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very small size reduce for nohup applet

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This commit is contained in:
"Vladimir N. Oleynik" 2005-09-22 13:26:23 +00:00
parent 24cca8d958
commit 1f0ac23c20
1 changed files with 6 additions and 9 deletions
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15
coreutils/nohup.c
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@ -40,12 +40,12 @@ static inline int set_cloexec_flag (int desc)
#define set_cloexec_flag(desc) (0)
#endif
static int fd_reopen (int desired_fd, char const *file, int flags, mode_t mode)
static int fd_reopen (int desired_fd, char const *file, int flags)
{
int fd;
close (desired_fd);
fd = open (file, flags, mode);
fd = open (file, flags | O_WRONLY, S_IRUSR | S_IWUSR);
if (fd == desired_fd || fd < 0)
return fd;
else {
@ -115,27 +115,25 @@ int nohup_main (int argc, char **argv)
Note that it is deliberately opened for *writing*,
to ensure any read evokes an error. */
if (isatty (STDIN_FILENO))
fd_reopen (STDIN_FILENO, "/dev/null", O_WRONLY, 0);
fd_reopen (STDIN_FILENO, "/dev/null", 0);
/* If standard output is a tty, redirect it (appending) to a file.
First try nohup.out, then $HOME/nohup.out. */
if (isatty (STDOUT_FILENO)) {
char *in_home = NULL;
char const *file = "nohup.out";
int fd = fd_reopen (STDOUT_FILENO, file,
O_CREAT | O_WRONLY | O_APPEND, S_IRUSR | S_IWUSR);
int fd = fd_reopen (STDOUT_FILENO, file, O_CREAT | O_APPEND);
if (fd < 0) {
if ((in_home = getenv ("HOME")) != NULL) {
in_home = concat_path_file(in_home, file);
fd = fd_reopen (STDOUT_FILENO, in_home,
O_CREAT | O_WRONLY | O_APPEND, S_IRUSR | S_IWUSR);
fd = fd_reopen (STDOUT_FILENO, in_home, O_CREAT | O_APPEND);
}
if (fd < 0) {
bb_perror_msg("failed to open '%s'", file);
if (in_home)
bb_perror_msg("failed to open '%s'",in_home);
exit (NOHUP_FAILURE);
return (NOHUP_FAILURE);
}
file = in_home;
}
@ -185,4 +183,3 @@ int nohup_main (int argc, char **argv)
return (errno == ENOENT ? EXIT_ENOENT : EXIT_CANNOT_INVOKE);
}
}