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authorLaurent Bercot <ska-skaware@skarnet.org>2023-02-01 18:08:26 +0000
committerLaurent Bercot <ska@appnovation.com>2023-02-01 18:08:26 +0000
commitedf81b0d16322e5d49ec22f394b669d9094daac1 (patch)
tree04b1a40a5af1c8d95978e0e85d96cb8e5cb061bb /tools/gen-multicall.sh
parent5b5f5e507db58c5005cd8a572f761ef2f002cb0f (diff)
downloadexecline-edf81b0d16322e5d49ec22f394b669d9094daac1.tar.xz
Add a multicall target. If you use it, you're on your own.
Signed-off-by: Laurent Bercot <ska@appnovation.com>
Diffstat (limited to 'tools/gen-multicall.sh')
-rwxr-xr-xtools/gen-multicall.sh97
1 files changed, 97 insertions, 0 deletions
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