diff options
Diffstat (limited to 'shell/hush.c')
| -rw-r--r-- | shell/hush.c | 62 |
1 files changed, 38 insertions, 24 deletions
diff --git a/shell/hush.c b/shell/hush.c index 3cf651b..bad2c80 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -5457,17 +5457,16 @@ static int builtin_eval(char **argv) static int builtin_cd(char **argv) { - const char *newdir; - if (*++argv == NULL) { + const char *newdir = argv[1]; + if (newdir == NULL) { /* bash does nothing (exitcode 0) if HOME is ""; if it's unset, * bash says "bash: cd: HOME not set" and does nothing (exitcode 1) */ newdir = getenv("HOME") ? : "/"; - } else { - newdir = *argv; } if (chdir(newdir)) { - printf("cd: %s: %s\n", newdir, strerror(errno)); + /* Mimic bash message exactly */ + bb_perror_msg("cd: %s", newdir); return EXIT_FAILURE; } set_cwd(); @@ -5763,18 +5762,19 @@ static int builtin_source(char **argv) { FILE *input; - if (argv[1] == NULL) + if (*++argv == NULL) return EXIT_FAILURE; /* XXX search through $PATH is missing */ - input = fopen_for_read(argv[1]); + input = fopen_or_warn(*argv, "r"); if (!input) { - bb_error_msg("can't open '%s'", argv[1]); + /* bb_perror_msg("%s", *argv); - done by fopen_or_warn */ return EXIT_FAILURE; } close_on_exec_on(fileno(input)); /* Now run the file */ +//TODO: /* XXX argv and argc are broken; need to save old G.global_argv * (pointer only is OK!) on this stack frame, * set G.global_argv=argv+1, recurse, and restore. */ @@ -5788,12 +5788,18 @@ static int builtin_umask(char **argv) mode_t new_umask; const char *arg = argv[1]; if (arg) { +//TODO: umask may take chmod-like symbolic masks new_umask = bb_strtou(arg, NULL, 8); - if (errno) + if (errno) { + //Message? bash examples: + //bash: umask: 'q': invalid symbolic mode operator + //bash: umask: 999: octal number out of range return EXIT_FAILURE; + } } else { new_umask = umask(0); printf("%.3o\n", (unsigned) new_umask); + /* fall through and restore new_umask which we set to 0 */ } umask(new_umask); return EXIT_SUCCESS; @@ -5802,35 +5808,43 @@ static int builtin_umask(char **argv) /* http://www.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#unset */ static int builtin_unset(char **argv) { - size_t i; int ret; - bool var = true; + char var; - if (!argv[1]) + if (!*++argv) return EXIT_SUCCESS; - i = 0; - if (argv[1][0] == '-') { - switch (argv[1][1]) { - case 'v': break; - case 'f': if (ENABLE_HUSH_FUNCTIONS) { var = false; break; } + var = 'v'; + if (argv[0][0] == '-') { + switch (argv[0][1]) { + case 'v': + case 'f': + var = argv[0][1]; + break; default: - bb_error_msg("unset: %s: invalid option", argv[1]); + bb_error_msg("unset: %s: invalid option", *argv); return EXIT_FAILURE; } - ++i; +//TODO: disallow "unset -vf ..." too + argv++; } ret = EXIT_SUCCESS; - while (argv[++i]) { - if (var) { - if (unset_local_var(argv[i])) + while (*argv) { + if (var == 'v') { + if (unset_local_var(*argv)) { + /* unset <nonexistent_var> doesn't fail. + * Error is when one tries to unset RO var. + * Message was printed by unset_local_var. */ ret = EXIT_FAILURE; + } } #if ENABLE_HUSH_FUNCTIONS - else - unset_local_func(argv[i]); + else { + unset_local_func(*argv); + } #endif + argv++; } return ret; } |