cirno/plan9port
1
0
Fork 0
mirror of https://github.com/9fans/plan9port.git synced 2025-01-12 11:10:07 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

tail: fix reading from terminal on OpenBSD.

Browse source 
isseekable function taken from 9front commit 1c835e37 by ftrvxmtrx.
This commit is contained in:
James Cook 2024-06-22 01:46:50 +00:00
parent a2567fcac9
commit 56f760eed1
1 changed files with 8 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
src/cmd/tail.c
View file

@ -44,6 +44,7 @@ extern void trunc(Dir*, Dir**);
extern vlong tseek(vlong, int);
extern void twrite(char*, long);
extern void usage(void);
static int isseekable(int);
#define JUMP(o,p) tseek(o,p), copy()
@ -92,7 +93,7 @@ main(int argc, char **argv)
usage();
if(argc > 1 && (file=open(argv[1],0)) < 0)
fatal(argv[1]);
seekable = seek(file,0L,0) == 0;
seekable = isseekable(file);
if(!seekable && origin==END)
keep();
@ -361,3 +362,9 @@ usage(void)
fprint(2, "%s\n", umsg);
exits("usage");
}
static int
isseekable(int fd)
{
return seek(fd, 0, 2) > 0 && seek(fd, 0, 0) == 0;
}