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hush: factor out %jobspec parsing

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2016-11-07 20:06:40 +01:00
parent 5d5a611df2
commit 4e1c8b4f6a
1 changed files with 22 additions and 11 deletions
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33
shell/hush.c
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@ -9226,10 +9226,28 @@ static int FAST_FUNC builtin_type(char **argv)
}
#if ENABLE_HUSH_JOB
static struct pipe *parse_jobspec(const char *str)
{
struct pipe *pi;
int jobnum;
if (sscanf(str, "%%%d", &jobnum) != 1) {
bb_error_msg("bad argument '%s'", str);
return NULL;
}
for (pi = G.job_list; pi; pi = pi->next) {
if (pi->jobid == jobnum) {
return pi;
}
}
bb_error_msg("%d: no such job", jobnum);
return NULL;
}
/* built-in 'fg' and 'bg' handler */
static int FAST_FUNC builtin_fg_bg(char **argv)
{
int i, jobnum;
int i;
struct pipe *pi;
if (!G_interactive_fd)
@ -9245,17 +9263,10 @@ static int FAST_FUNC builtin_fg_bg(char **argv)
bb_error_msg("%s: no current job", argv[0]);
return EXIT_FAILURE;
}
if (sscanf(argv[1], "%%%d", &jobnum) != 1) {
bb_error_msg("%s: bad argument '%s'", argv[0], argv[1]);
pi = parse_jobspec(argv[1]);
if (!pi)
return EXIT_FAILURE;
}
for (pi = G.job_list; pi; pi = pi->next) {
if (pi->jobid == jobnum) {
goto found;
}
}
bb_error_msg("%s: %d: no such job", argv[0], jobnum);
return EXIT_FAILURE;
found:
/* TODO: bash prints a string representation
* of job being foregrounded (like "sleep 1 | cat") */