diff options
Diffstat (limited to '')
| -rw-r--r-- | man2/getgroups.2 | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/man2/getgroups.2 b/man2/getgroups.2 index eb282b9..d00dc9e 100644 --- a/man2/getgroups.2 +++ b/man2/getgroups.2 @@ -9,7 +9,7 @@ .\" 2008-05-03, mtk, expanded and rewrote parts of DESCRIPTION and RETURN .\" VALUE, made style of page more consistent with man-pages style. .\" -.TH getgroups 2 2023-03-30 "Linux man-pages 6.05.01" +.TH getgroups 2 2023-10-31 "Linux man-pages 6.7" .SH NAME getgroups, setgroups \- get/set list of supplementary group IDs .SH LIBRARY @@ -18,19 +18,19 @@ Standard C library .SH SYNOPSIS .nf .B #include <unistd.h> -.PP +.P .BI "int getgroups(int " size ", gid_t " list []); -.PP +.P .B #include <grp.h> -.PP +.P .BI "int setgroups(size_t " size ", const gid_t *_Nullable " list ); .fi -.PP +.P .RS -4 Feature Test Macro Requirements for glibc (see .BR feature_test_macros (7)): .RE -.PP +.P .BR setgroups (): .nf Since glibc 2.19: @@ -50,13 +50,13 @@ buffer pointed to by If the calling process is a member of more than .I size supplementary groups, then an error results. -.PP +.P It is unspecified whether the effective group ID of the calling process is included in the returned list. (Thus, an application should also call .BR getegid (2) and add or remove the resulting value.) -.PP +.P If .I size is zero, @@ -67,7 +67,7 @@ This allows the caller to determine the size of a dynamically allocated .I list to be used in a further call to .BR getgroups (). -.PP +.P .BR setgroups () sets the supplementary group IDs for the calling process. Appropriate privileges are required (see the description of the @@ -79,7 +79,7 @@ argument specifies the number of supplementary group IDs in the buffer pointed to by .IR list . A process can drop all of its supplementary groups with the call: -.PP +.P .in +4n .EX setgroups(0, NULL); @@ -92,7 +92,7 @@ returns the number of supplementary group IDs. On error, \-1 is returned, and .I errno is set to indicate the error. -.PP +.P On success, .BR setgroups () returns 0. @@ -104,14 +104,14 @@ is set to indicate the error. .B EFAULT .I list has an invalid address. -.PP +.P .BR getgroups () can additionally fail with the following error: .TP .B EINVAL .I size is less than the number of supplementary group IDs, but is not zero. -.PP +.P .BR setgroups () can additionally fail with the following errors: .TP @@ -170,7 +170,7 @@ SVr4, 4.3BSD. Since .BR setgroups () requires privilege, it is not covered by POSIX.1. -.PP +.P The original Linux .BR getgroups () system call supported only 16-bit group IDs. @@ -192,17 +192,17 @@ is defined in The set of supplementary group IDs is inherited from the parent process, and preserved across an .BR execve (2). -.PP +.P The maximum number of supplementary group IDs can be found at run time using .BR sysconf (3): -.PP +.P .in +4n .EX long ngroups_max; ngroups_max = sysconf(_SC_NGROUPS_MAX); .EE .in -.PP +.P The maximum return value of .BR getgroups () cannot be larger than one more than this value. |