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file_send/receive_prepare: empty name case

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zheiling
2026-07-01 15:39:17 +03:00
parent 5564c0ac69
commit fef3b0cde6
3 changed files with 79 additions and 21 deletions
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src/components/file_p/file_p.c
+21 -10
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@@ -157,20 +157,26 @@ int32_t file_send_prepare(session *sess, char *line, server_data_t *s_d) {
char *name_begin = strchr(line, '[');
if (name_begin == NULL) {
session_send_string(sess,
"Error: can't find starting character \"[\" for the file name");
session_send_string(
sess, "Error: can't find starting character \"[\" for the file name");
clear_file_from_sess(sess);
return -4;
}
name_begin += 1;
char *name_end = strrchr(line, ']');
if (name_end == NULL) {
session_send_string(sess,
"Error: can't find ending character \"]\" for the file name");
if (name_end == NULL) {
session_send_string(
sess, "Error: can't find ending character \"]\" for the file name");
clear_file_from_sess(sess);
return -5;
}
int name_len = name_end - name_begin;
if (name_len == 0) {
session_send_string(
sess, "File name should not be empty");
clear_file_from_sess(sess);
return -6;
}
strncpy(args.name, name_begin, name_len);
args.name[name_len] = 0;
sess->file = db_get_file(&args);
@@ -217,19 +223,26 @@ int file_receive_prepare(session *sess, char *line, server_data_t *s_d) {
int perm;
char *name_begin = strchr(line, '"');
if (name_begin == NULL) {
session_send_string(sess,
"Error: can't find starting character \" for the file name");
session_send_string(
sess, "Error: can't find starting character \" for the file name");
clear_file_from_sess(sess);
return -5;
}
name_begin += 1;
char *name_end = strrchr(name_begin, '"');
if (name_end == NULL) {
session_send_string(sess, "Error: can't find ending character \" for the file name");
session_send_string(
sess, "Error: can't find ending character \" for the file name");
clear_file_from_sess(sess);
return -6;
}
int name_len = name_end - name_begin;
if (name_len == 0) {
session_send_string(
sess, "File name should not be empty");
clear_file_from_sess(sess);
return -7;
}
sscanf(name_end, "\" %zd %d", &fsize, &perm);
sess->file = malloc(sizeof(s_file_t));
sess->file->name = malloc(sizeof(char) * (name_len + 1));
@@ -299,8 +312,6 @@ int file_receive_prepare(session *sess, char *line, server_data_t *s_d) {
break;
}
mes_len = sprintf(mes, "accept");
sess->fd = file_d;
sess->file->size = fsize;