2 * <unistd.h> wrapper functions.
5 * Jonathan Pryor (jonpryor@vt.edu)
7 * Copyright (C) 2004 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)
31 mph_return_if_off_t_overflow (offset);
32 if (Mono_Posix_FromSeekFlags (whence, &_whence) == -1)
36 return lseek (fd, offset, whence);
40 Mono_Posix_Syscall_read (gint32 fd, void *buf, mph_size_t count)
42 mph_return_if_size_t_overflow (count);
43 return read (fd, buf, (size_t) count);
47 Mono_Posix_Syscall_write (gint32 fd, const void *buf, mph_size_t count)
49 mph_return_if_size_t_overflow (count);
50 return write (fd, buf, (size_t) count);
54 Mono_Posix_Syscall_pread (gint32 fd, void *buf, mph_size_t count, mph_off_t offset)
56 mph_return_if_size_t_overflow (count);
57 mph_return_if_off_t_overflow (offset);
59 return pread (fd, buf, (size_t) count, (off_t) offset);
63 Mono_Posix_Syscall_pwrite (gint32 fd, const void *buf, mph_size_t count, mph_off_t offset)
65 mph_return_if_size_t_overflow (count);
66 mph_return_if_off_t_overflow (offset);
68 return pwrite (fd, buf, (size_t) count, (off_t) offset);
72 Mono_Posix_Syscall_pipe (gint32 *reading, gint32 *writing)
74 int filedes[2] = {-1, -1};
77 if (reading == NULL || writing == NULL) {
84 *reading = filedes[0];
85 *writing = filedes[1];
90 Mono_Posix_Syscall_getcwd (char *buf, mph_size_t size)
92 mph_return_val_if_size_t_overflow (size, NULL);
93 return getcwd (buf, (size_t) size);
97 Mono_Posix_Syscall_fpathconf (int filedes, int name)
99 if (Mono_Posix_FromPathConf (name, &name) == -1)
101 return fpathconf (filedes, name);
105 Mono_Posix_Syscall_pathconf (char *path, int name)
107 if (Mono_Posix_FromPathConf (name, &name) == -1)
109 return pathconf (path, name);
113 Mono_Posix_Syscall_sysconf (int name)
115 if (Mono_Posix_FromSysConf (name, &name) == -1)
117 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_FromConfStr (name, &name) == -1)
126 return confstr (name, buf, (size_t) len);
129 #ifdef HAVE_TTYNAME_R
131 Mono_Posix_Syscall_ttyname_r (int fd, char *buf, mph_size_t len)
133 mph_return_if_size_t_overflow (len);
134 return ttyname_r (fd, buf, (size_t) len);
136 #endif /* ndef HAVE_TTYNAME_R */
139 Mono_Posix_Syscall_readlink (const char *path, char *buf, mph_size_t len)
141 mph_return_if_size_t_overflow (len);
142 return readlink (path, buf, (size_t) len);
146 Mono_Posix_Syscall_getlogin_r (char *buf, mph_size_t len)
148 mph_return_if_size_t_overflow (len);
149 return getlogin_r (buf, (size_t) len);
153 Mono_Posix_Syscall_gethostname (char *buf, mph_size_t len)
155 mph_return_if_size_t_overflow (len);
156 return gethostname (buf, (size_t) len);
160 Mono_Posix_Syscall_sethostname (const char *name, mph_size_t len)
162 mph_return_if_size_t_overflow (len);
163 return sethostname (name, (size_t) len);
167 Mono_Posix_Syscall_gethostid (void)
172 #ifdef HAVE_SETHOSTID
174 Mono_Posix_Syscall_sethostid (gint64 hostid)
176 mph_return_if_long_overflow (hostid);
178 sethostid ((long) hostid);
181 return sethostid ((long) hostid);
184 #endif /* def HAVE_SETHOSTID */
187 Mono_Posix_Syscall_getdomainname (char *name, mph_size_t len)
189 mph_return_if_size_t_overflow (len);
190 return getdomainname (name, (size_t) len);
194 Mono_Posix_Syscall_setdomainname (const char *name, mph_size_t len)
196 mph_return_if_size_t_overflow (len);
197 return setdomainname (name, (size_t) len);
201 Mono_Posix_Syscall_truncate (const char *path, mph_off_t length)
203 mph_return_if_off_t_overflow (length);
204 return truncate (path, (off_t) length);
208 Mono_Posix_Syscall_ftruncate (int fd, mph_off_t length)
210 mph_return_if_off_t_overflow (length);
211 return ftruncate (fd, (off_t) length);
215 Mono_Posix_Syscall_lockf (int fd, int cmd, mph_off_t len)
217 mph_return_if_off_t_overflow (len);
218 if (Mono_Posix_FromLockFlags (cmd, &cmd) == -1)
220 return lockf (fd, cmd, (off_t) len);
224 Mono_Posix_Syscall_swab (void *from, void *to, mph_ssize_t n)
226 if (mph_have_long_overflow (n))
228 swab (from, to, (ssize_t) n);