Steven Scholz writes:

[oweals/busybox.git] / loginutils / deluser.c

diff --git a/loginutils/deluser.c b/loginutils/deluser.c
index 481a716e75ae8d43e9e30b058399b4fd905c41c4..1cd2b01e38765870f03e10be49cc9f3a132fc571 100644 (file)
--- a/loginutils/deluser.c
+++ b/loginutils/deluser.c
@@ -28,156 +28,41 @@
 #include <string.h>
 #include "busybox.h"
 
-#define PASSWD_FILE     "/etc/passwd"
-#define GROUP_FILE      "/etc/group"
-#define SHADOW_FILE            "/etc/shadow"
-#define GSHADOW_FILE   "/etc/gshadow"
 
+#include "delline.c"
 
-/* where to start and stop deletion */
-typedef struct {
-       size_t start;
-       size_t stop;
-} Bounds;
+static const char deluser_format[]="%s: User could not be removed from %s";
 
-/* An interesting side-effect of boundary()'s
- * implementation is that the first user (typically root)
- * cannot be removed.  Let's call it a feature. */
-static inline Bounds boundary(const char *buffer, const char *login)
-{
-       char needle[256];
-       char *start;
-       char *stop;
-       Bounds b;
-
-       snprintf(needle, 256, "\n%s:", login);
-       needle[255] = 0;
-       start = strstr(buffer, needle);
-       if (!start) {
-               b.start = 0;
-               b.stop = 0;
-               return b;
-       }
-       start++;
-
-       stop = index(start, '\n');      /* index is a BSD-ism */
-       b.start = start - buffer;
-       b.stop = stop - buffer;
-       return b;
-}
-
-/* grep -v ^login (except it only deletes the first match) */
-/* ...in fact, I think I'm going to simplify this later */
-static int del_line_matching(const char *login, const char *filename)
-{
-       char *buffer;
-       FILE *passwd;
-       size_t len;
-       Bounds b;
-       struct stat statbuf;
-
-       /* load into buffer */
-       passwd = fopen(filename, "r");
-       if (!passwd) {
-               return 1;
-       }
-       stat(filename, &statbuf);
-       len = statbuf.st_size;
-       buffer = (char *) malloc(len * sizeof(char));
-
-       if (!buffer) {
-               fclose(passwd);
-               return 1;
-       }
-       fread(buffer, len, sizeof(char), passwd);
-
-       fclose(passwd);
-
-       /* find the user to remove */
-       b = boundary(buffer, login);
-       if (b.stop == 0) {
-               free(buffer);
-               return 1;
-       }
-
-       /* write the file w/o the user */
-       passwd = fopen(filename, "w");
-       if (!passwd) {
-               return 1;
-       }
-       fwrite(buffer, (b.start - 1), sizeof(char), passwd);
-       fwrite(&buffer[b.stop], (len - b.stop), sizeof(char), passwd);
-
-       fclose(passwd);
-
-       return 0;
-}
-
-/* ________________________________________________________________________ */
-int delgroup_main(int argc, char **argv)
-{
-       /* int successful; */
-       int failure;
-
-       if (argc != 2) {
-               show_usage();
-       } else {
-
-               failure = del_line_matching(argv[1], GROUP_FILE);
-#ifdef CONFIG_FEATURE_SHADOWPASSWDS
-               if (access(GSHADOW_FILE, W_OK) == 0) {
-                       /* EDR the |= works if the error is not 0, so he had it wrong */
-                       failure |= del_line_matching(argv[1], GSHADOW_FILE);
-               }
-#endif                                                 /* CONFIG_FEATURE_SHADOWPASSWDS */
-               /* if (!successful) { */
-               if (failure) {
-                       error_msg_and_die("%s: Group could not be removed\n", argv[1]);
-               }
-
-       }
-       return (EXIT_SUCCESS);
-}
-
-/* ________________________________________________________________________ */
 int deluser_main(int argc, char **argv)
 {
        /* int successful; */
        int failure;
 
        if (argc != 2) {
-               show_usage();
+               bb_show_usage();
        } else {
 
-               failure = del_line_matching(argv[1], PASSWD_FILE);
-               /* if (!successful) { */
+               failure = del_line_matching(argv[1], bb_path_passwd_file);
                if (failure) {
-                       error_msg_and_die("%s: User could not be removed from %s\n",
-                                                         argv[1], PASSWD_FILE);
+                       bb_error_msg_and_die(deluser_format, argv[1], bb_path_passwd_file);
                }
 #ifdef CONFIG_FEATURE_SHADOWPASSWDS
-               failure = del_line_matching(argv[1], SHADOW_FILE);
-               /* if (!successful) { */
+               failure = del_line_matching(argv[1], bb_path_shadow_file);
                if (failure) {
-                       error_msg_and_die("%s: User could not be removed from %s\n",
-                                                         argv[1], SHADOW_FILE);
+                       bb_error_msg_and_die(deluser_format, argv[1], bb_path_shadow_file);
                }
-               failure = del_line_matching(argv[1], GSHADOW_FILE);
-               /* if (!successful) { */
+               failure = del_line_matching(argv[1], bb_path_gshadow_file);
                if (failure) {
-                       error_msg_and_die("%s: User could not be removed from %s\n",
-                                                         argv[1], GSHADOW_FILE);
+                       bb_error_msg_and_die(deluser_format, argv[1], bb_path_gshadow_file);
                }
-#endif                                                 /* CONFIG_FEATURE_SHADOWPASSWDS */
-               failure = del_line_matching(argv[1], GROUP_FILE);
-               /* if (!successful) { */
+#endif
+               failure = del_line_matching(argv[1], bb_path_group_file);
                if (failure) {
-                       error_msg_and_die("%s: User could not be removed from %s\n",
-                                                         argv[1], GROUP_FILE);
+                       bb_error_msg_and_die(deluser_format, argv[1], bb_path_group_file);
                }
 
        }
        return (EXIT_SUCCESS);
 }
 
-/* $Id: deluser.c,v 1.1 2002/06/04 20:45:05 sandman Exp $ */
+/* $Id: deluser.c,v 1.4 2003/07/14 20:20:45 andersen Exp $ */