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This patch

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- eliminates the need to have a buffer and strcpy to it
- makes freeramdisk complain if it's given more than one argument

Regards,
Pavel Roskin
This commit is contained in:
Eric Andersen 2000-06-04 05:08:29 +00:00
parent 832000f7f3
commit ef4268efa7
3 changed files with 9 additions and 16 deletions
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1
Changelog
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@ -49,6 +49,7 @@
to Pavel Roskin.
* Fixed all fatalError() calls lacking a "\n", thanks to Pavel Roskin.
* Fixed a segfault in yes when no args were given -- Pavel Roskin.
* Simplified freeramdisk and added argument checking -- Pavel Roskin.
* More doc updates

12
freeramdisk.c
View File

@ -43,21 +43,17 @@ static const char freeramdisk_usage[] =
extern int
freeramdisk_main(int argc, char **argv)
{
char rname[256] = "/dev/ram";
int f;
if (argc < 2 || ( argv[1] && *argv[1] == '-')) {
if (argc != 2 || *argv[1] == '-') {
usage(freeramdisk_usage);
}
if (argc >1)
strcpy(rname, argv[1]);
if ((f = open(rname, O_RDWR)) == -1) {
fatalError( "freeramdisk: cannot open %s: %s\n", rname, strerror(errno));
if ((f = open(argv[1], O_RDWR)) == -1) {
fatalError( "freeramdisk: cannot open %s: %s\n", argv[1], strerror(errno));
}
if (ioctl(f, BLKFLSBUF) < 0) {
fatalError( "freeramdisk: failed ioctl on %s: %s\n", rname, strerror(errno));
fatalError( "freeramdisk: failed ioctl on %s: %s\n", argv[1], strerror(errno));
}
/* Don't bother closing. Exit does
* that, so we can save a few bytes */

12
util-linux/freeramdisk.c
View File

@ -43,21 +43,17 @@ static const char freeramdisk_usage[] =
extern int
freeramdisk_main(int argc, char **argv)
{
char rname[256] = "/dev/ram";
int f;
if (argc < 2 || ( argv[1] && *argv[1] == '-')) {
if (argc != 2 || *argv[1] == '-') {
usage(freeramdisk_usage);
}
if (argc >1)
strcpy(rname, argv[1]);
if ((f = open(rname, O_RDWR)) == -1) {
fatalError( "freeramdisk: cannot open %s: %s\n", rname, strerror(errno));
if ((f = open(argv[1], O_RDWR)) == -1) {
fatalError( "freeramdisk: cannot open %s: %s\n", argv[1], strerror(errno));
}
if (ioctl(f, BLKFLSBUF) < 0) {
fatalError( "freeramdisk: failed ioctl on %s: %s\n", rname, strerror(errno));
fatalError( "freeramdisk: failed ioctl on %s: %s\n", argv[1], strerror(errno));
}
/* Don't bother closing. Exit does
* that, so we can save a few bytes */