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authorEric Andersen2003-07-14 20:20:45 +0000
committerEric Andersen2003-07-14 20:20:45 +0000
commit74f270a3177a43b29d98b6c5b6a2c5338be8b98f (patch)
treef07a9933508907612bc6d4af818447ff099a7c63 /loginutils/deluser.c
parente5642119ee566520a098027746808dd6b9226d99 (diff)
downloadbusybox-74f270a3177a43b29d98b6c5b6a2c5338be8b98f.zip
busybox-74f270a3177a43b29d98b6c5b6a2c5338be8b98f.tar.gz
decouple delgroup and deluser
Diffstat (limited to 'loginutils/deluser.c')
-rw-r--r--loginutils/deluser.c127
1 files changed, 8 insertions, 119 deletions
diff --git a/loginutils/deluser.c b/loginutils/deluser.c
index ad62d41..1cd2b01 100644
--- a/loginutils/deluser.c
+++ b/loginutils/deluser.c
@@ -29,113 +29,10 @@
#include "busybox.h"
+#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) {
- bb_show_usage();
- } else {
-
- failure = del_line_matching(argv[1], bb_path_group_file);
-#ifdef CONFIG_FEATURE_SHADOWPASSWDS
- if (access(bb_path_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], bb_path_gshadow_file);
- }
-#endif /* CONFIG_FEATURE_SHADOWPASSWDS */
- /* if (!successful) { */
- if (failure) {
- bb_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; */
@@ -146,34 +43,26 @@ int deluser_main(int argc, char **argv)
} else {
failure = del_line_matching(argv[1], bb_path_passwd_file);
- /* if (!successful) { */
if (failure) {
- bb_error_msg_and_die("%s: User could not be removed from %s\n",
- argv[1], bb_path_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], bb_path_shadow_file);
- /* if (!successful) { */
if (failure) {
- bb_error_msg_and_die("%s: User could not be removed from %s\n",
- argv[1], bb_path_shadow_file);
+ bb_error_msg_and_die(deluser_format, argv[1], bb_path_shadow_file);
}
failure = del_line_matching(argv[1], bb_path_gshadow_file);
- /* if (!successful) { */
if (failure) {
- bb_error_msg_and_die("%s: User could not be removed from %s\n",
- argv[1], bb_path_gshadow_file);
+ bb_error_msg_and_die(deluser_format, argv[1], bb_path_gshadow_file);
}
-#endif /* CONFIG_FEATURE_SHADOWPASSWDS */
+#endif
failure = del_line_matching(argv[1], bb_path_group_file);
- /* if (!successful) { */
if (failure) {
- bb_error_msg_and_die("%s: User could not be removed from %s\n",
- argv[1], bb_path_group_file);
+ bb_error_msg_and_die(deluser_format, argv[1], bb_path_group_file);
}
}
return (EXIT_SUCCESS);
}
-/* $Id: deluser.c,v 1.3 2003/03/19 09:12:20 mjn3 Exp $ */
+/* $Id: deluser.c,v 1.4 2003/07/14 20:20:45 andersen Exp $ */