Add verbosity setting, prepare for 1.1.2.0

Signed-off-by: Laurent Bercot <ska@appnovation.com>

2 files changed, 43 insertions, 32 deletions

diff --git a/src/init/s6-linux-init-maker.c b/src/init/s6-linux-init-maker.c
index d3b921d..584b0b7 100644
--- a/src/init/s6-linux-init-maker.c
+++ b/src/init/s6-linux-init-maker.c
@@ -26,7 +26,7 @@
 #include "defaults.h"
 #include "initctl.h"
 
-#define USAGE "s6-linux-init-maker [ -c basedir ] [ -u log_user ] [ -G early_getty_cmd ] [ -1 ] [ -L ] [ -p initial_path ] [ -m initial_umask ] [ -t timestamp_style ] [ -d slashdev ] [ -s env_store ] [ -e initial_envvar ... ] [ -q default_grace_time ] [ -D initdefault ] [ -n | -N ] [ -f skeldir ] [ -R resourcelimits ] [ -C ] [ -B ] [ -S ] dir"
+#define USAGE "s6-linux-init-maker [ -V boot_verbosity ] [ -c basedir ] [ -u log_user ] [ -G early_getty_cmd ] [ -1 ] [ -L ] [ -p initial_path ] [ -m initial_umask ] [ -t timestamp_style ] [ -d slashdev ] [ -s env_store ] [ -e initial_envvar ... ] [ -q default_grace_time ] [ -D initdefault ] [ -n | -N ] [ -f skeldir ] [ -R resourcelimits ] [ -C ] [ -B ] [ -S ] dir"
 #define dieusage() strerr_dieusage(100, USAGE)
 #define dienomem() strerr_diefu1sys(111, "stralloc_catb") ;
 
@@ -43,6 +43,7 @@ static char const *skeldir = S6_LINUX_INIT_SKELDIR ;
 static unsigned int initial_umask = 0022 ;
 static unsigned int timestamp_style = 1 ;
 static unsigned int finalsleep = 3000 ;
+static unsigned int boot_verbosity = 1 ;
 static int mounttype = 1 ;
 static int console = 0 ;
 static int logouthookd = 0 ;
@@ -239,47 +240,47 @@ static int sig_script (buffer *b, char const *option)
 static inline int stage1_script (buffer *b, char const *data)
 {
   size_t sabase = satmp.len ;
+  char fmt[UINT_OFMT] ;
   if (!put_shebang_options(b, "-S0")) return 0 ;
   if (ressa.len)
   {
     if (buffer_puts(b, S6_EXTBINPREFIX "s6-softlimit -H ") < 0
      || buffer_put(b, ressa.s, ressa.len) < 0) goto err ;
   }
-  if (buffer_puts(b, S6_LINUX_INIT_EXTBINPREFIX "s6-linux-init -c ") < 0
-   || !string_quote(&satmp, robase, strlen(robase))) return 0 ;
-  if (buffer_put(b, satmp.s + sabase, satmp.len - sabase) < 0) goto err ;
+  if (buffer_puts(b, S6_LINUX_INIT_EXTBINPREFIX "s6-linux-init -v ") < 0
+   || buffer_put(b, fmt, uint_fmt(fmt, boot_verbosity)) < 0
+   || buffer_puts(b, " -m 00") < 0
+   || buffer_put(b, fmt, uint_ofmt(fmt, initial_umask)) < 0
+   || buffer_puts(b, " -c ") < 0
+   || !string_quote(&satmp, robase, strlen(robase))
+   || buffer_put(b, satmp.s + sabase, satmp.len - sabase) < 0) goto err ;
   satmp.len = sabase ;
-  {
-    char fmt[UINT_OFMT] ;
-    if (buffer_puts(b, " -m 00") < 0
-     || buffer_put(b, fmt, uint_ofmt(fmt, initial_umask)) < 0) return 0 ;
-  }
   if (initial_path)
   {
     if (buffer_puts(b, " -p ") < 0
-     || !string_quote(&satmp, initial_path, strlen(initial_path))) return 0 ;
-    if (buffer_put(b, satmp.s + sabase, satmp.len - sabase) < 0) goto err ;
+     || !string_quote(&satmp, initial_path, strlen(initial_path))
+     || buffer_put(b, satmp.s + sabase, satmp.len - sabase) < 0) goto err ;
     satmp.len = sabase ;
   }
   if (env_store)
   {
     if (buffer_puts(b, " -s ") < 0
-     || !string_quote(&satmp, env_store, strlen(env_store))) return 0 ;
-    if (buffer_put(b, satmp.s + sabase, satmp.len - sabase) < 0) goto err ;
+     || !string_quote(&satmp, env_store, strlen(env_store))
+     || buffer_put(b, satmp.s + sabase, satmp.len - sabase) < 0) goto err ;
     satmp.len = sabase ;
   }
   if (slashdev)
   {
     if (buffer_puts(b, " -d ") < 0
-     || !string_quote(&satmp, slashdev, strlen(slashdev))) return 0 ;
-    if (buffer_put(b, satmp.s + sabase, satmp.len - sabase) < 0) goto err ;
+     || !string_quote(&satmp, slashdev, strlen(slashdev))
+     || buffer_put(b, satmp.s + sabase, satmp.len - sabase) < 0) goto err ;
     satmp.len = sabase ;
   }
   if (initdefault)
   {
     if (buffer_puts(b, " -D ") < 0
-     || !string_quote(&satmp, initdefault, strlen(initdefault))) return 0 ;
-    if (buffer_put(b, satmp.s + sabase, satmp.len - sabase) < 0) goto err ;
+     || !string_quote(&satmp, initdefault, strlen(initdefault))
+     || buffer_put(b, satmp.s + sabase, satmp.len - sabase) < 0) goto err ;
     satmp.len = sabase ;
   }
   if (mounttype == 2)
@@ -663,10 +664,11 @@ int main (int argc, char const *const *argv, char const *const *envp)
     subgetopt l = SUBGETOPT_ZERO ;
     for (;;)
     {
-      int opt = subgetopt_r(argc, argv, "c:u:G:1Lp:m:t:d:s:e:E:q:D:nNf:R:CBS", &l) ;
+      int opt = subgetopt_r(argc, argv, "V:c:u:G:1Lp:m:t:d:s:e:E:q:D:nNf:R:CBS", &l) ;
       if (opt == -1) break ;
       switch (opt)
       {
+        case 'V' : if (!uint0_scan(l.arg, &boot_verbosity)) dieusage() ; break ;
         case 'c' : robase = l.arg ; break ;
         case 'u' : log_user = l.arg ; break ;
         case 'G' : early_getty = l.arg ; break ;
diff --git a/src/init/s6-linux-init.c b/src/init/s6-linux-init.c
index 3c160bf..a8d2b9b 100644
--- a/src/init/s6-linux-init.c
+++ b/src/init/s6-linux-init.c
@@ -30,7 +30,7 @@
 #include "defaults.h"
 #include "initctl.h"
 
-#define USAGE "s6-linux-init [ -c basedir ] [ -p initpath ] [ -s envdumpdir ] [ -m umask ] [ -d devtmpfs ] [ -D initdefault ] [ -n | -N ] [ -C ] [ -B ]"
+#define USAGE "s6-linux-init [ -v verbosity ] [ -c basedir ] [ -p initpath ] [ -s envdumpdir ] [ -m umask ] [ -d devtmpfs ] [ -D initdefault ] [ -n | -N ] [ -C ] [ -B ]"
 #define dieusage() strerr_dieusage(100, USAGE)
 
 #define BANNER "\n  s6-linux-init version " S6_LINUX_INIT_VERSION "\n\n"
@@ -38,6 +38,7 @@
 static int inns = 0 ;
 static int nologger = 0 ;
 static int notifpipe[2] ;
+static unsigned int verbosity = 1 ;
 
 static inline char const *scan_cmdline (char const *initdefault, char const *const *argv, unsigned int argc)
 {
@@ -60,7 +61,7 @@ static inline void wait_for_notif (int fd)
     if (r < 0) strerr_diefu1sys(111, "read from notification pipe") ;
     if (!r)
     {
-      strerr_warnw1x("s6-svscan failed to send a notification byte!") ;
+      if (verbosity) strerr_warnw1x("s6-svscan failed to send a notification byte!") ;
       break ;
     }
     if (memchr(buf, '\n', r)) break ;
@@ -74,17 +75,23 @@ static void kbspecials (void)
   if (inns) return ;
   fd = open("/dev/tty0", O_RDONLY | O_NOCTTY) ;
   if (fd < 0)
-    strerr_warnwu2sys("open /dev/", "tty0 (kbrequest will not be handled)") ;
+  {
+    if (errno == ENOENT)
+    {
+      if (verbosity >= 2) strerr_warni1x("headless system detected") ;
+    }
+    else if (verbosity) strerr_warnwu2sys("open", " tty0 (kbrequest will not be handled)") ;
+  }
   else
   {
     if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0)
-      strerr_warnwu2sys("ioctl KDSIGACCEPT on ", "tty0 (kbrequest will not be handled)") ;
+      if (verbosity) strerr_warnwu2sys("ioctl KDSIGACCEPT on", " tty0 (kbrequest will not be handled)") ;
     close(fd) ;
   }
 
   sig_block(SIGINT) ; /* don't panic on early cad before s6-svscan catches it */
   if (reboot(RB_DISABLE_CAD) == -1)
-    strerr_warnwu1sys("trap ctrl-alt-del") ;
+    if (verbosity) strerr_warnwu1sys("trap ctrl-alt-del") ;
 }
 
 static void opendevnull (void)
@@ -92,7 +99,7 @@ static void opendevnull (void)
   if (open("/dev/null", O_RDONLY))
   {  /* ghetto /dev/null to the rescue */
     int p[2] ;
-    strerr_warnwu1sys("open /dev/null") ;
+    if (verbosity) strerr_warnwu1sys("open /dev/null") ;
     if (pipe(p) < 0) strerr_diefu1sys(111, "pipe") ;
     close(p[1]) ;
     if (fd_move(0, p[0]) < 0) strerr_diefu1sys(111, "fd_move to stdin") ;
@@ -118,7 +125,7 @@ static inline void run_stage2 (char const *basedir, char const **argv, unsigned
     close(0) ;
     if (openb_read(tty))
     {
-      strerr_warnwu2sys("open ", tty) ;
+      if (verbosity) strerr_warnwu2sys("open ", tty) ;
       opendevnull() ;
     }
   }
@@ -170,10 +177,11 @@ int main (int argc, char const **argv, char const *const *envp)
     subgetopt l = SUBGETOPT_ZERO ;
     for (;;)
     {
-      int opt = subgetopt_r(argc, argv, "c:p:s:m:d:D:nNCB", &l) ;
+      int opt = subgetopt_r(argc, argv, "v:c:p:s:m:d:D:nNCB", &l) ;
       if (opt == -1) break ;
       switch (opt)
       {
+        case 'v' : if (!uint0_scan(l.arg, &verbosity)) dieusage() ; break ;
         case 'c' : basedir = l.arg ; break ;
         case 'p' : path = l.arg ; break ;
         case 's' : envdumpdir = l.arg ; break ;
@@ -201,13 +209,13 @@ int main (int argc, char const **argv, char const *const *envp)
     }
     else
     {
-      if (r) strerr_warnw1x("parent wrote to fd 3!") ;
+      if (r) if (verbosity) strerr_warnw1x("parent wrote to fd 3!") ;
       close(3) ;
     }
     if (!slashdev && hasconsole && isatty(2 - nologger))
     {
       tty = ttyname(2 - nologger) ;
-      if (!tty) strerr_warnwu2sys("ttyname std", nologger ? "err" : "out") ;
+      if (!tty) if (verbosity) strerr_warnwu2sys("ttyname std", nologger ? "err" : "out") ;
     }
   }
   else if (hasconsole) allwrite(1, BANNER, sizeof(BANNER) - 1) ;
@@ -253,7 +261,7 @@ int main (int argc, char const **argv, char const *const *envp)
       if (umount(S6_LINUX_INIT_TMPFS) == -1)
       {
         if (errno != EINVAL)
-          strerr_warnwu1sys("umount " S6_LINUX_INIT_TMPFS) ;
+          if (verbosity) strerr_warnwu1sys("umount " S6_LINUX_INIT_TMPFS) ;
       }
       if (mount("tmpfs", S6_LINUX_INIT_TMPFS, "tmpfs", MS_NODEV | MS_NOSUID, "mode=0755") == -1)
         strerr_diefu1sys(111, "mount tmpfs on " S6_LINUX_INIT_TMPFS) ;
@@ -270,10 +278,10 @@ int main (int argc, char const **argv, char const *const *envp)
       strerr_diefu3sys(111, "copy ", fn, " to " S6_LINUX_INIT_TMPFS) ;
     memcpy(fn + dirlen + 1, ENVSTAGE1, sizeof(ENVSTAGE1)) ;
     if (envdir_internal(fn, &envmodifs, SKALIBS_ENVDIR_VERBATIM | SKALIBS_ENVDIR_NOCLAMP, '\n') == -1)
-      strerr_warnwu2sys("envdir ", fn) ;
+      if (verbosity) strerr_warnwu2sys("envdir ", fn) ;
   }
   if (envdumpdir && !env_dump(envdumpdir, 0700, envp))
-    strerr_warnwu2sys("dump kernel environment to ", envdumpdir) ;
+    if (verbosity) strerr_warnwu2sys("dump kernel environment to ", envdumpdir) ;
 
   if (!nologger)
   {
@@ -300,7 +308,8 @@ int main (int argc, char const **argv, char const *const *envp)
       newenvp[0] = pathvar ;
     }
     if (nologger && pipe(notifpipe) < 0) strerr_diefu1sys(111, "pipe") ;
-    if (tty && !slashdev && ioctl(2 - nologger, TIOCNOTTY) == -1) strerr_warnwu1sys("relinquish control terminal") ;
+    if (tty && !slashdev && ioctl(2 - nologger, TIOCNOTTY) == -1)
+      if (verbosity) strerr_warnwu1sys("relinquish control terminal") ;
 
     pid = fork() ;
     if (pid == -1) strerr_diefu1sys(111, "fork") ;