Move awk from textutils to editors. Cleanup run-parts, saves 200 bytes, moves the guts of run_parts to libbb to be used by ifupdown.

debianutils/run_parts.c

@@ -49,203 +49,57 @@
  * done - declare run_parts_main() as extern and any other function as static?
  */
 
-#include <stdio.h>
-#include <stdarg.h>
-#include <stdlib.h>
-/* #include <sys/types.h> */
-#include <sys/wait.h>
-#include <dirent.h>
-#include <sys/stat.h>
-#include <unistd.h>
 #include <getopt.h>
-#include <string.h>
-#include <errno.h>
-#include <ctype.h>
+#include <stdlib.h>
 
-#include "busybox.h"
-
-static int test_mode = 0;
-static int exitstatus = 0;
-
-static int argcount = 0, argsize = 0;
-static char **args = 0;
-
-
-/* set_umask */
-/* Check and set the umask of the program executed. As stated in the original
- * run-parts, the octal conversion in libc is not foolproof; it will take the 
- * 8 and 9 digits under some circumstances. We'll just have to live with it.
- */
-
-static void set_umask (void)
-{
-  int mask, result;
-
-  /*TODO
-   * We must substitute sscanf, according to bb's style guide? */
-  result = sscanf (optarg, "%o", &mask);
-  if ((result != 1) || (mask > 07777) || (mask < 0)) {
-	  perror_msg_and_die ("bad umask value");
-  }
-
-  umask (mask);
-}
-
-/* add_argument */
-/* Add an argument to the commands that we will call. Called once for
-   every argument. */
-static void add_argument (char *newarg)
-{
-  if (argcount+1 >= argsize) {
-    argsize = argsize ? argsize*2 : 4;
-	/*TODO if we convert to xrealloc we lose the verbose error message */
-	args = realloc(args, argsize * (sizeof(char*)));
-    if (!args) {
-		perror_msg_and_die ("failed to reallocate memory for arguments");
-	}
-  }
-  args[argcount++] = newarg;
-  args[argcount] = 0;
-}
-
-/* valid_name */
-/* True or false? Is this a valid filename (upper/lower alpha, digits,
- * underscores, and hyphens only?)
- */
-
-static int valid_name (const struct dirent *d)
-{
-	char *c = d->d_name;
-	while (*c) {
-		if (!isalnum(*c) && *c!='_' && *c!='-') {
-			return 0;
-		}
-		++c;
-	}
-	return 1;
-}
-
-
-/* run_part */
-/* Execute a file */
-
-static void run_part (char *progname)
-{
-  int result;
-  int pid;
-
-  
-  if ((pid=fork()) < 0) {
-    perror_msg_and_die ("failed to fork");
-  }
-  else if (!pid) {
-    args[0] = progname;
-    execv (progname, args);
-    perror_msg_and_die ("failed to exec %s", progname);
-  }
-
-  if (0) {
-		  
-  } else {
-		  
-		  waitpid(pid, &result, 0);
-  }
-
-  if (WIFEXITED (result) && WEXITSTATUS(result)) {
-		  perror_msg ("%s exited with return code %d", progname, WEXITSTATUS(result));
-		  exitstatus = 1;
-  }
-  else if (WIFSIGNALED (result)) {
-		  perror_msg ("%s exited because of uncaught signal %d", progname,
-						  WTERMSIG(result));
-		  exitstatus = 1;
-  }
-}
-
-/* run_parts */
-/* Find the parts to run & call run_part() */
-
-static void run_parts (char *dir_name)
-{
-  struct dirent **namelist = 0;
-  char *filename;
-  int entries, i;
-  struct stat st;
-
-  /* -- */
-  
-  /* scandir() isn't POSIX, but it makes things easy. */
-  entries = scandir (dir_name, &namelist, valid_name, alphasort);
-
-  if (entries < 0) {
-    perror_msg_and_die ("failed to open directory %s", dir_name);
-  }
-  
-  for (i = 0; i < entries; i++) {
-
-	  /* -- */
-
-	  filename = concat_path_file (dir_name, namelist[i]->d_name);
-	  
-	  if (stat (filename, &st) < 0) {
-		  perror_msg_and_die ("failed to stat component %s", filename);
-	  }
-	  if (S_ISREG(st.st_mode) && !access (filename, X_OK)) {
-		  if (test_mode)
-			  printf ("run-parts would run %s\n", filename);
-		  else {
-			  run_part (filename);
-		  }
-	  }
-
-	  else if (!S_ISDIR(st.st_mode)) {
-		  error_msg ("component %s is not an executable plain file",
-				  filename);
-		  exitstatus = 1;
-	  }
-	  
-	  free (namelist[i]);
-	  free (filename);
-  }
-  free (namelist);
-}
+#include "libbb.h"
 
 /* run_parts_main */
 /* Process options */
-int run_parts_main (int argc, char *argv[])
+int run_parts_main(int argc, char **argv)
 {
-  umask (022);
-  add_argument(0);
-  
-  for (;;) {
-    int c;
+	char **args = xmalloc(2 * sizeof(char *));
+	unsigned char test_mode = 0;
+	unsigned short argcount = 1;
+	int opt;
 
-    opterr = 0;
-    c = getopt(argc, argv, "tu:a:");
-	
-    if (c == EOF)
-      break;
-    switch (c) {
-	case 't':               /* Enable test mode */
-		test_mode = 1;
-		break;			
-	case 'u':               /* Set the umask of the programs executed */
-		set_umask ();
-		break;
-    case 'a':               /* Pass an argument to the programs */
-		add_argument (optarg);
-		break;
-    default:
+	umask(022);
+
+	while ((opt = getopt(argc, argv, "tu:a:")) != -1) {
+		switch (opt) {
+		case 't':		/* Enable test mode */
+			test_mode = 1;
+			break;
+		case 'u':		/* Set the umask of the programs executed */
+			/* Check and set the umask of the program executed. As stated in the original
+			 * run-parts, the octal conversion in libc is not foolproof; it will take the 
+			 * 8 and 9 digits under some circumstances. We'll just have to live with it.
+			 */
+			{
+				const unsigned int mask = (unsigned int) strtol(optarg, NULL, 8);
+				if (mask > 07777) {
+					perror_msg_and_die("bad umask value");
+				}
+				umask(mask);
+			}
+			break;
+		case 'a':		/* Pass an argument to the programs */
+			/* Add an argument to the commands that we will call.
+			 * Called once for every argument. */
+			args = xrealloc(args, (argcount + 2) * (sizeof(char *)));
+			args[argcount++] = optarg;
+			args[argcount] = 0;
+			break;
+		default:
+			show_usage();
+		}
+	}
+
+	/* We require exactly one argument: the directory name */
+	if (optind != (argc - 1)) {
 		show_usage();
-    }
-  }
-  
-  /* We require exactly one argument: the directory name */
-  if (optind != (argc - 1)) {
-	  show_usage();
-  }
+	}
 
-  run_parts (argv[optind]);
-
-  return exitstatus;
+	args[0] = argv[optind];
+	return(run_parts(args, test_mode));
 }

editors/Makefile.in

@@ -23,6 +23,7 @@ EDITOR_DIR:=$(TOPDIR)editors/
 endif
 
 EDITOR-y:=
+EDITOR-$(CONFIG_AWK)	   += awk.o
 EDITOR-$(CONFIG_SED)       += sed.o
 EDITOR-$(CONFIG_VI)        += vi.o
 EDITOR_SRC:= $(EDITOR-y)
@@ -30,6 +31,13 @@ EDITOR_OBJ:= $(patsubst %.c,$(EDITOR_DIR)%.o, $(EDITOR_SRC))
 
 libraries-y+=$(EDITOR_DIR)$(EDITOR_AR)
 
+needlibm-y:=
+needlibm-$(CONFIG_FEATURE_AWK_MATH) := y
+
+ifeq ($(needlibm-y),y)
+  LIBRARIES += -lm
+endif
+
 $(EDITOR_DIR)$(EDITOR_AR): $(patsubst %,$(EDITOR_DIR)%, $(EDITOR-y))
 	$(AR) -ro $@ $(patsubst %,$(EDITOR_DIR)%, $(EDITOR-y))
 

editors/config.in

@@ -6,6 +6,10 @@
 mainmenu_option next_comment
 comment 'Editors'
 
+bool 'awk'	    CONFIG_AWK
+if [ "$CONFIG_AWK" = "y" ]; then
+    bool '  Enable math functions (requires libm)'      CONFIG_FEATURE_AWK_MATH
+fi
 bool 'sed'	    CONFIG_SED
 bool 'vi'	    CONFIG_VI
 if [ "$CONFIG_VI" = "y" ]; then

include/libbb.h

@@ -324,6 +324,7 @@ void bb_asprintf(char **string_ptr, const char *format, ...) __attribute__ ((for
 #define FAIL_DELAY    3
 extern void change_identity ( const struct passwd *pw );
 extern void run_shell ( const char *shell, int loginshell, const char *command, const char **additional_args );
+extern int run_parts(char **args, const unsigned char test_mode);
 extern int restricted_shell ( const char *shell );
 extern void setup_environment ( const char *shell, int loginshell, int changeenv, const struct passwd *pw );
 extern int correct_password ( const struct passwd *pw );

libbb/Makefile.in

@@ -34,8 +34,8 @@ LIBBB_SRC:= \
 	my_getgrgid.c my_getpwnam.c my_getpwnamegid.c my_getpwuid.c \
 	parse_mode.c parse_number.c perror_msg.c perror_msg_and_die.c \
 	print_file.c process_escape_sequence.c read_package_field.c \
-	recursive_action.c safe_read.c safe_strncpy.c syscalls.c \
-	syslog_msg_with_name.c time_string.c trim.c \
+	recursive_action.c run_parts.c safe_read.c safe_strncpy.c \
+	syscalls.c syslog_msg_with_name.c time_string.c trim.c \
 	vdprintf.c verror_msg.c vperror_msg.c wfopen.c xgetcwd.c xreadlink.c \
 	xregcomp.c interface.c remove_file.c last_char_is.c copyfd.c \
 	vherror_msg.c herror_msg.c herror_msg_and_die.c xgethostbyname.c \

libbb/run_parts.c

@@ -0,0 +1,139 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini run-parts implementation for busybox
+ *
+ *
+ * Copyright (C) 2001 by Emanuele Aina <emanuele.aina@tiscali.it>
+ *
+ * Based on the Debian run-parts program, version 1.15
+ *   Copyright (C) 1996 Jeff Noxon <jeff@router.patch.net>,
+ *   Copyright (C) 1996-1999 Guy Maor <maor@debian.org>
+ *   
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307 USA
+ *
+ */
+
+/* This is my first attempt to write a program in C (well, this is my first
+ * attempt to write a program! :-) . */
+
+/* This piece of code is heavily based on the original version of run-parts,
+ * taken from debian-utils. I've only removed the long options and a the 
+ * report mode. As the original run-parts support only long options, I've
+ * broken compatibility because the BusyBox policy doesn't allow them. 
+ * The supported options are: 
+ * -t			test. Print the name of the files to be executed, without
+ * 				execute them.
+ * -a ARG		argument. Pass ARG as an argument the program executed. It can 
+ * 				be repeated to pass multiple arguments.
+ * -u MASK 		umask. Set the umask of the program executed to MASK. */
+
+/* TODO 
+ * done - convert calls to error in perror... and remove error()
+ * done - convert malloc/realloc to their x... counterparts 
+ * done - remove catch_sigchld
+ * done - use bb's concat_path_file() 
+ * done - declare run_parts_main() as extern and any other function as static?
+ */
+
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <stdlib.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <ctype.h>
+
+#include "libbb.h"
+
+/* valid_name */
+/* True or false? Is this a valid filename (upper/lower alpha, digits,
+ * underscores, and hyphens only?)
+ */
+static int valid_name(const struct dirent *d)
+{
+	char *c = d->d_name;
+
+	while (*c) {
+		if (!isalnum(*c) && (*c != '_') && (*c != '-')) {
+			return 0;
+		}
+		++c;
+	}
+	return 1;
+}
+
+/* run_parts */
+/* Find the parts to run & call run_part() */
+extern int run_parts(char **args, const unsigned char test_mode)
+{
+	struct dirent **namelist = 0;
+	struct stat st;
+	char *filename;
+	int entries;
+	int i;
+	int exitstatus = 0;
+
+	/* scandir() isn't POSIX, but it makes things easy. */
+	entries = scandir(args[0], &namelist, valid_name, alphasort);
+
+	if (entries == -1) {
+		perror_msg_and_die("failed to open directory %s", args[0]);
+	}
+
+	for (i = 0; i < entries; i++) {
+
+		filename = concat_path_file(args[0], namelist[i]->d_name);
+
+		if (stat(filename, &st) < 0) {
+			perror_msg_and_die("failed to stat component %s", filename);
+		}
+		if (S_ISREG(st.st_mode) && !access(filename, X_OK)) {
+			if (test_mode)
+				printf("run-parts would run %s\n", filename);
+			else {
+				int result;
+				int pid;
+
+				if ((pid = fork()) < 0) {
+					perror_msg_and_die("failed to fork");
+				} else if (!pid) {
+					execv(args[0], args);
+					perror_msg_and_die("failed to exec %s", args[0]);
+				}
+
+				waitpid(pid, &result, 0);
+
+				if (WIFEXITED(result) && WEXITSTATUS(result)) {
+					perror_msg("%s exited with return code %d", args[0], WEXITSTATUS(result));
+					exitstatus = 1;
+				} else if (WIFSIGNALED(result)) {
+					perror_msg("%s exited because of uncaught signal %d", args[0], WTERMSIG(result));
+					exitstatus = 1;
+				}
+			}
+		} 
+		else if (!S_ISDIR(st.st_mode)) {
+			error_msg("component %s is not an executable plain file", filename);
+			exitstatus = 1;
+		}
+
+		free(namelist[i]);
+		free(filename);
+	}
+	free(namelist);
+	
+	return(exitstatus);
+}

networking/ifupdown.c

@@ -1017,10 +1017,10 @@ static int doit(char *str)
 	return (1);
 }
 
-static int execute_all(interface_defn *ifd, execfn *exec, char *opt)
+static int execute_all(interface_defn *ifd, execfn *exec, const char *opt)
 {
 	int i;
-	char buf[100];
+//	char buf[100];
 
 	for (i = 0; i < ifd->n_options; i++) {
 		if (strcmp(ifd->option[i].name, opt) == 0) {
@@ -1030,8 +1030,9 @@ static int execute_all(interface_defn *ifd, execfn *exec, char *opt)
 		}
 	}
 
-	sprintf(buf, "run-parts /etc/network/if-%s.d", opt);
-	(*exec) (buf);
+	runparts("/etc/network/if-"opt".d");
+//	sprintf(buf, "run-parts /etc/network/if-%s.d", opt);
+//	(*exec) (buf);
 
 	return (1);
 }