treewide: use log_*_errno whenever %m is in the format string

[thirdparty/systemd.git] / src / binfmt / binfmt.c

diff --git a/src/binfmt/binfmt.c b/src/binfmt/binfmt.c
index f8c97b5ca54869da0a170697b4e0631e0df53e50..089b7754a431b6cc4e9cff611b7ad0f06fa80b9e 100644 (file)
--- a/src/binfmt/binfmt.c
+++ b/src/binfmt/binfmt.c
@@ -33,16 +33,10 @@
 #include "strv.h"
 #include "util.h"
 #include "conf-files.h"
+#include "fileio.h"
+#include "build.h"
 
-static const char conf_file_dirs[] =
-        "/etc/binfmt.d\0"
-        "/run/binfmt.d\0"
-        "/usr/local/lib/binfmt.d\0"
-        "/usr/lib/binfmt.d\0"
-#ifdef HAVE_SPLIT_USR
-        "/lib/binfmt.d\0"
-#endif
-        ;
+static const char conf_file_dirs[] = CONF_DIRS_NULSTR("binfmt");
 
 static int delete_rule(const char *rule) {
         _cleanup_free_ char *x = NULL, *fn = NULL;
@@ -61,7 +55,7 @@ static int delete_rule(const char *rule) {
         if (!fn)
                 return log_oom();
 
-        return write_one_line_file(fn, "-1");
+        return write_string_file(fn, "-1");
 }
 
 static int apply_rule(const char *rule) {
@@ -69,11 +63,9 @@ static int apply_rule(const char *rule) {
 
         delete_rule(rule);
 
-        r = write_one_line_file("/proc/sys/fs/binfmt_misc/register", rule);
-        if (r < 0) {
-                log_error("Failed to add binary format: %s", strerror(-r));
-                return r;
-        }
+        r = write_string_file("/proc/sys/fs/binfmt_misc/register", rule);
+        if (r < 0)
+                return log_error_errno(r, "Failed to add binary format: %m");
 
         return 0;
 }
@@ -84,16 +76,15 @@ static int apply_file(const char *path, bool ignore_enoent) {
 
         assert(path);
 
-        r = search_and_fopen_nulstr(path, "re", conf_file_dirs, &f);
+        r = search_and_fopen_nulstr(path, "re", NULL, conf_file_dirs, &f);
         if (r < 0) {
                 if (ignore_enoent && r == -ENOENT)
                         return 0;
 
-                log_error("Failed to open file '%s', ignoring: %s", path, strerror(-r));
-                return r;
+                return log_error_errno(r, "Failed to open file '%s', ignoring: %m", path);
         }
 
-        log_debug("apply: %s\n", path);
+        log_debug("apply: %s", path);
         for (;;) {
                 char l[LINE_MAX], *p;
                 int k;
@@ -102,14 +93,14 @@ static int apply_file(const char *path, bool ignore_enoent) {
                         if (feof(f))
                                 break;
 
-                        log_error("Failed to read file '%s', ignoring: %m", path);
+                        log_error_errno(errno, "Failed to read file '%s', ignoring: %m", path);
                         return -errno;
                 }
 
                 p = strstrip(l);
                 if (!*p)
                         continue;
-                if (strchr(COMMENTS, *p))
+                if (strchr(COMMENTS "\n", *p))
                         continue;
 
                 k = apply_rule(p);
@@ -120,21 +111,24 @@ static int apply_file(const char *path, bool ignore_enoent) {
         return r;
 }
 
-static int help(void) {
-
+static void help(void) {
         printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n"
                "Registers binary formats.\n\n"
-               "  -h --help             Show this help\n",
-               program_invocation_short_name);
-
-        return 0;
+               "  -h --help             Show this help\n"
+               "     --version          Show package version\n"
+               , program_invocation_short_name);
 }
 
 static int parse_argv(int argc, char *argv[]) {
 
+        enum {
+                ARG_VERSION = 0x100,
+        };
+
         static const struct option options[] = {
                 { "help",      no_argument,       NULL, 'h'           },
-                { NULL,        0,                 NULL, 0             }
+                { "version",   no_argument,       NULL, ARG_VERSION   },
+                {}
         };
 
         int c;
@@ -142,7 +136,7 @@ static int parse_argv(int argc, char *argv[]) {
         assert(argc >= 0);
         assert(argv);
 
-        while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) {
+        while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
 
                 switch (c) {
 
@@ -150,14 +144,17 @@ static int parse_argv(int argc, char *argv[]) {
                         help();
                         return 0;
 
+                case ARG_VERSION:
+                        puts(PACKAGE_STRING);
+                        puts(SYSTEMD_FEATURES);
+                        return 0;
+
                 case '?':
                         return -EINVAL;
 
                 default:
-                        log_error("Unknown option code %c", c);
-                        return -EINVAL;
+                        assert_not_reached("Unhandled option");
                 }
-        }
 
         return 1;
 }
@@ -191,12 +188,12 @@ int main(int argc, char *argv[]) {
 
                 r = conf_files_list_nulstr(&files, ".conf", NULL, conf_file_dirs);
                 if (r < 0) {
-                        log_error("Failed to enumerate binfmt.d files: %s", strerror(-r));
+                        log_error_errno(r, "Failed to enumerate binfmt.d files: %m");
                         goto finish;
                 }
 
                 /* Flush out all rules */
-                write_one_line_file("/proc/sys/fs/binfmt_misc/status", "-1");
+                write_string_file("/proc/sys/fs/binfmt_misc/status", "-1");
 
                 STRV_FOREACH(f, files) {
                         k = apply_file(*f, true);