X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=shell%2Fash.c;h=6d96bce5aefb48288d9449017d6a36f83a07ffde;hb=98ee06d3d46aa7f89c204681c7075b53300a6a6e;hp=97f0d6befce48949d3c5bbf83fd84e94ca1ea658;hpb=15b213ef5a0834eb06a0183ab839ac883d829d5a;p=oweals%2Fbusybox.git

diff --git a/shell/ash.c b/shell/ash.c
index 97f0d6bef..6d96bce5a 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -85,7 +85,7 @@
 #ifdef CONFIG_ASH_JOB_CONTROL
 #define JOBS 1
 #else
-#undef JOBS
+#define JOBS 0
 #endif
 
 #if JOBS || defined(CONFIG_ASH_READ_NCHARS)
@@ -1381,15 +1381,7 @@ static const struct builtincmd builtincmd[] = {
 	{ BUILTIN_REGULAR       "wait", waitcmd },
 };
 
-#define NUMBUILTINS  (sizeof (builtincmd) / sizeof (struct builtincmd) )
-
-static const char *safe_applets[] = { 
-	"[", "test", "echo", "cat",
-	"ln", "cp", "touch", "mkdir", "rm",
-	"cut", "hexdump", "awk", "sort",
-	"find", "xargs", "ls", "dd",
-	"chown", "chmod"
-};
+#define NUMBUILTINS (sizeof(builtincmd) / sizeof(builtincmd[0]))
 
 
 struct cmdentry {
@@ -2042,7 +2034,30 @@ static void exitshell(void) ATTRIBUTE_NORETURN;
 
 static int is_safe_applet(char *name)
 {
-	int n = sizeof(safe_applets) / sizeof(char *);
+	/* It isn't a bug to have non-existent applet here... */
+	/* ...just a waste of space... */
+	static const char safe_applets[][8] = { 
+		"["
+		USE_AWK    (, "awk"    )
+		USE_CAT    (, "cat"    )
+		USE_CHMOD  (, "chmod"  )
+		USE_CHOWN  (, "chown"  )
+		USE_CP     (, "cp"     )
+		USE_CUT    (, "cut"    )
+		USE_DD     (, "dd"     )
+		USE_ECHO   (, "echo"   )
+		USE_FIND   (, "find"   )
+		USE_HEXDUMP(, "hexdump")
+		USE_LN     (, "ln"     )
+		USE_LS     (, "ls"     )
+		USE_MKDIR  (, "mkdir"  )
+		USE_RM     (, "rm"     )
+		USE_SORT   (, "sort"   )
+		USE_TEST   (, "test"   )
+		USE_TOUCH  (, "touch"  )
+		USE_XARGS  (, "xargs"  )
+	};
+	int n = sizeof(safe_applets) / sizeof(safe_applets[0]);
 	int i;
 	for (i = 0; i < n; i++)
 		if (strcmp(safe_applets[i], name) == 0)
@@ -2402,7 +2417,7 @@ static const char * updatepwd(const char *dir)
 	}
 	p = strtok(cdcomppath, "/");
 	while (p) {
-		switch(*p) {
+		switch (*p) {
 		case '.':
 			if (p[1] == '.' && p[2] == '\0') {
 				while (new > lim) {
@@ -3702,12 +3717,11 @@ shellexec(char **argv, const char *path, int idx)
 
 	clearredir(1);
 	envp = environment();
-	if (strchr(argv[0], '/') != NULL
-		|| is_safe_applet(argv[0])
+	if (strchr(argv[0], '/')
 #ifdef CONFIG_FEATURE_SH_STANDALONE_SHELL
-		|| find_applet_by_name(argv[0])
+	 || find_applet_by_name(argv[0])
 #endif
-						) {
+	) {
 		tryexec(argv[0], argv, envp);
 		e = errno;
 	} else {
@@ -3750,7 +3764,10 @@ tryexec(char *cmd, char **argv, char **envp)
 	int argc = 0;
 	char **c;
 	
-	if(strchr(cmd, '/') == NULL && is_safe_applet(cmd) && (a = find_applet_by_name(cmd)) != NULL) {
+	if (strchr(cmd, '/') == NULL
+	 && (a = find_applet_by_name(cmd)) != NULL
+	 && is_safe_applet(cmd)
+	) {
 		c = argv;
 		while (*c != NULL) {
 			c++; argc++;
@@ -3759,7 +3776,7 @@ tryexec(char *cmd, char **argv, char **envp)
 		exit(a->main(argc, argv));
 	}
 #ifdef CONFIG_FEATURE_SH_STANDALONE_SHELL
-	if(find_applet_by_name(cmd) != NULL) {
+	if (find_applet_by_name(cmd) != NULL) {
 		/* re-exec ourselves with the new arguments */
 		execve(CONFIG_BUSYBOX_EXEC_PATH,argv,envp);
 		/* If they called chroot or otherwise made the binary no longer
@@ -4802,7 +4819,7 @@ exptilde(char *startp, char *p, int flag)
 	name = p + 1;
 
 	while ((c = *++p) != '\0') {
-		switch(c) {
+		switch (c) {
 		case CTLESC:
 			return startp;
 		case CTLQUOTEMARK:
@@ -6647,7 +6664,7 @@ usage:
 }
 #endif /* JOBS */
 
-#if defined(JOBS) || DEBUG
+#if JOBS || DEBUG
 static int
 jobno(const struct job *jp)
 {
@@ -8172,7 +8189,7 @@ exitcmd(int argc, char **argv)
 static int
 echocmd(int argc, char **argv)
 {
-	return bb_echo(argc, argv);
+	return bb_echo(argv);
 }
 #endif
 
@@ -10211,7 +10228,7 @@ readtoken1(int firstc, int syntax, char *eofmark, int striptabs)
 		CHECKEND();     /* set c to PEOF if at end of here document */
 		for (;;) {      /* until end of line or end of word */
 			CHECKSTRSPACE(4, out);  /* permit 4 calls to USTPUTC */
-			switch(SIT(c, syntax)) {
+			switch (SIT(c, syntax)) {
 			case CNL:       /* '\n' */
 				if (syntax == BASESYNTAX)
 					goto endword;   /* exit outer loop */
@@ -11282,7 +11299,7 @@ shtree(union node *n, int ind, char *pfx, FILE *fp)
 		return;
 
 	indent(ind, pfx, fp);
-	switch(n->type) {
+	switch (n->type) {
 	case NSEMI:
 		s = "; ";
 		goto binop;
@@ -11893,17 +11910,11 @@ static int helpcmd(int argc, char **argv)
 		}
 	}
 #ifdef CONFIG_FEATURE_SH_STANDALONE_SHELL
-	{
-		extern const struct BB_applet applets[];
-		extern const size_t NUM_APPLETS;
-
-		for (i = 0; i < NUM_APPLETS; i++) {
-
-			col += out1fmt("%c%s", ((col == 0) ? '\t' : ' '), applets[i].name);
-			if (col > 60) {
-				out1fmt("\n");
-				col = 0;
-			}
+	for (i = 0; i < NUM_APPLETS; i++) {
+		col += out1fmt("%c%s", ((col == 0) ? '\t' : ' '), applets[i].name);
+		if (col > 60) {
+			out1fmt("\n");
+			col = 0;
 		}
 	}
 #endif
@@ -12619,7 +12630,7 @@ readcmd(int argc, char **argv)
 	while ((i = nextopt("p:r")) != '\0')
 #endif
 	{
-		switch(i) {
+		switch (i) {
 		case 'p':
 			prompt = optionarg;
 			break;
@@ -12693,7 +12704,7 @@ readcmd(int argc, char **argv)
 		FD_ZERO (&set);
 		FD_SET (0, &set);
 
-		i = select (FD_SETSIZE, &set, NULL, NULL, &ts);
+		i = select(FD_SETSIZE, &set, NULL, NULL, &ts);
 		if (!i) {
 #if defined(CONFIG_ASH_READ_NCHARS)
 			if (nch_flag)
@@ -13585,7 +13596,7 @@ static arith_t arith (const char *expr, int *perrcode)
 		 * a number, since it evaluates to one). Think about it.
 		 * It makes sense. */
 		if (lasttok != TOK_NUM) {
-			switch(op) {
+			switch (op) {
 				case TOK_ADD:
 				    op = TOK_UPLUS;
 				    break;