2 * <unistd.h> wrapper functions.
5 * Jonathan Pryor (jonpryor@vt.edu)
7 * Copyright (C) 2004-2006 Jonathan Pryor
12 #endif /* ndef _GNU_SOURCE */
14 #include <sys/types.h>
20 #include <string.h> /* for swab(3) on Mac OS X */
28 Mono_Posix_Syscall_lseek (gint32 fd, mph_off_t offset, gint32 whence)
30 mph_return_if_off_t_overflow (offset);
32 return lseek (fd, offset, whence);
36 Mono_Posix_Syscall_read (gint32 fd, void *buf, mph_size_t count)
38 mph_return_if_size_t_overflow (count);
39 return read (fd, buf, (size_t) count);
43 Mono_Posix_Syscall_write (gint32 fd, void *buf, mph_size_t count)
45 mph_return_if_size_t_overflow (count);
46 return write (fd, buf, (size_t) count);
50 Mono_Posix_Syscall_pread (gint32 fd, void *buf, mph_size_t count, mph_off_t offset)
52 mph_return_if_size_t_overflow (count);
53 mph_return_if_off_t_overflow (offset);
55 return pread (fd, buf, (size_t) count, (off_t) offset);
59 Mono_Posix_Syscall_pwrite (gint32 fd, void *buf, mph_size_t count, mph_off_t offset)
61 mph_return_if_size_t_overflow (count);
62 mph_return_if_off_t_overflow (offset);
64 return pwrite (fd, buf, (size_t) count, (off_t) offset);
68 Mono_Posix_Syscall_pipe (gint32 *reading, gint32 *writing)
70 int filedes[2] = {-1, -1};
73 if (reading == NULL || writing == NULL) {
80 *reading = filedes[0];
81 *writing = filedes[1];
86 Mono_Posix_Syscall_getcwd (char *buf, mph_size_t size)
88 mph_return_val_if_size_t_overflow (size, NULL);
89 return getcwd (buf, (size_t) size);
93 Mono_Posix_Syscall_fpathconf (int filedes, int name, int defaultError)
96 if (Mono_Posix_FromPathconfName (name, &name) == -1)
98 return fpathconf (filedes, name);
102 Mono_Posix_Syscall_pathconf (const char *path, int name, int defaultError)
104 errno = defaultError;
105 if (Mono_Posix_FromPathconfName (name, &name) == -1)
107 return pathconf (path, name);
111 Mono_Posix_Syscall_sysconf (int name, int defaultError)
113 errno = defaultError;
114 if (Mono_Posix_FromSysconfName (name, &name) == -1)
116 return sysconf (name);
121 Mono_Posix_Syscall_confstr (int name, char *buf, mph_size_t len)
123 mph_return_if_size_t_overflow (len);
124 if (Mono_Posix_FromConfstrName (name, &name) == -1)
126 return confstr (name, buf, (size_t) len);
128 #endif /* def HAVE_CONFSTR */
130 #ifdef HAVE_TTYNAME_R
132 Mono_Posix_Syscall_ttyname_r (int fd, char *buf, mph_size_t len)
134 mph_return_if_size_t_overflow (len);
135 return ttyname_r (fd, buf, (size_t) len);
137 #endif /* ndef HAVE_TTYNAME_R */
140 Mono_Posix_Syscall_readlink (const char *path, char *buf, mph_size_t len)
143 mph_return_if_size_t_overflow (len);
144 r = readlink (path, buf, (size_t) len);
145 if (r >= 0 && r < len)
152 Mono_Posix_Syscall_getlogin_r (char *buf, mph_size_t len)
154 mph_return_if_size_t_overflow (len);
155 return getlogin_r (buf, (size_t) len);
157 #endif /* def HAVE_GETLOGIN_R */
160 Mono_Posix_Syscall_gethostname (char *buf, mph_size_t len)
162 mph_return_if_size_t_overflow (len);
163 return gethostname (buf, (size_t) len);
168 Mono_Posix_Syscall_sethostname (const char *name, mph_size_t len)
170 mph_return_if_size_t_overflow (len);
171 return sethostname (name, (size_t) len);
173 #endif /* def HAVE_SETHOSTNAME */
177 Mono_Posix_Syscall_gethostid (void)
181 #endif /* def HAVE_GETHOSTID */
183 #ifdef HAVE_SETHOSTID
185 Mono_Posix_Syscall_sethostid (gint64 hostid)
187 mph_return_if_long_overflow (hostid);
189 sethostid ((long) hostid);
192 return sethostid ((long) hostid);
195 #endif /* def HAVE_SETHOSTID */
197 #ifdef HAVE_GETDOMAINNAME
199 Mono_Posix_Syscall_getdomainname (char *name, mph_size_t len)
201 mph_return_if_size_t_overflow (len);
202 return getdomainname (name, (size_t) len);
204 #endif /* def HAVE_GETDOMAINNAME */
206 #ifdef HAVE_SETDOMAINNAME
208 Mono_Posix_Syscall_setdomainname (const char *name, mph_size_t len)
210 mph_return_if_size_t_overflow (len);
211 return setdomainname (name, (size_t) len);
213 #endif /* def HAVE_SETDOMAINNAME */
215 /* Android implements truncate, but doesn't declare it.
216 * Result is a warning during compilation, so skip it.
218 #ifndef PLATFORM_ANDROID
220 Mono_Posix_Syscall_truncate (const char *path, mph_off_t length)
222 mph_return_if_off_t_overflow (length);
223 return truncate (path, (off_t) length);
228 Mono_Posix_Syscall_ftruncate (int fd, mph_off_t length)
230 mph_return_if_off_t_overflow (length);
231 return ftruncate (fd, (off_t) length);
236 Mono_Posix_Syscall_lockf (int fd, int cmd, mph_off_t len)
238 mph_return_if_off_t_overflow (len);
239 if (Mono_Posix_FromLockfCommand (cmd, &cmd) == -1)
241 return lockf (fd, cmd, (off_t) len);
243 #endif /* def HAVE_LOCKF */
247 Mono_Posix_Syscall_swab (void *from, void *to, mph_ssize_t n)
249 if (mph_have_long_overflow (n))
251 swab (from, to, (ssize_t) n);
254 #endif /* def HAVE_SWAB */
256 #if HAVE_SETUSERSHELL
258 Mono_Posix_Syscall_setusershell (void)
263 #endif /* def HAVE_SETUSERSHELL */
265 #if HAVE_ENDUSERSHELL
267 Mono_Posix_Syscall_endusershell (void)
272 #endif /* def HAVE_ENDUSERSHELL */
275 Mono_Posix_Syscall_sync (void)