diff options
Diffstat (limited to 'serial.c')
-rw-r--r-- | serial.c | 29 |
1 files changed, 18 insertions, 11 deletions
@@ -113,8 +113,10 @@ fdtype sp_openserport(char *dev, unsigned int baud) (tolower((unsigned char)dev[1]) == 'o') && (tolower((unsigned char)dev[2]) == 'm')) { dev2 = malloc(strlen(dev) + 5); - if (!dev2) - sp_die("Error: Out of memory"); + if (!dev2) { + msg_perr("Error: Out of memory: %s\n", strerror(errno)); + return -1; + } strcpy(dev2, "\\\\.\\"); strcpy(dev2 + 4, dev); } @@ -123,11 +125,13 @@ fdtype sp_openserport(char *dev, unsigned int baud) if (dev2 != dev) free(dev2); if (fd == INVALID_HANDLE_VALUE) { - sp_die("Error: cannot open serial port"); + msg_perr("Error: cannot open serial port: %s\n", strerror(errno)); + return -1; } DCB dcb; if (!GetCommState(fd, &dcb)) { - sp_die("Error: Could not fetch serial port configuration"); + msg_perr("Error: Could not fetch serial port configuration: %s\n", strerror(errno)); + return -1; } switch (baud) { case 9600: dcb.BaudRate = CBR_9600; break; @@ -135,29 +139,32 @@ fdtype sp_openserport(char *dev, unsigned int baud) case 38400: dcb.BaudRate = CBR_38400; break; case 57600: dcb.BaudRate = CBR_57600; break; case 115200: dcb.BaudRate = CBR_115200; break; - default: sp_die("Error: Could not set baud rate"); + default: msg_perr("Error: Could not set baud rate: %s\n", strerror(errno)); + return -1; } dcb.ByteSize = 8; dcb.Parity = NOPARITY; dcb.StopBits = ONESTOPBIT; if (!SetCommState(fd, &dcb)) { - sp_die("Error: Could not change serial port configuration"); + msg_perr("Error: Could not change serial port configuration: %s\n", strerror(errno)); + return -1; } return fd; #else struct termios options; int fd, i; fd = open(dev, O_RDWR | O_NOCTTY | O_NDELAY); - if (fd < 0) - sp_die("Error: cannot open serial port"); + if (fd < 0) { + msg_perr("Error: cannot open serial port: %s\n", strerror(errno)); + return -1; + } fcntl(fd, F_SETFL, 0); tcgetattr(fd, &options); for (i = 0;; i++) { if (sp_baudtable[i].baud == 0) { close(fd); - msg_perr("Error: cannot configure for baudrate %d\n", - baud); - exit(1); + msg_perr("Error: cannot configure for baudrate %d\n", baud); + return -1; } if (sp_baudtable[i].baud == baud) { cfsetispeed(&options, sp_baudtable[i].flag); |