1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
/* ISC license. */
#ifndef DJBUNIX_H
#define DJBUNIX_H
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <unistd.h>
#include <skalibs/gccattributes.h>
#include <skalibs/uint64.h>
#include <skalibs/stralloc.h>
#include <skalibs/envalloc.h>
#include <skalibs/env.h> /* compatibility */
#define DJBUNIX_FLAG_NB 0x01U
#define DJBUNIX_FLAG_COE 0x02U
extern int coe (int) ;
extern int uncoe (int) ;
extern int ndelay_on (int) ;
extern int ndelay_off (int) ;
extern int pipe_internal (int *, unsigned int) ;
#define pipenb(p) pipe_internal(p, DJBUNIX_FLAG_NB)
#define pipecoe(p) pipe_internal(p, DJBUNIX_FLAG_COE)
#define pipenbcoe(p) pipe_internal(p, DJBUNIX_FLAG_NB|DJBUNIX_FLAG_COE)
extern int fd_copy (int, int) ;
extern int fd_copy2 (int, int, int, int) ;
extern int fd_move (int, int) ;
extern int fd_move2 (int, int, int, int) ;
extern int fd_close (int) ;
extern int fd_chmod (int, unsigned int) ;
extern int fd_chown (int, unsigned int, unsigned int) ;
extern int fd_sync (int) ;
extern int fd_cat (int, int) ;
extern unsigned int fd_catn (int, int, unsigned int) ;
extern int fd_ensure_open (int, int) ;
#define fd_sanitize() (fd_ensure_open(0, 0) && fd_ensure_open(1, 1) && fd_ensure_open(2, 2))
extern int lock_ex (int) ;
extern int lock_exnb (int) ;
extern int lock_sh (int) ;
extern int lock_shnb (int) ;
extern int lock_un (int) ;
extern int open2 (char const *, unsigned int) ;
extern int open3 (char const *, unsigned int, unsigned int) ;
extern int open_read (char const *) ;
extern int open_readb (char const *) ;
extern int open_excl (char const *) ;
extern int open_append (char const *) ;
extern int open_create (char const *) ;
extern int open_trunc (char const *) ;
extern int open_write (char const *) ;
extern int socket_internal (int, int, int, unsigned int) ;
extern int socketpair_internal (int, int, int, unsigned int, int *) ;
extern int pathexec_env (char const *, char const *) ;
extern void pathexec_r (char const *const *, char const *const *, unsigned int, char const *, unsigned int) ;
extern void pathexec_r_name (char const *, char const *const *, char const *const *, unsigned int, char const *, unsigned int) ;
extern void pathexec_fromenv (char const *const *, char const *const *, unsigned int) ;
extern void execvep (char const *, char const *const *, char const *const *, char const *) ;
extern void pathexec_run (char const *, char const *const *, char const *const *) ;
extern void pathexec0_run (char const *const *, char const *const *) ;
extern void pathexec (char const *const *) ;
extern void pathexec0 (char const *const *) ;
#define prot_gid(gid) setgid(gid)
#define prot_uid(uid) setuid(uid)
extern int prot_readgroups (char const *, gid_t *, unsigned int) ;
extern int prot_grps (char const *) ;
extern int prot_setuidgid (char const *) ;
extern long seek_cur (int) ;
extern int seek_set (int, long) ;
extern int seek_end (int) ;
extern int seek_trunc (int, long) ;
#define seek_begin(fd) (seek_set((fd), 0))
extern pid_t wait_nointr (int *) ;
extern pid_t waitpid_nointr (pid_t, int *, int) ;
#define wait_pid(pid, wstat) waitpid_nointr(pid, (wstat), 0)
#define wait_nohang(wstat) waitpid_nointr(-1, (wstat), WNOHANG)
extern pid_t wait_pid_nohang (pid_t, int *) ;
extern int wait_pids_nohang (pid_t const *, unsigned int, int *) ;
#define wait_status(w) (WIFSIGNALED(w) ? 126 : WEXITSTATUS(w))
extern unsigned int wait_reap (void) ;
extern int waitn (pid_t *, unsigned int) ;
extern int waitn_reap (pid_t *, unsigned int) ;
extern pid_t doublefork (void) ;
extern int fd_chdir (int) ;
#define absolutepath(sa, s) sarealpath(sa, s)
/* extern char *realpath (char const *, char *) ; */
extern char *realpath_tmp (char const *, char *, stralloc *) ;
extern int sarealpath (stralloc *, char const *) ;
extern int sarealpath_tmp (stralloc *, char const *, stralloc *) ;
/* extern char *basename (char *) ; */
extern int sabasename (stralloc *, char const *, unsigned int) ;
/* extern char *dirname (char *) ; */
extern int sadirname (stralloc *, char const *, unsigned int) ;
extern int sagetcwd (stralloc *) ;
extern int sareadlink (stralloc *, char const *) ;
extern int sagethostname (stralloc *) ;
extern int slurp (stralloc *, int) ;
extern int openslurpclose (stralloc *, char const *) ;
extern int openreadclose (char const *, stralloc *, unsigned int) ;
extern int openreadnclose (char const *, char *, unsigned int) ;
extern int openreadfileclose (char const *, stralloc *, unsigned int) ;
#define openwritenclose_unsafe(f, s, n) openwritenclose_unsafe_internal(f, s, (n), 0, 0, 0)
#define openwritenclose_unsafe_sync(f, s, n) openwritenclose_unsafe_internal(f, s, (n), 0, 0, 1)
#define openwritenclose_unsafe_devino(f, s, n, dev, ino) openwritenclose_unsafe_internal(f, s, n, dev, (ino), 0)
#define openwritenclose_unsafe_devino_sync(f, s, n, dev, ino) openwritenclose_unsafe_internal(f, s, n, dev, (ino), 1)
extern int openwritenclose_unsafe_internal (char const *, char const *, unsigned int, uint64 *, uint64 *, int) ;
#define openwritenclose_suffix(f, s, n, t) openwritenclose_suffix_internal(f, s, n, 0, 0, 0, t)
#define openwritenclose_suffix_sync(f, s, n, t) openwritenclose_suffix_internal(f, s, n, 0, 0, 1, t)
#define openwritenclose_suffix_devino(f, s, n, t, dev, ino) openwritenclose_suffix_internal(f, s, n, dev, (ino), 0, t)
#define openwritenclose_suffix_devino_sync(f, s, n, t, dev, ino) openwritenclose_suffix_internal(f, s, n, dev, (ino), 1, t)
extern int openwritenclose_suffix_internal (char const *, char const *, unsigned int, uint64 *, uint64 *, int, char const *) ;
extern int rm_rf (char const *) ;
extern int rm_rf_tmp (char const *, stralloc *) ;
extern int rm_rf_in_tmp (stralloc *, unsigned int) ; /* caution ! */
extern int rmstar (char const *) ;
extern int rmstar_tmp (char const *, stralloc *) ;
/* Simple spawn functions with 0 or 1 communicating fds. */
extern pid_t child_spawn0 (char const *, char const *const *, char const *const *) ;
extern pid_t child_spawn1_pipe (char const *, char const *const *, char const *const *, int *, int) ;
extern pid_t child_spawn1_socket (char const *, char const *const *, char const *const *, int *) ;
/*
Unified function to fork a child with communication canals.
* uses posix_spawn() if available, else uses fork+exec
* requests n (the last arg) communication fds between parent and child
* if n=1, equivalent to child_spawn1_pipe; child writes, parent reads.
* if n>=2, the fds are pipes, parent reads on even and writes on odd.
*/
extern pid_t child_spawn (char const *, char const *const *, char const *const *, int *, unsigned int) ;
#endif
|
