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#define _GNU_SOURCE /* fgets_unlocked */
#include <assert.h> /* assert */
#include <dlfcn.h> /* dlsym, RTLD_NEXT */
#include <errno.h> /* errno, ENOSYS */
#include <limits.h> /* PATH_MAX */
#include <stdarg.h> /* va_list, va_start, va_end */
#include <stddef.h> /* NULL, size_t */
#include <stdio.h> /* feof, fgets, fopen, fread, puts, v*printf */
#include <string.h> /* strcmp */
int __vasprintf_chk(char **strp, int flag, const char *format, va_list ap);
int __vfprintf_chk(FILE *stream, int flag, const char *format, va_list ap);
int __vsnprintf_chk(char *s, size_t n, int flag, size_t slen,
const char *format, va_list ap);
int __vsprintf_chk(char *s, int flag, size_t slen, const char *format,
va_list ap);
/**
* Test end-of-file indicator on a stream.
*
* LSB 5.0: LSB-Core-generic/baselib--io-feof-3.html
*/
int _IO_feof(FILE *stream)
{
return feof(stream);
}
/**
* Put a string on standard output.
*
* LSB 5.0: LSB-Core-generic/baselib--io-puts-3.html
*/
int _IO_puts(const char *c)
{
return puts(c);
}
/**
* Print to allocated string, with stack checking.
*/
int __asprintf_chk(char **strp, int flag, const char *format, ...)
{
int ret;
va_list ap;
va_start(ap, format);
ret = __vasprintf_chk(strp, flag, format, ap);
va_end(ap);
return ret;
}
/**
* String input, with buffer overflow checking.
*
* LSB 5.0: LSB-Core-generic/baselib---fgets-chk-1.html
*/
char *__fgets_chk(char *s, size_t slen, int n, FILE *stream)
{
assert(s != NULL);
assert(slen >= (size_t) n);
assert(n > 0);
assert(stream != NULL);
return fgets(s, n, stream);
}
/**
* Non-locking string input, with buffer overflow checking.
*
* LSB 5.0: LSB-Core-generic/baselib---fgets-unlocked-chk-1.html
*/
char *__fgets_unlocked_chk(char *s, size_t slen, int n, FILE *stream)
{
assert(s != NULL);
assert(slen >= (size_t) n);
assert(n > 0);
assert(stream != NULL);
return fgets_unlocked(s, n, stream);
}
/**
* Open a stream.
*/
ssize_t readlink(const char *path, char *buf, size_t len);
static FILE *(*real_fopen)(const char *, const char *);
FILE *fopen(const char *restrict pathname, const char *restrict mode)
{
if (real_fopen == NULL) {
real_fopen = dlsym(RTLD_NEXT, "fopen");
if (real_fopen == NULL) {
errno = ENOSYS;
return NULL;
}
}
if (!strcmp(pathname, "/proc/self/exe")) {
char real_self[PATH_MAX];
if (readlink("/proc/self/exe", real_self, PATH_MAX) == -1) {
return NULL;
}
return real_fopen(real_self, mode);
}
return real_fopen(pathname, mode);
}
/**
* Convert formatted output, with stack checking.
*
* LSB 5.0: LSB-Core-generic/baselib---fprintf-chk-1.html
*/
int __fprintf_chk(FILE *stream, int flag, const char *format, ...)
{
int ret;
va_list ap;
va_start(ap, format);
ret = __vfprintf_chk(stream, flag, format, ap);
va_end(ap);
return ret;
}
/**
* Binary input, with stack checking.
*/
size_t __fread_chk(void *buf, size_t buflen, size_t size, size_t nitems,
FILE *stream)
{
assert(buf != NULL);
assert(size > 0);
assert(buflen / size >= nitems);
assert(stream != NULL);
return fread(buf, size, nitems, stream);
}
/**
* Format and print data, with stack checking.
*
* LSB 5.0: LSB-Core-generic/baselib---printf-chk-1.html
*/
int __printf_chk(int flag, const char *format, ...)
{
int ret;
va_list ap;
va_start(ap, format);
ret = __vfprintf_chk(stdout, flag, format, ap);
va_end(ap);
return ret;
}
/**
* Convert formatted output, with buffer overflow checking.
*
* LSB 5.0: LSB-Core-generic/baselib---snprintf-chk-1.html
*/
int __snprintf_chk(char *s, size_t n, int flag, size_t slen, const char *format,
...)
{
int ret;
va_list ap;
va_start(ap, format);
ret = __vsnprintf_chk(s, n, flag, slen, format, ap);
va_end(ap);
return ret;
}
/**
* Convert formatted output, with stack checking.
*
* LSB 5.0: LSB-Core-generic/baselib---sprintf-chk-1.html
*/
int __sprintf_chk(char *s, int flag, size_t slen, const char *format, ...)
{
int ret;
va_list ap;
va_start(ap, format);
ret = __vsprintf_chk(s, flag, slen, format, ap);
va_end(ap);
return ret;
}
/**
* Print to allocated string, with stack checking.
*/
int __vasprintf_chk(char **strp, int flag, const char *format, va_list ap)
{
assert(strp != NULL);
assert(format != NULL);
return vasprintf(strp, format, ap);
}
/**
* Convert formatted output, with stack checking.
*
* LSB 5.0: LSB-Core-generic/baselib---vfprintf-chk-1.html
*/
int __vfprintf_chk(FILE *stream, int flag, const char *format, va_list ap)
{
assert(stream != NULL);
assert(format != NULL);
return vfprintf(stream, format, ap);
}
/**
* Convert formatted output, with stack checking.
*
* LSB 5.0: LSB-Core-generic/baselib---vprintf-chk-1.html
*/
int __vprintf_chk(int flag, const char *format, va_list ap)
{
return __vfprintf_chk(stdout, flag, format, ap);
}
/**
* Convert formatted output, with stack checking.
*
* LSB 5.0: LSB-Core-generic/baselib---vsnprintf-chk-1.html
*/
int __vsnprintf_chk(char *s, size_t n, int flag, size_t slen,
const char *format, va_list ap)
{
assert(s != NULL || n == 0);
assert(slen >= n);
assert(format != NULL);
return vsnprintf(s, n, format, ap);
}
/**
* Convert formatted output, with stack checking.
*
* LSB 5.0: LSB-Core-generic/baselib---vsprintf-chk-1.html
*/
int __vsprintf_chk(char *s, int flag, size_t slen, const char *format,
va_list ap)
{
assert(s != NULL);
assert(slen > 0);
assert(format != NULL);
return vsprintf(s, format, ap);
}
/**
* Create a name for a temporary file.
*/
char *tmpnam_r(char *s)
{
if (s == NULL) {
return NULL;
}
return tmpnam(s);
}
int __vdprintf_chk (int d, int flags, const char *format, va_list ap)
{
assert(format != NULL);
return vdprintf(d, format, ap);
}
int
__dprintf_chk (int d, int flags, const char *format, ...)
{
va_list arg;
int done;
va_start(arg, format);
done = __vdprintf_chk(d, flags, format, arg);
va_end(arg);
return done;
}
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