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authorAndreas Kling <awesomekling@gmail.com>2019-07-04 16:16:50 +0200
committerAndreas Kling <awesomekling@gmail.com>2019-07-04 16:16:50 +0200
commit04b9dc2d30cfc9b383029f6a4b02e2725108b0ae (patch)
treee117a998173b767f9fd009d49c4f8573d8b85432 /LibC/pwd.cpp
parent63814ffebf16291419745cd8ba29a4d2fd888563 (diff)
downloadserenity-04b9dc2d30cfc9b383029f6a4b02e2725108b0ae.zip
Libraries: Create top level directory for libraries.
Things were getting a little crowded in the project root, so this patch moves the Lib*/ directories into Libraries/.
Diffstat (limited to 'LibC/pwd.cpp')
-rw-r--r--LibC/pwd.cpp128
1 files changed, 0 insertions, 128 deletions
diff --git a/LibC/pwd.cpp b/LibC/pwd.cpp
deleted file mode 100644
index 3303cf3d91..0000000000
--- a/LibC/pwd.cpp
+++ /dev/null
@@ -1,128 +0,0 @@
-#include <AK/AKString.h>
-#include <pwd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/mman.h>
-#include <unistd.h>
-
-extern "C" {
-
-#define PWDB_STR_MAX_LEN 256
-
-struct passwd_with_strings : public passwd {
- char name_buffer[PWDB_STR_MAX_LEN];
- char passwd_buffer[PWDB_STR_MAX_LEN];
- char gecos_buffer[PWDB_STR_MAX_LEN];
- char dir_buffer[PWDB_STR_MAX_LEN];
- char shell_buffer[PWDB_STR_MAX_LEN];
-};
-
-static FILE* __pwdb_stream = nullptr;
-static unsigned __pwdb_line_number = 0;
-static struct passwd_with_strings* __pwdb_entry = nullptr;
-
-void setpwent()
-{
- __pwdb_line_number = 0;
- if (__pwdb_stream) {
- rewind(__pwdb_stream);
- } else {
- __pwdb_stream = fopen("/etc/passwd", "r");
- if (!__pwdb_stream) {
- perror("open /etc/passwd");
- }
- assert(__pwdb_stream);
- __pwdb_entry = (struct passwd_with_strings*)mmap_with_name(nullptr, getpagesize(), PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, 0, 0, "setpwent");
- }
-}
-
-void endpwent()
-{
- __pwdb_line_number = 0;
- if (__pwdb_stream) {
- fclose(__pwdb_stream);
- __pwdb_stream = nullptr;
- }
- if (__pwdb_entry) {
- munmap(__pwdb_entry, getpagesize());
- __pwdb_entry = nullptr;
- }
-}
-
-struct passwd* getpwuid(uid_t uid)
-{
- setpwent();
- while (auto* pw = getpwent()) {
- if (pw->pw_uid == uid)
- return pw;
- }
- return nullptr;
-}
-
-struct passwd* getpwnam(const char* name)
-{
- setpwent();
- while (auto* pw = getpwent()) {
- if (!strcmp(pw->pw_name, name))
- return pw;
- }
- return nullptr;
-}
-
-struct passwd* getpwent()
-{
- if (!__pwdb_stream)
- setpwent();
-
- assert(__pwdb_stream);
- if (feof(__pwdb_stream))
- return nullptr;
-
-next_entry:
- char buffer[1024];
- ++__pwdb_line_number;
- char* s = fgets(buffer, sizeof(buffer), __pwdb_stream);
- if (!s)
- return nullptr;
- assert(__pwdb_stream);
- if (feof(__pwdb_stream))
- return nullptr;
- String line(s, Chomp);
- auto parts = line.split(':');
- if (parts.size() != 7) {
- fprintf(stderr, "getpwent(): Malformed entry on line %u\n", __pwdb_line_number);
- goto next_entry;
- }
- auto& e_name = parts[0];
- auto& e_passwd = parts[1];
- auto& e_uid_string = parts[2];
- auto& e_gid_string = parts[3];
- auto& e_gecos = parts[4];
- auto& e_dir = parts[5];
- auto& e_shell = parts[6];
- bool ok;
- uid_t e_uid = e_uid_string.to_uint(ok);
- if (!ok) {
- fprintf(stderr, "getpwent(): Malformed UID on line %u\n", __pwdb_line_number);
- goto next_entry;
- }
- gid_t e_gid = e_gid_string.to_uint(ok);
- if (!ok) {
- fprintf(stderr, "getpwent(): Malformed GID on line %u\n", __pwdb_line_number);
- goto next_entry;
- }
- __pwdb_entry->pw_uid = e_uid;
- __pwdb_entry->pw_gid = e_gid;
- __pwdb_entry->pw_name = __pwdb_entry->name_buffer;
- __pwdb_entry->pw_passwd = __pwdb_entry->passwd_buffer;
- __pwdb_entry->pw_gecos = __pwdb_entry->gecos_buffer;
- __pwdb_entry->pw_dir = __pwdb_entry->dir_buffer;
- __pwdb_entry->pw_shell = __pwdb_entry->shell_buffer;
- strncpy(__pwdb_entry->name_buffer, e_name.characters(), PWDB_STR_MAX_LEN);
- strncpy(__pwdb_entry->passwd_buffer, e_passwd.characters(), PWDB_STR_MAX_LEN);
- strncpy(__pwdb_entry->gecos_buffer, e_gecos.characters(), PWDB_STR_MAX_LEN);
- strncpy(__pwdb_entry->dir_buffer, e_dir.characters(), PWDB_STR_MAX_LEN);
- strncpy(__pwdb_entry->shell_buffer, e_shell.characters(), PWDB_STR_MAX_LEN);
- return __pwdb_entry;
-}
-}