89 lines
1.9 KiB
C++
89 lines
1.9 KiB
C++
#define _LUNA_SYSTEM_ERROR_EXTENSIONS
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#include <bits/errno-return.h>
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#include <luna/Format.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/syscall.h>
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#include <unistd.h>
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FILE* stderr = nullptr;
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extern "C"
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{
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int console_write(const char* str, size_t size)
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{
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long rc = syscall(SYS_console_write, str, size);
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__errno_return(rc, int);
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}
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int vsnprintf(char* buf, size_t max, const char* format, va_list ap)
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{
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return (int)vstring_format(buf, max, format, ap);
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}
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int snprintf(char* buf, size_t max, const char* format, ...)
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{
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va_list ap;
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va_start(ap, format);
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int rc = vsnprintf(buf, max, format, ap);
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va_end(ap);
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return rc;
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}
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int vsprintf(char* buf, const char* format, va_list ap)
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{
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return vsnprintf(buf, (size_t)-1, format, ap);
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}
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int sprintf(char* buf, const char* format, ...)
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{
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va_list ap;
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va_start(ap, format);
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int rc = vsnprintf(buf, (size_t)-1, format, ap);
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va_end(ap);
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return rc;
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}
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int printf(const char* format, ...)
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{
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va_list ap;
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va_start(ap, format);
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int rc = (int)pure_cstyle_format(
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format, [](char c, void*) { console_write(&c, 1); }, nullptr, ap);
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va_end(ap);
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return rc;
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}
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int puts(const char* s)
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{
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if (console_write(s, strlen(s)) < 0) return -1;
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if (console_write("\n", 1) < 0) return -1;
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return 0;
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}
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void perror(const char* s)
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{
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// FIXME: Output to stderr when available.
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int err = errno;
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if (s && *s) printf("%s: ", s);
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printf("%s\n", strerror(err));
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}
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}
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void debug_log_impl(const char* format, va_list ap)
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{
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pure_cstyle_format(
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format, [](char c, void*) { console_write(&c, 1); }, nullptr, ap);
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console_write("\n", 1);
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}
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