Remove some no longer needed cruft

Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>

11 files changed, 41 insertions, 160 deletions

diff --git a/cmd/Makemodule.am b/cmd/Makemodule.am
index 07b50ce..c503215 100644
--- a/cmd/Makemodule.am
+++ b/cmd/Makemodule.am
@@ -2,7 +2,6 @@ shutdown_SOURCES = cmd/shutdown.c
 shutdown_CPPFLAGS = $(AM_CPPFLAGS)
 shutdown_CFLAGS = $(AM_CFLAGS)
 shutdown_LDFLAGS = $(AM_LDFLAGS)
-shutdown_LDADD = libutil.a
 
 runsvc_SOURCES = cmd/runsvc/runsvc.c cmd/runsvc/env.c cmd/runsvc/runsvc.h
 runsvc_CPPFLAGS = $(AM_CPPFLAGS)
diff --git a/cmd/shutdown.c b/cmd/shutdown.c
index cc14e61..546b076 100644
--- a/cmd/shutdown.c
+++ b/cmd/shutdown.c
@@ -17,7 +17,6 @@
 
 static const struct option options[] = {
 	{ "help", no_argument, NULL, 'h' },
-	{ "version", no_argument, NULL, 'V' },
 	{ "poweroff", no_argument, NULL, 'p' },
 	{ "reboot", no_argument, NULL, 'r' },
 	{ "force", no_argument, NULL, 'f' },
@@ -25,7 +24,7 @@ static const struct option options[] = {
 	{ NULL, 0, NULL, 0 },
 };
 
-static const char *shortopt = "hVprfn";
+static const char *shortopt = "hprfn";
 
 static const char *defact_str = "power-off";
 static int defact = RB_POWER_OFF;
@@ -78,8 +77,6 @@ int main(int argc, char **argv)
 		case 'r':
 			defact = RB_AUTOBOOT;
 			break;
-		case 'V':
-			print_version(ptr);
 		case 'h':
 			usage(ptr, EXIT_SUCCESS);
 		default:
diff --git a/lib/Makemodule.am b/lib/Makemodule.am
index a60b9f2..258cfe3 100644
--- a/lib/Makemodule.am
+++ b/lib/Makemodule.am
@@ -4,9 +4,7 @@ libinit_a_SOURCES += lib/init/svc_tsort.c lib/include/service.h
 libinit_a_CPPFLAGS = $(AM_CPPFLAGS)
 libinit_a_CFLAGS = $(AM_CFLAGS)
 
-libutil_a_SOURCES = lib/util/argv_exec.c lib/util/enum_by_name.c
-libutil_a_SOURCES += lib/util/enum_to_name.c lib/util/print_version.c
-libutil_a_SOURCES += lib/util/fopenat.c lib/include/util.h
+libutil_a_SOURCES = lib/util/argv_exec.c lib/include/util.h
 libutil_a_CPPFLAGS = $(AM_CPPFLAGS)
 libutil_a_CFLAGS = $(AM_CFLAGS)
 
diff --git a/lib/include/service.h b/lib/include/service.h
index 594f8ca..e46cd0e 100644
--- a/lib/include/service.h
+++ b/lib/include/service.h
@@ -19,6 +19,8 @@ enum {
 		it terminates.
 	*/
 	SVC_RESPAWN,
+
+	SVC_MAX
 };
 
 enum {
diff --git a/lib/include/util.h b/lib/include/util.h
index 90ca902..8550695 100644
--- a/lib/include/util.h
+++ b/lib/include/util.h
@@ -15,11 +15,6 @@
 
 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
 
-typedef struct {
-	const char *name;
-	int value;
-} enum_map_t;
-
 typedef struct exec_t {
 	struct exec_t *next;
 	int argc;		/* number of elements in argument vector */
@@ -37,31 +32,8 @@ enum {
 	SOCK_FLAG_DGRAM = 0x04,
 };
 
-/*
-	Search through an array of enum_map_t entries to resolve a string to
-	a numeric value. The end of the map is indicated by a sentinel entry
-	with the name set to NULL.
-*/
-const enum_map_t *enum_by_name(const enum_map_t *map, const char *name);
-
-/*
-	Search through an array of enum_map_t entries to resolve a numeric
-	value to a string name. The end of the map is indicated by a sentinel
-	entry with the name set to NULL.
-*/
-const char *enum_to_name(const enum_map_t *map, int value);
-
-/* print a default version info and license string */
-NORETURN void print_version(const char *program);
-
 int setup_tty(const char *tty, bool truncate);
 
 NORETURN void argv_exec(exec_t *e);
 
-/*
-	Similar to openat: opens a file relative to a dirfd, but returns
-	a FILE pointer instead of an fd.
- */
-FILE *fopenat(int fd, const char *filename, const char *mode);
-
 #endif /* UTIL_H */
diff --git a/lib/init/svcmap.c b/lib/init/svcmap.c
index fa2932d..6358a4f 100644
--- a/lib/init/svcmap.c
+++ b/lib/init/svcmap.c
@@ -1,41 +1,49 @@
 /* SPDX-License-Identifier: ISC */
+#include <string.h>
 #include "service.h"
-#include "util.h"
 
-static const enum_map_t type_map[] = {
-	{ "once", SVC_ONCE },
-	{ "wait", SVC_WAIT },
-	{ "respawn", SVC_RESPAWN },
-	{ NULL, 0 },
+static const char *type_map[] = {
+	"once",
+	"wait",
+	"respawn",
 };
 
-static const enum_map_t target_map[] = {
-	{ "boot", TGT_BOOT },
-	{ "shutdown", TGT_SHUTDOWN },
-	{ "reboot", TGT_REBOOT },
-	{ NULL, 0 },
+static const char *target_map[] = {
+	"boot",
+	"shutdown",
+	"reboot",
 };
 
 const char *svc_type_to_string(int type)
 {
-	return enum_to_name(type_map, type);
+	return type >= 0 && type < SVC_MAX ? type_map[type] : NULL;
 }
 
 int svc_type_from_string(const char *type)
 {
-	const enum_map_t *ent = enum_by_name(type_map, type);
+	size_t i;
 
-	return ent == NULL ? -1 : ent->value;
+	for (i = 0; i < ARRAY_SIZE(type_map); ++i) {
+		if (strcmp(type_map[i], type) == 0)
+			return i;
+	}
+
+	return -1;
 }
 
 const char *svc_target_to_string(int target)
 {
-	return enum_to_name(target_map, target);
+	return target >= 0 && target < TGT_MAX ? target_map[target] : NULL;
 }
 
 int svc_target_from_string(const char *target)
 {
-	const enum_map_t *ent = enum_by_name(target_map, target);
+	size_t i;
+
+	for (i = 0; i < ARRAY_SIZE(target_map); ++i) {
+		if (strcmp(target_map[i], target) == 0)
+			return i;
+	}
 
-	return ent == NULL ? -1 : ent->value;
+	return -1;
 }
diff --git a/lib/libcfg/rdline.c b/lib/libcfg/rdline.c
index ab7b101..ee9ee8b 100644
--- a/lib/libcfg/rdline.c
+++ b/lib/libcfg/rdline.c
@@ -5,6 +5,7 @@
 #include <errno.h>
 #include <ctype.h>
 #include <stdio.h>
+#include <fcntl.h>
 
 #include "libcfg.h"
 #include "util.h"
@@ -12,18 +13,26 @@
 int rdline_init(rdline_t *t, int dirfd, const char *filename,
 		int argc, const char *const *argv)
 {
+	int fd = openat(dirfd, filename, O_RDONLY);
+
+	if (fd == -1)
+		goto fail_open;
+
 	memset(t, 0, sizeof(*t));
 
-	t->fp = fopenat(dirfd, filename, "r");
+	t->fp = fdopen(fd, "r");
 	if (t->fp == NULL) {
-		perror(filename);
-		return -1;
+		close(fd);
+		goto fail_open;
 	}
 
 	t->filename = filename;
 	t->argc = argc;
 	t->argv = argv;
 	return 0;
+fail_open:
+	perror(filename);
+	return -1;
 }
 
 void rdline_cleanup(rdline_t *t)
diff --git a/lib/util/enum_by_name.c b/lib/util/enum_by_name.c
deleted file mode 100644
index fa0131b..0000000
--- a/lib/util/enum_by_name.c
+++ /dev/null
@@ -1,16 +0,0 @@
-/* SPDX-License-Identifier: ISC */
-#include <string.h>
-
-#include "util.h"
-
-const enum_map_t *enum_by_name(const enum_map_t *map, const char *name)
-{
-	size_t i;
-
-	for (i = 0; map[i].name != NULL; ++i) {
-		if (!strcmp(map[i].name, name))
-			return map + i;
-	}
-
-	return NULL;
-}
diff --git a/lib/util/enum_to_name.c b/lib/util/enum_to_name.c
deleted file mode 100644
index 70e3c2f..0000000
--- a/lib/util/enum_to_name.c
+++ /dev/null
@@ -1,16 +0,0 @@
-/* SPDX-License-Identifier: ISC */
-#include <string.h>
-
-#include "util.h"
-
-const char *enum_to_name(const enum_map_t *map, int value)
-{
-	size_t i;
-
-	for (i = 0; map[i].name != NULL; ++i) {
-		if (map[i].value == value)
-			return map[i].name;
-	}
-
-	return NULL;
-}
diff --git a/lib/util/fopenat.c b/lib/util/fopenat.c
deleted file mode 100644
index d47c002..0000000
--- a/lib/util/fopenat.c
+++ /dev/null
@@ -1,54 +0,0 @@
-/* SPDX-License-Identifier: ISC */
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <errno.h>
-
-#include "util.h"
-
-FILE *fopenat(int dirfd, const char *filename, const char *mode)
-{
-	const char *ptr = mode;
-	int fd, flags = 0;
-	FILE *fp;
-
-	switch (*(ptr++)) {
-	case 'r':
-		flags = O_RDONLY;
-		break;
-	case 'w':
-		flags = O_WRONLY | O_CREAT | O_TRUNC;
-		break;
-	case 'a':
-		flags = O_WRONLY | O_CREAT | O_APPEND;
-		break;
-	default:
-		errno = EINVAL;
-		return NULL;
-	}
-
-	if (*ptr == '+') {
-		flags = (flags & ~(O_RDONLY | O_WRONLY)) | O_RDWR;
-		++ptr;
-	}
-
-	if (*ptr == 'b')
-		++ptr;
-
-	if (*ptr != '\0') {
-		errno = EINVAL;
-		return NULL;
-	}
-
-	fd = openat(dirfd, filename, flags, 0644);
-	if (fd == -1)
-		return NULL;
-
-	fp = fdopen(fd, mode);
-	if (fp == NULL)
-		close(fd);
-
-	return fp;
-}
diff --git a/lib/util/print_version.c b/lib/util/print_version.c
deleted file mode 100644
index 47508b5..0000000
--- a/lib/util/print_version.c
+++ /dev/null
@@ -1,18 +0,0 @@
-/* SPDX-License-Identifier: ISC */
-#include <stdlib.h>
-#include <stdio.h>
-
-#include "config.h"
-#include "util.h"
-
-static const char *version_string =
-"%s (pygos init) " PACKAGE_VERSION "\n"
-"Copyright (C) 2018 David Oberhollenzer\n\n"
-"This is free software: you are free to change and redistribute it.\n"
-"There is NO WARRANTY, to the extent permitted by law.\n";
-
-void print_version(const char *program)
-{
-	fprintf(stdout, version_string, program);
-	exit(EXIT_SUCCESS);
-}