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libc: Implement fileno()

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apio 2022-10-15 10:28:52 +02:00
parent d0d6557e99
commit c77e752a82
2 changed files with 8 additions and 0 deletions
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3
libs/libc/include/stdio.h
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@ -40,6 +40,9 @@ extern "C"
/* Returns a new file associated with the file descriptor fd. */ /* Returns a new file associated with the file descriptor fd. */
FILE* fdopen(int fd, const char* mode); FILE* fdopen(int fd, const char* mode);
/* Returns the file descriptor associated with the file stream. */
int fileno(FILE* stream);
/* Writes formatted output according to the string format to the file stream. */ /* Writes formatted output according to the string format to the file stream. */
int fprintf(FILE* stream, const char* format, ...); int fprintf(FILE* stream, const char* format, ...);

5
libs/libc/src/file.cpp
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@ -53,6 +53,11 @@ extern "C"
return stream; return stream;
} }
int fileno(FILE* stream)
{
return stream->f_fd;
}
size_t fread(void* buf, size_t size, size_t nmemb, FILE* stream) size_t fread(void* buf, size_t size, size_t nmemb, FILE* stream)
{ {
ssize_t status = read(stream->f_fd, buf, size * nmemb); ssize_t status = read(stream->f_fd, buf, size * nmemb);