, merge, publish,
> +* distribute, sublicense, and/or sell copies of the Software, and to
> +* permit persons to whom the Software is furnished to do so, subject to
> +* the following conditions:
> +*
> +* The above copyright notice and this permission notice shall be
> +* included in all copies or substantial portions of the Software.
> +*
> +* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> +* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> +* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
> +* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
> +* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
> +* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
> +* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
> +*/
> +
> +#ifndef _FTW_H
> +#define _FTW_H
> +
> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> +
> +#include <sys/features.h>
> +#include <sys/stat.h>
> +
> +/*
> + * Valid flags for the 3rd argument to the function that is passed as the
> + * second argument to ftw(3) and nftw(3). Say it three times fast!
> + */
> +#define FTW_F 0 /* File. */
> +#define FTW_D 1 /* Directory. */
> +#define FTW_DNR 2 /* Directory without read
> permission. */
> +#define FTW_DP 3 /* Directory with subdirectories
> visited. */
> +#define FTW_NS 4 /* Unknown type; stat() failed. */
> +#define FTW_SL 5 /* Symbolic link. */
> +#define FTW_SLN 6 /* Sym link that names a
> nonexistent file. */
> +
> +/*
> + * Flags for use as the 4th argument to nftw(3). These may be ORed
> together.
> + */
> +#define FTW_PHYS 0x01 /* Physical walk, don't follow sym
> links. */
> +#define FTW_MOUNT 0x02 /* The walk does not cross a mount
> point. */
> +#define FTW_DEPTH 0x04 /* Subdirs visited before the dir
> itself. */
> +#define FTW_CHDIR 0x08 /* Change to a directory before
> reading it. */
> +
> +struct FTW {
> + int base;
> + int level;
> +};
> +
> +int ftw(const char *, int (*)(const char *, const struct stat *, int),
> int);
> +int nftw(const char *, int (*)(const char *, const struct stat *, int,
> struct FTW *), int, int);
> +
> +#ifdef __cplusplus
> +}
> +#endif
> +
> +#endif
> diff --git a/newlib/libc/posix/Makefile.am b/newlib/libc/posix/Makefile.am
> index 6cdee1df0..5a358f782 100644
> --- a/newlib/libc/posix/Makefile.am
> +++ b/newlib/libc/posix/Makefile.am
> @@ -10,7 +10,7 @@ GENERAL_SOURCES = \
> opendir.c readdir.c readdir_r.c \
> regcomp.c regerror.c regexec.c regfree.c \
> rewinddir.c sleep.c usleep.c \
> - telldir.c
> + telldir.c ftw.c nftw.c
>
> ELIX_2_SOURCES = \
> scandir.c seekdir.c
> diff --git a/newlib/libc/posix/ftw.c b/newlib/libc/posix/ftw.c
> new file mode 100644
> index 000000000..18cfc24cb
> --- /dev/null
> +++ b/newlib/libc/posix/ftw.c
> @@ -0,0 +1,33 @@
> +/*
> +* Copyright © 2005-2020 Rich Felker, et al.
> +*
> +* Permission is hereby granted, free of charge, to any person obtaining
> +* a copy of this software and associated documentation files (the
> +* "Software"), to deal in the Software without restriction, including
> +* without limitation the rights to use, copy, modify, merge, publish,
> +* distribute, sublicense, and/or sell copies of the Software, and to
> +* permit persons to whom the Software is furnished to do so, subject to
> +* the following conditions:
> +*
> +* The above copyright notice and this permission notice shall be
> +* included in all copies or substantial portions of the Software.
> +*
> +* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> +* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> +* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
> +* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
> +* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
> +* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
> +* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
> +*/
> +
> +#include <ftw.h>
> +
> +int ftw(const char *path, int (*fn)(const char *, const struct stat *,
> int), int fd_limit)
> +{
> + /* The following cast assumes that calling a function with one
> + * argument more than it needs behaves as expected. This is
> + * actually undefined, but works on all real-world machines. */
> + return nftw(path, (int (*)())fn, fd_limit, FTW_PHYS);
> +}
> +
> diff --git a/newlib/libc/posix/nftw.c b/newlib/libc/posix/nftw.c
> new file mode 100644
> index 000000000..f4f55f341
> --- /dev/null
> +++ b/newlib/libc/posix/nftw.c
> @@ -0,0 +1,154 @@
> +/*
> +* Copyright © 2005-2020 Rich Felker, et al.
> +*
> +* Permission is hereby granted, free of charge, to any person obtaining
> +* a copy of this software and associated documentation files (the
> +* "Software"), to deal in the Software without restriction, including
> +* without limitation the rights to use, copy, modify, merge, publish,
> +* distribute, sublicense, and/or sell copies of the Software, and to
> +* permit persons to whom the Software is furnished to do so, subject to
> +* the following conditions:
> +*
> +* The above copyright notice and this permission notice shall be
> +* included in all copies or substantial portions of the Software.
> +*
> +* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> +* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> +* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
> +* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
> +* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
> +* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
> +* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
> +*/
> +
> +#include <ftw.h>
> +#include <dirent.h>
> +#include <sys/stat.h>
> +#include <errno.h>
> +#include <unistd.h>
> +#include <string.h>
> +#include <limits.h>
> +#include <pthread.h>
> +
> +struct history
> +{
> + struct history *chain;
> + dev_t dev;
> + ino_t ino;
> + int level;
> + int base;
> +};
> +
> +#undef dirfd
> +#define dirfd(d) (*(int *)d)
> +
> +static int do_nftw(char *path, int (*fn)(const char *, const struct stat
> *, int, struct FTW *), int fd_limit, int flags, struct history *h)
> +{
> + size_t l = strlen(path), j = l && path[l-1]=='/' ? l-1 : l;
> + struct stat st;
> + struct history new;
> + int type;
> + int r;
> + struct FTW lev;
> +
> + if ((flags & FTW_PHYS) ? lstat(path, &st) : stat(path, &st) < 0) {
> + if (!(flags & FTW_PHYS) && errno==ENOENT && !lstat(path,
> &st))
> + type = FTW_SLN;
> + else if (errno != EACCES) return -1;
> + else type = FTW_NS;
> + } else if (S_ISDIR(st.st_mode)) {
> + if (access(path, R_OK) < 0) type = FTW_DNR;
> + else if (flags & FTW_DEPTH) type = FTW_DP;
> + else type = FTW_D;
> + } else if (S_ISLNK(st.st_mode)) {
> + if (flags & FTW_PHYS) type = FTW_SL;
> + else type = FTW_SLN;
> + } else {
> + type = FTW_F;
> + }
> +
> + if ((flags & FTW_MOUNT) && h && st.st_dev != h->dev)
> + return 0;
> +
> + new.chain = h;
> + new.dev = st.st_dev;
> + new.ino = st.st_ino;
> + new.level = h ? h->level+1 : 0;
> + new.base = j+1;
> +
> + lev.level = new.level;
> + if (h) {
> + lev.base = h->base;
> + } else {
> + size_t k;
> + for (k=j; k && path[k]=='/'; k--);
> + for (; k && path[k-1]!='/'; k--);
> + lev.base = k;
> + }
> +
> + if (!(flags & FTW_DEPTH) && (r=fn(path, &st, type, &lev)))
> + return r;
> +
> + for (; h; h = h->chain)
> + if (h->dev == st.st_dev && h->ino == st.st_ino)
> + return 0;
> +
> + if ((type == FTW_D || type == FTW_DP) && fd_limit) {
> + DIR *d = opendir(path);
> + if (d) {
> + struct dirent *de;
> + while ((de = readdir(d))) {
> + if (de->d_name[0] == '.'
> + && (!de->d_name[1]
> + || (de->d_name[1]=='.'
> + && !de->d_name[2]))) continue;
> + if (strlen(de->d_name) >= PATH_MAX-l) {
> + errno = ENAMETOOLONG;
> + closedir(d);
> + return -1;
> + }
> + path[j]='/';
> + strcpy(path+j+1, de->d_name);
> + if ((r=do_nftw(path, fn, fd_limit-1,
> flags, &new))) {
> + closedir(d);
> + return r;
> + }
> + }
> + closedir(d);
> + } else if (errno != EACCES) {
> + return -1;
> + }
> + }
> +
> + path[l] = 0;
> + if ((flags & FTW_DEPTH) && (r=fn(path, &st, type, &lev)))
> + return r;
> +
> + return 0;
> +}
> +
> +int nftw(const char *path, int (*fn)(const char *, const struct stat *,
> int, struct FTW *), int fd_limit, int flags)
> +{
> + int r, cs;
> + size_t l;
> + char pathbuf[PATH_MAX+1];
> +
> + if (fd_limit <= 0) return 0;
> +
> + l = strlen(path);
> + if (l > PATH_MAX) {
> + errno = ENAMETOOLONG;
> + return -1;
> + }
> + memcpy(pathbuf, path, l+1);
> +
> +#ifdef _STDIO_WITH_THREAD_CANCELLATION_SUPPORT
> + pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
> +#endif
> + r = do_nftw(pathbuf, fn, fd_limit, flags, NULL);
> +#ifdef _STDIO_WITH_THREAD_CANCELLATION_SUPPORT
> + pthread_setcancelstate(cs, 0);
> +#endif
> + return r;
> +}
> +
> --
> 2.27.0
>
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] FTW Port for Newlib
2021-02-08 16:33 ` Eshan Dhawan
@ 2021-02-09 10:34 ` Corinna Vinschen
0 siblings, 0 replies; 3+ messages in thread
From: Corinna Vinschen @ 2021-02-09 10:34 UTC (permalink / raw)
To: newlib
On Feb 8 22:03, Eshan Dhawan via Newlib wrote:
> Ping !!
Sorry, I misinterpreted the subject line and thought this is is
one for Jeff.
>
> On Thu, Jan 21, 2021 at 3:44 AM Eshan Dhawan <eshandhawan51@gmail.com>
> wrote:
>
> > From: Eshan dhawan <eshandhawan51@gmail.com>
> >
> > Signed-off-by: Eshan Dhawan <eshandhawan51@gmail.com>
> > ---
> > newlib/libc/include/ftw.h | 66 +++++++++++++++
> > newlib/libc/posix/Makefile.am | 2 +-
> > newlib/libc/posix/ftw.c | 33 ++++++++
> > newlib/libc/posix/nftw.c | 154 ++++++++++++++++++++++++++++++++++
> > 4 files changed, 254 insertions(+), 1 deletion(-)
> > create mode 100644 newlib/libc/include/ftw.h
> > create mode 100644 newlib/libc/posix/ftw.c
> > create mode 100644 newlib/libc/posix/nftw.c
I pushed this now, together with a patch removing Cygwin's ftw.h.
Thanks,
Corinna
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2021-01-20 22:14 [PATCH] FTW Port for Newlib Eshan Dhawan
2021-02-08 16:33 ` Eshan Dhawan
2021-02-09 10:34 ` Corinna Vinschen
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