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feat: utf8 hostname and ellipsis

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javalsai 2025-07-04 04:40:10 +02:00
parent 9084dfdcda
commit 5a6471dd00
Signed by: javalsai
SSH Key Fingerprint: SHA256:3G83yKhBUWVABVX/vPWH88xnK4+ptMtHkZGCRXD4Mk8
1 changed files with 29 additions and 14 deletions
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43
src/ui.c
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@ -1,6 +1,7 @@
// i'm sorry
// really sorry
#include <asm-generic/errno.h>
#include <errno.h>
#include <pwd.h>
#include <signal.h>
@ -107,6 +108,31 @@ static char* fmt_time(const char* fmt) {
}
}
char* trunc_gethostname(const size_t MAXSIZE, const char* const ELLIPSIS) {
size_t alloc_size = MAXSIZE + 1;
char* buf = malloc(alloc_size);
if (!buf) return NULL;
while (true) {
if (gethostname(buf, alloc_size) == 0) return buf;
if (errno == ENAMETOOLONG) {
buf[alloc_size] = '\0';
if (utf8len(buf) > MAXSIZE) {
strcpy(&buf[MAXSIZE - utf8len(ELLIPSIS)], ELLIPSIS);
return buf;
}
alloc_size *= 2;
char* nbuf = realloc(buf, alloc_size);
if (!nbuf) goto fail;
buf = nbuf;
} else
goto fail;
}
fail:
free(buf);
return NULL;
}
void ui_update_cursor_focus() {
u_char line = box_start.y;
u_char col = box_start.x + VALUES_COL;
@ -163,7 +189,6 @@ void ui_update_ofield(struct opts_field* NNULLABLE self) {
ui_update_field(input);
}
static char* unknown_str = "unknown";
void scratch_print_ui() {
ioctl(STDOUT_FILENO, TIOCGWINSZ, &window);
box_start = (struct uint_point){
@ -323,21 +348,11 @@ u_char get_render_pos_offset(struct opts_field* self, u_char maxlen) {
}
#define HOSTNAME_SIZE (VALUES_COL - VALUES_SEPR - BOX_HMARGIN - 1)
// TODO: make hostname utf8 compatible
void print_head() {
// hostname doesn't just change on runtime
static bool hostname_set = false;
static char hostname[HOSTNAME_SIZE + 1];
if (!hostname_set) {
strcpy(hostname, unknown_str);
int ret = gethostname(hostname, HOSTNAME_SIZE);
if (hostname[HOSTNAME_SIZE] != '\0' || ret < 0) {
// assume any type of truncation
hostname[HOSTNAME_SIZE] = '\0';
hostname[HOSTNAME_SIZE - 1] = '_'; // "ellipsis"
}
hostname_set = true;
}
static char* hostname = NULL;
if (!hostname) hostname = trunc_gethostname(HOSTNAME_SIZE, "...");
if (!hostname) hostname = "unknown";
clean_line(box_start, HEAD_ROW);
// put hostname