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| author | Denys Vlasenko | 2017-08-09 13:52:36 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2017-08-09 13:52:36 +0200 |
| commit | 1f41c885fcafc67c9e957b74ab9d223e09ff949a (patch) | |
| tree | 4fc87e316812afabb48a72fee3ce8edaba1c9986 | |
| parent | 3bef5d89b0c667e9fb7d1d9b44ba9b30d4d084e4 (diff) | |
| download | busybox-1f41c885fcafc67c9e957b74ab9d223e09ff949a.zip busybox-1f41c885fcafc67c9e957b74ab9d223e09ff949a.tar.gz | |
hush: implement -d DELIM option for 'read'
The POSIX standard only requires the 'read' builtin to handle '-r':
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/read.html
However, Bash introduced the option '-d <DELIM>' to override IFS for
just one invocation, and it is quite useful.
We already support this in ash, let's add it to hush, too.
function old new delta
builtin_read 263 284 +21
.rodata 163587 163589 +2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 23/0) Total: 23 bytes
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | shell/hush.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/shell/hush.c b/shell/hush.c index 8dc5316..af3b95b 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -352,6 +352,7 @@ #define BASH_SOURCE ENABLE_HUSH_BASH_COMPAT #define BASH_HOSTNAME_VAR ENABLE_HUSH_BASH_COMPAT #define BASH_TEST2 (ENABLE_HUSH_BASH_COMPAT && ENABLE_HUSH_TEST) +#define BASH_READ_D ENABLE_HUSH_BASH_COMPAT /* Build knobs */ @@ -9434,13 +9435,20 @@ static int FAST_FUNC builtin_read(char **argv) char *opt_p = NULL; char *opt_t = NULL; char *opt_u = NULL; + char *opt_d = NULL; /* optimized out if !BASH */ const char *ifs; int read_flags; /* "!": do not abort on errors. * Option string must start with "sr" to match BUILTIN_READ_xxx */ - read_flags = getopt32(argv, "!srn:p:t:u:", &opt_n, &opt_p, &opt_t, &opt_u); + read_flags = getopt32(argv, +#if BASH_READ_D + "!srn:p:t:u:d:", &opt_n, &opt_p, &opt_t, &opt_u, &opt_d +#else + "!srn:p:t:u:", &opt_n, &opt_p, &opt_t, &opt_u +#endif + ); if (read_flags == (uint32_t)-1) return EXIT_FAILURE; argv += optind; @@ -9454,7 +9462,8 @@ static int FAST_FUNC builtin_read(char **argv) opt_n, opt_p, opt_t, - opt_u + opt_u, + opt_d ); if ((uintptr_t)r == 1 && errno == EINTR) { |