diff options
Diffstat (limited to 'lib/libc')
| -rw-r--r-- | lib/libc/gen/Makefile.inc | 1 | ||||
| -rw-r--r-- | lib/libc/gen/Symbol.map | 3 | ||||
| -rw-r--r-- | lib/libc/gen/dup3.3 | 15 | ||||
| -rw-r--r-- | lib/libc/gen/dup3.c | 9 | ||||
| -rw-r--r-- | lib/libc/gen/err.c | 51 | ||||
| -rw-r--r-- | lib/libc/gen/inotify.c | 48 | ||||
| -rw-r--r-- | lib/libc/gen/uexterr_format.c | 12 |
7 files changed, 117 insertions, 22 deletions
diff --git a/lib/libc/gen/Makefile.inc b/lib/libc/gen/Makefile.inc index ad13aaa65621..4d064d18d36e 100644 --- a/lib/libc/gen/Makefile.inc +++ b/lib/libc/gen/Makefile.inc @@ -89,6 +89,7 @@ SRCS+= \ glob.c \ glob-compat11.c \ initgroups.c \ + inotify.c \ isatty.c \ isinf.c \ isnan.c \ diff --git a/lib/libc/gen/Symbol.map b/lib/libc/gen/Symbol.map index 8faecf4b3048..50dbf3425964 100644 --- a/lib/libc/gen/Symbol.map +++ b/lib/libc/gen/Symbol.map @@ -464,6 +464,9 @@ FBSD_1.8 { fdscandir_b; fts_open_b; glob_b; + inotify_add_watch; + inotify_init; + inotify_init1; psiginfo; rtld_get_var; rtld_set_var; diff --git a/lib/libc/gen/dup3.3 b/lib/libc/gen/dup3.3 index f2798930797b..338a9ae74c64 100644 --- a/lib/libc/gen/dup3.3 +++ b/lib/libc/gen/dup3.3 @@ -22,7 +22,7 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.Dd August 16, 2013 +.Dd May 17, 2025 .Dt DUP3 3 .Os .Sh NAME @@ -47,6 +47,11 @@ The close-on-exec flag on the new file descriptor is determined by the bit in .Fa flags . .Pp +The close-on-fork flag on the new file descriptor is determined by the +.Dv O_CLOFORK +bit in +.Fa flags . +.Pp If .Fa oldd \*(Ne @@ -91,7 +96,9 @@ argument. The .Fa flags argument has bits set other than -.Dv O_CLOEXEC . +.Dv O_CLOEXEC +or +.Dv O_CLOFORK . .El .Sh SEE ALSO .Xr accept 2 , @@ -112,3 +119,7 @@ The .Fn dup3 function appeared in .Fx 10.0 . +The +.Dv O_CLOFORK +flag appeared in +.Fx 15.0 . diff --git a/lib/libc/gen/dup3.c b/lib/libc/gen/dup3.c index fca1e99fb47b..1401c1f5b607 100644 --- a/lib/libc/gen/dup3.c +++ b/lib/libc/gen/dup3.c @@ -39,21 +39,22 @@ int __dup3(int, int, int); int __dup3(int oldfd, int newfd, int flags) { - int how; + int fdflags; if (oldfd == newfd) { errno = EINVAL; return (-1); } - if (flags & ~O_CLOEXEC) { + if ((flags & ~(O_CLOEXEC | O_CLOFORK)) != 0) { errno = EINVAL; return (-1); } - how = (flags & O_CLOEXEC) ? F_DUP2FD_CLOEXEC : F_DUP2FD; + fdflags = ((flags & O_CLOEXEC) != 0 ? FD_CLOEXEC : 0) | + ((flags & O_CLOFORK) != 0 ? FD_CLOFORK : 0); - return (_fcntl(oldfd, how, newfd)); + return (_fcntl(oldfd, F_DUP3FD | (fdflags << F_DUP3FD_SHIFT), newfd)); } __weak_reference(__dup3, dup3); diff --git a/lib/libc/gen/err.c b/lib/libc/gen/err.c index 24ea242560b8..cdce20af5a91 100644 --- a/lib/libc/gen/err.c +++ b/lib/libc/gen/err.c @@ -30,9 +30,12 @@ */ #include "namespace.h" +#include <sys/exterrvar.h> #include <err.h> #include <errno.h> +#include <exterr.h> #include <stdarg.h> +#include <stdbool.h> #include <stdio.h> #include <stdlib.h> #include <string.h> @@ -43,6 +46,11 @@ static FILE *err_file; /* file to use for error output */ static void (*err_exit)(int); +static void verrci(bool doexterr, int eval, int code, const char *fmt, + va_list ap) __printf0like(4, 0) __dead2; +static void vwarnci(bool doexterr, int code, const char *fmt, va_list ap) + __printf0like(3, 0); + /* * This is declared to take a `void *' so that the caller is not required * to include <stdio.h> first. However, it is really a `FILE *', and the @@ -70,14 +78,14 @@ _err(int eval, const char *fmt, ...) { va_list ap; va_start(ap, fmt); - verrc(eval, errno, fmt, ap); + verrci(true, eval, errno, fmt, ap); va_end(ap); } void verr(int eval, const char *fmt, va_list ap) { - verrc(eval, errno, fmt, ap); + verrci(true, eval, errno, fmt, ap); } void @@ -85,13 +93,24 @@ errc(int eval, int code, const char *fmt, ...) { va_list ap; va_start(ap, fmt); - verrc(eval, code, fmt, ap); + verrci(false, eval, code, fmt, ap); va_end(ap); } void verrc(int eval, int code, const char *fmt, va_list ap) { + verrci(false, eval, code, fmt, ap); +} + +static void +vexterr(bool doexterr, int code, const char *fmt, va_list ap) +{ + char exterr[UEXTERROR_MAXLEN]; /* libc knows the buffer size */ + int extstatus; + + if (doexterr) + extstatus = uexterr_gettext(exterr, sizeof(exterr)); if (err_file == NULL) err_set_file(NULL); fprintf(err_file, "%s: ", _getprogname()); @@ -99,7 +118,16 @@ verrc(int eval, int code, const char *fmt, va_list ap) vfprintf(err_file, fmt, ap); fprintf(err_file, ": "); } - fprintf(err_file, "%s\n", strerror(code)); + fprintf(err_file, "%s", strerror(code)); + if (doexterr && extstatus == 0) + fprintf(err_file, " (extended error %s)", exterr); + fprintf(err_file, "\n"); +} + +static void +verrci(bool doexterr, int eval, int code, const char *fmt, va_list ap) +{ + vexterr(doexterr, code, fmt, ap); if (err_exit) err_exit(eval); exit(eval); @@ -157,17 +185,16 @@ warnc(int code, const char *fmt, ...) void vwarnc(int code, const char *fmt, va_list ap) { + vwarnci(false, code, fmt, ap); +} + +static void +vwarnci(bool doexterr, int code, const char *fmt, va_list ap) +{ int saved_errno; saved_errno = errno; - if (err_file == NULL) - err_set_file(NULL); - fprintf(err_file, "%s: ", _getprogname()); - if (fmt != NULL) { - vfprintf(err_file, fmt, ap); - fprintf(err_file, ": "); - } - fprintf(err_file, "%s\n", strerror(code)); + vexterr(doexterr, code, fmt, ap); errno = saved_errno; } diff --git a/lib/libc/gen/inotify.c b/lib/libc/gen/inotify.c new file mode 100644 index 000000000000..7ce53aaccd58 --- /dev/null +++ b/lib/libc/gen/inotify.c @@ -0,0 +1,48 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2025 Klara, Inc. + */ + +#include "namespace.h" +#include <sys/fcntl.h> +#include <sys/inotify.h> +#include <sys/specialfd.h> +#include "un-namespace.h" +#include "libc_private.h" + +/* + * Provide compatibility with libinotify, which uses different values for these + * flags. + */ +#define IN_NONBLOCK_OLD 0x80000 +#define IN_CLOEXEC_OLD 0x00800 + +int +inotify_add_watch(int fd, const char *pathname, uint32_t mask) +{ + return (inotify_add_watch_at(fd, AT_FDCWD, pathname, mask)); +} + +int +inotify_init1(int flags) +{ + struct specialfd_inotify args; + + if ((flags & IN_NONBLOCK_OLD) != 0) { + flags &= ~IN_NONBLOCK_OLD; + flags |= IN_NONBLOCK; + } + if ((flags & IN_CLOEXEC_OLD) != 0) { + flags &= ~IN_CLOEXEC_OLD; + flags |= IN_CLOEXEC; + } + args.flags = flags; + return (__sys___specialfd(SPECIALFD_INOTIFY, &args, sizeof(args))); +} + +int +inotify_init(void) +{ + return (inotify_init1(0)); +} diff --git a/lib/libc/gen/uexterr_format.c b/lib/libc/gen/uexterr_format.c index 32b57ffb6e1a..86ba40234ae4 100644 --- a/lib/libc/gen/uexterr_format.c +++ b/lib/libc/gen/uexterr_format.c @@ -23,9 +23,13 @@ __uexterr_format(const struct uexterror *ue, char *buf, size_t bufsz) strlcpy(buf, "No error", bufsz); return (0); } - snprintf(buf, bufsz, - "errno %d category %u (src line %u) p1 %#jx p2 %#jx %s", - ue->error, ue->cat, ue->src_line, - (uintmax_t)ue->p1, (uintmax_t)ue->p2, ue->msg); + if (ue->msg[0] == '\0') { + snprintf(buf, bufsz, + "errno %d category %u (src line %u) p1 %#jx p2 %#jx", + ue->error, ue->cat, ue->src_line, + (uintmax_t)ue->p1, (uintmax_t)ue->p2); + } else { + strlcpy(buf, ue->msg, bufsz); + } return (0); } |