diff options
Diffstat (limited to 'cmd-string.c')
-rw-r--r-- | cmd-string.c | 82 |
1 files changed, 30 insertions, 52 deletions
diff --git a/cmd-string.c b/cmd-string.c index 822d35b5..1b96b280 100644 --- a/cmd-string.c +++ b/cmd-string.c @@ -54,15 +54,17 @@ cmd_string_ungetc(size_t *p) (*p)--; } -int -cmd_string_split(const char *s, int *rargc, char ***rargv) +struct cmd_list * +cmd_string_parse(const char *s, const char *file, u_int line, char **cause) { - size_t p = 0; - int ch, argc = 0, append = 0; - char **argv = NULL, *buf = NULL, *t; - const char *whitespace, *equals; - size_t len = 0; + size_t p = 0; + int ch, i, argc = 0; + char **argv = NULL, *buf = NULL, *t; + const char *whitespace, *equals; + size_t len = 0; + struct cmd_list *cmdlist = NULL; + *cause = NULL; for (;;) { ch = cmd_string_getc(s, &p); switch (ch) { @@ -113,67 +115,43 @@ cmd_string_split(const char *s, int *rargc, char ***rargv) argc--; memmove(argv, argv + 1, argc * (sizeof *argv)); } - goto done; + if (argc == 0) + goto out; + + cmdlist = cmd_list_parse(argc, argv, file, line, cause); + goto out; case '~': - if (buf != NULL) { - append = 1; + if (buf == NULL) { + t = cmd_string_expand_tilde(s, &p); + if (t == NULL) + goto error; + cmd_string_copy(&buf, t, &len); break; } - t = cmd_string_expand_tilde(s, &p); - if (t == NULL) - goto error; - cmd_string_copy(&buf, t, &len); - break; + /* FALLTHROUGH */ default: - append = 1; - break; - } - if (append) { if (len >= SIZE_MAX - 2) goto error; + buf = xrealloc(buf, len + 1); buf[len++] = ch; + break; } - append = 0; } -done: - *rargc = argc; - *rargv = argv; - - free(buf); - return (0); - error: - if (argv != NULL) - cmd_free_argv(argc, argv); - free(buf); - return (-1); -} + xasprintf(cause, "invalid or unknown command: %s", s); -struct cmd_list * -cmd_string_parse(const char *s, const char *file, u_int line, char **cause) -{ - struct cmd_list *cmdlist = NULL; - int argc; - char **argv; +out: + free(buf); - *cause = NULL; - if (cmd_string_split(s, &argc, &argv) != 0) - goto error; - if (argc != 0) { - cmdlist = cmd_list_parse(argc, argv, file, line, cause); - if (cmdlist == NULL) { - cmd_free_argv(argc, argv); - goto error; - } + if (argv != NULL) { + for (i = 0; i < argc; i++) + free(argv[i]); + free(argv); } - cmd_free_argv(argc, argv); - return (cmdlist); -error: - xasprintf(cause, "invalid or unknown command: %s", s); - return (NULL); + return (cmdlist); } static void |