ptp4l: correct print global set functions

this patch updates the global set functions to allow the user to set the
proper value instead of only being allowed to enable (or disable) a particular
feature. The new patch allows the function to specify exactly what they want
the value to be.

This patch also clarifies what -q and -v do by removing mention of quiet mode
and verbose mode. It is easy for a user to confuse and assume that -q disables
-v when this is not true.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>

pmc.c

@@ -347,8 +347,8 @@ int main(int argc, char *argv[])
 	pollfd[1].fd = fdarray.fd[FD_GENERAL];
 	pollfd[1].events = POLLIN|POLLPRI;
 
-	print_no_syslog();
-	print_verbose();
+	print_set_syslog(1);
+	print_set_verbose(1);
 
 	while (1) {
 		cnt = poll(pollfd, N_FD, -1);

print.c

@@ -24,13 +24,13 @@
 
 #include "print.h"
 
-static int verbose;
+static int verbose = 0;
 static int print_level = LOG_INFO;
 static int use_syslog = 1;
 
-void print_no_syslog(void)
+void print_set_syslog(int value)
 {
-	use_syslog = 0;
+	use_syslog = value ? 1 : 0;
 }
 
 void print_set_level(int level)
@@ -38,9 +38,9 @@ void print_set_level(int level)
 	print_level = level;
 }
 
-void print_verbose(void)
+void print_set_verbose(int value)
 {
-	verbose = 1;
+	verbose = value ? 1 : 0;
 }
 
 void print(int level, char const *format, ...)

print.h

@@ -24,9 +24,9 @@
 
 void print(int level, char const *format, ...);
 
-void print_no_syslog(void);
+void print_set_syslog(int value);
 void print_set_level(int level);
-void print_verbose(void);
+void print_set_verbose(int value);
 
 #define pr_emerg(x...)   print(LOG_EMERG, x)
 #define pr_alert(x...)   print(LOG_ALERT, x)

ptp4l.c

@@ -63,8 +63,8 @@ static void usage(char *progname)
 		"           (ignored for SOFTWARE/LEGACY HW time stamping)\n"
 		" -s        slave only mode (overrides configuration file)\n"
 		" -l [num]  set the logging level to 'num'\n"
-		" -q        quiet mode, do not use syslog(3)\n"
-		" -v        verbose mode, print messages to stdout\n"
+		" -q        do not print messages to the syslog\n"
+		" -v        print messages to stdout\n"
 		" -h        prints this message and exits\n"
 		"\n",
 		progname);
@@ -137,10 +137,10 @@ int main(int argc, char *argv[])
 			print_set_level(atoi(optarg));
 			break;
 		case 'q':
-			print_no_syslog();
+			print_set_syslog(1);
 			break;
 		case 'v':
-			print_verbose();
+			print_set_verbose(1);
 			break;
 		case 'h':
 			usage(progname);