diff options
Diffstat (limited to 'man2/execveat.2')
| -rw-r--r-- | man2/execveat.2 | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/man2/execveat.2 b/man2/execveat.2 index 22c468a..3a612ae 100644 --- a/man2/execveat.2 +++ b/man2/execveat.2 @@ -3,7 +3,7 @@ .\" .\" SPDX-License-Identifier: Linux-man-pages-copyleft .\" -.TH execveat 2 2023-03-30 "Linux man-pages 6.05.01" +.TH execveat 2 2023-10-31 "Linux man-pages 6.7" .SH NAME execveat \- execute program relative to a directory file descriptor .SH LIBRARY @@ -13,7 +13,7 @@ Standard C library .nf .BR "#include <linux/fcntl.h>" " /* Definition of " AT_* " constants */" .B #include <unistd.h> -.PP +.P .BI "int execveat(int " dirfd ", const char *" pathname , .BI " char *const _Nullable " argv [], .BI " char *const _Nullable " envp [], @@ -30,7 +30,7 @@ and It operates in exactly the same way as .BR execve (2), except for the differences described in this manual page. -.PP +.P If the pathname given in .I pathname is relative, then it is interpreted relative to the directory @@ -40,7 +40,7 @@ referred to by the file descriptor the calling process, as is done by .BR execve (2) for a relative pathname). -.PP +.P If .I pathname is relative and @@ -52,13 +52,13 @@ then is interpreted relative to the current working directory of the calling process (like .BR execve (2)). -.PP +.P If .I pathname is absolute, then .I dirfd is ignored. -.PP +.P If .I pathname is an empty string and the @@ -68,7 +68,7 @@ flag is specified, then the file descriptor specifies the file to be executed (i.e., .I dirfd refers to an executable file, rather than a directory). -.PP +.P The .I flags argument is a bit mask that can include zero or more of the following flags: @@ -160,7 +160,7 @@ system call is also needed to allow to be implemented on systems that do not have the .I /proc filesystem mounted. -.PP +.P When asked to execute a script file, the .I argv[0] that is passed to the script interpreter is a string of the form @@ -183,7 +183,7 @@ in this case, .I P is the value given in .IR pathname . -.PP +.P For the same reasons described in .BR fexecve (3), the natural idiom when using @@ -196,13 +196,13 @@ The .B ENOENT error described above means that it is not possible to set the close-on-exec flag on the file descriptor given to a call of the form: -.PP +.P .in +4n .EX execveat(fd, "", argv, envp, AT_EMPTY_PATH); .EE .in -.PP +.P However, the inability to set the close-on-exec flag means that a file descriptor referring to the script leaks through to the script itself. As well as wasting a file descriptor, |