Adjust code style to comply with clang-format rules

.clang-format

@@ -3,3 +3,7 @@ IndentWidth: 4
 AllowShortFunctionsOnASingleLine: None
 KeepEmptyLinesAtTheStartOfBlocks: false
 BreakBeforeBraces: Allman
+IndentCaseLabels: true
+ColumnLimit: 144
+SortIncludes: false
+SkipMacroDefinitionBody: true

src/main.c

@@ -68,7 +68,7 @@ int main(int argc, char *argv[])
     /* Configure input terminal */
     if (isatty(fileno(stdin)))
     {
-       stdin_configure();
+        stdin_configure();
     }
     else
     {
@@ -110,7 +110,8 @@ int main(int argc, char *argv[])
     if (interactive_mode)
     {
         tio_printf("Press ctrl-%c q to quit", option.prefix_key);
-    } else
+    }
+    else
     {
         tio_printf("Non-interactive mode enabled");
         tio_printf("Press ctrl-c to quit");

src/misc.c

@@ -170,6 +170,7 @@ bool match_patterns(const char *string, const char *patterns)
     pattern = strtok(patterns_copy, ",");
     while (pattern != NULL)
     {
+        // clang-format off
         // Check if the string matches the current pattern
         #ifdef FNM_EXTMATCH
             if (fnmatch(pattern, string, FNM_EXTMATCH) == 0)
@@ -180,6 +181,7 @@ bool match_patterns(const char *string, const char *patterns)
             free(patterns_copy);
             return true;
         }
+        // clang-format on
 
         // Move to the next pattern
         pattern = strtok(NULL, ",");

src/options.c

@@ -61,6 +61,7 @@ enum opt_t
     OPT_EXEC,
 };
 
+// clang-format off
 /* Default options */
 struct option_t option =
 {
@@ -125,6 +126,7 @@ struct option_t option =
     .map_i_msb2lsb = false,
     .map_o_ign_cr = false,
 };
+// clang-format on
 
 void option_print_help(char *argv[])
 {
@@ -833,12 +835,14 @@ void options_print()
     tio_printf(" Output line delay: %d", option.output_line_delay);
     tio_printf(" Automatic connect strategy: %s", option_auto_connect_state_to_string(option.auto_connect));
     tio_printf(" Automatic reconnect: %s", option.no_reconnect ? "true" : "false");
+    // clang-format off
     tio_printf(" Pulse duration: DTR=%d RTS=%d CTS=%d DSR=%d DCD=%d RI=%d", option.dtr_pulse_duration,
                                                                             option.rts_pulse_duration,
                                                                             option.cts_pulse_duration,
                                                                             option.dsr_pulse_duration,
                                                                             option.dcd_pulse_duration,
                                                                             option.ri_pulse_duration);
+    // clang-format on
     tio_printf(" Input mode: %s", option_input_mode_to_string(option.input_mode));
     tio_printf(" Output mode: %s", option_output_mode_to_string(option.output_mode));
     tio_printf(" Alert: %s", option_alert_state_to_string(option.alert));
@@ -887,8 +891,9 @@ void options_parse(int argc, char *argv[])
         option.vt100 = true;
     }
 
-    while (1)
+    while (true)
     {
+        // clang-format off
         static struct option long_options[] =
         {
             {"baudrate",             required_argument, 0, 'b'                     },
@@ -932,6 +937,7 @@ void options_parse(int argc, char *argv[])
             {"complete-profiles",    no_argument,       0, OPT_COMPLETE_PROFILES   },
             {0,                      0,                 0,  0                      }
         };
+        // clang-format on
 
         /* getopt_long stores the option index here */
         int option_index = 0;
@@ -1131,7 +1137,7 @@ void options_parse(int argc, char *argv[])
     /* Assume first non-option is the target (tty device, profile, tid) */
     if (strcmp(option.target, ""))
     {
-            optind++;
+        optind++;
     }
     else if (optind < argc)
     {
@@ -1176,6 +1182,7 @@ void options_parse_final(int argc, char *argv[])
 #ifdef __CYGWIN__
     unsigned char portnum;
     char *tty_win;
+    // clang-format off
     if ( ((strncmp("COM", option.target, 3) == 0)
         || (strncmp("com", option.target, 3) == 0) )
         && (sscanf(option.target + 3, "%hhu", &portnum) == 1)
@@ -1184,5 +1191,6 @@ void options_parse_final(int argc, char *argv[])
         asprintf(&tty_win, "/dev/ttyS%hhu", portnum - 1);
         option.target = tty_win;
     }
+    // clang-format on
 #endif
 }

src/readline.c

@@ -90,7 +90,7 @@ static void readline_input_cr(void)
             rl_history_count++;
         }
         else
-    {
+        {
             free(rl_history[0]);
             memmove(&rl_history[0], &rl_history[1], (RL_HISTORY_MAX - 1) * sizeof(char*));
             rl_history[RL_HISTORY_MAX - 1] = strndup(rl_line, rl_line_length);

src/script.c

@@ -45,6 +45,7 @@
 
 static int device_fd;
 
+// clang-format off
 static char script_init[] =
 "tio.set = function(arg)\n"
 "    local dtr = arg.DTR or -1\n"
@@ -71,6 +72,7 @@ static char script_init[] =
 "end\n"
 "tio.alwaysecho = true\n"
 "setmetatable(tio, tio)\n";
+// clang-format on
 
 static bool alwaysecho(lua_State *L)
 {
@@ -100,7 +102,9 @@ static int api_echo(lua_State *L)
                 log_printf("\n[%s] %s", pTimeStampNow, str);
             }
         }
-    } else {
+    }
+    else
+    {
         for (size_t i=0; i<len; i++)
         {
             putchar(str[i]);
@@ -255,7 +259,8 @@ static int api_write(lua_State *L)
     ssize_t ret;
     int attempts = 100;
 
-    do {
+    do
+    {
         ret = write(device_fd, string, len);
         if (ret < 0)
             return luaL_error(L, "%s", strerror(errno));
@@ -319,7 +324,8 @@ static int api_read(lua_State *L)
 }
 
 // lua: string = tio.readline(timeout)
-static int api_readline(lua_State *L) {
+static int api_readline(lua_State *L)
+{
     int timeout = lua_tointeger(L, 1); //ms
     luaL_Buffer b;
     char ch;
@@ -331,7 +337,8 @@ static int api_readline(lua_State *L) {
 
     luaL_buffinit(L, &b);
     luaL_prepbuffer(&b);
-    while (true) {
+    while (true)
+    {
         int ret = read_poll(device_fd, &ch, 1, timeout);
 
         if (ret < 0)
@@ -440,6 +447,7 @@ static void script_file_run(lua_State *L, const char *filename)
     }
 }
 
+// clang-format off
 static const struct luaL_Reg tio_lib[] =
 {
     { "echo", api_echo},
@@ -453,6 +461,7 @@ static const struct luaL_Reg tio_lib[] =
     { "ttysearch", api_ttysearch},
     {NULL, NULL}
 };
+// clang-format on
 
 static void script_load(lua_State *L)
 {

src/tty.c

@@ -147,6 +147,7 @@ typedef enum
     SUBCOMMAND_MAP,
 } sub_command_t;
 
+// clang-format off
 const char random_array[] =
 {
 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x28, 0x20, 0x28, 0x0A, 0x20,
@@ -160,6 +161,7 @@ const char random_array[] =
 0x66, 0x65, 0x65, 0x20, 0x62, 0x72, 0x65, 0x61, 0x6B, 0x21, 0x0A, 0x20, 0x0A,
 0x00
 };
+// clang-format on
 
 bool interactive_mode = true;
 
@@ -212,7 +214,7 @@ inline static bool is_valid_hex(char c)
 
 inline static unsigned char char_to_nibble(char c)
 {
-    if(c >= '0' && c <= '9')
+    if (c >= '0' && c <= '9')
     {
         return c - '0';
     }
@@ -331,7 +333,7 @@ void *tty_stdin_input_thread(void *arg)
     pthread_mutex_unlock(&mutex_input_ready);
 
     // Input loop for stdin
-    while (1)
+    while (true)
     {
         /* Input from stdin ready */
         byte_count = read(STDIN_FILENO, input_buffer, BUFSIZ);
@@ -360,7 +362,8 @@ void *tty_stdin_input_thread(void *arg)
             for (int i = 0; i<byte_count; i++)
             {
                 // first do key hit check for xmodem abort
-                if (!key_hit) {
+                if (!key_hit)
+                {
                     key_hit = input_buffer[i];
                     byte_count--;
                     memcpy(input_buffer+i, input_buffer+i+1, byte_count-i);
@@ -383,7 +386,7 @@ void *tty_stdin_input_thread(void *arg)
                             exit(EXIT_SUCCESS);
                             break;
                         case KEY_SHIFT_F:
-                            tio_printf("Flushed data I/O buffers")
+                            tio_printf("Flushed data I/O buffers");
                             tcflush(device_fd, TCIOFLUSH);
                             break;
                         default:
@@ -414,7 +417,8 @@ void tty_input_thread_create(void)
 {
     pthread_mutex_lock(&mutex_input_ready);
 
-    if (pthread_create(&thread, NULL, tty_stdin_input_thread, NULL) != 0) {
+    if (pthread_create(&thread, NULL, tty_stdin_input_thread, NULL) != 0)
+    {
         tio_error_printf("pthread_create() error");
         exit(1);
     }
@@ -631,6 +635,7 @@ void tty_output_mode_set(output_mode_t mode)
 
 static void mappings_print(void)
 {
+    // clang-format off
     if (option.map_i_cr_nl || option.map_ign_cr || option.map_i_ff_escc ||
         option.map_i_nl_cr || option.map_i_nl_crnl || option.map_i_cr_crnl ||
         option.map_o_cr_nl || option.map_o_del_bs || option.map_o_nl_crnl ||
@@ -656,6 +661,7 @@ static void mappings_print(void)
     {
         tio_printf(" Mappings: none");
     }
+    // clang-format on
 }
 
 void handle_command_sequence(char input_char, char *output_char, bool *forward)
@@ -1011,6 +1017,7 @@ void handle_command_sequence(char input_char, char *output_char, bool *forward)
                 break;
 
             case KEY_M:
+                // clang-format off
                 /* Change mapping of characters on input or output */
                 tio_printf("Please enter which mapping to set or unset:");
                 tio_printf(" (0) ICRNL: %s mapping CR to NL on input (unless IGNCR is set)",
@@ -1039,6 +1046,7 @@ void handle_command_sequence(char input_char, char *output_char, bool *forward)
                         option.map_o_nulbrk ? "Unset" : "Set");
                 tio_printf(" (c) OIGNCR: %s ignoring CR on output",
                         option.map_o_ign_cr ? "Unset" : "Set");
+                // clang-format on
 
                 // Process next input character as sub command
                 sub_command = SUBCOMMAND_MAP;
@@ -1050,7 +1058,7 @@ void handle_command_sequence(char input_char, char *output_char, bool *forward)
 
             case KEY_R:
                 /* Run script */
-                tio_printf("Run Lua script")
+                tio_printf("Run Lua script");
                 tio_printf_raw("Enter file name: ");
                 if (tio_readln())
                 {
@@ -1126,12 +1134,13 @@ void handle_command_sequence(char input_char, char *output_char, bool *forward)
             case KEY_Y:
                 tio_printf("Send file with YMODEM");
                 tio_printf_raw("Enter file name: ");
-                if (tio_readln()) {
+                if (tio_readln())
-		    int ret;
+                {
+                    int ret;
 
                     tio_printf("Sending file '%s'  ", line);
                     tio_printf("Press any key to abort transfer");
-		    ret = xymodem_send(device_fd, line, YMODEM);
+                    ret = xymodem_send(device_fd, line, YMODEM);
                     tio_printf("%s", ret < 0 ? "Aborted" : "Done");
                 }
                 break;
@@ -1194,9 +1203,9 @@ void stdout_restore(void)
     // If terminal is vt100
     if (option.vt100)
     {
-      // Disable DEC Special Graphics character set just in case it was randomly
+        // Disable DEC Special Graphics character set just in case it was randomly
-      // enabled by noise from serial device.
+        // enabled by noise from serial device.
-      putchar('\017');
+        putchar('\017');
     }
 }
 
@@ -2044,7 +2053,8 @@ GList *tty_search_for_serial_devices(void)
         }
 
         /* Populate device info */
-        *device_info = (device_t) {
+        *device_info = (device_t)
+        {
             .path = devicePath,
             .tid = g_strdup(tid),
             .uptime = uptime,

src/xymodem.c

@@ -40,7 +40,8 @@
 
 #define min(a, b)       ((a) < (b) ? (a) : (b))
 
-struct xpacket_1k {
+struct xpacket_1k
+{
     uint8_t  type;
     uint8_t  seq;
     uint8_t  nseq;
@@ -49,7 +50,8 @@ struct xpacket_1k {
     uint8_t  crc_lo;
 } __attribute__((packed));
 
-struct xpacket {
+struct xpacket
+{
     uint8_t  type;
     uint8_t  seq;
     uint8_t  nseq;
@@ -63,7 +65,8 @@ static uint16_t crc16(const uint8_t *data, uint16_t size)
 {
     uint16_t crc, s;
 
-    for (crc = 0; size > 0; size--) {
+    for (crc = 0; size > 0; size--)
+    {
         s = *data++ ^ (crc >> 8);
         s ^= (s >> 4);
         crc = (crc << 8) ^ s ^ (s << 5) ^ (s << 12);
@@ -81,16 +84,19 @@ static int xmodem_1k(int sio, const void *data, size_t len, int seq)
     /* Drain pending characters from serial line. Insist on the
      * last drained character being 'C'.
      */
-    while(1) {
+    while (true)
+    {
         if (key_hit)
             return -1;
         rc = read_poll(sio, &resp, 1, 50);
-        if (rc == 0) {
+        if (rc == 0)
+        {
             if (resp == 'C') break;
             if (resp == CAN) return ERR;
             continue;
         }
-        else if (rc < 0) {
+        else if (rc < 0)
+        {
             tio_error_print("Read sync from serial failed");
             return ERR;
         }
@@ -100,7 +106,8 @@ static int xmodem_1k(int sio, const void *data, size_t len, int seq)
     packet.seq  = seq;
     packet.type = STX;
 
-    while (len) {
+    while (len)
+    {
         size_t  sz, z = 0;
         char   *from, status;
 
@@ -116,11 +123,14 @@ static int xmodem_1k(int sio, const void *data, size_t len, int seq)
         /* Send packet */
         from = (char *) &packet;
         sz =  sizeof(packet);
-        while (sz) {
+        while (sz)
+        {
             if (key_hit)
                 return ERR;
-            if ((rc = write(sio, from, sz)) < 0 ) {
+            if ((rc = write(sio, from, sz)) < 0 )
-                if (errno ==  EWOULDBLOCK) {
+            {
+                if (errno ==  EWOULDBLOCK)
+                {
                     usleep(1000);
                     continue;
                 }
@@ -138,30 +148,36 @@ static int xmodem_1k(int sio, const void *data, size_t len, int seq)
         if (seq == 0 && packet.data[0] == 0) resp = ACK;
 
         /* Read receiver response, timeout 1 s */
-        for(int n=0; n < 20; n++) {
+        for (int n = 0; n < 20; n++)
+        {
             if (key_hit)
                 return ERR;
             rc = read_poll(sio, &resp, 1, 50);
-            if (rc < 0) {
+            if (rc < 0)
+            {
                 tio_error_print("Read ack/nak from serial failed");
                 return ERR;
-            } else if(rc > 0) {
+            }
+            else if (rc > 0)
+            {
                 break;
             }
         }
 
         /* Update "progress bar" */
-        switch (resp) {
+        switch (resp)
-        case NAK: status = 'N'; break;
+        {
-        case ACK: status = '.'; break;
+            case NAK: status = 'N'; break;
-        case 'C': status = 'C'; break;
+            case ACK: status = '.'; break;
-        case CAN: status = '!'; return ERR;
+            case 'C': status = 'C'; break;
-        default:  status = '?';
+            case CAN: status = '!'; return ERR;
+            default:  status = '?';
         }
         write(STDOUT_FILENO, &status, 1);
 
         /* Move to next block after ACK */
-        if (resp == ACK) {
+        if (resp == ACK)
+        {
             packet.seq++;
             len -= z;
             buf += z;
@@ -169,23 +185,29 @@ static int xmodem_1k(int sio, const void *data, size_t len, int seq)
     }
 
     /* Send EOT at 1 Hz until ACK or CAN received */
-    while (seq) {
+    while (seq)
+    {
         if (key_hit)
             return ERR;
-        if (write(sio, EOT_STR, 1) < 0) {
+        if (write(sio, EOT_STR, 1) < 0)
+        {
             tio_error_print("Write EOT to serial failed");
             return ERR;
         }
         write(STDOUT_FILENO, "|", 1);
         /* 1s timeout */
         rc = read_poll(sio, &resp, 1, 1000);
-        if (rc < 0) {
+        if (rc < 0)
+        {
             tio_error_print("Read from serial failed");
             return ERR;
-        } else if(rc == 0) {
+        }
+        else if (rc == 0)
+        {
             continue;
         }
-        if (resp == ACK || resp == CAN) {
+        if (resp == ACK || resp == CAN)
+        {
             write(STDOUT_FILENO, "\r\n", 2);
             return (resp == ACK) ? OK : ERR;
         }
@@ -203,16 +225,19 @@ static int xmodem(int sio, const void *data, size_t len)
     /* Drain pending characters from serial line. Insist on the
      * last drained character being 'C'.
      */
-    while(1) {
+    while (true)
+    {
         if (key_hit)
             return -1;
         rc = read_poll(sio, &resp, 1, 50);
-        if (rc == 0) {
+        if (rc == 0)
+        {
             if (resp == 'C') break;
             if (resp == CAN) return ERR;
             continue;
         }
-        else if (rc < 0) {
+        else if (rc < 0)
+        {
             tio_error_print("Read sync from serial failed");
             return ERR;
         }
@@ -222,7 +247,8 @@ static int xmodem(int sio, const void *data, size_t len)
     packet.seq  = 1;
     packet.type = SOH;
 
-    while (len) {
+    while (len)
+    {
         size_t  sz, z = 0;
         char   *from, status;
 
@@ -238,11 +264,14 @@ static int xmodem(int sio, const void *data, size_t len)
         /* Send packet */
         from = (char *) &packet;
         sz =  sizeof(packet);
-        while (sz) {
+        while (sz)
+        {
             if (key_hit)
                 return ERR;
-            if ((rc = write(sio, from, sz)) < 0 ) {
+            if ((rc = write(sio, from, sz)) < 0 )
-                if (errno ==  EWOULDBLOCK) {
+            {
+                if (errno ==  EWOULDBLOCK)
+                {
                     usleep(1000);
                     continue;
                 }
@@ -257,30 +286,36 @@ static int xmodem(int sio, const void *data, size_t len)
         resp = 0;
 
         /* Read receiver response, timeout 1 s */
-        for(int n=0; n < 20; n++) {
+        for (int n = 0; n < 20; n++)
+        {
             if (key_hit)
                 return ERR;
             rc = read_poll(sio, &resp, 1, 50);
-            if (rc < 0) {
+            if (rc < 0)
+            {
                 tio_error_print("Read ack/nak from serial failed");
                 return ERR;
-            } else if(rc > 0) {
+            }
+            else if (rc > 0)
+            {
                 break;
             }
         }
 
         /* Update "progress bar" */
-        switch (resp) {
+        switch (resp)
-        case NAK: status = 'N'; break;
+        {
-        case ACK: status = '.'; break;
+            case NAK: status = 'N'; break;
-        case 'C': status = 'C'; break;
+            case ACK: status = '.'; break;
-        case CAN: status = '!'; return ERR;
+            case 'C': status = 'C'; break;
-        default:  status = '?';
+            case CAN: status = '!'; return ERR;
+            default:  status = '?';
         }
         write(STDOUT_FILENO, &status, 1);
 
         /* Move to next block after ACK */
-        if (resp == ACK) {
+        if (resp == ACK)
+        {
             packet.seq++;
             len -= z;
             buf += z;
@@ -288,23 +323,29 @@ static int xmodem(int sio, const void *data, size_t len)
     }
 
     /* Send EOT at 1 Hz until ACK or CAN received */
-    while (1) {
+    while (true)
+    {
         if (key_hit)
             return ERR;
-        if (write(sio, EOT_STR, 1) < 0) {
+        if (write(sio, EOT_STR, 1) < 0)
+        {
             tio_error_print("Write EOT to serial failed");
             return ERR;
         }
         write(STDOUT_FILENO, "|", 1);
         /* 1s timeout */
         rc = read_poll(sio, &resp, 1, 1000);
-        if (rc < 0) {
+        if (rc < 0)
+        {
             tio_error_print("Read from serial failed");
             return ERR;
-        } else if(rc == 0) {
+        }
+        else if (rc == 0)
+        {
             continue;
         }
-        if (resp == ACK || resp == CAN) {
+        if (resp == ACK || resp == CAN)
+        {
             write(STDOUT_FILENO, "\r\n", 2);
             return (resp == ACK) ? OK : ERR;
         }
@@ -325,8 +366,10 @@ int start_receive(int sio)
            seconds.  If nothing is received in that time then return false to indicate
            that the transfer did not start. */
         rc = write(sio, "C", 1);
-        if (rc < 0) {
+        if (rc < 0)
-            if (errno ==  EWOULDBLOCK) {
+        {
+            if (errno ==  EWOULDBLOCK)
+            {
                 usleep(1000);
                 continue;
             }
@@ -385,19 +428,25 @@ int receive_packet(int sio, struct xpacket packet, int fd)
 
     /* Read seq bytes*/
     rc = read_poll(sio, &rxSeq1, 1, 3000);
-    if (rc == 0) {
+    if (rc == 0)
+    {
         tio_error_print("Timeout waiting for first seq byte");
         return ERR;
-    } else if (rc < 0) {
+    }
-        tio_error_print("Error reading first seq byte")
+    else if (rc < 0)
+    {
+        tio_error_print("Error reading first seq byte");
         return ERR_FATAL;
     }
     rc = read_poll(sio, &rxSeq2, 1, 3000);
-    if (rc == 0) {
+    if (rc == 0)
+    {
         tio_error_print("Timeout waiting for second seq byte");
         return ERR;
-    } else if (rc < 0) {
+    }
-        tio_error_print("Error reading second seq byte")
+    else if (rc < 0)
+    {
+        tio_error_print("Error reading second seq byte");
         return ERR_FATAL;
     }
     if (key_hit)
@@ -412,15 +461,19 @@ int receive_packet(int sio, struct xpacket packet, int fd)
         {
             tio_error_print("Timeout waiting for next packet char");
             rc = write(sio, CAN_STR, 1);
-            if (rc < 0) {
+            if (rc < 0)
+            {
                 tio_error_print("Write cancel packet to serial failed");
                 return ERR_FATAL;
             }
             return ERR;
-        } else if (rc < 0) {
+        }
-            tio_error_print("Error reading next packet char")
+        else if (rc < 0)
+        {
+            tio_error_print("Error reading next packet char");
             rc = write(sio, CAN_STR, 1);
-            if (rc < 0) {
+            if (rc < 0)
+            {
                 tio_error_print("Write cancel packet to serial failed");
             }
             return ERR_FATAL;
@@ -433,11 +486,14 @@ int receive_packet(int sio, struct xpacket packet, int fd)
 
     /* Read CRC */
     rc = read_poll(sio, &resp, 1, 3000);
-    if (rc == 0) {
+    if (rc == 0)
+    {
         tio_error_print("Timeout waiting for first CRC byte");
         return ERR;
-    } else if (rc < 0) {
+    }
-        tio_error_print("Error reading first CRC byte")
+    else if (rc < 0)
+    {
+        tio_error_print("Error reading first CRC byte");
         return ERR_FATAL;
     }
 
@@ -446,11 +502,14 @@ int receive_packet(int sio, struct xpacket packet, int fd)
     rxCrc  = uresp16 << 8;
 
     rc = read_poll(sio, &resp, 1, 3000);
-    if (rc == 0) {
+    if (rc == 0)
+    {
         tio_error_print("Timeout waiting for second CRC byte");
         return ERR;
-    } else if (rc < 0) {
+    }
-        tio_error_print("Error reading second CRC byte")
+    else if (rc < 0)
+    {
+        tio_error_print("Error reading second CRC byte");
         return ERR_FATAL;
     }
 
@@ -459,7 +518,7 @@ int receive_packet(int sio, struct xpacket packet, int fd)
     rxCrc |= uresp16;
 
     if (key_hit)
-            return USER_CAN;
+        return USER_CAN;
 
     /* At this point in the code, there should not be anything in the receive buffer
     because the sender has just sent a complete packet and is waiting on a response. */
@@ -469,7 +528,8 @@ int receive_packet(int sio, struct xpacket packet, int fd)
         tio_error_print("%s", strerror(errno));
         tio_error_print("Poll check error after packet finish");
         rc = write(sio, CAN_STR, 1);
-        if (rc < 0) {
+        if (rc < 0)
+        {
             tio_error_print("Write cancel packet to serial failed");
         }
         return ERR_FATAL;
@@ -494,7 +554,8 @@ int receive_packet(int sio, struct xpacket packet, int fd)
     {
         /* Resend of previously processed packet. */
         rc = write(sio, ACK_STR, 1);
-        if (rc < 0) {
+        if (rc < 0)
+        {
             tio_error_print("Write acknowlegdement packet to serial failed");
             return ERR_FATAL;
         }
@@ -520,7 +581,8 @@ int receive_packet(int sio, struct xpacket packet, int fd)
         {
             tio_error_print("Problem writing to file");
             rc = write(sio, CAN_STR, 1);
-            if (rc < 0) {
+            if (rc < 0)
+            {
                 tio_error_print("Write cancel packet to serial failed");
             }
             return ERR_FATAL;
@@ -545,16 +607,20 @@ int xmodem_receive(int sio, int fd)
     char status;
 
     /* Drain pending characters from serial line.*/
-    while(1) {
+    while (true)
+    {
         if (key_hit)
             return -1;
         rc = read_poll(sio, &resp, 1, 50);
-        if (rc == 0) {
+        if (rc == 0)
+        {
             if (resp == CAN) return ERR;
             break;
         }
-        else if (rc < 0) {
+        else if (rc < 0)
-            if (rc != USER_CAN) {
+        {
+            if (rc != USER_CAN)
+            {
                 tio_error_print("Read sync from serial failed");
             }
             return ERR;
@@ -571,80 +637,96 @@ int xmodem_receive(int sio, int fd)
     {
         tio_error_print("Timeout waiting for transfer to start");
         return ERR;
-    } else if (rc < 0) {
+    }
+    else if (rc < 0)
+    {
         tio_error_print("Error starting XMODEM receive");
         return ERR;
     }
 
-    while (!complete) {
+    while (!complete)
+    {
         /* Poll for 1 new byte for 3 seconds */
         rc = read_poll(sio, &resp, 1, 3000);
-        if (rc == 0) {
+        if (rc == 0)
+        {
             tio_error_print("Timeout waiting for start of next packet");
             return ERR;
-        } else if (rc < 0) {
+        }
-            tio_error_print("Error reading start of next packet")
+        else if (rc < 0)
+        {
+            tio_error_print("Error reading start of next packet");
             return ERR;
         }
         if (key_hit)
             return USER_CAN;
 
-        switch(resp)
+        switch (resp)
         {
             case SOH:
-            /* Start of a packet */
+                /* Start of a packet */
-            rc = receive_packet(sio, packet, fd);
+                rc = receive_packet(sio, packet, fd);
-            if (rc == OK) {
+                if (rc == OK)
-                packet.seq++;
+                {
-                status = '.';
+                    packet.seq++;
-            } else if (rc == ERR) {
+                    status = '.';
-                rc = write(sio, NAK_STR, 1);
+                }
-                if (rc < 0) {
+                else if (rc == ERR)
-                    tio_error_print("Writing not acknowledge packet to serial failed");
+                {
+                    rc = write(sio, NAK_STR, 1);
+                    if (rc < 0)
+                    {
+                        tio_error_print("Writing not acknowledge packet to serial failed");
+                        return ERR;
+                    }
+                    status = 'N';
+                }
+                else if (rc == ERR_FATAL)
+                {
+                    tio_error_print("Receive cancelled due to fatal error");
                     return ERR;
                 }
-                status = 'N';
+                else if (rc == USER_CAN)
-            } else if (rc == ERR_FATAL) {
+                {
-                tio_error_print("Receive cancelled due to fatal error");
+                    rc = write(sio, CAN_STR, 1);
-                return ERR;
+                    if (rc < 0)
-            } else if (rc == USER_CAN) {
+                    {
-                rc = write(sio, CAN_STR, 1);
+                        tio_error_print("Writing cancel to serial failed");
-                if (rc < 0) {
+                        return ERR;
-                    tio_error_print("Writing cancel to serial failed");
+                    }
-                    return ERR;
+                    return USER_CAN;
                 }
-                return USER_CAN;
+                else if (rc == RX_IGNORE)
-            } else if (rc == RX_IGNORE) {
+                {
-                status = ':';
+                    status = ':';
-            }
+                }
-            break;
+                break;
 
             case EOT:
-            /* End of Transfer */
+                /* End of Transfer */
-            rc = write(sio, ACK_STR, 1);
+                rc = write(sio, ACK_STR, 1);
-            if (rc < 0)
+                if (rc < 0)
-            {
+                {
-                tio_error_print("Write acknowlegdement packet to serial failed");
+                    tio_error_print("Write acknowlegdement packet to serial failed");
-                return ERR;
+                    return ERR;
-            }
+                }
-            complete = true;
+                complete = true;
-            status = '\0';
+                status = '\0';
-            write(STDOUT_FILENO, "|\r\n", 3);
+                write(STDOUT_FILENO, "|\r\n", 3);
-            break;
+                break;
 
             case CAN:
-            /* Cancel from sender */
+                /* Cancel from sender */
-            tio_error_print("Transmission cancelled from sender");
+                tio_error_print("Transmission cancelled from sender");
-            return ERR;
+                return ERR;
-            break;
+                break;
 
             default:
-            tio_error_print("Unexpected character received waiting for next packet");
+                tio_error_print("Unexpected character received waiting for next packet");
-            return ERR;
+                return ERR;
-            break;
+                break;
         }
 
-
         /* Update "progress bar" */
         write(STDOUT_FILENO, &status, 1);
     }
@@ -660,14 +742,16 @@ int xymodem_send(int sio, const char *filename, modem_mode_t mode)
 
     /* Open file, map into memory */
     fd = open(filename, O_RDONLY);
-    if (fd < 0) {
+    if (fd < 0)
+    {
         tio_error_print("Could not open file");
         return ERR;
     }
     fstat(fd, &stat);
     len = stat.st_size;
     buf = mmap(NULL, len, PROT_READ, MAP_PRIVATE, fd, 0);
-    if (!buf) {
+    if (!buf)
+    {
         close(fd);
         tio_error_print("Could not mmap file");
         return ERR;
@@ -675,15 +759,19 @@ int xymodem_send(int sio, const char *filename, modem_mode_t mode)
 
     /* Do transfer */
     key_hit = 0;
-    if (mode == XMODEM_1K) {
+    if (mode == XMODEM_1K)
+    {
         rc = xmodem_1k(sio, buf, len, 1);
     }
-    else if (mode == XMODEM_CRC) {
+    else if (mode == XMODEM_CRC)
+    {
         rc = xmodem(sio, buf, len);
     }
-    else {
+    else
+    {
         /* Ymodem: hdr + file + fin */
-        while(1) {
+        while (true)
+        {
             char hdr[1024], *p;
 
             rc = -1;
@@ -694,7 +782,7 @@ int xymodem_send(int sio, const char *filename, modem_mode_t mode)
             if (xmodem_1k(sio, hdr, p - hdr, 0) < 0) break; /* hdr with metadata */
             if (xmodem_1k(sio, buf, len,     1) < 0) break; /* xmodem file */
             if (xmodem_1k(sio, "",  1,       0) < 0) break; /* empty hdr = fin */
-            rc = 0;                               break;
+            rc = 0;                                  break;
         }
     }
     key_hit = 0xff;
@@ -712,21 +800,25 @@ int xymodem_receive(int sio, const char *filename, modem_mode_t mode)
 
     /* Create new file */
     fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0664);
-    if (fd < 0) {
+    if (fd < 0)
+    {
         tio_error_print("Could not open file");
         return ERR;
     }
 
     /* Do transfer */
     key_hit = 0;
-    if (mode == XMODEM_1K) {
+    if (mode == XMODEM_1K)
+    {
         tio_error_print("Not supported");
         rc = -1;
     }
-    else if (mode == XMODEM_CRC) {
+    else if (mode == XMODEM_CRC)
+    {
         rc = xmodem_receive(sio, fd);
     }
-    else {
+    else
+    {
         tio_error_print("Not supported");
         rc = -1;
     }

src/xymodem.h

@@ -21,7 +21,8 @@
 
 #pragma once
 
-typedef enum {
+typedef enum
+{
     XMODEM_1K,
     XMODEM_CRC,
     YMODEM,
@@ -30,5 +31,4 @@ typedef enum {
 extern char key_hit;
 
 int xymodem_send(int sio, const char *filename, modem_mode_t mode);
-
 int xymodem_receive(int sio, const char *filename, modem_mode_t mode);