Promote logger, and fluff up help text a bit.

1 files changed, 70 insertions, 0 deletions

diff --git a/toys/posix/logger.c b/toys/posix/logger.c
new file mode 100644
index 00000000..16262c9f
--- /dev/null
+++ b/toys/posix/logger.c
@@ -0,0 +1,70 @@
+/* logger.c - Log messages.
+ *
+ * Copyright 2013 Ilya Kuzmich <ilya.kuzmich@gmail.com>
+ *
+ * See http://pubs.opengroup.org/onlinepubs/9699919799/utilities/logger.html
+ *
+ * Deviations from posix: specified manner and format, defined implementation.
+
+USE_LOGGER(NEWTOY(logger, "st:p:", TOYFLAG_USR|TOYFLAG_BIN))
+
+config LOGGER
+  bool "logger"
+  default y
+  help
+    usage: logger [-s] [-t TAG] [-p [FACILITY.]PRIORITY] [message...]
+
+    Log message (or stdin) to syslog.
+
+    -s	Also write message to stderr
+    -t	Use TAG instead of username to identify message source
+    -p	Specify PRIORITY with optional FACILITY. Default is "user.notice"
+*/
+
+#define FOR_logger
+#include "toys.h"
+
+GLOBALS(
+  char *priority;
+  char *ident;
+)
+
+void logger_main(void)
+{
+  int facility = LOG_USER, priority = LOG_NOTICE, len;
+  char *s1, *s2, **arg;
+  CODE *code;
+
+  if (!TT.ident) TT.ident = xstrdup(xgetpwuid(geteuid())->pw_name);
+  if (toys.optflags & FLAG_p) {
+    if (!(s1 = strchr(TT.priority, '.'))) s1 = TT.priority;
+    else {
+      *s1++ = 0;
+      for (code = facilitynames; code->c_name; code++)
+        if (!strcasecmp(TT.priority, code->c_name)) break;
+      if (!code->c_name) error_exit("bad facility: %s", TT.priority);
+      facility = code->c_val;
+    }
+
+    for (code = prioritynames; code->c_name; code++)
+      if (!strcasecmp(s1, code->c_name)) break;
+    if (!code->c_name) error_exit("bad priority: %s", s1);
+  }
+
+
+  if (toys.optc) {
+    for (len = 0, arg = toys.optargs; *arg; arg++) len += strlen(*arg)+1;
+    s1 = s2 = xmalloc(len);
+    for (arg = toys.optargs; *arg; arg++) {
+      if (arg != toys.optargs) *s2++ = ' ';
+      s2 = stpcpy(s2, *arg);
+    }
+  } else {
+    toybuf[readall(0, toybuf, sizeof(toybuf)-1)] = 0;
+    s1 = toybuf;
+  }
+
+  openlog(TT.ident, LOG_PERROR*!!(toys.optflags&FLAG_s), facility);
+  syslog(priority, "%s", s1);
+  closelog();
+}