* Added a stupid PRNG to streamcat and fdcat.

* Do not use sed in the testsuite, because of OS X.
This commit is contained in:
Sam Hocevar
2007-01-03 21:51:11 +00:00
committed by sam
parent a786231fb2
commit a69b8cc7ed
3 changed files with 30 additions and 12 deletions

View File

@@ -24,14 +24,22 @@
#include <stdio.h>
#include <string.h>
static inline int myrand(void)
{
static int seed = 1;
int x, y;
x = (seed + 0x12345678) << 11;
y = (seed + 0xfedcba98) >> 21;
seed = x * 1010101 + y * 343434;
return seed;
}
int main(int argc, char *argv[])
{
long int pos;
unsigned char *data;
int i, j, fd;
srand(0);
if(argc != 2)
return EXIT_FAILURE;
@@ -51,13 +59,13 @@ int main(int argc, char *argv[])
/* Read shit here and there */
for(i = 0; i < 128; i++)
{
lseek(fd, rand() % pos, SEEK_SET);
lseek(fd, myrand() % pos, SEEK_SET);
for(j = 0; j < 16; j++)
read(fd, data + lseek(fd, 0, SEEK_CUR), rand() % 4096);
read(fd, data + lseek(fd, 0, SEEK_CUR), myrand() % 4096);
#ifdef HAVE_LSEEK64
lseek64(fd, rand() % pos, SEEK_SET);
lseek64(fd, myrand() % pos, SEEK_SET);
for(j = 0; j < 16; j++)
read(fd, data + lseek(fd, 0, SEEK_CUR), rand() % 4096);
read(fd, data + lseek(fd, 0, SEEK_CUR), myrand() % 4096);
#endif
}

View File

@@ -18,6 +18,16 @@
#include <stdlib.h>
#include <string.h>
static inline int myrand(void)
{
static int seed = 1;
int x, y;
x = (seed + 0x12345678) << 11;
y = (seed + 0xfedcba98) >> 21;
seed = x * 1010101 + y * 343434;
return seed;
}
int main(int argc, char *argv[])
{
long int pos;
@@ -25,8 +35,6 @@ int main(int argc, char *argv[])
int i, j;
FILE *stream;
srand(0);
if(argc != 2)
return EXIT_FAILURE;
@@ -48,10 +56,10 @@ int main(int argc, char *argv[])
for(i = 0; i < 128; i++)
{
long int now;
fseek(stream, rand() % pos, SEEK_SET);
fseek(stream, myrand() % pos, SEEK_SET);
for(j = 0; j < 16; j++)
fread(data + ftell(stream), rand() % 4096, 1, stream);
fseek(stream, rand() % pos, SEEK_SET);
fread(data + ftell(stream), myrand() % 4096, 1, stream);
fseek(stream, myrand() % pos, SEEK_SET);
now = ftell(stream);
for(j = 0; j < 16; j++)
data[now + j] = getc(stream);

View File

@@ -69,7 +69,9 @@ for file in /tmp/zzuf-zero-$$ /tmp/zzuf-text-$$ /tmp/zzuf-random-$$; do
# We don't include grep in the testsuite because it puts a newline
# at the end of its input if it was not there initially.
#check $seed $r "grep -- -a \\'\\' $file" "grep -a"
check $seed $r "-- sed -e n $file" "sed n"
# We don't include sed in the testsuite because on OS X in also
# puts a newline. Crap.
#check $seed $r "-- sed -e n $file" "sed n"
check $seed $r "dd bs=65536 if=$file" "dd(bs=65536)"
check $seed $r "dd bs=1111 if=$file" "dd(bs=1111)"
check $seed $r "dd bs=1024 if=$file" "dd(bs=1024)"