Auto merge of #2207 - devnexen:setproctitle, r=JohnTitor

bsd adding setproctitle (setproctitle_fast for FreeBSD too).

Closes #2197

Author: bors

libc-test/semver/dragonfly.txt

@@ -1344,6 +1344,7 @@ setgroups
 sethostname
 setitimer
 setpriority
+setproctitle
 setprogname
 setpwent
 setresgid

libc-test/semver/freebsd.txt

@@ -1589,6 +1589,7 @@ setgroups
 sethostname
 setitimer
 setpriority
+setproctitle
 setprogname
 setpwent
 setresgid

libc-test/semver/netbsd.txt

@@ -1230,6 +1230,7 @@ setgroups
 sethostname
 setitimer
 setpriority
+setproctitle
 setprogname
 setpwent
 setrlimit

libc-test/semver/openbsd.txt

@@ -1040,6 +1040,7 @@ setgroups
 sethostname
 setitimer
 setpriority
+setproctitle
 setprogname
 setpwent
 setresgid

src/unix/bsd/freebsdlike/dragonfly/mod.rs

@@ -1131,6 +1131,7 @@ extern "C" {
     pub fn sched_getaffinity(pid: ::pid_t, cpusetsize: ::size_t, mask: *mut cpu_set_t) -> ::c_int;
     pub fn sched_setaffinity(pid: ::pid_t, cpusetsize: ::size_t, mask: *const cpu_set_t)
         -> ::c_int;
+    pub fn setproctitle(fmt: *const ::c_char, ...);
 }
 
 #[link(name = "rt")]

src/unix/bsd/freebsdlike/freebsd/freebsd12/mod.rs

@@ -228,6 +228,7 @@ extern "C" {
 
     pub fn getrandom(buf: *mut ::c_void, buflen: ::size_t, flags: ::c_uint) -> ::ssize_t;
     pub fn elf_aux_info(aux: ::c_int, buf: *mut ::c_void, buflen: ::c_int) -> ::c_int;
+    pub fn setproctitle_fast(fmt: *const ::c_char, ...);
 }
 
 cfg_if! {

src/unix/bsd/freebsdlike/freebsd/freebsd13/mod.rs

@@ -233,6 +233,7 @@ extern "C" {
     pub fn getrandom(buf: *mut ::c_void, buflen: ::size_t, flags: ::c_uint) -> ::ssize_t;
     pub fn getentropy(buf: *mut ::c_void, buflen: ::size_t) -> ::c_int;
     pub fn elf_aux_info(aux: ::c_int, buf: *mut ::c_void, buflen: ::c_int) -> ::c_int;
+    pub fn setproctitle_fast(fmt: *const ::c_char, ...);
 }
 
 cfg_if! {

src/unix/bsd/freebsdlike/freebsd/mod.rs

@@ -1579,6 +1579,7 @@ extern "C" {
     ) -> *mut ::c_void;
 
     pub fn nmount(iov: *mut ::iovec, niov: ::c_uint, flags: ::c_int) -> ::c_int;
+    pub fn setproctitle(fmt: *const ::c_char, ...);
     pub fn cpuset_getaffinity(
         level: cpulevel_t,
         which: cpuwhich_t,

src/unix/bsd/netbsdlike/netbsd/mod.rs

@@ -2113,6 +2113,8 @@ extern "C" {
 
     // Added in `NetBSD` 7.0
     pub fn explicit_memset(b: *mut ::c_void, c: ::c_int, len: ::size_t);
+
+    pub fn setproctitle(fmt: *const ::c_char, ...);
 }
 
 #[link(name = "util")]

src/unix/bsd/netbsdlike/openbsd/mod.rs

@@ -1566,6 +1566,8 @@ extern "C" {
 
     // Added in `OpenBSD` 5.5
     pub fn explicit_bzero(s: *mut ::c_void, len: ::size_t);
+
+    pub fn setproctitle(fmt: *const ::c_char, ...);
 }
 
 cfg_if! {