94 lines
2.0 KiB
C
94 lines
2.0 KiB
C
/*
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* main_helper
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* ===========
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* by DJ0ABR
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*
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* functions useful for every main() program start
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*
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* */
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#include "qo100modem.h"
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// check if it is already running
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int isRunning(char *prgname)
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{
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int num = 0;
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char s[256];
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sprintf(s,"ps -e | grep %s",prgname);
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FILE *fp = popen(s,"r");
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if(fp)
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{
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// gets the output of the system command
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while (fgets(s, sizeof(s)-1, fp) != NULL)
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{
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if(strstr(s,prgname) && !strstr(s,"grep"))
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{
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if(++num == 2)
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{
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printf("%s is already running, do not start twice !",prgname);
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pclose(fp);
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return 1;
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}
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}
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}
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pclose(fp);
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}
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return 0;
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}
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// signal handler
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void sighandler(int signum)
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{
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printf("program stopped by signal\n");
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stopModem();
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exit_fft();
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keeprunning = 0;
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close(BC_sock_AppToModem);
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}
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void install_signal_handler()
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{
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// signal handler, mainly used if the user presses Ctrl-C
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struct sigaction sigact;
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sigact.sa_handler = sighandler;
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sigemptyset(&sigact.sa_mask);
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sigact.sa_flags = 0;
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sigaction(SIGINT, &sigact, NULL);
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sigaction(SIGTERM, &sigact, NULL);
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sigaction(SIGQUIT, &sigact, NULL);
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sigaction(SIGABRT, &sigact, NULL); // assert() error
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//sigaction(SIGSEGV, &sigact, NULL);
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// switch off signal 13 (broken pipe)
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// instead handle the return value of the write or send function
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signal(SIGPIPE, SIG_IGN);
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}
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int run_console_program(char *cmd)
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{
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printf("executing: %s\n",cmd);
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int ret = system(cmd);
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if(ret){}
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return 0;
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}
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void showbytestring(char *title, uint8_t *data, int anz)
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{
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printf("%s. Len %d: ",title,anz);
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for(int i=0; i<anz; i++)
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printf("%02X ",data[i]);
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printf("\n");
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}
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void showbytestring16(char *title, uint16_t *data, int anz)
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{
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printf("%s. Len %d: ",title,anz);
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for(int i=0; i<anz; i++)
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printf("%04X ",data[i]);
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printf("\n");
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}
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