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LibC: Add ctermid

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We simply return "/dev/tty", since it always refers to the controlling
terminal of the calling process.
This commit is contained in:
SeekingBlues 2022-06-18 00:30:52 +08:00 • committed by Andreas Kling
parent 5b1e2cc65c
commit f34e69a52b
2 changed files with 11 additions and 0 deletions
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9
Userland/Libraries/LibC/stdio.cpp
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@ -1299,6 +1299,15 @@ FILE* tmpfile()
return fdopen(fd, "rw"); return fdopen(fd, "rw");
} }
// https://pubs.opengroup.org/onlinepubs/9699919799/functions/ctermid.html
char* ctermid(char* s)
{
static char tty_path[L_ctermid] = "/dev/tty";
if (s)
return strcpy(s, tty_path);
return tty_path;
}
size_t __fpending(FILE* stream) size_t __fpending(FILE* stream)
{ {
ScopedFileLock lock(stream); ScopedFileLock lock(stream);

2
Userland/Libraries/LibC/stdio.h
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@ -27,6 +27,7 @@ __BEGIN_DECLS
#define _IOLBF 1 #define _IOLBF 1
#define _IONBF 2 #define _IONBF 2
#define L_ctermid 9
#define L_tmpnam 256 #define L_tmpnam 256
#define P_tmpdir "/tmp" #define P_tmpdir "/tmp"
@ -99,5 +100,6 @@ FILE* tmpfile(void);
char* tmpnam(char*); char* tmpnam(char*);
FILE* popen(char const* command, char const* type); FILE* popen(char const* command, char const* type);
int pclose(FILE*); int pclose(FILE*);
char* ctermid(char* s);
__END_DECLS __END_DECLS