diff options
Diffstat (limited to 'shell/hush.c')
| -rw-r--r-- | shell/hush.c | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/shell/hush.c b/shell/hush.c index a56d3b2..58132ef 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -347,7 +347,7 @@ #define ERR_PTR ((void*)(long)1) -#define JOB_STATUS_FORMAT "[%d] %-22s %.40s\n" +#define JOB_STATUS_FORMAT "[%u] %-22s %.40s\n" #define _SPECIAL_VARS_STR "_*@$!?#" #define SPECIAL_VARS_STR ("_*@$!?#" + 1) @@ -563,7 +563,7 @@ struct pipe { int alive_cmds; /* number of commands running (not exited) */ int stopped_cmds; /* number of commands alive, but stopped */ #if ENABLE_HUSH_JOB - int jobid; /* job number */ + unsigned jobid; /* job number */ pid_t pgrp; /* process group ID for the job */ char *cmdtext; /* name of job */ #endif @@ -740,7 +740,7 @@ struct globals { #endif #if ENABLE_HUSH_JOB int run_list_level; - int last_jobid; + unsigned last_jobid; pid_t saved_tty_pgrp; struct pipe *job_list; # define G_saved_tty_pgrp (G.saved_tty_pgrp) @@ -7043,7 +7043,7 @@ static void insert_bg_job(struct pipe *pi) job->cmdtext = xstrdup(get_cmdtext(pi)); if (G_interactive_fd) - printf("[%d] %d %s\n", job->jobid, job->cmds[0].pid, job->cmdtext); + printf("[%u] %u %s\n", job->jobid, (unsigned)job->cmds[0].pid, job->cmdtext); G.last_jobid = job->jobid; } @@ -9264,11 +9264,21 @@ static int FAST_FUNC builtin_type(char **argv) static struct pipe *parse_jobspec(const char *str) { struct pipe *pi; - int jobnum; + unsigned jobnum; - if (sscanf(str, "%%%d", &jobnum) != 1) { - bb_error_msg("bad argument '%s'", str); - return NULL; + if (sscanf(str, "%%%u", &jobnum) != 1) { + if (str[0] != '%' + || (str[1] != '%' && str[1] != '+' && str[1] != '\0') + ) { + bb_error_msg("bad argument '%s'", str); + return NULL; + } + /* It is "%%", "%+" or "%" - current job */ + jobnum = G.last_jobid; + if (jobnum == 0) { + bb_error_msg("no current job"); + return NULL; + } } for (pi = G.job_list; pi; pi = pi->next) { if (pi->jobid == jobnum) { @@ -9622,13 +9632,15 @@ static int FAST_FUNC builtin_wait(char **argv) #if ENABLE_HUSH_JOB if (argv[0][0] == '%') { struct pipe *wait_pipe; + ret = 127; /* bash compat for bad jobspecs */ wait_pipe = parse_jobspec(*argv); if (wait_pipe) { ret = job_exited_or_stopped(wait_pipe); if (ret < 0) ret = wait_for_child_or_signal(wait_pipe, 0); - continue; } + /* else: parse_jobspec() already emitted error msg */ + continue; } #endif /* mimic bash message */ |