diff options
Diffstat (limited to 'shell/hush.c')
| -rw-r--r-- | shell/hush.c | 62 |
1 files changed, 50 insertions, 12 deletions
diff --git a/shell/hush.c b/shell/hush.c index dd5031951..40fcb7be4 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -2644,6 +2644,7 @@ static const struct function *find_function(const char *name) debug_printf_exec("found function '%s'\n", name); return funcp; } + static void exec_function(const struct function *funcp, char **argv) NORETURN; static void exec_function(const struct function *funcp, char **argv) { @@ -2660,7 +2661,49 @@ static void exec_function(const struct function *funcp, char **argv) _exit(n); # else re_execute_shell(funcp->body_as_string, G.global_argv[0], argv + 1); -#endif +# endif +} + +static int run_function(const struct function *funcp, char **argv) +{ + int n; + char **pp; + char *sv_argv0; + smallint sv_g_malloced; + int sv_g_argc; + char **sv_g_argv; + + sv_argv0 = argv[0]; + sv_g_malloced = G.global_args_malloced; + sv_g_argc = G.global_argc; + sv_g_argv = G.global_argv; + + pp = argv; + n = 1; + while (*++pp) + n++; + + argv[0] = G.global_argv[0]; /* retain $0 */ + G.global_args_malloced = 0; + G.global_argc = n; + G.global_argv = argv; + + n = run_list(funcp->body); + + if (G.global_args_malloced) { + /* function ran "set -- arg1 arg2 ..." */ + pp = G.global_argv; + while (*++pp) + free(*pp); + free(G.global_argv); + } + + argv[0] = sv_argv0; + G.global_args_malloced = sv_g_malloced; + G.global_argc = sv_g_argc; + G.global_argv = sv_g_argv; + + return n; } #endif @@ -3238,7 +3281,7 @@ static int run_pipe(struct pipe *pi) else { debug_printf_exec(": function '%s' '%s'...\n", funcp->name, argv_expanded[1]); - rcode = run_list(funcp->body) & 0xff; + rcode = run_function(funcp, argv_expanded) & 0xff; } #endif } @@ -6436,19 +6479,14 @@ static int builtin_set(char **argv) ++argv; goto set_argv; } - - if (arg[0] == '+' || arg[0] == '-') { - for (n = 1; arg[n]; ++n) - if (set_mode(arg[0], arg[n])) - goto error; - continue; - } - - break; + if (arg[0] != '+' && arg[0] != '-') + break; + for (n = 1; arg[n]; ++n) + if (set_mode(arg[0], arg[n])) + goto error; } while ((arg = *++argv) != NULL); /* Now argv[0] is 1st argument */ - /* Only reset global_argv if we didn't process anything */ if (arg == NULL) return EXIT_SUCCESS; set_argv: |