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git/test-genrandom.c
Johannes Sixt a16753dc2e test-genrandom: ensure stdout is set to _O_BINARY on Windows
Commit a6ca8c62 (Set _O_BINARY as default fmode for both MinGW and MSVC)
removed the definition of _CRT_fmode from mingw.c. Before this commit,
since test-genrandom is linked against libgit.a, the MinGW process
initialization code would pick up that definition of _CRT_fmode, which was
initialized to _O_BINARY. After this commit, however, text mode is used
for std(in|out|err) because it is the default in absence of _CRT_fmode.
In order to fix that, we must use git-compat-util.h, which overrides
main() to set the mode to binary.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-21 00:36:12 -07:00

34 lines
722 B
C

/*
* Simple random data generator used to create reproducible test files.
* This is inspired from POSIX.1-2001 implementation example for rand().
* Copyright (C) 2007 by Nicolas Pitre, licensed under the GPL version 2.
*/
#include "git-compat-util.h"
int main(int argc, char *argv[])
{
unsigned long count, next = 0;
unsigned char *c;
if (argc < 2 || argc > 3) {
fprintf(stderr, "Usage: %s <seed_string> [<size>]\n", argv[0]);
return 1;
}
c = (unsigned char *) argv[1];
do {
next = next * 11 + *c;
} while (*c++);
count = (argc == 3) ? strtoul(argv[2], NULL, 0) : -1L;
while (count--) {
next = next * 1103515245 + 12345;
if (putchar((next >> 16) & 0xff) == EOF)
return -1;
}
return 0;
}