Auto merge of #3021 - devnexen:getopt_long, r=JohnTitor

adding getopt_long for unixes.

Author: bors

libc-test/build.rs

@@ -199,6 +199,7 @@ fn test_apple(target: &str) {
         "errno.h",
         "execinfo.h",
         "fcntl.h",
+        "getopt.h",
         "glob.h",
         "grp.h",
         "iconv.h",
@@ -421,6 +422,7 @@ fn test_openbsd(target: &str) {
         "errno.h",
         "execinfo.h",
         "fcntl.h",
+        "getopt.h",
         "libgen.h",
         "limits.h",
         "link.h",
@@ -769,6 +771,7 @@ fn test_solarish(target: &str) {
         "errno.h",
         "execinfo.h",
         "fcntl.h",
+        "getopt.h",
         "glob.h",
         "grp.h",
         "ifaddrs.h",
@@ -997,6 +1000,7 @@ fn test_netbsd(target: &str) {
         "elf.h",
         "errno.h",
         "fcntl.h",
+        "getopt.h",
         "libgen.h",
         "limits.h",
         "link.h",
@@ -1208,6 +1212,7 @@ fn test_dragonflybsd(target: &str) {
         "errno.h",
         "execinfo.h",
         "fcntl.h",
+        "getopt.h",
         "glob.h",
         "grp.h",
         "ifaddrs.h",
@@ -1511,6 +1516,7 @@ fn test_android(target: &str) {
                "elf.h",
                "errno.h",
                "fcntl.h",
+               "getopt.h",
                "grp.h",
                "ifaddrs.h",
                "libgen.h",
@@ -1884,6 +1890,7 @@ fn test_freebsd(target: &str) {
                 "errno.h",
                 "execinfo.h",
                 "fcntl.h",
+                "getopt.h",
                 "glob.h",
                 "grp.h",
                 "iconv.h",
@@ -2804,6 +2811,7 @@ fn test_linux(target: &str) {
                "dlfcn.h",
                "elf.h",
                "fcntl.h",
+               "getopt.h",
                "glob.h",
                [gnu]: "gnu/libc-version.h",
                "grp.h",

libc-test/semver/android.txt

@@ -3026,6 +3026,7 @@ getline
 getlogin
 getnameinfo
 getopt
+getopt_long
 getpeername
 getpgid
 getpgrp
@@ -3594,4 +3595,4 @@ wmemchr
 write
 writev
 dirname
-basename
+basename

libc-test/semver/apple.txt

@@ -1895,6 +1895,7 @@ getline
 getloadavg
 getmntinfo
 getnameinfo
+getopt_long
 getpeereid
 getpriority
 getprogname
@@ -2228,4 +2229,4 @@ waitid
 xsw_usage
 xucred
 dirname
-basename
+basename

libc-test/semver/dragonfly.txt

@@ -1294,6 +1294,7 @@ getlastlogx
 getline
 getloadavg
 getnameinfo
+getopt_long
 getpeereid
 getpriority
 getprogname

libc-test/semver/freebsd.txt

@@ -1617,6 +1617,7 @@ getline
 getloadavg
 getlocalbase
 getnameinfo
+getopt_long
 getpagesize
 getpagesizes
 getpeereid

libc-test/semver/linux.txt

@@ -2967,6 +2967,7 @@ getifaddrs
 getline
 getmntent
 getnameinfo
+getopt_long
 getpriority
 getpwent
 getresgid

libc-test/semver/netbsd.txt

@@ -1254,6 +1254,7 @@ getlastlogx
 getline
 getloadavg
 getnameinfo
+getopt_long
 getpeereid
 getpriority
 getprogname

libc-test/semver/openbsd.txt

@@ -1040,6 +1040,7 @@ getline
 getloadavg
 getmntinfo
 getnameinfo
+getopt_long
 getpeereid
 getpriority
 getprogname
@@ -1232,4 +1233,4 @@ utrace
 wait4
 xucred
 dirname
-basename
+basename

src/unix/bsd/mod.rs

@@ -115,6 +115,13 @@ s! {
         pub rm_so: regoff_t,
         pub rm_eo: regoff_t,
     }
+
+    pub struct option {
+        pub name: *const ::c_char,
+        pub has_arg: ::c_int,
+        pub flag: *mut ::c_int,
+        pub val: ::c_int,
+    }
 }
 
 s_no_extra_traits! {
@@ -885,6 +892,13 @@ extern "C" {
     pub fn srand48(seed: ::c_long);
     pub fn seed48(xseed: *mut ::c_ushort) -> *mut ::c_ushort;
     pub fn lcong48(p: *mut ::c_ushort);
+    pub fn getopt_long(
+        argc: ::c_int,
+        argv: *const *mut c_char,
+        optstring: *const c_char,
+        longopts: *const option,
+        longindex: *mut ::c_int,
+    ) -> ::c_int;
 }
 
 cfg_if! {

src/unix/haiku/mod.rs

@@ -430,6 +430,13 @@ s! {
         pub key: *mut ::c_char,
         pub data: *mut ::c_void,
     }
+
+    pub struct option {
+        pub name: *const ::c_char,
+        pub has_arg: ::c_int,
+        pub flag: *mut ::c_int,
+        pub val: ::c_int,
+    }
 }
 
 s_no_extra_traits! {
@@ -1971,7 +1978,13 @@ extern "C" {
         attr: *mut posix_spawnattr_t,
         sigmask: *const ::sigset_t,
     ) -> ::c_int;
-
+    pub fn getopt_long(
+        argc: ::c_int,
+        argv: *const *mut c_char,
+        optstring: *const c_char,
+        longopts: *const option,
+        longindex: *mut ::c_int,
+    ) -> ::c_int;
 }
 
 #[link(name = "bsd")]