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)
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)
95 if (Mono_Posix_FromPathConf (name, &name) == -1)
97 return fpathconf (filedes, name);
101 Mono_Posix_Syscall_pathconf (const char *path, int name)
103 if (Mono_Posix_FromPathConf (name, &name) == -1)
105 return pathconf (path, name);
109 Mono_Posix_Syscall_sysconf (int name)
111 if (Mono_Posix_FromSysConf (name, &name) == -1)
113 return sysconf (name);
117 Mono_Posix_Syscall_confstr (int name, char *buf, mph_size_t len)
119 mph_return_if_size_t_overflow (len);
120 if (Mono_Posix_FromConfStr (name, &name) == -1)
122 return confstr (name, buf, (size_t) len);
125 #ifdef HAVE_TTYNAME_R
127 Mono_Posix_Syscall_ttyname_r (int fd, char *buf, mph_size_t len)
129 mph_return_if_size_t_overflow (len);
130 return ttyname_r (fd, buf, (size_t) len);
132 #endif /* ndef HAVE_TTYNAME_R */
135 Mono_Posix_Syscall_readlink (const char *path, char *buf, mph_size_t len)
138 mph_return_if_size_t_overflow (len);
139 r = readlink (path, buf, (size_t) len);
140 if (r >= 0 && r < 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 */
186 #ifdef HAVE_GETDOMAINNAME
188 Mono_Posix_Syscall_getdomainname (char *name, mph_size_t len)
190 mph_return_if_size_t_overflow (len);
191 return getdomainname (name, (size_t) len);
193 #endif /* def HAVE_GETDOMAINNAME */
195 #ifdef HAVE_SETDOMAINNAME
197 Mono_Posix_Syscall_setdomainname (const char *name, mph_size_t len)
199 mph_return_if_size_t_overflow (len);
200 return setdomainname (name, (size_t) len);
202 #endif /* def HAVE_SETDOMAINNAME */
205 Mono_Posix_Syscall_truncate (const char *path, mph_off_t length)
207 mph_return_if_off_t_overflow (length);
208 return truncate (path, (off_t) length);
212 Mono_Posix_Syscall_ftruncate (int fd, mph_off_t length)
214 mph_return_if_off_t_overflow (length);
215 return ftruncate (fd, (off_t) length);
219 Mono_Posix_Syscall_lockf (int fd, int cmd, mph_off_t len)
221 mph_return_if_off_t_overflow (len);
222 if (Mono_Posix_FromLockfCommand (cmd, &cmd) == -1)
224 return lockf (fd, cmd, (off_t) len);
228 Mono_Posix_Syscall_swab (void *from, void *to, mph_ssize_t n)
230 if (mph_have_long_overflow (n))
232 swab (from, to, (ssize_t) n);