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Replace '\0' to NUL to make it more clear that it is a NUL-terminated string.

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This commit is contained in:
René van Dorst
2026-08-25 07:55:06 +02:00
parent 5d42e8843e
commit 2ff418f80f
5 changed files with 35 additions and 34 deletions
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cmd_parser.c
+19 -19
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@@ -114,8 +114,8 @@ uint8_t cmd_compare(uint8_t start, __code uint8_t * cmd)
uint8_t b = cmd_buffer[i];
// cmd is garanteerd to be NULL-terminated.
if (c == '\0') {
if ((b == ' ') || (b == '\0')) {
if (c == NUL) {
if ((b == ' ') || (b == NUL)) {
// Match
return 1;
}
@@ -147,7 +147,7 @@ uint8_t atoi_hex(uint8_t idx)
while(1) {
c = cmd_buffer[idx];
if (c == '\0' || c == ' ') {
if (c == NUL || c == ' ') {
break;
}
@@ -263,7 +263,7 @@ uint8_t cmd_parse_port_separator(uint8_t idx) {
uint8_t c = cmd_buffer[idx];
if (c == ' ') {
ret++;
} else if (c != '\0')
} else if (c != NUL)
ret = 0;
}
return ret;
@@ -278,7 +278,7 @@ __bit cmd_is_space(uint8_t idx) {
// check if the cmd_buffer[idx] is a space or NULL.
__bit cmd_is_space_or_nul(uint8_t idx) {
uint8_t c = cmd_buffer[idx];
return c == ' ' || c == '\0';
return c == ' ' || c == NUL;
}
// returns 0 when on parser error or invalid value or no space.
@@ -304,7 +304,7 @@ uint8_t parse_ip(uint8_t idx)
idx++;
break;
}
if (ret == '\0')
if (ret == NUL)
break;
goto err;
}
@@ -483,7 +483,7 @@ void parse_vlan(void)
write_char(cmd_buffer[cmd_words_b[w] + i]);
vlan_names[vlan_ptr++] = cmd_buffer[cmd_words_b[w] + i++];
}
vlan_names[vlan_ptr++] = ' '; vlan_names[vlan_ptr] = '\0';
vlan_names[vlan_ptr++] = ' '; vlan_names[vlan_ptr] = NUL;
w++;
print_string("<\n");
}
@@ -738,11 +738,11 @@ void parse_port(void)
}
} else if (cmd_compare(2, "name")) {
uint8_t i = 0;
while ( (i < PORT_NAME_SIZE-1) && (cmd_buffer[cmd_words_b[3] + i] != '\0') ) {
while ( (i < PORT_NAME_SIZE-1) && (cmd_buffer[cmd_words_b[3] + i] != NUL) ) {
port_names[phy_settings.port][i] = cmd_buffer[cmd_words_b[3] + i];
i++;
}
port_names[phy_settings.port][i] = '\0';
port_names[phy_settings.port][i] = NUL;
print_string("\nName set to: \"");
print_string_x(port_names[phy_settings.port]);
print_string("\"\n");
@@ -1248,8 +1248,8 @@ void parse_passwd(void)
do {
c = cmd_buffer[i++];
passwd[j++] = c;
} while (c != '\0' && j < 20);
passwd[j] = '\0';
} while (c != NUL && j < 20);
passwd[j] = NUL;
return;
}
print_string("Missing password\n");
@@ -1453,7 +1453,7 @@ void cmd_tokenize(void) __banked
while(1) {
c = cmd_buffer[line_ptr];
if (c == '\0') {
if (c == NUL) {
// Store the word count
cmd_words_len = word;
break;
@@ -1658,13 +1658,13 @@ void cmd_parser(void) __banked
__xdata char *dst = hostname;
for (uint8_t hn = 0; hn < sizeof(hostname) - 1; hn++) {
uint8_t c = *hp++;
if (c == '\0' || c == '\r' || c == '\n')
if (c == NUL || c == '\r' || c == '\n')
break;
if (c < 0x20 || c > 0x7e || c == '"' || c == '\\')
c = '.';
*dst++ = c;
}
*dst = '\0';
*dst = NUL;
} else {
print_string("Error: hostname [name] - the name must not contain spaces\n");
}
@@ -1752,7 +1752,7 @@ void cmd_parser(void) __banked
uint8_t i = cmd_words_b[cmd_words_len - 1];
do {
i++;
} while(cmd_buffer[i] != '\0');
} while(cmd_buffer[i] != NUL);
// Copy last cmd-buffer to history.
cmd_history_ptr = (cmd_history_ptr + i) & CMD_HISTORY_MASK;
@@ -1800,7 +1800,7 @@ void execute_config(void) __banked
uint8_t c = 0;
do {
if (cmd_idx >= (CMD_BUF_SIZE - 1)) {
cmd_buffer[cmd_idx] = '\0';
cmd_buffer[cmd_idx] = NUL;
print_string("ERROR: Command too long: ");
print_string_x(cmd_buffer);
write_char('\n');
@@ -1809,7 +1809,7 @@ void execute_config(void) __banked
}
c = flash_buf[cfg_idx++];
if (c == 0 || c == '\n') {
cmd_buffer[cmd_idx] = '\0';
cmd_buffer[cmd_idx] = NUL;
if (cmd_idx) {
cmd_tokenize();
if (err_status != ERR_OK)
@@ -1845,7 +1845,7 @@ void execute_commands(__xdata uint8_t *p) __banked {
while (1) {
if (*p == 0 || *p == '\n' || *p == '\r') {
if (cmd_idx) {
cmd_buffer[cmd_idx] = '\0';
cmd_buffer[cmd_idx] = NUL;
cmd_tokenize();
if (err_status != ERR_OK)
return;
@@ -1858,7 +1858,7 @@ void execute_commands(__xdata uint8_t *p) __banked {
if (cmd_idx < (CMD_BUF_SIZE - 1)) {
cmd_buffer[cmd_idx++] = *p;
} else {
cmd_buffer[CMD_BUF_SIZE - 1] = '\0';
cmd_buffer[CMD_BUF_SIZE - 1] = NUL;
print_string("ERROR: Command too long: ");
print_string_x(cmd_buffer);
write_char('\n');