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cpu: native: Add [v]fprintf to syscalls

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External packages that may use fprintf(stderr, ...) for logging will
link directly to the libc version of it, and for some reason that
results in the application crashing.
This commit is contained in:
Iván Briano 2016-06-03 16:00:26 -03:00
parent 98949f5cb4
commit 6846b4ebdd
1 changed files with 19 additions and 7 deletions
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26
cpu/native/syscalls.c
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@ -289,21 +289,33 @@ int printf(const char *format, ...)
{
int r;
va_list argp;
char *m;
va_start(argp, format);
if ((m = make_message(format, argp)) == NULL) {
err(EXIT_FAILURE, "malloc");
}
r = _native_write(STDOUT_FILENO, m, strlen(m));
r = vfprintf(stdout, format, argp);
va_end(argp);
free(m);
return r;
}
int vprintf(const char *format, va_list argp)
{
return vfprintf(stdout, format, argp);
}
int fprintf(FILE *fp, const char *format, ...)
{
int r;
va_list argp;
va_start(argp, format);
r = vfprintf(fp, format, argp);
va_end(argp);
return r;
}
int vfprintf(FILE *fp, const char *format, va_list argp)
{
int r;
char *m;
@ -311,7 +323,7 @@ int vprintf(const char *format, va_list argp)
if ((m = make_message(format, argp)) == NULL) {
err(EXIT_FAILURE, "malloc");
}
r = _native_write(STDOUT_FILENO, m, strlen(m));
r = _native_write(fileno(fp), m, strlen(m));
free(m);
return r;