diff options
Diffstat (limited to 'shell/hush.c')
| -rw-r--r-- | shell/hush.c | 114 |
1 files changed, 63 insertions, 51 deletions
diff --git a/shell/hush.c b/shell/hush.c index b6d9d7abb..219158f18 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -10096,6 +10096,19 @@ int hush_main(int argc, char **argv) * PS4='+ ' */ +#if NUM_SCRIPTS > 0 + if (argc < 0) { + char *script = get_script_content(-argc - 1); + G.global_argv = argv; + G.global_argc = string_array_len(argv); + G.root_pid = getpid(); + G.root_ppid = getppid(); + //install_special_sighandlers(); - needed? + parse_and_run_string(script); + goto final_return; + } +#endif + /* Initialize some more globals to non-zero values */ die_func = restore_ttypgrp_and__exit; @@ -10110,16 +10123,8 @@ int hush_main(int argc, char **argv) /* http://www.opengroup.org/onlinepubs/9699919799/utilities/sh.html */ flags = (argv[0] && argv[0][0] == '-') ? OPT_login : 0; builtin_argc = 0; -#if NUM_SCRIPTS > 0 - if (argc < 0) { - optarg = get_script_content(-argc - 1); - optind = 0; - argc = string_array_len(argv); - goto run_script; - } -#endif while (1) { - int opt = getopt(argc, argv, "+c:exinsl" + int opt = getopt(argc, argv, "+cexinsl" #if !BB_MMU "<:$:R:V:" # if ENABLE_HUSH_FUNCTIONS @@ -10131,50 +10136,11 @@ int hush_main(int argc, char **argv) break; switch (opt) { case 'c': - /* Possibilities: - * sh ... -c 'script' - * sh ... -c 'script' ARG0 [ARG1...] - * On NOMMU, if builtin_argc != 0, - * sh ... -c 'builtin' BARGV... "" ARG0 [ARG1...] - * "" needs to be replaced with NULL - * and BARGV vector fed to builtin function. - * Note: the form without ARG0 never happens: - * sh ... -c 'builtin' BARGV... "" + /* Note: -c is not a param with option! + * "hush -c -l SCRIPT" is valid. "hush -cSCRIPT" is not. */ -#if NUM_SCRIPTS > 0 - run_script: -#endif - if (!G.root_pid) { - G.root_pid = getpid(); - G.root_ppid = getppid(); - } - G.global_argv = argv + optind; - G.global_argc = argc - optind; - if (builtin_argc) { - /* -c 'builtin' [BARGV...] "" ARG0 [ARG1...] */ - const struct built_in_command *x; - - install_special_sighandlers(); - x = find_builtin(optarg); - if (x) { /* paranoia */ - G.global_argc -= builtin_argc; /* skip [BARGV...] "" */ - G.global_argv += builtin_argc; - G.global_argv[-1] = NULL; /* replace "" */ - fflush_all(); - G.last_exitcode = x->b_function(argv + optind - 1); - } - goto final_return; - } G.opt_c = 1; - if (!G.global_argv[0]) { - /* -c 'script' (no params): prevent empty $0 */ - G.global_argv--; /* points to argv[i] of 'script' */ - G.global_argv[0] = argv[0]; - G.global_argc++; - } /* else -c 'script' ARG0 [ARG1...]: $0 is ARG0 */ - install_special_sighandlers(); - parse_and_run_string(optarg); - goto final_return; + break; case 'i': /* Well, we cannot just declare interactiveness, * we have to have some stuff (ctty, etc) */ @@ -10290,6 +10256,52 @@ int hush_main(int argc, char **argv) */ } + /* -c takes effect *after* -l */ + if (G.opt_c) { + /* Possibilities: + * sh ... -c 'script' + * sh ... -c 'script' ARG0 [ARG1...] + * On NOMMU, if builtin_argc != 0, + * sh ... -c 'builtin' BARGV... "" ARG0 [ARG1...] + * "" needs to be replaced with NULL + * and BARGV vector fed to builtin function. + * Note: the form without ARG0 never happens: + * sh ... -c 'builtin' BARGV... "" + */ + char *script; + + install_special_sighandlers(); + + G.global_argc--; + G.global_argv++; + if (builtin_argc) { + /* -c 'builtin' [BARGV...] "" ARG0 [ARG1...] */ + const struct built_in_command *x; + x = find_builtin(G.global_argv[0]); + if (x) { /* paranoia */ + argv = G.global_argv; + G.global_argc -= builtin_argc + 1; /* skip [BARGV...] "" */ + G.global_argv += builtin_argc + 1; + G.global_argv[-1] = NULL; /* replace "" */ + G.last_exitcode = x->b_function(argv); + } + goto final_return; + } + + script = G.global_argv[0]; + if (!script) + bb_error_msg_and_die(bb_msg_requires_arg, "-c"); + if (!G.global_argv[1]) { + /* -c 'script' (no params): prevent empty $0 */ + G.global_argv[0] = argv[0]; + } else { /* else -c 'script' ARG0 [ARG1...]: $0 is ARG0 */ + G.global_argc--; + G.global_argv++; + } + parse_and_run_string(script); + goto final_return; + } + /* -s is: hush -s ARGV1 ARGV2 (no SCRIPT) */ if (!G.opt_s && G.global_argv[1]) { HFILE *input; |