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00017 #include "config.h"
00018 #include <sys/types.h>
00019 #include <sys/mman.h>
00020 #include <sys/stat.h>
00021 #include <sys/wait.h>
00022 #include <sys/time.h>
00023 #include <sys/file.h>
00024 #include <fcntl.h>
00025 #include <errno.h>
00026 #include <unistd.h>
00027 #include <stdio.h>
00028 #include <stdlib.h>
00029 #include <string.h>
00030 #include <signal.h>
00031 #include <time.h>
00032
00033 #include "misc.h"
00034 #include "sys_generic.h"
00035 #include "debug.h"
00036
00043 INTERNAL int SYS_Initialize(void)
00044 {
00045
00046
00047
00048 return 0;
00049 }
00050
00061 INTERNAL int SYS_Mkdir(const char *path, int perms)
00062 {
00063 return mkdir(path, perms);
00064 }
00065
00071 INTERNAL int SYS_GetPID(void)
00072 {
00073 return getpid();
00074 }
00075
00081 INTERNAL int SYS_Sleep(int iTimeVal)
00082 {
00083 #ifdef HAVE_NANOSLEEP
00084 struct timespec mrqtp;
00085 mrqtp.tv_sec = iTimeVal;
00086 mrqtp.tv_nsec = 0;
00087
00088 return nanosleep(&mrqtp, NULL);
00089 #else
00090 return sleep(iTimeVal);
00091 #endif
00092 }
00093
00099 INTERNAL int SYS_USleep(int iTimeVal)
00100 {
00101 #ifdef HAVE_NANOSLEEP
00102 struct timespec mrqtp;
00103 mrqtp.tv_sec = iTimeVal/1000000;
00104 mrqtp.tv_nsec = (iTimeVal - (mrqtp.tv_sec * 1000000)) * 1000;
00105
00106 return nanosleep(&mrqtp, NULL);
00107 #else
00108 struct timeval tv;
00109 tv.tv_sec = iTimeVal/1000000;
00110 tv.tv_usec = iTimeVal - (tv.tv_sec * 1000000);
00111 return select(0, NULL, NULL, NULL, &tv);
00112 #endif
00113 }
00114
00127 INTERNAL int SYS_OpenFile(const char *pcFile, int flags, int mode)
00128 {
00129 int fd = open(pcFile, flags, mode);
00130 fcntl(fd, F_SETFD, FD_CLOEXEC);
00131 return fd;
00132 }
00133
00143 INTERNAL int SYS_CloseFile(int iHandle)
00144 {
00145 return close(iHandle);
00146 }
00147
00157 INTERNAL int SYS_RemoveFile(const char *pcFile)
00158 {
00159 return remove(pcFile);
00160 }
00161
00162 INTERNAL int SYS_Chmod(const char *path, int mode)
00163 {
00164 return chmod(path, mode);
00165 }
00166
00167 INTERNAL int SYS_Chdir(const char *path)
00168 {
00169 return chdir(path);
00170 }
00171
00172 INTERNAL int SYS_GetUID(void)
00173 {
00174 return getuid();
00175 }
00176
00177 INTERNAL int SYS_GetGID(void)
00178 {
00179 return getgid();
00180 }
00181
00182 INTERNAL int SYS_SeekFile(int iHandle, int iSeekLength)
00183 {
00184 int iOffset;
00185 iOffset = lseek(iHandle, iSeekLength, SEEK_SET);
00186 return iOffset;
00187 }
00188
00189 INTERNAL int SYS_ReadFile(int iHandle, char *pcBuffer, int iLength)
00190 {
00191 return read(iHandle, pcBuffer, iLength);
00192 }
00193
00194 INTERNAL int SYS_WriteFile(int iHandle, const char *pcBuffer, int iLength)
00195 {
00196 return write(iHandle, pcBuffer, iLength);
00197 }
00198
00207 INTERNAL int SYS_GetPageSize(void)
00208 {
00209 static int size = -1;
00210
00211
00212 if (-1 == size)
00213 size = getpagesize();
00214 return size;
00215 }
00216
00227 INTERNAL void *SYS_MemoryMap(int iSize, int iFid, int iOffset)
00228 {
00229
00230 void *vAddress;
00231
00232 vAddress = 0;
00233 vAddress = mmap(0, iSize, PROT_READ | PROT_WRITE,
00234 MAP_SHARED, iFid, iOffset);
00235
00236
00237
00238
00239
00240
00241
00242
00243 return vAddress;
00244 }
00245
00255 INTERNAL void *SYS_PublicMemoryMap(int iSize, int iFid, int iOffset)
00256 {
00257
00258 void *vAddress;
00259
00260 vAddress = 0;
00261 vAddress = mmap(0, iSize, PROT_READ, MAP_SHARED, iFid, iOffset);
00262 if (vAddress == (void*)-1)
00263 {
00264 Log2(PCSC_LOG_CRITICAL, "SYS_PublicMemoryMap() failed: %s",
00265 strerror(errno));
00266 vAddress = NULL;
00267 }
00268
00269 return vAddress;
00270 }
00271
00278 INTERNAL void SYS_PublicMemoryUnmap(void * ptr, int iSize)
00279 {
00280 (void)munmap(ptr, iSize);
00281 }
00282
00293 INTERNAL int SYS_MMapSynchronize(void *begin, int length)
00294 {
00295 int flags = 0;
00296
00297 #ifdef MS_INVALIDATE
00298 flags |= MS_INVALIDATE;
00299 #endif
00300 return msync(begin, length, MS_SYNC | flags);
00301 }
00302
00303 INTERNAL int SYS_Fork(void)
00304 {
00305 return fork();
00306 }
00307
00318 INTERNAL int SYS_Daemon(int nochdir, int noclose)
00319 {
00320 #ifdef HAVE_DAEMON
00321 return daemon(nochdir, noclose);
00322 #else
00323
00324 #if defined(__SVR4) && defined(__sun)
00325 pid_t pid;
00326
00327 pid = SYS_Fork();
00328 if (-1 == pid)
00329 {
00330 Log2(PCSC_LOG_CRITICAL, "main: SYS_Fork() failed: %s", strerror(errno));
00331 return -1;
00332 }
00333 else
00334 {
00335 if (pid != 0)
00336
00337 exit(0);
00338 }
00339
00340 setsid();
00341
00342 pid = SYS_Fork();
00343 if (-1 == pid)
00344 {
00345 Log2(PCSC_LOG_CRITICAL, "main: SYS_Fork() failed: %s", strerror(errno));
00346 exit(1);
00347 }
00348 else
00349 {
00350 if (pid != 0)
00351
00352 exit(0);
00353 }
00354 #else
00355 switch (SYS_Fork())
00356 {
00357 case -1:
00358 return (-1);
00359 case 0:
00360 break;
00361 default:
00362 return (0);
00363 }
00364 #endif
00365
00366 if (!noclose) {
00367 if (SYS_CloseFile(0))
00368 Log2(PCSC_LOG_ERROR, "SYS_CloseFile(0) failed: %s",
00369 strerror(errno));
00370
00371 if (SYS_CloseFile(1))
00372 Log2(PCSC_LOG_ERROR, "SYS_CloseFile(1) failed: %s",
00373 strerror(errno));
00374
00375 if (SYS_CloseFile(2))
00376 Log2(PCSC_LOG_ERROR, "SYS_CloseFile(2) failed: %s",
00377 strerror(errno));
00378 }
00379 if (!nochdir) {
00380 if (SYS_Chdir("/"))
00381 Log2(PCSC_LOG_ERROR, "SYS_Chdir() failed: %s", strerror(errno));
00382 }
00383 return 0;
00384 #endif
00385 }
00386
00387 INTERNAL int SYS_Stat(const char *pcFile, struct stat *psStatus)
00388 {
00389 return stat(pcFile, psStatus);
00390 }
00391
00392 INTERNAL int SYS_RandomInt(int fStart, int fEnd)
00393 {
00394 static int iInitialized = 0;
00395 int iRandNum = 0;
00396
00397 if (0 == iInitialized)
00398 {
00399 srand(SYS_GetSeed());
00400 iInitialized = 1;
00401 }
00402
00403 iRandNum = ((rand()+0.0)/RAND_MAX * (fEnd - fStart)) + fStart;
00404
00405 return iRandNum;
00406 }
00407
00408 INTERNAL int SYS_GetSeed(void)
00409 {
00410 struct timeval tv;
00411 struct timezone tz;
00412 long myseed = 0;
00413
00414 tz.tz_minuteswest = 0;
00415 tz.tz_dsttime = 0;
00416 if (gettimeofday(&tv, &tz) == 0)
00417 {
00418 myseed = tv.tv_usec;
00419 } else
00420 {
00421 myseed = (long) time(NULL);
00422 }
00423 return myseed;
00424 }
00425
00426 INTERNAL void SYS_Exit(int iRetVal)
00427 {
00428 _exit(iRetVal);
00429 }
00430