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* Added a small app that's able to truncate files - for testing purposes

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24570 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2008-03-25 09:44:38 +00:00
parent 070557e510
commit b11e554156
2 changed files with 56 additions and 0 deletions
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4
src/tests/system/libroot/posix/Jamfile
View File

@ -24,6 +24,10 @@ SimpleTest sigsetjmp_test
: sigsetjmp_test.c
;
SimpleTest truncate
: truncate.cpp
;
SimpleTest init_rld_after_fork_test
: init_rld_after_fork_test.cpp
;

52
src/tests/system/libroot/posix/truncate.cpp Normal file
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@ -0,0 +1,52 @@
/*
* Copyright 2008, Axel Dörfler, axeld@pinc-software.de.
* Distributed under the terms of the MIT License.
*/
#include <ctype.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>
extern const char *__progname;
int
main(int argc, char **argv)
{
if (argc < 3) {
fprintf(stderr, "usage: %s <file> <size>\n", __progname);
return 1;
}
struct stat st;
if (stat(argv[1], &st) != 0) {
fprintf(stderr, "%s: cannot stat file \"%s\": %s\n", __progname,
argv[1], strerror(errno));
return 1;
}
off_t newSize = strtoll(argv[2], NULL, 0);
printf("size %10Ld\n", st.st_size);
printf("wanted %10Ld\n", newSize);
printf("Do you really want to truncate the file [y/N]? ");
fflush(stdout);
char yes[10];
if (fgets(yes, sizeof(yes), stdin) == NULL || tolower(yes[0]) != 'y')
return 0;
if (truncate(argv[1], newSize) != 0) {
fprintf(stderr, "%s: cannot truncate file \"%s\": %s\n", __progname,
argv[1], strerror(errno));
return 1;
}
return 0;
}