Add options to print the argument and environment string parameters to

execve().

This could be done in a more general manner but it still wouldn't
be very pretty.

MFC after:	 3 weeks

1 files changed, 9 insertions, 3 deletions

diff --git a/usr.bin/truss/main.c b/usr.bin/truss/main.c
index f8b54fe..e100c16 100644
--- a/usr.bin/truss/main.c
+++ b/usr.bin/truss/main.c
@@ -67,8 +67,8 @@ static __inline void
 usage(void)
 {
   fprintf(stderr, "%s\n%s\n",
-	"usage: truss [-fdDS] [-o file] -p pid",
-	"       truss [-fdDS] [-o file] command [args]");
+	"usage: truss [-faedDS] [-o file] -p pid",
+	"       truss [-faedDS] [-o file] command [args]");
   exit(1);
 }
 
@@ -146,7 +146,7 @@ main(int ac, char **av) {
   bzero(trussinfo, sizeof(struct trussinfo));
   trussinfo->outfile = stderr;
 
-  while ((c = getopt(ac, av, "p:o:fdDS")) != -1) {
+  while ((c = getopt(ac, av, "p:o:faedDS")) != -1) {
     switch (c) {
     case 'p':	/* specified pid */
       trussinfo->pid = atoi(optarg);
@@ -154,6 +154,12 @@ main(int ac, char **av) {
     case 'f': /* Follow fork()'s */
       trussinfo->flags |= FOLLOWFORKS;
       break;
+    case 'a': /* Print execve() argument strings. */
+      trussinfo->flags |= EXECVEARGS;
+      break;
+    case 'e': /* Print execve() environment strings. */
+      trussinfo->flags |= EXECVEENVS;
+      break;
     case 'd': /* Absolute timestamps */
       trussinfo->flags |= ABSOLUTETIMESTAMPS;
       break;