17 files changed, 127 insertions, 9 deletions
diff --git a/AUTHORS b/AUTHORS
index 67b8e53..4976391 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -6,6 +6,7 @@ Contributors:
   William E. Baxter <web@superscript.com>
   Olivier Brunel <jjk@jjacky.com>
   Lionel Van Bemten <lionel.van_bemten@nokia.com>
+  Rasmus Villemoes <rv@rasmusvillemoes.dk>
 
 Thanks to:
   Jean Marot <jean.marot@skarnet.org>
diff --git a/NEWS b/NEWS
index 45c55fe..afd463f 100644
--- a/NEWS
+++ b/NEWS
@@ -1,9 +1,11 @@
 Changelog for skalibs.
 
-In 2.5.0.1
+In 2.5.1.0
 ----------
 
- - Bugfix release.
+ - Bugfixes.
+ - More workarounds for sysdeps detection by broken toolchains.
+ - Added the xpathexec_* family of functions (in djbunix.h).
 
 
 In 2.5.0.0
diff --git a/doc/index.html b/doc/index.html
index d1c299f..6ff4d54 100644
--- a/doc/index.html
+++ b/doc/index.html
@@ -60,7 +60,7 @@ with a standard C development environment </li>
 <h3> Download </h3>
 
 <ul>
- <li> The current released version of skalibs is <a href="skalibs-2.5.0.1.tar.gz">2.5.0.1</a>. </li>
+ <li> The current released version of skalibs is <a href="skalibs-2.5.1.0.tar.gz">2.5.1.0</a>. </li>
  <li> Alternatively, you can checkout a copy of the
 <a href="http://git.skarnet.org/cgi-bin/cgit.cgi/skalibs/">skalibs
 git repository</a>:
diff --git a/doc/libstddjb/djbunix.html b/doc/libstddjb/djbunix.html
index 5e9cae1..fe0d1eb 100644
--- a/doc/libstddjb/djbunix.html
+++ b/doc/libstddjb/djbunix.html
@@ -412,6 +412,23 @@ modified by the hidden modifier string. If this command line is empty,
 exit 0 instead.
 </p>
 
+<p> <code>
+void xexecvep (char const *, char const *const *, char const *const *, char const *) <br />
+void xpathexec_r (char const *const *, char const *const *, size_t, char const *, size_t) <br />
+void xpathexec_r_name (char const *, char const *const *, char const *const *, size_t, char const *, size_t) <br />
+void xpathexec_fromenv (char const *const *, char const *const *, size_t) <br />
+void xpathexec_run (char const *, char const *const *, char const *const *) <br />
+void xpathexec0_run (char const *const *, char const *const *) <br />
+void xpathexec (char const *const *) <br />
+void xpathexec0 (char const *const *)
+</code> </p>
+
+<p>
+ Those functions provide the same functionality as the non-x-prefixed versions,
+but if the execution fails (i.e. the process cannot exec into a new program), then
+the process dies with a 111 exit code and an error message on stderr.
+</p>
+
 <p>
  The <a href="env.html">env</a> library interface provides additional functions
 to manipulate modifier strings and environments.
diff --git a/doc/license.html b/doc/license.html
index 7a2874a..e8f7178 100644
--- a/doc/license.html
+++ b/doc/license.html
@@ -74,7 +74,7 @@ color, or different text font. </li>
 <p>
  <em>I am aware that the previous restrictions sound completely
 ridiculous while the official skalibs documentation is incomplete.
-As of 2.5.0.1, I'm not going to enforce those restrictions, but if you're
+As of 2.5.1.0, I'm not going to enforce those restrictions, but if you're
 going to provide documentation for skalibs, don't keep it to yourself,
 please send it to me instead. :-) </em>
 </p>
diff --git a/doc/upgrade.html b/doc/upgrade.html
index abaf22b..f1c8964 100644
--- a/doc/upgrade.html
+++ b/doc/upgrade.html
@@ -17,10 +17,11 @@
 </p>
 
 
-<h2> in 2.5.0.1 </h2>
+<h2> in 2.5.1.0 </h2>
 
 <ul>
- <li> No functional changes. </li>
+ <li> The <tt>xpathexec_*</tt> family of functions has been added to
+<a href="libstddjb/djbunix.html">skalibs/djbunix.h</a>. </li>
 </ul>
 
 <h1> What has changed in skalibs </h1>
diff --git a/package/deps.mak b/package/deps.mak
index a33f169..49b0648 100644
--- a/package/deps.mak
+++ b/package/deps.mak
@@ -669,6 +669,14 @@ src/libstddjb/wait_reap.o src/libstddjb/wait_reap.lo: src/libstddjb/wait_reap.c
 src/libstddjb/waitn.o src/libstddjb/waitn.lo: src/libstddjb/waitn.c src/include/skalibs/djbunix.h
 src/libstddjb/waitn_reap.o src/libstddjb/waitn_reap.lo: src/libstddjb/waitn_reap.c src/include/skalibs/djbunix.h
 src/libstddjb/waitpid_nointr.o src/libstddjb/waitpid_nointr.lo: src/libstddjb/waitpid_nointr.c src/include/skalibs/djbunix.h
+src/libstddjb/xexecvep.o src/libstddjb/xexecvep.lo: src/libstddjb/xexecvep.c src/include/skalibs/djbunix.h src/include/skalibs/strerr2.h
+src/libstddjb/xpathexec.o src/libstddjb/xpathexec.lo: src/libstddjb/xpathexec.c src/include/skalibs/djbunix.h src/include/skalibs/strerr2.h
+src/libstddjb/xpathexec0.o src/libstddjb/xpathexec0.lo: src/libstddjb/xpathexec0.c src/include/skalibs/djbunix.h src/include/skalibs/strerr2.h
+src/libstddjb/xpathexec0_run.o src/libstddjb/xpathexec0_run.lo: src/libstddjb/xpathexec0_run.c src/include/skalibs/djbunix.h src/include/skalibs/strerr2.h
+src/libstddjb/xpathexec_fromenv.o src/libstddjb/xpathexec_fromenv.lo: src/libstddjb/xpathexec_fromenv.c src/include/skalibs/djbunix.h src/include/skalibs/strerr2.h
+src/libstddjb/xpathexec_r.o src/libstddjb/xpathexec_r.lo: src/libstddjb/xpathexec_r.c src/include/skalibs/djbunix.h src/include/skalibs/strerr2.h
+src/libstddjb/xpathexec_r_name.o src/libstddjb/xpathexec_r_name.lo: src/libstddjb/xpathexec_r_name.c src/include/skalibs/djbunix.h src/include/skalibs/strerr2.h
+src/libstddjb/xpathexec_run.o src/libstddjb/xpathexec_run.lo: src/libstddjb/xpathexec_run.c src/include/skalibs/djbunix.h src/include/skalibs/strerr2.h
 src/libunixonacid/atomic_rm_rf.o src/libunixonacid/atomic_rm_rf.lo: src/libunixonacid/atomic_rm_rf.c src/include/skalibs/skamisc.h src/include/skalibs/unix-transactional.h
 src/libunixonacid/atomic_rm_rf_tmp.o src/libunixonacid/atomic_rm_rf_tmp.lo: src/libunixonacid/atomic_rm_rf_tmp.c src/include/skalibs/djbunix.h src/include/skalibs/random.h src/include/skalibs/stralloc.h src/include/skalibs/unix-transactional.h
 src/libunixonacid/bufalloc_timed_flush.o src/libunixonacid/bufalloc_timed_flush.lo: src/libunixonacid/bufalloc_timed_flush.c src/include/skalibs/bufalloc.h src/include/skalibs/functypes.h src/include/skalibs/unix-timed.h
diff --git a/package/info b/package/info
index f993d8e..79d42f0 100644
--- a/package/info
+++ b/package/info
@@ -1,4 +1,4 @@
 package=skalibs
-version=2.5.0.1
+version=2.5.1.0
 category=prog
 package_macro_name=SKALIBS
diff --git a/src/include/skalibs/djbunix.h b/src/include/skalibs/djbunix.h
index fb08658..d7a1bd2 100644
--- a/src/include/skalibs/djbunix.h
+++ b/src/include/skalibs/djbunix.h
@@ -61,6 +61,15 @@ extern void pathexec0_run (char const *const *, char const *const *) ;
 extern void pathexec (char const *const *) ;
 extern void pathexec0 (char const *const *) ;
 
+extern void xpathexec_r (char const *const *, char const *const *, size_t, char const *, size_t) gccattr_noreturn ;
+extern void xpathexec_r_name (char const *, char const *const *, char const *const *, size_t, char const *, size_t) gccattr_noreturn ;
+extern void xpathexec_fromenv (char const *const *, char const *const *, size_t) gccattr_noreturn ;
+extern void xexecvep (char const *, char const *const *, char const *const *, char const *) gccattr_noreturn ;
+extern void xpathexec_run (char const *, char const *const *, char const *const *) gccattr_noreturn ;
+extern void xpathexec0_run (char const *const *, char const *const *) gccattr_noreturn ;
+extern void xpathexec (char const *const *) gccattr_noreturn ;
+extern void xpathexec0 (char const *const *) gccattr_noreturn ;
+
 #define prot_gid(gid) setgid(gid)
 #define prot_uid(uid) setuid(uid)
 extern int prot_readgroups (char const *, gid_t *, unsigned int) ;
@@ -152,11 +161,11 @@ extern pid_t child_spawn2 (char const *, char const *const *, char const *const
 
 
  /*
-    Unified function to fork a child with communication canals.
+    Unified function to fork a child with communication channels (pipes).
     * uses posix_spawn() if available, else uses fork+exec
     * requests n (the last arg) communication fds between parent and child
     * if n=1, equivalent to child_spawn1_pipe; child writes, parent reads.
-    * if n>=2, the fds are pipes, parent reads on even and writes on odd.
+    * if n>=2, parent reads on even and writes on odd.
  */
 
 extern pid_t child_spawn (char const *, char const *const *, char const *const *, int *, unsigned int) ;
diff --git a/src/libstddjb/xexecvep.c b/src/libstddjb/xexecvep.c
new file mode 100644
index 0000000..3a3363e
--- /dev/null
+++ b/src/libstddjb/xexecvep.c
@@ -0,0 +1,10 @@
+/* ISC license. */
+
+#include <skalibs/djbunix.h>
+#include <skalibs/strerr2.h>
+
+void xexecvep (char const *file, char const *const *argv, char const *const *envp, char const *path)
+{
+  execvep(file, argv, envp, path) ;
+  strerr_dieexec(111, file) ;
+}
diff --git a/src/libstddjb/xpathexec.c b/src/libstddjb/xpathexec.c
new file mode 100644
index 0000000..92e78dd
--- /dev/null
+++ b/src/libstddjb/xpathexec.c
@@ -0,0 +1,10 @@
+/* ISC license. */
+
+#include <skalibs/djbunix.h>
+#include <skalibs/strerr2.h>
+
+void xpathexec (char const *const *argv)
+{
+  pathexec(argv) ;
+  strerr_dieexec(111, argv[0]) ;
+}
diff --git a/src/libstddjb/xpathexec0.c b/src/libstddjb/xpathexec0.c
new file mode 100644
index 0000000..c9c2c74
--- /dev/null
+++ b/src/libstddjb/xpathexec0.c
@@ -0,0 +1,10 @@
+/* ISC license. */
+
+#include <skalibs/djbunix.h>
+#include <skalibs/strerr2.h>
+
+void xpathexec0 (char const *const *argv)
+{
+  pathexec0(argv) ;
+  strerr_dieexec(111, argv[0]) ;
+}
diff --git a/src/libstddjb/xpathexec0_run.c b/src/libstddjb/xpathexec0_run.c
new file mode 100644
index 0000000..c24e931
--- /dev/null
+++ b/src/libstddjb/xpathexec0_run.c
@@ -0,0 +1,10 @@
+/* ISC license. */
+
+#include <skalibs/djbunix.h>
+#include <skalibs/strerr2.h>
+
+void xpathexec0_run (char const *const *argv, char const *const *envp)
+{
+  pathexec0_run(argv, envp) ;
+  strerr_dieexec(111, argv[0]) ;
+}
diff --git a/src/libstddjb/xpathexec_fromenv.c b/src/libstddjb/xpathexec_fromenv.c
new file mode 100644
index 0000000..e75b94a
--- /dev/null
+++ b/src/libstddjb/xpathexec_fromenv.c
@@ -0,0 +1,10 @@
+/* ISC license. */
+
+#include <skalibs/djbunix.h>
+#include <skalibs/strerr2.h>
+
+void xpathexec_fromenv (char const *const *argv, char const *const *envp, size_t envlen)
+{
+  pathexec_fromenv(argv, envp, envlen) ;
+  strerr_dieexec(111, argv[0]) ;
+}
diff --git a/src/libstddjb/xpathexec_r.c b/src/libstddjb/xpathexec_r.c
new file mode 100644
index 0000000..02628f3
--- /dev/null
+++ b/src/libstddjb/xpathexec_r.c
@@ -0,0 +1,10 @@
+/* ISC license. */
+
+#include <skalibs/djbunix.h>
+#include <skalibs/strerr2.h>
+
+void xpathexec_r (char const *const *argv, char const *const *envp, size_t envlen, char const *modifs, size_t modiflen)
+{
+  pathexec_r(argv, envp, envlen, modifs, modiflen) ;
+  strerr_dieexec(111, argv[0]) ;
+}
diff --git a/src/libstddjb/xpathexec_r_name.c b/src/libstddjb/xpathexec_r_name.c
new file mode 100644
index 0000000..76eaf2e
--- /dev/null
+++ b/src/libstddjb/xpathexec_r_name.c
@@ -0,0 +1,10 @@
+/* ISC license. */
+
+#include <skalibs/djbunix.h>
+#include <skalibs/strerr2.h>
+
+void xpathexec_r_name (char const *file, char const *const *argv, char const *const *envp, size_t envlen, char const *modifs, size_t modiflen)
+{
+  pathexec_r_name(file, argv, envp, envlen, modifs, modiflen) ;
+  strerr_dieexec(111, file) ;
+}
diff --git a/src/libstddjb/xpathexec_run.c b/src/libstddjb/xpathexec_run.c
new file mode 100644
index 0000000..3596f2f
--- /dev/null
+++ b/src/libstddjb/xpathexec_run.c
@@ -0,0 +1,10 @@
+/* ISC license. */
+
+#include <skalibs/djbunix.h>
+#include <skalibs/strerr2.h>
+
+void xpathexec_run (char const *file, char const *const *argv, char const *const *envp)
+{
+  pathexec_run(file, argv, envp) ;
+  strerr_dieexec(111, file) ;
+}