ash: make tryexec(cmd) parameter const char

Fewer casts this way.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/shell/ash.c b/shell/ash.c
index f9c78ee78..0de81b325 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -7687,7 +7687,7 @@ static int builtinloc = -1;     /* index in path of %builtin, or -1 */
 
 
 static void
-tryexec(IF_FEATURE_SH_STANDALONE(int applet_no,) char *cmd, char **argv, char **envp)
+tryexec(IF_FEATURE_SH_STANDALONE(int applet_no,) const char *cmd, char **argv, char **envp)
 {
 #if ENABLE_FEATURE_SH_STANDALONE
         if (applet_no >= 0) {
@@ -7713,7 +7713,7 @@ tryexec(IF_FEATURE_SH_STANDALONE(int applet_no,) char *cmd, char **argv, char **
 #else
         execve(cmd, argv, envp);
 #endif
-        if (cmd != (char*) bb_busybox_exec_path && errno == ENOEXEC) {
+        if (cmd != bb_busybox_exec_path && errno == ENOEXEC) {
                 /* Run "cmd" as a shell script:
                  * http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html
                  * "If the execve() function fails with ENOEXEC, the shell
@@ -7730,8 +7730,8 @@ tryexec(IF_FEATURE_SH_STANDALONE(int applet_no,) char *cmd, char **argv, char **
                  * message and exit code 126. For one, this prevents attempts
                  * to interpret foreign ELF binaries as shell scripts.
                  */
-                argv[0] = cmd;
-                cmd = (char*) bb_busybox_exec_path;
+                argv[0] = (char*) cmd;
+                cmd = bb_busybox_exec_path;
                 /* NB: this is only possible because all callers of shellexec()
                  * ensure that the argv[-1] slot exists!
                  */