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libbb: add skip_dev_pfx()

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2010-04-06 18:50:05 +02:00
parent 87fb72032e
commit f8d8aa1cea
7 changed files with 17 additions and 21 deletions
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8
e2fsprogs/fsck.c
View File

@ -169,12 +169,12 @@ static char *base_device(const char *device)
const char *disk;
int len;
#endif
cp = str = xstrdup(device);
str = xstrdup(device);
/* Skip over /dev/; if it's not present, give up. */
if (strncmp(cp, "/dev/", 5) != 0)
/* Skip over "/dev/"; if it's not present, give up */
cp = skip_dev_pfx(str);
if (cp == str)
goto errout;
cp += 5;
/*
* For md devices, we treat them all as if they were all

2
include/libbb.h
View File

@ -263,6 +263,8 @@ extern void chomp(char *s) FAST_FUNC;
extern void trim(char *s) FAST_FUNC;
extern char *skip_whitespace(const char *) FAST_FUNC;
extern char *skip_non_whitespace(const char *) FAST_FUNC;
extern char *skip_dev_pfx(const char *tty_name) FAST_FUNC;
extern char *strrstr(const char *haystack, const char *needle) FAST_FUNC;
//TODO: supply a pointer to char[11] buffer (avoid statics)?

4
init/init.c
View File

@ -568,9 +568,7 @@ static void parse_inittab(void)
goto bad_entry;
/* turn .*TTY -> /dev/TTY */
if (tty[0]) {
if (strncmp(tty, "/dev/", 5) == 0)
tty += 5;
tty = concat_path_file("/dev/", tty);
tty = concat_path_file("/dev/", skip_dev_pfx(tty));
}
new_init_action(1 << action, token[3], tty);
if (tty[0])

7
libbb/skip_whitespace.c
View File

@ -30,3 +30,10 @@ char* FAST_FUNC skip_non_whitespace(const char *s)
return (char *) s;
}
char* FAST_FUNC skip_dev_pfx(const char *tty_name)
{
if (strncmp(tty_name, "/dev/", 5) == 0)
tty_name += 5;
return (char*)tty_name;
}

8
libbb/utmp.c
View File

@ -15,14 +15,6 @@ static void touch(const char *filename)
close(open(filename, O_WRONLY | O_CREAT, 0664));
}
// TODO: move to libbb
static const char* skip_dev_pfx(const char *tty_name)
{
if (strncmp(tty_name, "/dev/", 5) == 0)
tty_name += 5;
return tty_name;
}
void FAST_FUNC write_new_utmp(pid_t pid, int new_type, const char *tty_name, const char *username, const char *hostname)
{
struct utmp utent;

4
loginutils/login.c
View File

@ -249,9 +249,7 @@ int login_main(int argc UNUSED_PARAM, char **argv)
full_tty = xmalloc_ttyname(STDIN_FILENO);
if (!full_tty)
full_tty = xstrdup("UNKNOWN");
short_tty = full_tty;
if (strncmp(full_tty, "/dev/", 5) == 0)
short_tty += 5;
short_tty = skip_dev_pfx(full_tty);
if (opt_host) {
fromhost = xasprintf(" on '%s' from '%s'", short_tty, opt_host);

5
util-linux/rtcwake.c
View File

@ -35,9 +35,8 @@ static NOINLINE bool may_wakeup(const char *rtcname)
ssize_t ret;
char buf[128];
/* strip the '/dev/' from the rtcname here */
if (!strncmp(rtcname, "/dev/", 5))
rtcname += 5;
/* strip "/dev/" from the rtcname here */
rtcname = skip_dev_pfx(rtcname);
snprintf(buf, sizeof(buf), SYS_RTC_PATH, rtcname);
ret = open_read_close(buf, buf, sizeof(buf));