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11
12struct string_list {
13 struct string_list *next;
14 char str[];
15};
16
17struct arg_list {
18 struct arg_list *next;
19 char *arg;
20};
21
22struct double_list {
23 struct double_list *next, *prev;
24 char *data;
25};
26
27struct num_cache {
28 struct num_cache *next;
29 long long num;
30 char data[];
31};
32
33struct dev_ino {
34 dev_t dev;
35 ino_t ino;
36};
37
38void llist_free_arg(void *node);
39void llist_free_double(void *node);
40void llist_traverse(void *list, void (*using)(void *node));
41void *llist_pop(void *list);
42void *dlist_pop(void *list);
43void *dlist_lpop(void *list);
44void dlist_add_nomalloc(struct double_list **list, struct double_list *new);
45struct double_list *dlist_add(struct double_list **list, char *data);
46void *dlist_terminate(void *list);
47struct num_cache *get_num_cache(struct num_cache *cache, long long num);
48struct num_cache *add_num_cache(struct num_cache **cache, long long num,
49 void *data, int len);
50
51
52#define FLAGS_NODASH (1LL<<63)
53void get_optflags(void);
54
55
56
57
58
59
60
61#define DIRTREE_SAVE 1
62
63#define DIRTREE_RECURSE 2
64
65
66#define DIRTREE_COMEAGAIN 4
67
68#define DIRTREE_SYMFOLLOW 8
69
70#define DIRTREE_SHUTUP 16
71
72#define DIRTREE_BREADTH 32
73
74#define DIRTREE_PROC 64
75
76#define DIRTREE_STATLESS 128
77
78#define DIRTREE_ABORT 256
79
80#define DIRTREE_ABORTVAL ((struct dirtree *)1)
81
82struct dirtree {
83 struct dirtree *next, *parent, *child;
84 long extra;
85 char *symlink;
86 int dirfd;
87 struct stat st;
88 char again, name[];
89};
90
91int isdotdot(char *name);
92struct dirtree *dirtree_add_node(struct dirtree *p, char *name, int flags);
93char *dirtree_path(struct dirtree *node, int *plen);
94int dirtree_notdotdot(struct dirtree *catch);
95int dirtree_parentfd(struct dirtree *node);
96int dirtree_recurse(struct dirtree *node, int (*callback)(struct dirtree *node),
97 int dirfd, int symfollow);
98struct dirtree *dirtree_flagread(char *path, int flags,
99 int (*callback)(struct dirtree *node));
100struct dirtree *dirtree_read(char *path, int (*callback)(struct dirtree *node));
101
102
103
104
105#define WARN_ONLY (1<<31)
106#define LOOPFILES_ANYWAY (1<<30)
107
108
109#define ABS_PATH 1
110#define ABS_FILE 2
111#define ABS_KEEP 4
112#define ABS_LAST 8
113
114
115void xstrncpy(char *dest, char *src, size_t size);
116void xstrncat(char *dest, char *src, size_t size);
117_Noreturn void _xexit(void);
118_Noreturn void xexit(void);
119void *xmmap(void *addr, size_t length, int prot, int flags, int fd, off_t off);
120void *xmalloc(size_t size);
121void *xzalloc(size_t size);
122void *xrealloc(void *ptr, size_t size);
123char *xstrndup(char *s, size_t n);
124char *xstrdup(char *s);
125void *xmemdup(void *s, long len);
126char *xmprintf(char *format, ...) printf_format;
127void xflush(int flush);
128void xprintf(char *format, ...) printf_format;
129void xputsl(char *s, int len);
130void xputsn(char *s);
131void xputs(char *s);
132void xputc(char c);
133void xvdaemon(void);
134void xexec(char **argv);
135pid_t xpopen_setup(char **argv, int *pipes, void (*callback)(char **argv));
136pid_t xpopen_both(char **argv, int *pipes);
137int xwaitpid(pid_t pid);
138int xpclose_both(pid_t pid, int *pipes);
139pid_t xpopen(char **argv, int *pipe, int isstdout);
140pid_t xpclose(pid_t pid, int pipe);
141int xrun(char **argv);
142char *xrunread(char *argv[], char *stdin);
143int xpspawn(char **argv, int*pipes);
144void xaccess(char *path, int flags);
145void xunlink(char *path);
146void xrename(char *from, char *to);
147int xtempfile(char *name, char **tempname);
148int xcreate(char *path, int flags, int mode);
149int xopen(char *path, int flags);
150int xcreate_stdio(char *path, int flags, int mode);
151int xopen_stdio(char *path, int flags);
152int openro(char *path, int flags);
153int xopenro(char *path);
154void xpipe(int *pp);
155void xclose(int fd);
156int xdup(int fd);
157int notstdio(int fd);
158FILE *xfdopen(int fd, char *mode);
159FILE *xfopen(char *path, char *mode);
160size_t xread(int fd, void *buf, size_t len);
161void xreadall(int fd, void *buf, size_t len);
162void xwrite(int fd, void *buf, size_t len);
163off_t xlseek(int fd, off_t offset, int whence);
164char *xreadfile(char *name, char *buf, off_t len);
165int xioctl(int fd, int request, void *data);
166char *xgetcwd(void);
167void xstat(char *path, struct stat *st);
168char *xabspath(char *path, int exact);
169void xchdir(char *path);
170void xchroot(char *path);
171struct passwd *xgetpwuid(uid_t uid);
172struct group *xgetgrgid(gid_t gid);
173struct passwd *xgetpwnam(char *name);
174struct group *xgetgrnam(char *name);
175unsigned xgetuid(char *name);
176unsigned xgetgid(char *name);
177void xsetuser(struct passwd *pwd);
178char *xreadlinkat(int dir, char *name);
179char *xreadlink(char *name);
180double xstrtod(char *s);
181long xparsetime(char *arg, long units, long *fraction);
182void xparsetimespec(char *arg, struct timespec *ts);
183long long xparsemillitime(char *arg);
184void xpidfile(char *name);
185void xregcomp(regex_t *preg, char *rexec, int cflags);
186char *xtzset(char *new);
187void xsignal_flags(int signal, void *handler, int flags);
188void xsignal(int signal, void *handler);
189time_t xvali_date(struct tm *tm, char *str);
190void xparsedate(char *str, time_t *t, unsigned *nano, int endian);
191char *xgetline(FILE *fp);
192time_t xmktime(struct tm *tm, int utc);
193
194
195void verror_msg(char *msg, int err, va_list va);
196void error_msg(char *msg, ...) printf_format;
197void perror_msg(char *msg, ...) printf_format;
198_Noreturn void error_exit(char *msg, ...) printf_format;
199_Noreturn void perror_exit(char *msg, ...) printf_format;
200_Noreturn void help_exit(char *msg, ...) printf_format;
201void error_msg_raw(char *msg);
202void perror_msg_raw(char *msg);
203_Noreturn void error_exit_raw(char *msg);
204_Noreturn void perror_exit_raw(char *msg);
205ssize_t readall(int fd, void *buf, size_t len);
206ssize_t writeall(int fd, void *buf, size_t len);
207off_t lskip(int fd, off_t offset);
208#define MKPATHAT_MKLAST 1
209#define MKPATHAT_MAKE 2
210#define MKPATHAT_VERBOSE 4
211int mkpathat(int atfd, char *dir, mode_t lastmode, int flags);
212int mkpath(char *dir);
213struct string_list **splitpath(char *path, struct string_list **list);
214char *readfd(int fd, char *ibuf, off_t *plen);
215char *readfileat(int dirfd, char *name, char *buf, off_t *len);
216char *readfile(char *name, char *buf, off_t len);
217void msleep(long milliseconds);
218void nanomove(struct timespec *ts, long long offset);
219long long nanodiff(struct timespec *old, struct timespec *new);
220int highest_bit(unsigned long l);
221int64_t peek_le(void *ptr, unsigned size);
222int64_t peek_be(void *ptr, unsigned size);
223int64_t peek(void *ptr, unsigned size);
224void poke_le(void *ptr, long long val, unsigned size);
225void poke_be(void *ptr, long long val, unsigned size);
226void poke(void *ptr, long long val, unsigned size);
227struct string_list *find_in_path(char *path, char *filename);
228long long estrtol(char *str, char **end, int base);
229long long xstrtol(char *str, char **end, int base);
230long long atolx(char *c);
231long long atolx_range(char *numstr, long long low, long long high);
232int stridx(char *haystack, char needle);
233int wctoutf8(char *s, unsigned wc);
234int utf8towc(unsigned *wc, char *str, unsigned len);
235char *strlower(char *s);
236char *strafter(char *haystack, char *needle);
237char *chomp(char *s);
238int unescape(char c);
239int unescape2(char **c, int echo);
240char *strend(char *str, char *suffix);
241int strstart(char **a, char *b);
242int strcasestart(char **a, char *b);
243int same_file(struct stat *st1, struct stat *st2);
244int same_dev_ino(struct stat *st, struct dev_ino *di);
245off_t fdlength(int fd);
246void loopfiles_rw(char **argv, int flags, int permissions,
247 void (*function)(int fd, char *name));
248void loopfiles(char **argv, void (*function)(int fd, char *name));
249void loopfiles_lines(char **argv, void (*function)(char **pline, long len));
250long long sendfile_len(int in, int out, long long len, long long *consumed);
251long long xsendfile_len(int in, int out, long long len);
252void xsendfile_pad(int in, int out, long long len);
253long long xsendfile(int in, int out);
254int wfchmodat(int rc, char *name, mode_t mode);
255int copy_tempfile(int fdin, char *name, char **tempname);
256void delete_tempfile(int fdin, int fdout, char **tempname);
257void replace_tempfile(int fdin, int fdout, char **tempname);
258void crc_init(unsigned *crc_table, int little_endian);
259void base64_init(char *p);
260int yesno(int def);
261int fyesno(FILE *fp, int def);
262int qstrcmp(const void *a, const void *b);
263void create_uuid(char *uuid);
264char *show_uuid(char *uuid);
265char *next_printf(char *s, char **start);
266struct passwd *bufgetpwnamuid(char *name, uid_t uid);
267struct passwd *bufgetpwuid(uid_t uid);
268struct group *bufgetgrnamgid(char *name, gid_t gid);
269struct group *bufgetgrgid(gid_t gid);
270int readlinkat0(int dirfd, char *path, char *buf, int len);
271int readlink0(char *path, char *buf, int len);
272int regexec0(regex_t *preg, char *string, long len, int nmatch,
273 regmatch_t pmatch[], int eflags);
274char *getusername(uid_t uid);
275char *getgroupname(gid_t gid);
276void do_lines(int fd, char delim, void (*call)(char **pline, long len));
277long long millitime(void);
278char *format_iso_time(char *buf, size_t len, struct timespec *ts);
279void loggit(int priority, char *format, ...);
280unsigned tar_cksum(void *data);
281int is_tar_header(void *pkt);
282char *elf_arch_name(int type);
283
284#define HR_SPACE 1
285#define HR_B 2
286#define HR_1000 4
287#define HR_NODOT 8
288int human_readable_long(char *buf, unsigned long long num, int dgt, int unit,
289 int style);
290int human_readable(char *buf, unsigned long long num, int style);
291
292
293
294long environ_bytes(void);
295char *xsetenv(char *name, char *val);
296void xunsetenv(char *name);
297char *xpop_env(char *name);
298void xclearenv(void);
299void reset_env(struct passwd *p, int clear);
300
301
302
303int crunch_escape(FILE *out, int cols, int wc);
304int crunch_rev_escape(FILE *out, int cols, int wc);
305int crunch_str(char **str, int width, FILE *out, char *escmore,
306 int (*escout)(FILE *out, int cols, int wc));
307int draw_str(char *start, int width);
308int utf8len(char *str);
309int utf8skip(char *str, int width);
310int draw_trim_esc(char *str, int padto, int width, char *escmore,
311 int (*escout)(FILE *out, int cols,int wc));
312int draw_trim(char *str, int padto, int width);
313
314
315int tty_fd(void);
316int terminal_size(unsigned *xx, unsigned *yy);
317int terminal_probesize(unsigned *xx, unsigned *yy);
318#define KEY_UP 0
319#define KEY_DOWN 1
320#define KEY_RIGHT 2
321#define KEY_LEFT 3
322#define KEY_PGUP 4
323#define KEY_PGDN 5
324#define KEY_HOME 6
325#define KEY_END 7
326#define KEY_INSERT 8
327#define KEY_DELETE 9
328#define KEY_FN 10
329#define KEY_SHIFT (1<<16)
330#define KEY_CTRL (1<<17)
331#define KEY_ALT (1<<18)
332int scan_key(char *scratch, int timeout_ms);
333int scan_key_getsize(char *scratch, int timeout_ms, unsigned *xx, unsigned *yy);
334void xsetspeed(struct termios *tio, int speed);
335int set_terminal(int fd, int raw, int speed, struct termios *old);
336void xset_terminal(int fd, int raw, int speed, struct termios *old);
337void tty_reset(void);
338void tty_sigreset(int i);
339void start_redraw(unsigned *width, unsigned *height);
340
341
342
343union socksaddr {
344 struct sockaddr s;
345 struct sockaddr_in in;
346 struct sockaddr_in6 in6;
347};
348
349int xsocket(int domain, int type, int protocol);
350void xsetsockopt(int fd, int level, int opt, void *val, socklen_t len);
351struct addrinfo *xgetaddrinfo(char *host, char *port, int family, int socktype,
352 int protocol, int flags);
353void xbind(int fd, const struct sockaddr *sa, socklen_t len);
354void xconnect(int fd, const struct sockaddr *sa, socklen_t len);
355int xconnectany(struct addrinfo *ai);
356int xbindany(struct addrinfo *ai);
357int xpoll(struct pollfd *fds, int nfds, int timeout);
358int pollinate(int in1, int in2, int out1, int out2, int timeout, int shutdown_timeout);
359char *ntop(struct sockaddr *sa);
360void xsendto(int sockfd, void *buf, size_t len, struct sockaddr *dest);
361int xrecvwait(int fd, char *buf, int len, union socksaddr *sa, int timeout);
362char *escape_url(char *str, char *and);
363void unescape_url(char *str);
364
365
366int get_salt(char *salt, char * algo);
367
368
369void comma_args(struct arg_list *al, void *data, char *err,
370 char *(*callback)(void *data, char *str, int len));
371void comma_collate(char **old, char *new);
372char *comma_iterate(char **list, int *len);
373int comma_scan(char *optlist, char *opt, int clean);
374int comma_scanall(char *optlist, char *scanlist);
375int comma_remove(char *optlist, char *opt);
376
377
378
379long long gzip_fd(int infd, int outfd);
380long long gunzip_fd(int infd, int outfd);
381long long gunzip_fd_preload(int infd, int outfd, char *buf, unsigned len);
382
383
384
385struct mtab_list {
386 struct mtab_list *next, *prev;
387 struct stat stat;
388 struct statvfs statvfs;
389 char *dir;
390 char *device;
391 char *opts;
392 char type[0];
393};
394
395int mountlist_istype(struct mtab_list *ml, char *typelist);
396struct mtab_list *xgetmountlist(char *path);
397
398
399
400void generic_signal(int signal);
401void exit_signal(int signal);
402void sigatexit(void *handler);
403void list_signals(void);
404
405mode_t string_to_mode(char *mode_str, mode_t base);
406void mode_to_string(mode_t mode, char *buf);
407char *getbasename(char *name);
408char *fileunderdir(char *file, char *dir);
409char *relative_path(char *from, char *to);
410void names_to_pid(char **names, int (*callback)(pid_t pid, char *name),
411 int scripts);
412
413pid_t __attribute__((returns_twice)) xvforkwrap(pid_t pid);
414#define XVFORK() xvforkwrap(vfork())
415
416
417
418#define WOULD_EXIT(y, x) do { sigjmp_buf _noexit; \
419 int _noexit_res; \
420 toys.rebound = &_noexit; \
421 _noexit_res = sigsetjmp(_noexit, 1); \
422 if (!_noexit_res) do {x;} while(0); \
423 toys.rebound = 0; \
424 y = _noexit_res; \
425} while(0)
426
427
428#define NOEXIT(x) WOULD_EXIT(_noexit_res, x)
429
430#define minof(a, b) ({typeof(a) aa = (a); typeof(b) bb = (b); aa<bb ? aa : bb;})
431#define maxof(a, b) ({typeof(a) aa = (a); typeof(b) bb = (b); aa>bb ? aa : bb;})
432
433
434#include "lib/pending.h"
435