From 83f6ad10c7229130f81ff78e3669110e54d4a7ec Mon Sep 17 00:00:00 2001
From: "Eric S. Raymond" <esr@thyrsus.com>
Date: Sat, 11 Dec 2010 10:24:36 -0500
Subject: Tests for brk(2) and sbrk(2).

---
 deheader         | 25 +++++++++++++------------
 test/brk.c       | 15 +++++++++++++++
 test/regress.chk | 36 +++++++++++++++++++++---------------
 test/sbrk.c      | 15 +++++++++++++++
 4 files changed, 64 insertions(+), 27 deletions(-)
 create mode 100644 test/brk.c
 create mode 100644 test/sbrk.c

diff --git a/deheader b/deheader
index fac6145..114c036 100755
--- a/deheader
+++ b/deheader
@@ -42,18 +42,19 @@ requirements = map(lambda (r, h): (re.compile(r), h), (
     # Headers mandated by SuS that may not be required by a particular compiler,
     # usually because all the argument types and the return type are composed
     # from C scalar types.
-    (r"a64l\s*\(",      ["<stdlib.h>"]),
-    (r"l64a\s*\(",      ["<stdlib.h>"]),
-    (r"access\s*\(",    ["<unistd.h>"]),
-    (r"acos\s*\(",      ["<math.h>"]),
-    (r"acosh\s*\(",     ["<math.h>"]),
-    (r"advance\s*\(",   ["<regexp.h>"]),
-    (r"atan\s*\(",      ["<math.h>"]),
-    (r"atanh\s*\(",     ["<math.h>"]),
-    (r"atan2\s*\(",     ["<math.h>"]),
-    (r"basename\s*\(",  ["<libgen.h>"]),
-    (r"bcmp\s*\(",      ["<string.h>"]),
-    (r"umask\s*\(",     ["<sys/stat.h>", "<sys/types.h>"]),
+    (r"\Wa64l\s*\(",      ["<stdlib.h>"]),
+    (r"\Wl64a\s*\(",      ["<stdlib.h>"]),
+    (r"\Waccess\s*\(",    ["<unistd.h>"]),
+    (r"\Wacos\s*\(",      ["<math.h>"]),
+    (r"\Wacosh\s*\(",     ["<math.h>"]),
+    (r"\Wadvance\s*\(",   ["<regexp.h>"]),
+    (r"\Watan\s*\(",      ["<math.h>"]),
+    (r"\Watanh\s*\(",     ["<math.h>"]),
+    (r"\Watan2\s*\(",     ["<math.h>"]),
+    (r"\Wbasename\s*\(",  ["<libgen.h>"]),
+    (r"\Wbcmp\s*\(",      ["<string.h>"]),
+    (r"\Wbrk\s*\(",       ["<unistd.h>"]),
+    (r"\Wumask\s*\(",     ["<sys/stat.h>", "<sys/types.h>"]),
     # Dependencies observed on systems other than the Linux this was
     # developed under.
     (r"<sys/socket.h>", ["<sys/stat.h>", "<sys/types.h>"]),
diff --git a/test/brk.c b/test/brk.c
new file mode 100644
index 0000000..e13c46b
--- /dev/null
+++ b/test/brk.c
@@ -0,0 +1,15 @@
+/* brk() requires <stdlib.h> */
+
+/*
+ * Items: brk(
+ * Requires: <unistd.h>
+ * Standardized-By: SuS
+ * Detected-by: gcc-4.4.3 + Linux
+ */
+
+#include <unistd.h>
+
+main(int arg, char **argv)
+{
+    brk(NULL);
+}
diff --git a/test/regress.chk b/test/regress.chk
index a1ea9c7..1edf712 100644
--- a/test/regress.chk
+++ b/test/regress.chk
@@ -2,41 +2,44 @@ deheader: test/string.c includes <string.h>
 deheader: test/duplicate.c includes <stdio.h>
 deheader: test/duplicate.c includes <stdio.h>
 deheader: test/duplicate.c has more than one inclusion of <stdio.h>
+deheader: test/brk.c has requires <unistd.h> from \Wbrk\s*\(
+deheader: test/brk.c includes <unistd.h>
 deheader: test/asinh.c includes <math.h>
-deheader: test/atol.c has requires <stdlib.h> from l64a\s*\(
+deheader: test/atol.c has requires <stdlib.h> from \Wl64a\s*\(
 deheader: test/atol.c includes <stdlib.h>
 deheader: test/umask.c includes <sys/stat.h>
 deheader: test/umask.c includes <sys/types.h>
-deheader: test/umask.c has requires <sys/stat.h>,<sys/types.h> from umask\s*\(
-deheader: test/a64l.c has requires <stdlib.h> from a64l\s*\(
+deheader: test/umask.c has requires <sys/stat.h>,<sys/types.h> from \Wumask\s*\(
+deheader: test/a64l.c has requires <stdlib.h> from \Wa64l\s*\(
 deheader: test/a64l.c includes <stdlib.h>
-deheader: test/bcmp.c has requires <string.h> from bcmp\s*\(
+deheader: test/bcmp.c has requires <string.h> from \Wbcmp\s*\(
 deheader: test/bcmp.c includes <string.h>
 deheader: test/bcopy.c includes <string.h>
 deheader: test/atexit.c includes <stdlib.h>
 deheader: test/abs.c includes <stdlib.h>
-deheader: test/access.c has requires <unistd.h> from access\s*\(
+deheader: test/access.c has requires <unistd.h> from \Waccess\s*\(
 deheader: test/access.c includes <unistd.h>
-deheader: test/atoi.c has requires <stdlib.h> from l64a\s*\(
+deheader: test/atoi.c has requires <stdlib.h> from \Wl64a\s*\(
 deheader: test/atoi.c includes <stdlib.h>
+deheader: test/sbrk.c includes <unistd.h>
 deheader: test/alarm.c includes <unistd.h>
-deheader: test/acos.c has requires <math.h> from acos\s*\(
+deheader: test/acos.c has requires <math.h> from \Wacos\s*\(
 deheader: test/acos.c includes <math.h>
 deheader: test/abort.c includes <stdlib.h>
-deheader: test/atanh.c has requires <math.h> from atanh\s*\(
+deheader: test/atanh.c has requires <math.h> from \Watanh\s*\(
 deheader: test/atanh.c includes <math.h>
-deheader: test/atof.c has requires <stdlib.h> from l64a\s*\(
+deheader: test/atof.c has requires <stdlib.h> from \Wl64a\s*\(
 deheader: test/atof.c includes <stdlib.h>
-deheader: test/acosh.c has requires <math.h> from acosh\s*\(
+deheader: test/acosh.c has requires <math.h> from \Wacosh\s*\(
 deheader: test/acosh.c includes <math.h>
-deheader: test/atan.c has requires <math.h> from atan\s*\(
+deheader: test/atan.c has requires <math.h> from \Watan\s*\(
 deheader: test/atan.c includes <math.h>
-deheader: test/basename.c has requires <libgen.h> from basename\s*\(
+deheader: test/basename.c has requires <libgen.h> from \Wbasename\s*\(
 deheader: test/basename.c includes <libgen.h>
 deheader: test/asin.c includes <math.h>
-deheader: test/advance.c has requires <regexp.h> from advance\s*\(
+deheader: test/advance.c has requires <regexp.h> from \Wadvance\s*\(
 deheader: test/advance.c includes <regexp.h>
-deheader: test/atan2.c has requires <math.h> from atan2\s*\(
+deheader: test/atan2.c has requires <math.h> from \Watan2\s*\(
 deheader: test/atan2.c includes <math.h>
 deheader: in test/advance.c, retaining required '#include <regexp.h>\n'
 deheader: in test/atof.c, retaining required '#include <stdlib.h>\n'
@@ -65,10 +68,13 @@ deheader: in test/atan2.c, retaining required '#include <math.h>\n'
 deheader: in test/acosh.c, retaining required '#include <math.h>\n'
 deheader: test/abort.c without <stdlib.h> succeeded.
 deheader: remove <stdlib.h> from test/abort.c
+deheader: in test/brk.c, retaining required '#include <unistd.h>\n'
 deheader: in test/bcmp.c, retaining required '#include <string.h>\n'
 deheader: test/abs.c without <stdlib.h> succeeded.
 deheader: remove <stdlib.h> from test/abs.c
 deheader: in test/atan.c, retaining required '#include <math.h>\n'
 deheader: test/atexit.c without <stdlib.h> failed (512).
+deheader: test/sbrk.c without <unistd.h> succeeded.
+deheader: remove <unistd.h> from test/sbrk.c
 deheader: in test/acos.c, retaining required '#include <math.h>\n'
-deheader: saw 24 files, 25 includes, 8 removed
+deheader: saw 26 files, 27 includes, 9 removed
diff --git a/test/sbrk.c b/test/sbrk.c
new file mode 100644
index 0000000..c8bfca7
--- /dev/null
+++ b/test/sbrk.c
@@ -0,0 +1,15 @@
+/* sbrk() requires <stdlib.h> */
+
+/*
+ * Items: sbrk(
+ * Requires: <unistd.h>
+ * Standardized-By: SuS
+ * Not-Detected-by: gcc-4.4.3 + Linux
+ */
+
+#include <unistd.h>
+
+main(int arg, char **argv)
+{
+    sbrk(23);
+}
-- 
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