diff options
Diffstat (limited to 'manual')
| -rw-r--r-- | manual/process.texi | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/manual/process.texi b/manual/process.texi index 5728bde2cb..b20ad26cbf 100644 --- a/manual/process.texi +++ b/manual/process.texi @@ -405,6 +405,19 @@ be an array of strings in the same format as for the @code{environ} variable; see @ref{Environment Access}. @end deftypefun +@deftypefun int fexecve (int @var{fd}, char *const @var{argv}@t{[]}, char *const @var{env}@t{[]}) +@standards{POSIX.1, unistd.h} +@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}} +This is similar to @code{execve}, but instead identifying the progam +executable by its pathname, the file descriptor @var{fd} is used. The +descriptor must have been opened with the @code{O_RDONLY} flag or (on +Linux) the @code{O_PATH} flag. + +On Linux, @code{fexecve} can fail with an error of @code{ENOSYS} if +@file{/proc} has not been mounted and the kernel lacks support for the +underlying @code{execveat} system call. +@end deftypefun + @deftypefun int execle (const char *@var{filename}, const char *@var{arg0}, @dots{}, char *const @var{env}@t{[]}) @standards{POSIX.1, unistd.h} @safety{@prelim{}@mtsafe{}@asunsafe{@ascuheap{}}@acunsafe{@acsmem{}}} |