#endif
};
-static int print_common(unsigned id,
- char* FAST_FUNC bb_getXXXid(char *name, int bufsize, long uid),
- const char *prefix)
+static int print_common(unsigned id, const char *name, const char *prefix)
{
- const char *name = bb_getXXXid(NULL, 0, id);
-
if (prefix) {
printf("%s", prefix);
}
static int print_group(gid_t id, const char *prefix)
{
- return print_common(id, bb_getgrgid, prefix);
+ return print_common(id, gid2group(id), prefix);
}
static int print_user(uid_t id, const char *prefix)
{
- return print_common(id, bb_getpwuid, prefix);
+ return print_common(id, uid2uname(id), prefix);
}
/* On error set *n < 0 and return >= 0
bb_show_usage();
/* Will complain and die if username not found */
- puts(bb_getpwuid(NULL, -1, geteuid()));
+ puts(xuid2uname(geteuid()));
return fflush(stdout);
}
void xget_uidgid(struct bb_uidgid_t*, const char*) FAST_FUNC;
/* chown-like handling of "user[:[group]" */
void parse_chown_usergroup_or_die(struct bb_uidgid_t *u, char *user_group) FAST_FUNC;
-/* bb_getpwuid, bb_getgrgid:
- * bb_getXXXid(buf, bufsz, id) - copy user/group name or id
- * as a string to buf, return user/group name or NULL
- * bb_getXXXid(NULL, 0, id) - return user/group name or NULL
- * bb_getXXXid(NULL, -1, id) - return user/group name or exit
-*/
-char *bb_getpwuid(char *name, int bufsize, long uid) FAST_FUNC;
-char *bb_getgrgid(char *group, int bufsize, long gid) FAST_FUNC;
+struct passwd* xgetpwuid(uid_t uid) FAST_FUNC;
+struct group* xgetgrgid(gid_t gid) FAST_FUNC;
+char* xuid2uname(uid_t uid) FAST_FUNC;
+char* xgid2group(gid_t gid) FAST_FUNC;
+char* uid2uname(uid_t uid) FAST_FUNC;
+char* gid2group(gid_t gid) FAST_FUNC;
+char* uid2uname_utoa(long uid) FAST_FUNC;
+char* gid2group_utoa(long gid) FAST_FUNC;
/* versions which cache results (useful for ps, ls etc) */
const char* get_cached_username(uid_t uid) FAST_FUNC;
const char* get_cached_groupname(gid_t gid) FAST_FUNC;
* password utility routines.
*
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
+ * Copyright (C) 2008 by Tito Ragusa <farmatito@tiscali.it>
*
* Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
*/
#include "libbb.h"
-#define assert(x) ((void)0)
-
-/* internal function for bb_getpwuid and bb_getgrgid */
-/* Hacked by Tito Ragusa (c) 2004 <farmatito@tiscali.it> to make it more
- * flexible:
- *
- * bufsize > 0: If idname is not NULL it is copied to buffer,
- * and buffer is returned. Else id as string is written
- * to buffer, and NULL is returned.
- *
- * bufsize == 0: idname is returned.
- *
- * bufsize < 0: If idname is not NULL it is returned.
- * Else an error message is printed and the program exits.
+/* TODO: maybe change API to return malloced data?
+ * This will allow to stop using libc functions returning
+ * pointers to static data (getpwuid)
*/
-static char* bb_getug(char *buffer, int bufsize, char *idname, long id, char prefix)
+
+/* TODO: add xgetpwnam, this construct is used a lot */
+
+struct passwd* FAST_FUNC xgetpwuid(uid_t uid)
{
- if (bufsize > 0) {
- assert(buffer != NULL);
- if (idname) {
- return safe_strncpy(buffer, idname, bufsize);
- }
- snprintf(buffer, bufsize, "%ld", id);
- } else if (bufsize < 0 && !idname) {
- bb_error_msg_and_die("unknown %cid %ld", prefix, id);
- }
- return idname;
+ struct passwd *pw = getpwuid(uid);
+ if (!pw)
+ bb_error_msg_and_die("unknown uid %u", (unsigned)uid);
+ return pw;
}
-/* bb_getpwuid, bb_getgrgid:
- * bb_getXXXid(buf, bufsz, id) - copy user/group name or id
- * as a string to buf, return user/group name or NULL
- * bb_getXXXid(NULL, 0, id) - return user/group name or NULL
- * bb_getXXXid(NULL, -1, id) - return user/group name or exit
- */
-/* gets a username given a uid */
-char* FAST_FUNC bb_getpwuid(char *name, int bufsize, long uid)
+struct group* FAST_FUNC xgetgrgid(gid_t gid)
{
- struct passwd *myuser = getpwuid(uid);
+ struct group *gr = getgrgid(gid);
+ if (!gr)
+ bb_error_msg_and_die("unknown gid %u", (unsigned)gid);
+ return gr;
+}
- return bb_getug(name, bufsize,
- (myuser ? myuser->pw_name : (char*)myuser),
- uid, 'u');
+char* FAST_FUNC xuid2uname(uid_t uid)
+{
+ struct passwd *pw = xgetpwuid(uid);
+ return pw->pw_name;
}
-/* gets a groupname given a gid */
-char* FAST_FUNC bb_getgrgid(char *group, int bufsize, long gid)
+
+char* FAST_FUNC xgid2group(gid_t gid)
{
- struct group *mygroup = getgrgid(gid);
+ struct group *gr = xgetgrgid(gid);
+ return gr->gr_name;
+}
- return bb_getug(group, bufsize,
- (mygroup ? mygroup->gr_name : (char*)mygroup),
- gid, 'g');
+char* FAST_FUNC uid2uname(uid_t uid)
+{
+ struct passwd *pw = getpwuid(uid);
+ return (pw) ? pw->pw_name : NULL;
}
-/* returns a gid given a group name */
-long FAST_FUNC xgroup2gid(const char *name)
+char* FAST_FUNC gid2group(gid_t gid)
{
- struct group *mygroup;
+ struct group *gr = getgrgid(gid);
+ return (gr) ? gr->gr_name : NULL;
+}
- mygroup = getgrnam(name);
- if (mygroup == NULL)
- bb_error_msg_and_die("unknown group name: %s", name);
+char* FAST_FUNC uid2uname_utoa(long uid)
+{
+ char *name = uid2uname(uid);
+ return (name) ? name : utoa(uid);
+}
- return mygroup->gr_gid;
+char* FAST_FUNC gid2group_utoa(long gid)
+{
+ char *name = gid2group(gid);
+ return (name) ? name : utoa(gid);
}
-/* returns a uid given a username */
long FAST_FUNC xuname2uid(const char *name)
{
struct passwd *myuser;
return myuser->pw_uid;
}
+long FAST_FUNC xgroup2gid(const char *name)
+{
+ struct group *mygroup;
+
+ mygroup = getgrnam(name);
+ if (mygroup == NULL)
+ bb_error_msg_and_die("unknown group %s", name);
+
+ return mygroup->gr_gid;
+}
+
unsigned long FAST_FUNC get_ug_id(const char *s,
long FAST_FUNC (*xname2id)(const char *))
{
typedef struct unsigned_to_name_map_t {
- unsigned id;
+ long id;
char name[USERNAME_MAX_SIZE];
} unsigned_to_name_map_t;
}
#endif
-typedef char* FAST_FUNC ug_func(char *name, int bufsize, long uid);
-static char* get_cached(cache_t *cp, unsigned id, ug_func* fp)
+static char* get_cached(cache_t *cp, long id,
+ char* FAST_FUNC x2x_utoa(long id))
{
int i;
for (i = 0; i < cp->size; i++)
cp->cache = xrealloc_vector(cp->cache, 2, i);
cp->cache[i].id = id;
/* Never fails. Generates numeric string if name isn't found */
- fp(cp->cache[i].name, sizeof(cp->cache[i].name), id);
+ safe_strncpy(cp->cache[i].name, x2x_utoa(id), sizeof(cp->cache[i].name));
return cp->cache[i].name;
}
const char* FAST_FUNC get_cached_username(uid_t uid)
{
- return get_cached(&username, uid, bb_getpwuid);
+ return get_cached(&username, uid, uid2uname_utoa);
}
const char* FAST_FUNC get_cached_groupname(gid_t gid)
{
- return get_cached(&groupname, gid, bb_getgrgid);
+ return get_cached(&groupname, gid, gid2group_utoa);
}
bb_show_usage();
/* Will complain and die if username not found */
- myname = xstrdup(bb_getpwuid(NULL, -1, myuid));
+ myname = xstrdup(xuid2uname(myuid));
name = argv[0] ? argv[0] : myname;
pw = getpwnam(name);
struct termios term;
struct termios oterm;
struct vt_mode ovtm;
- uid_t uid;
struct passwd *pw;
-/* XXX: xgetpwuid */
- uid = getuid();
- pw = getpwuid(uid);
- if (pw == NULL)
- bb_error_msg_and_die("unknown uid %d", (int)uid);
+ pw = xgetpwuid(getuid());
opt_complementary = "=0"; /* no params! */
getopt32(argv, "a");
// got no sender address? -> use system username as a resort
if (!(opts & OPT_f)) {
// N.B. IMHO getenv("USER") can be way easily spoofed!
- G.user = bb_getpwuid(NULL, -1, getuid());
+ G.user = xuid2uname(getuid());
opt_from = xasprintf("%s@%s", G.user, domain);
}
if (ENABLE_FEATURE_CLEAN_UP)
if (!pas)
bb_error_msg_and_die("user %s is not known", user_name);
} else {
-/* XXX: xgetpwuid */
- uid_t my_uid = getuid();
- pas = getpwuid(my_uid);
- if (!pas)
- bb_perror_msg_and_die("unknown uid %d", (int)my_uid);
+ pas = xgetpwuid(getuid());
}
#define user_name DONT_USE_ME_BEYOND_THIS_POINT
const char *server = "localhost"; // server[:port] of printer queue
char *hostname;
// N.B. IMHO getenv("USER") can be way easily spoofed!
- const char *user = bb_getpwuid(NULL, -1, getuid());
+ const char *user = xuid2uname(getuid());
unsigned job;
unsigned opts;
int fd;
int logger_main(int argc, char **argv)
{
char *str_p, *str_t;
+ int opt;
int i = 0;
- char name[80];
/* Fill out the name string early (may be overwritten later) */
- bb_getpwuid(name, sizeof(name), geteuid());
- str_t = name;
+ str_t = uid2uname_utoa(geteuid());
/* Parse any options */
- getopt32(argv, "p:st:", &str_p, &str_t);
+ opt = getopt32(argv, "p:st:", &str_p, &str_t);
- if (option_mask32 & 0x2) /* -s */
+ if (opt & 0x2) /* -s */
i |= LOG_PERROR;
- //if (option_mask32 & 0x4) /* -t */
+ //if (opt & 0x4) /* -t */
openlog(str_t, i, 0);
i = LOG_USER | LOG_NOTICE;
- if (option_mask32 & 0x1) /* -p */
+ if (opt & 0x1) /* -p */
i = pencode(str_p);
argc -= optind;
projects / oweals / busybox.git / commitdiff