From 5b405827a2fa4c928c488f3e7b0197dfec60dcc2 Mon Sep 17 00:00:00 2001
From: Rob Landley <rob@landley.net>
Date: Sat, 29 Mar 2014 18:11:00 -0500
Subject: Group headers by standard (POSIX or LSB) or function
 (internationalization, networking). Move headers standards ignore (but which
 have been there >15 years) to lib/portability.h. Fold xregcomp into lib since
 it's posix.

---
 lib/lib.h               |  2 ++
 lib/password.c          |  1 -
 lib/portability.h       |  8 ++++++++
 lib/xregcomp.c          | 22 ----------------------
 lib/xregcomp.h          |  6 ------
 lib/xwrap.c             | 11 +++++++++++
 toys.h                  | 33 +++++++++++++++++----------------
 toys/pending/mdev.c     |  1 -
 toys/pending/mkpasswd.c |  1 -
 toys/pending/sed.c      |  1 -
 toys/posix/nl.c         |  1 -
 11 files changed, 38 insertions(+), 49 deletions(-)
 delete mode 100644 lib/xregcomp.c
 delete mode 100644 lib/xregcomp.h

diff --git a/lib/lib.h b/lib/lib.h
index 56927b8b..d5b3d3ce 100644
--- a/lib/lib.h
+++ b/lib/lib.h
@@ -117,6 +117,7 @@ void xsetuser(struct passwd *pwd);
 char *xreadlink(char *name);
 long xparsetime(char *arg, long units, long *fraction);
 void xpidfile(char *name);
+void xregcomp(regex_t *preg, char *rexec, int cflags);
 
 // lib.c
 void verror_msg(char *msg, int err, va_list va);
@@ -178,4 +179,5 @@ mode_t string_to_mode(char *mode_str, mode_t base);
 void mode_to_string(mode_t mode, char *buf);
 void names_to_pid(char **names, int (*callback)(pid_t pid, char *name));
 
+// Functions in need of further review/cleanup
 #include "lib/pending.h"
diff --git a/lib/password.c b/lib/password.c
index f2d010ec..13a431ac 100644
--- a/lib/password.c
+++ b/lib/password.c
@@ -4,7 +4,6 @@
  */
 
 #include "toys.h"
-#include "xregcomp.h"
 #include <time.h>
 
 int get_salt(char *salt, char *algo)
diff --git a/lib/portability.h b/lib/portability.h
index 86484c7f..3b1cdf70 100644
--- a/lib/portability.h
+++ b/lib/portability.h
@@ -13,6 +13,9 @@
 
 #undef _FORTIFY_SOURCE
 
+// For musl
+#define _ALL_SOURCE
+
 // Test for gcc (using compiler builtin #define)
 
 #ifdef __GNUC__
@@ -150,5 +153,10 @@ ssize_t getdelim(char **lineptr, size_t *n, int delim, FILE *stream);
 ssize_t getline(char **lineptr, size_t *n, FILE *stream);
 #endif
 
+// Linux headers not listed by POSIX or LSB
+#include <shadow.h>
+#include <sys/mount.h>
+#include <sys/swap.h>
+
 // compile time probes for stuff libc didn't provide
 #include "generated/portability.h"
diff --git a/lib/xregcomp.c b/lib/xregcomp.c
deleted file mode 100644
index ec7d1b79..00000000
--- a/lib/xregcomp.c
+++ /dev/null
@@ -1,22 +0,0 @@
-/* Call regcomp() and handle errors.
- *
- * Copyright 2007 Rob Landley <rob@landley.net>
- *
- * This is a separate file so environments that haven't got regular expression
- * support can configure this out and avoid a build break.
- */
-
-#include "toys.h"
-#include "xregcomp.h"
-
-void xregcomp(regex_t *preg, char *regex, int cflags)
-{
-  int rc = regcomp(preg, regex, cflags);
-
-  if (rc) {
-    char msg[256];
-    regerror(rc, preg, msg, 255);
-    msg[255]=0;
-    error_exit("xregcomp: %s", msg);
-  }
-}
diff --git a/lib/xregcomp.h b/lib/xregcomp.h
deleted file mode 100644
index fa929fa3..00000000
--- a/lib/xregcomp.h
+++ /dev/null
@@ -1,6 +0,0 @@
-/* This is a separate file so libc doesn't always need regex support. */
-
-#include <sys/types.h>
-#include <regex.h>
-
-void xregcomp(regex_t *preg, char *rexec, int cflags);
diff --git a/lib/xwrap.c b/lib/xwrap.c
index 51bd2b43..5310506c 100644
--- a/lib/xwrap.c
+++ b/lib/xwrap.c
@@ -514,3 +514,14 @@ long xparsetime(char *arg, long units, long *fraction)
 
   return l;
 }
+
+// Compile a regular expression into a regex_t
+void xregcomp(regex_t *preg, char *regex, int cflags)
+{
+  int rc = regcomp(preg, regex, cflags);
+
+  if (rc) {
+    regerror(rc, preg, libbuf, sizeof(libbuf));
+    error_exit("xregcomp: %s", libbuf);
+  }
+}
diff --git a/toys.h b/toys.h
index cd1755b6..2f165967 100644
--- a/toys.h
+++ b/toys.h
@@ -3,10 +3,12 @@
  * Copyright 2006 Rob Landley <rob@landley.net>
  */
 
-#include "generated/config.h"
+// Stuff that needs to go before the standard headers
 
+#include "generated/config.h"
 #include "lib/portability.h"
 
+// General posix-2008 headers
 #include <ctype.h>
 #include <dirent.h>
 #include <errno.h>
@@ -16,12 +18,10 @@
 #include <limits.h>
 #include <libgen.h>
 #include <math.h>
-#include <pty.h>
 #include <pwd.h>
+#include <regex.h>
 #include <sched.h>
 #include <setjmp.h>
-#include <sched.h>
-#include <shadow.h>
 #include <stdarg.h>
 #include <stddef.h>
 #include <stdint.h>
@@ -29,15 +29,10 @@
 #include <stdlib.h>
 #include <string.h>
 #include <strings.h>
-#include <sys/ioctl.h>
 #include <sys/mman.h>
-#include <sys/mount.h>
 #include <sys/resource.h>
 #include <sys/stat.h>
-#include <sys/statfs.h>
 #include <sys/statvfs.h>
-#include <sys/sysinfo.h>
-#include <sys/swap.h>
 #include <sys/time.h>
 #include <sys/times.h>
 #include <sys/types.h>
@@ -49,13 +44,7 @@
 #include <utime.h>
 #include <utmpx.h>
 
-// Internationalization support
-
-#include <locale.h>
-#include <wchar.h>
-#include <wctype.h>
-
-// Networking stuff
+// Posix networking
 
 #include <arpa/inet.h>
 #include <netdb.h>
@@ -66,6 +55,18 @@
 #include <sys/socket.h>
 #include <sys/un.h>
 
+// Internationalization support (also in POSIX and LSB)
+
+#include <locale.h>
+#include <wchar.h>
+#include <wctype.h>
+
+// LSB 4.1 headers
+#include <pty.h>
+#include <sys/ioctl.h>
+#include <sys/statfs.h>
+#include <sys/sysinfo.h>
+
 #include "lib/lib.h"
 #include "toys/e2fs.h"
 
diff --git a/toys/pending/mdev.c b/toys/pending/mdev.c
index b89ac2ca..2d98c257 100644
--- a/toys/pending/mdev.c
+++ b/toys/pending/mdev.c
@@ -30,7 +30,6 @@ config MDEV_CONF
 */
 
 #include "toys.h"
-#include "lib/xregcomp.h"
 
 // todo, open() block devices to trigger partition scanning.
 
diff --git a/toys/pending/mkpasswd.c b/toys/pending/mkpasswd.c
index 87b239e0..a46c514c 100644
--- a/toys/pending/mkpasswd.c
+++ b/toys/pending/mkpasswd.c
@@ -22,7 +22,6 @@ config MKPASSWD
 
 #define FOR_mkpasswd
 #include "toys.h"
-#include "lib/xregcomp.h"
 
 GLOBALS(
   long pfd;
diff --git a/toys/pending/sed.c b/toys/pending/sed.c
index 0ce25aca..22e07c07 100644
--- a/toys/pending/sed.c
+++ b/toys/pending/sed.c
@@ -23,7 +23,6 @@ config SED
 
 #define FOR_sed
 #include "toys.h"
-#include "lib/xregcomp.h"
 
 GLOBALS(
   struct arg_list *files;
diff --git a/toys/posix/nl.c b/toys/posix/nl.c
index b462cddd..c7e7b92c 100644
--- a/toys/posix/nl.c
+++ b/toys/posix/nl.c
@@ -27,7 +27,6 @@ config NL
 
 #define FOR_nl
 #include "toys.h"
-#include "lib/xregcomp.h"
 
 GLOBALS(
   long w;
-- 
cgit v1.2.3