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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2017-05-26 16:45:28 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2017-05-26 16:45:28 +0200 |
| commit | 13d72c3fd979a047179b1342dcae026379af0617 (patch) | |
| tree | 4467f3b31f7dafd596f7044bd6652618dd1f5212 /loginutils | |
| parent | f5470419404d643070db99d058405b714695b817 (diff) | |
| download | busybox-13d72c3fd979a047179b1342dcae026379af0617.tar.gz | |
add/remove-shell: copy /etc/shells mode to new file
function old new delta
add_remove_shell_main 259 300 +41
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'loginutils')
| -rw-r--r-- | loginutils/add-remove-shell.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/loginutils/add-remove-shell.c b/loginutils/add-remove-shell.c index af7c31779..922b3333d 100644 --- a/loginutils/add-remove-shell.c +++ b/loginutils/add-remove-shell.c @@ -43,10 +43,7 @@ #define REMOVE_SHELL (ENABLE_REMOVE_SHELL && (!ENABLE_ADD_SHELL || applet_name[0] == 'r')) #define ADD_SHELL (ENABLE_ADD_SHELL && (!ENABLE_REMOVE_SHELL || applet_name[0] == 'a')) -/* NB: we use the _address_, not the value, of this string - * as a "special value of pointer" in the code. - */ -static const char dont_add[] ALIGN1 = "\n"; +#define dont_add ((char*)(uintptr_t)1) int add_remove_shell_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int add_remove_shell_main(int argc UNUSED_PARAM, char **argv) @@ -54,6 +51,9 @@ int add_remove_shell_main(int argc UNUSED_PARAM, char **argv) FILE *orig_fp; char *orig_fn; char *new_fn; + struct stat sb; + + sb.st_mode = 0666; argv++; @@ -61,6 +61,8 @@ int add_remove_shell_main(int argc UNUSED_PARAM, char **argv) if (!orig_fn) return EXIT_FAILURE; orig_fp = fopen_for_read(orig_fn); + if (orig_fp) + xfstat(fileno(orig_fp), &sb, orig_fn); new_fn = xasprintf("%s.tmp", orig_fn); /* @@ -71,13 +73,9 @@ int add_remove_shell_main(int argc UNUSED_PARAM, char **argv) * after which it should revert to O_TRUNC. * For now, I settle for O_TRUNC instead. */ - xmove_fd(xopen(new_fn, O_WRONLY | O_CREAT | O_TRUNC), STDOUT_FILENO); - - /* TODO: - struct stat sb; - xfstat(fileno(orig_fp), &sb); + xmove_fd(xopen3(new_fn, O_WRONLY | O_CREAT | O_TRUNC, sb.st_mode), STDOUT_FILENO); + /* TODO? xfchown(STDOUT_FILENO, sb.st_uid, sb.st_gid); - xfchmod(STDOUT_FILENO, sb.st_mode); */ if (orig_fp) { @@ -95,7 +93,7 @@ int add_remove_shell_main(int argc UNUSED_PARAM, char **argv) } /* we are add-shell */ /* mark this name as "do not add" */ - *cpp = (char*)dont_add; + *cpp = dont_add; } cpp++; } |