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00015 #include <stdio.h>
00016 #include <sys/types.h>
00017 #include <unistd.h>
00018 #include <errno.h>
00019 #include <stdlib.h>
00020 #include <string.h>
00021 #include <signal.h>
00022 #include <dirent.h>
00023 #include <fcntl.h>
00024 #include <pthread.h>
00025
00026 #include "config.h"
00027 #include "debuglog.h"
00028 #include "utils.h"
00029 #include "pcscd.h"
00030 #include "sys_generic.h"
00031
00032 pid_t GetDaemonPid(void)
00033 {
00034 FILE *f;
00035 pid_t pid;
00036
00037
00038
00039
00040 if ((f = fopen(PCSCLITE_RUN_PID, "rb")) != NULL)
00041 {
00042 char pid_ascii[PID_ASCII_SIZE];
00043
00044 (void)fgets(pid_ascii, PID_ASCII_SIZE, f);
00045 (void)fclose(f);
00046
00047 pid = atoi(pid_ascii);
00048 }
00049 else
00050 {
00051 Log2(PCSC_LOG_CRITICAL, "Can't open " PCSCLITE_RUN_PID ": %s",
00052 strerror(errno));
00053 return -1;
00054 }
00055
00056 return pid;
00057 }
00058
00059 int SendHotplugSignal(void)
00060 {
00061 pid_t pid;
00062
00063 pid = GetDaemonPid();
00064
00065 if (pid != -1)
00066 {
00067 Log2(PCSC_LOG_INFO, "Send hotplug signal to pcscd (pid=%d)", pid);
00068 if (kill(pid, SIGUSR1) < 0)
00069 {
00070 Log3(PCSC_LOG_CRITICAL, "Can't signal pcscd (pid=%d): %s",
00071 pid, strerror(errno));
00072 return EXIT_FAILURE ;
00073 }
00074 (void)SYS_Sleep(1);
00075 }
00076
00077 return EXIT_SUCCESS;
00078 }
00079
00087 #define OPENCT_FILE "/var/run/openct/status"
00088 int CheckForOpenCT(void)
00089 {
00090 struct stat buf;
00091
00092 if (0 == stat(OPENCT_FILE, &buf))
00093 {
00094 Log1(PCSC_LOG_CRITICAL, "Remove OpenCT and try again");
00095 return 1;
00096 }
00097
00098 return 0;
00099 }
00100
00105 long int time_sub(struct timeval *a, struct timeval *b)
00106 {
00107 struct timeval r;
00108 r.tv_sec = a -> tv_sec - b -> tv_sec;
00109 r.tv_usec = a -> tv_usec - b -> tv_usec;
00110 if (r.tv_usec < 0)
00111 {
00112 r.tv_sec--;
00113 r.tv_usec += 1000000;
00114 }
00115
00116 return r.tv_sec * 1000000 + r.tv_usec;
00117 }
00118
00119 int ThreadCreate(pthread_t * pthThread, int attributes,
00120 PCSCLITE_THREAD_FUNCTION(pvFunction), LPVOID pvArg)
00121 {
00122 pthread_attr_t attr;
00123 int ret;
00124
00125 ret = pthread_attr_init(&attr);
00126 if (ret)
00127 return ret;
00128
00129 ret = pthread_attr_setdetachstate(&attr,
00130 attributes & THREAD_ATTR_DETACHED ? PTHREAD_CREATE_DETACHED : PTHREAD_CREATE_JOINABLE);
00131 if (ret)
00132 {
00133 (void)pthread_attr_destroy(&attr);
00134 return ret;
00135 }
00136
00137 ret = pthread_create(pthThread, &attr, pvFunction, pvArg);
00138 if (ret)
00139 return ret;
00140
00141 ret = pthread_attr_destroy(&attr);
00142 return ret;
00143 }