From edf81b0d16322e5d49ec22f394b669d9094daac1 Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Wed, 1 Feb 2023 18:08:26 +0000
Subject:  Add a multicall target. If you use it, you're on your own.

Signed-off-by: Laurent Bercot <ska@appnovation.com>
---
 tools/gen-multicall.sh | 97 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100755 tools/gen-multicall.sh

(limited to 'tools')

diff --git a/tools/gen-multicall.sh b/tools/gen-multicall.sh
new file mode 100755
index 0000000..d9b03d3
--- /dev/null
+++ b/tools/gen-multicall.sh
@@ -0,0 +1,97 @@
+#!/bin/sh -e
+
+echo '/* ISC license. */'
+echo
+echo '#include <skalibs/nonposix.h>'
+echo
+{ echo '#include <string.h>' ; echo '#include <stdlib.h>' ; cat src/execline/*.c | grep '^#include <' | grep -vF '<skalibs/' | grep -vF '<execline/' ; } | sort -u
+
+cat <<EOF
+
+#include <skalibs/nsig.h>
+#include <skalibs/skalibs.h>
+
+#include <execline/config.h>
+#include <execline/execline.h>
+#include "exlsn.h"
+
+typedef int main_func (int, char **, char const *const *) ;
+typedef main_func *main_func_ref ;
+
+typedef struct execline_app_s execline_app, *execline_app_ref ;
+struct execline_app_s
+{
+  char const *name ;
+  main_func_ref mainf ;
+} ;
+
+static int execline_app_cmp (void const *a, void const *b)
+{
+  char const *name = a ;
+  execline_app const *p = b ;
+  return strcmp(name, p->name) ;
+}
+
+#ifdef EXECLINE_PEDANTIC_POSIX
+# define CD_FUNC posix_cd_main
+# define UMASK_FUNC posix_umask_main
+#else
+# define CD_FUNC execline_cd_main
+# define UMASK_FUNC execline_umask_main
+#endif
+
+EOF
+
+for i in `ls -1 src/execline/deps-exe` ; do
+  j=`echo $i | tr - _`
+  echo
+  grep -v '^#include ' < src/execline/${i}.c | grep -vF '/* ISC license. */' | sed -e "s/int main (int argc, char \(.*\)\*argv.*$/int ${j}_main (int argc, char \1*argv, char const *const *envp)/"
+  echo
+  echo '#undef USAGE'
+  echo '#undef dieusage'
+done
+
+cat <<EOF
+
+static int execline_main (int, char **, char const *const *) ;
+
+static execline_app const execline_apps[] =
+{
+EOF
+
+for i in `{ echo cd ; echo execline ; echo umask ; ls -1 src/execline/deps-exe ; } | sort` ; do
+  j=`echo $i | tr - _`
+  if test $i = cd ; then
+    echo '  { .name = "cd", .mainf = (main_func_ref)&CD_FUNC },'
+  elif test $i = umask ; then
+    echo '  { .name = "umask", .mainf = (main_func_ref)&UMASK_FUNC },'
+  else
+    echo "  { .name=\"${i}\", .mainf = (main_func_ref)&${j}_main },"
+  fi
+done
+
+cat <<EOF
+} ;
+
+#define USAGE "execline subcommand [ arguments... ]"
+#define dieusage() strerr_dief1x(100, USAGE)
+
+static int execline_main (int argc, char **argv, char const *const *envp)
+{
+  execline_app const *p ;
+  PROG = "execline" ;
+  if (!argc) dieusage() ;
+  p = bsearch(argv[1], execline_apps, sizeof(execline_apps) / sizeof(execline_app), sizeof(execline_app), &execline_app_cmp) ;
+  if (!p) strerr_dief2x(100, "unknown subcommand: ", argv[1]) ;
+  return (*(p->mainf))(argc-1, argv+1, envp) ;
+}
+
+int main (int argc, char **argv, char const *const *envp)
+{
+  execline_app const *p ;
+  char const *name = strrchr(argv[0], '/') ;
+  if (name) name++ ; else name = argv[0] ;
+  p = bsearch(name, execline_apps, sizeof(execline_apps) / sizeof(execline_app), sizeof(execline_app), &execline_app_cmp) ;
+  return p ? (*(p->mainf))(argc, argv, envp) : execline_main(argc, argv, envp) ;
+}
+EOF
-- 
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