README.md

gcc ssh-askpass.c -o ssh-askpass.exe -Os -flto -s -ffunction-sections -fdata-sections -Wl,--gc-sections -nostartfiles -fno-ident -ffreestanding -nostdlib

ssh-askpass.c

#include <stdio.h>
#include <stdlib.h>

int main() {
    const char *filePath = getenv("SSH_ASKPASS_FILE");
    if (!filePath) return 1;

    FILE *file = fopen(filePath, "rb");
    if (!file) return 1;

    char buffer[256];
    if (!fgets(buffer, sizeof(buffer), file)) {
        fclose(file);
        return 1;
    }
    fclose(file);

    // Trim newlines
    for (char *p = buffer; *p; ++p)
        if (*p == '\n' || *p == '\r')
            *p = '\0';

    puts(buffer);
    return 0;
}