run through indent
This commit is contained in:
Glenn L McGrath
parent
00ed36fd52
commit
09c295a5bc
@ -65,52 +65,52 @@
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This function have special algorithm.
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Don`t use fork and include to main!
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*/
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static int
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xargs_exec (char *const *args)
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static int xargs_exec(char *const *args)
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{
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pid_t p;
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volatile int exec_errno = 0; /* shared vfork stack */
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pid_t p;
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volatile int exec_errno = 0; /* shared vfork stack */
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if ((p = vfork ()) >= 0) {
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if (p == 0) {
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/* vfork -- child */
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execvp (args[0], args);
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exec_errno = errno; /* set error to shared stack */
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_exit (1);
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if ((p = vfork()) >= 0) {
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if (p == 0) {
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/* vfork -- child */
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execvp(args[0], args);
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exec_errno = errno; /* set error to shared stack */
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_exit(1);
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} else {
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/* vfork -- parent */
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int status;
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while (wait(&status) == (pid_t) - 1)
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if (errno != EINTR)
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break;
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if (exec_errno) {
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errno = exec_errno;
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bb_perror_msg("%s", args[0]);
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return exec_errno == ENOENT ? 127 : 126;
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} else {
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if (WEXITSTATUS(status) == 255) {
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bb_error_msg("%s: exited with status 255; aborting",
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args[0]);
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return 124;
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}
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if (WIFSTOPPED(status)) {
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bb_error_msg("%s: stopped by signal %d", args[0],
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WSTOPSIG(status));
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return 125;
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}
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if (WIFSIGNALED(status)) {
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bb_error_msg("%s: terminated by signal %d", args[0],
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WTERMSIG(status));
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return 125;
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}
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if (WEXITSTATUS(status) != 0)
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return 123;
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return 0;
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}
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}
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} else {
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/* vfork -- parent */
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int status;
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while (wait (&status) == (pid_t) - 1)
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if (errno != EINTR)
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break;
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if (exec_errno) {
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errno = exec_errno;
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bb_perror_msg ("%s", args[0]);
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return exec_errno == ENOENT ? 127 : 126;
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} else {
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if (WEXITSTATUS (status) == 255) {
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bb_error_msg ("%s: exited with status 255; aborting", args[0]);
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return 124;
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}
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if (WIFSTOPPED (status)) {
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bb_error_msg ("%s: stopped by signal %d", args[0],
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WSTOPSIG (status));
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return 125;
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}
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if (WIFSIGNALED (status)) {
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bb_error_msg ("%s: terminated by signal %d", args[0],
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WTERMSIG (status));
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return 125;
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}
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if (WEXITSTATUS (status) != 0)
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return 123;
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return 0;
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}
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bb_perror_msg_and_die("vfork");
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}
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} else {
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bb_perror_msg_and_die ("vfork");
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}
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}
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@ -127,207 +127,208 @@ static int eof_stdin_detected;
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|| (c) == '\f' || (c) == '\v')
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#ifdef CONFIG_FEATURE_XARGS_SUPPORT_QUOTES
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static xlist_t *
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process_stdin (xlist_t *list_arg, const char *eof_str, size_t mc, char *buf)
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static xlist_t *process_stdin(xlist_t * list_arg, const char *eof_str,
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size_t mc, char *buf)
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{
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#define NORM 0
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#define QUOTE 1
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#define BACKSLASH 2
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#define SPACE 4
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char *s = NULL; /* start word */
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char *p = NULL; /* pointer to end word */
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char q = 0; /* quote char */
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char state = NORM;
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char eof_str_detected = 0;
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size_t line_l = 0; /* size loaded args line */
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int c; /* current char */
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xlist_t *cur;
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xlist_t *prev;
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char *s = NULL; /* start word */
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char *p = NULL; /* pointer to end word */
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char q = 0; /* quote char */
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char state = NORM;
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char eof_str_detected = 0;
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size_t line_l = 0; /* size loaded args line */
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int c; /* current char */
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xlist_t *cur;
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xlist_t *prev;
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for(prev = cur = list_arg; cur; cur = cur->link) {
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line_l += cur->lenght; /* previous allocated */
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if(prev != cur)
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prev = prev->link;
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}
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while(!eof_stdin_detected) {
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c = getchar();
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if(c == EOF) {
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eof_stdin_detected++;
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if(s)
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goto unexpected_eof;
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break;
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for (prev = cur = list_arg; cur; cur = cur->link) {
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line_l += cur->lenght; /* previous allocated */
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if (prev != cur)
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prev = prev->link;
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}
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if(eof_str_detected)
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continue;
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if (state == BACKSLASH) {
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state = NORM;
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goto set;
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} else if (state == QUOTE) {
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if (c == q) {
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q = 0;
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state = NORM;
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} else {
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goto set;
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}
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} else /* if(state == NORM) */ {
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if (ISSPACE (c)) {
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if (s) {
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unexpected_eof:
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state = SPACE;
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c = 0;
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goto set;
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while (!eof_stdin_detected) {
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c = getchar();
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if (c == EOF) {
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eof_stdin_detected++;
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if (s)
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goto unexpected_eof;
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break;
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}
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} else {
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if (s == NULL)
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s = p = buf;
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if (c == '\\') {
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state = BACKSLASH;
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} else if (c == '\'' || c == '"') {
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q = c;
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state = QUOTE;
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} else {
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set:
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if( (p-buf) >= mc)
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bb_error_msg_and_die ("argument line too long");
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*p++ = c;
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}
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}
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}
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if (state == SPACE) { /* word's delimiter or EOF detected */
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if (q)
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bb_error_msg_and_die ("unmatched %s quote",
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q == '\'' ? "single" : "double");
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/* word loaded */
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if(eof_str) {
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eof_str_detected = strcmp(s, eof_str) == 0;
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}
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if(!eof_str_detected) {
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size_t lenght = (p-buf);
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if (eof_str_detected)
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continue;
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if (state == BACKSLASH) {
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state = NORM;
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goto set;
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} else if (state == QUOTE) {
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if (c == q) {
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q = 0;
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state = NORM;
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} else {
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goto set;
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}
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} else { /* if(state == NORM) */
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cur = xmalloc(sizeof(xlist_t) + lenght);
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cur->data = memcpy(cur + 1, s, lenght);
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cur->lenght = lenght;
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cur->link = NULL;
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if(prev == NULL) {
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list_arg = cur;
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} else {
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prev->link = cur;
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}
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prev = cur;
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line_l += lenght;
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if(line_l > mc) {
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/* stop memory usage :-) */
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break;
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}
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}
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s = NULL;
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state = NORM;
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if (ISSPACE(c)) {
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if (s) {
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unexpected_eof:
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state = SPACE;
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c = 0;
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goto set;
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}
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} else {
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if (s == NULL)
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s = p = buf;
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if (c == '\\') {
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state = BACKSLASH;
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} else if (c == '\'' || c == '"') {
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q = c;
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state = QUOTE;
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} else {
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set:
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if ((p - buf) >= mc)
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bb_error_msg_and_die("argument line too long");
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*p++ = c;
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}
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}
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}
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if (state == SPACE) { /* word's delimiter or EOF detected */
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if (q)
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bb_error_msg_and_die("unmatched %s quote",
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q == '\'' ? "single" : "double");
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/* word loaded */
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if (eof_str) {
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eof_str_detected = strcmp(s, eof_str) == 0;
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}
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if (!eof_str_detected) {
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size_t lenght = (p - buf);
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cur = xmalloc(sizeof(xlist_t) + lenght);
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cur->data = memcpy(cur + 1, s, lenght);
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cur->lenght = lenght;
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cur->link = NULL;
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if (prev == NULL) {
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list_arg = cur;
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} else {
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prev->link = cur;
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}
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prev = cur;
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line_l += lenght;
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if (line_l > mc) {
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/* stop memory usage :-) */
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break;
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}
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}
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s = NULL;
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state = NORM;
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}
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}
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}
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return list_arg;
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return list_arg;
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}
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#else
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/* The variant is unsupport single, double quotes and backslash */
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static xlist_t *
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process_stdin (xlist_t *list_arg, const char *eof_str, size_t mc, char *buf)
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static xlist_t *process_stdin(xlist_t * list_arg, const char *eof_str,
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size_t mc, char *buf)
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{
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int c; /* current char */
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int eof_str_detected = 0;
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char *s = NULL; /* start word */
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char *p = NULL; /* pointer to end word */
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size_t line_l = 0; /* size loaded args line */
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xlist_t *cur;
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xlist_t *prev;
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int c; /* current char */
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int eof_str_detected = 0;
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char *s = NULL; /* start word */
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char *p = NULL; /* pointer to end word */
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size_t line_l = 0; /* size loaded args line */
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xlist_t *cur;
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xlist_t *prev;
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for(prev = cur = list_arg; cur; cur = cur->link) {
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line_l += cur->lenght; /* previous allocated */
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if(prev != cur)
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prev = prev->link;
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}
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while(!eof_stdin_detected) {
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c = getchar();
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if(c == EOF) {
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eof_stdin_detected++;
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for (prev = cur = list_arg; cur; cur = cur->link) {
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line_l += cur->lenght; /* previous allocated */
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if (prev != cur)
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prev = prev->link;
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}
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if(eof_str_detected)
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continue;
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if (c == EOF || ISSPACE (c)) {
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if(s == NULL)
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continue;
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c = EOF;
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}
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if (s == NULL)
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s = p = buf;
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if( (p-buf) >= mc)
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bb_error_msg_and_die ("argument line too long");
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*p++ = c == EOF ? 0 : c;
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if (c == EOF) { /* word's delimiter or EOF detected */
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/* word loaded */
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if(eof_str) {
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eof_str_detected = strcmp(s, eof_str) == 0;
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}
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if(!eof_str_detected) {
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size_t lenght = (p-buf);
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cur = xmalloc(sizeof(xlist_t) + lenght);
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cur->data = memcpy(cur + 1, s, lenght);
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cur->lenght = lenght;
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cur->link = NULL;
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if(prev == NULL) {
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list_arg = cur;
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} else {
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prev->link = cur;
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while (!eof_stdin_detected) {
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c = getchar();
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if (c == EOF) {
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eof_stdin_detected++;
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}
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prev = cur;
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line_l += lenght;
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if(line_l > mc) {
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/* stop memory usage :-) */
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break;
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if (eof_str_detected)
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continue;
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if (c == EOF || ISSPACE(c)) {
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if (s == NULL)
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continue;
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c = EOF;
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}
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if (s == NULL)
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s = p = buf;
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if ((p - buf) >= mc)
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bb_error_msg_and_die("argument line too long");
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*p++ = c == EOF ? 0 : c;
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if (c == EOF) { /* word's delimiter or EOF detected */
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/* word loaded */
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if (eof_str) {
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eof_str_detected = strcmp(s, eof_str) == 0;
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}
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if (!eof_str_detected) {
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size_t lenght = (p - buf);
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cur = xmalloc(sizeof(xlist_t) + lenght);
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cur->data = memcpy(cur + 1, s, lenght);
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cur->lenght = lenght;
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cur->link = NULL;
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if (prev == NULL) {
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list_arg = cur;
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} else {
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prev->link = cur;
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}
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prev = cur;
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line_l += lenght;
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if (line_l > mc) {
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/* stop memory usage :-) */
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break;
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}
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s = NULL;
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}
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}
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s = NULL;
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}
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}
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}
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return list_arg;
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return list_arg;
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}
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#endif /* CONFIG_FEATURE_XARGS_SUPPORT_QUOTES */
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#endif /* CONFIG_FEATURE_XARGS_SUPPORT_QUOTES */
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#ifdef CONFIG_FEATURE_XARGS_SUPPORT_CONFIRMATION
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/* Prompt the user for a response, and
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if the user responds affirmatively, return true;
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otherwise, return false. Used "/dev/tty", not stdin. */
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static int
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xargs_ask_confirmation (void)
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static int xargs_ask_confirmation(void)
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{
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static FILE *tty_stream;
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int c, savec;
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static FILE *tty_stream;
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int c, savec;
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|
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if (!tty_stream) {
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tty_stream = fopen ("/dev/tty", "r");
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if (!tty_stream)
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bb_perror_msg_and_die ("/dev/tty");
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/* pranoidal security by vodz */
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fcntl(fileno(tty_stream), F_SETFD, FD_CLOEXEC);
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}
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fputs (" ?...", stderr);
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fflush (stderr);
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c = savec = getc (tty_stream);
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while (c != EOF && c != '\n')
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c = getc (tty_stream);
|
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if (savec == 'y' || savec == 'Y')
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return 1;
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return 0;
|
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if (!tty_stream) {
|
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tty_stream = fopen("/dev/tty", "r");
|
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if (!tty_stream)
|
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bb_perror_msg_and_die("/dev/tty");
|
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/* pranoidal security by vodz */
|
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fcntl(fileno(tty_stream), F_SETFD, FD_CLOEXEC);
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}
|
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fputs(" ?...", stderr);
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fflush(stderr);
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c = savec = getc(tty_stream);
|
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while (c != EOF && c != '\n')
|
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c = getc(tty_stream);
|
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if (savec == 'y' || savec == 'Y')
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return 1;
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return 0;
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}
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||||
|
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# define OPT_INC_P 1
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#else
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# define OPT_INC_P 0
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# define xargs_ask_confirmation() 1
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#endif /* CONFIG_FEATURE_XARGS_SUPPORT_CONFIRMATION */
|
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#endif /* CONFIG_FEATURE_XARGS_SUPPORT_CONFIRMATION */
|
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|
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#ifdef CONFIG_FEATURE_XARGS_SUPPORT_TERMOPT
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# define OPT_INC_X 1
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@ -336,65 +337,66 @@ xargs_ask_confirmation (void)
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#endif
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|
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#ifdef CONFIG_FEATURE_XARGS_SUPPORT_ZERO_TERM
|
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static xlist_t *
|
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process0_stdin (xlist_t *list_arg, const char *eof_str, size_t mc, char *buf)
|
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static xlist_t *process0_stdin(xlist_t * list_arg, const char *eof_str,
|
||||
size_t mc, char *buf)
|
||||
{
|
||||
int c; /* current char */
|
||||
char *s = NULL; /* start word */
|
||||
char *p = NULL; /* pointer to end word */
|
||||
size_t line_l = 0; /* size loaded args line */
|
||||
xlist_t *cur;
|
||||
xlist_t *prev;
|
||||
int c; /* current char */
|
||||
char *s = NULL; /* start word */
|
||||
char *p = NULL; /* pointer to end word */
|
||||
size_t line_l = 0; /* size loaded args line */
|
||||
xlist_t *cur;
|
||||
xlist_t *prev;
|
||||
|
||||
for(prev = cur = list_arg; cur; cur = cur->link) {
|
||||
line_l += cur->lenght; /* previous allocated */
|
||||
if(prev != cur)
|
||||
prev = prev->link;
|
||||
}
|
||||
|
||||
while(!eof_stdin_detected) {
|
||||
c = getchar();
|
||||
if(c == EOF) {
|
||||
eof_stdin_detected++;
|
||||
if(s == NULL)
|
||||
break;
|
||||
c = 0;
|
||||
for (prev = cur = list_arg; cur; cur = cur->link) {
|
||||
line_l += cur->lenght; /* previous allocated */
|
||||
if (prev != cur)
|
||||
prev = prev->link;
|
||||
}
|
||||
if (s == NULL)
|
||||
s = p = buf;
|
||||
if( (p-buf) >= mc)
|
||||
bb_error_msg_and_die ("argument line too long");
|
||||
*p++ = c;
|
||||
if (c == 0) { /* word's delimiter or EOF detected */
|
||||
/* word loaded */
|
||||
size_t lenght = (p-buf);
|
||||
|
||||
cur = xmalloc(sizeof(xlist_t) + lenght);
|
||||
cur->data = memcpy(cur + 1, s, lenght);
|
||||
cur->lenght = lenght;
|
||||
cur->link = NULL;
|
||||
if(prev == NULL) {
|
||||
list_arg = cur;
|
||||
} else {
|
||||
prev->link = cur;
|
||||
while (!eof_stdin_detected) {
|
||||
c = getchar();
|
||||
if (c == EOF) {
|
||||
eof_stdin_detected++;
|
||||
if (s == NULL)
|
||||
break;
|
||||
c = 0;
|
||||
}
|
||||
prev = cur;
|
||||
line_l += lenght;
|
||||
if(line_l > mc) {
|
||||
/* stop memory usage :-) */
|
||||
break;
|
||||
if (s == NULL)
|
||||
s = p = buf;
|
||||
if ((p - buf) >= mc)
|
||||
bb_error_msg_and_die("argument line too long");
|
||||
*p++ = c;
|
||||
if (c == 0) { /* word's delimiter or EOF detected */
|
||||
/* word loaded */
|
||||
size_t lenght = (p - buf);
|
||||
|
||||
cur = xmalloc(sizeof(xlist_t) + lenght);
|
||||
cur->data = memcpy(cur + 1, s, lenght);
|
||||
cur->lenght = lenght;
|
||||
cur->link = NULL;
|
||||
if (prev == NULL) {
|
||||
list_arg = cur;
|
||||
} else {
|
||||
prev->link = cur;
|
||||
}
|
||||
prev = cur;
|
||||
line_l += lenght;
|
||||
if (line_l > mc) {
|
||||
/* stop memory usage :-) */
|
||||
break;
|
||||
}
|
||||
s = NULL;
|
||||
}
|
||||
s = NULL;
|
||||
}
|
||||
}
|
||||
return list_arg;
|
||||
return list_arg;
|
||||
}
|
||||
|
||||
# define READ_ARGS(l, e, nmc, mc) (*read_args)(l, e, nmc, mc)
|
||||
# define OPT_INC_0 1 /* future use */
|
||||
# define OPT_INC_0 1 /* future use */
|
||||
#else
|
||||
# define OPT_INC_0 0 /* future use */
|
||||
# define OPT_INC_0 0 /* future use */
|
||||
# define READ_ARGS(l, e, nmc, mc) process_stdin(l, e, nmc, mc)
|
||||
#endif /* CONFIG_FEATURE_XARGS_SUPPORT_ZERO_TERM */
|
||||
#endif /* CONFIG_FEATURE_XARGS_SUPPORT_ZERO_TERM */
|
||||
|
||||
|
||||
#define OPT_VERBOSE (1<<0)
|
||||
@ -405,7 +407,7 @@ process0_stdin (xlist_t *list_arg, const char *eof_str, size_t mc, char *buf)
|
||||
#ifdef CONFIG_FEATURE_XARGS_SUPPORT_CONFIRMATION
|
||||
#define OPT_INTERACTIVE (1<<5)
|
||||
#else
|
||||
#define OPT_INTERACTIVE (0) /* require for algorithm &| */
|
||||
#define OPT_INTERACTIVE (0) /* require for algorithm &| */
|
||||
#endif
|
||||
#define OPT_TERMINATE (1<<(5+OPT_INC_P))
|
||||
#define OPT_ZEROTERM (1<<(5+OPT_INC_P+OPT_INC_X))
|
||||
@ -413,153 +415,154 @@ process0_stdin (xlist_t *list_arg, const char *eof_str, size_t mc, char *buf)
|
||||
#define OPT_NEXT_OTHER (1<<(5+OPT_INC_P+OPT_INC_X+OPT_INC_0))
|
||||
*/
|
||||
|
||||
int
|
||||
xargs_main (int argc, char **argv)
|
||||
int xargs_main(int argc, char **argv)
|
||||
{
|
||||
char **args;
|
||||
int i, a, n;
|
||||
xlist_t *list = NULL;
|
||||
xlist_t *cur;
|
||||
int child_error = 0;
|
||||
char *max_args, *max_chars;
|
||||
int n_max_arg;
|
||||
size_t n_chars = 0;
|
||||
long orig_arg_max;
|
||||
const char *eof_str = "_";
|
||||
unsigned long opt;
|
||||
size_t n_max_chars;
|
||||
char **args;
|
||||
int i, a, n;
|
||||
xlist_t *list = NULL;
|
||||
xlist_t *cur;
|
||||
int child_error = 0;
|
||||
char *max_args, *max_chars;
|
||||
int n_max_arg;
|
||||
size_t n_chars = 0;
|
||||
long orig_arg_max;
|
||||
const char *eof_str = "_";
|
||||
unsigned long opt;
|
||||
size_t n_max_chars;
|
||||
|
||||
#ifdef CONFIG_FEATURE_XARGS_SUPPORT_ZERO_TERM
|
||||
xlist_t * (*read_args) (xlist_t *, const char *, size_t, char *) = process_stdin;
|
||||
xlist_t *(*read_args) (xlist_t *, const char *, size_t, char *) =
|
||||
process_stdin;
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_FEATURE_XARGS_SUPPORT_CONFIRMATION
|
||||
bb_opt_complementaly = "pt";
|
||||
bb_opt_complementaly = "pt";
|
||||
#endif
|
||||
|
||||
opt = bb_getopt_ulflags (argc, argv, "+trn:s:e::"
|
||||
opt = bb_getopt_ulflags(argc, argv, "+trn:s:e::"
|
||||
#ifdef CONFIG_FEATURE_XARGS_SUPPORT_CONFIRMATION
|
||||
"p"
|
||||
"p"
|
||||
#endif
|
||||
#ifdef CONFIG_FEATURE_XARGS_SUPPORT_TERMOPT
|
||||
"x"
|
||||
"x"
|
||||
#endif
|
||||
#ifdef CONFIG_FEATURE_XARGS_SUPPORT_ZERO_TERM
|
||||
"0"
|
||||
"0"
|
||||
#endif
|
||||
, &max_args, &max_chars, &eof_str);
|
||||
, &max_args, &max_chars, &eof_str);
|
||||
|
||||
a = argc - optind;
|
||||
argv += optind;
|
||||
if (a == 0) {
|
||||
/* default behavior is to echo all the filenames */
|
||||
*argv = "echo";
|
||||
a++;
|
||||
}
|
||||
|
||||
orig_arg_max = ARG_MAX;
|
||||
if (orig_arg_max == -1)
|
||||
orig_arg_max = LONG_MAX;
|
||||
orig_arg_max -= 2048; /* POSIX.2 requires subtracting 2048. */
|
||||
if ((opt & OPT_UPTO_SIZE)) {
|
||||
n_max_chars = bb_xgetularg10_bnd (max_chars, 1, orig_arg_max);
|
||||
for (i = 0; i < a; i++) {
|
||||
n_chars += strlen (*argv) + 1;
|
||||
}
|
||||
if (n_max_chars < n_chars) {
|
||||
bb_error_msg_and_die
|
||||
("can not fit single argument within argument list size limit");
|
||||
}
|
||||
n_max_chars -= n_chars;
|
||||
} else {
|
||||
/* Sanity check for systems with huge ARG_MAX defines (e.g., Suns which
|
||||
have it at 1 meg). Things will work fine with a large ARG_MAX but it
|
||||
will probably hurt the system more than it needs to; an array of this
|
||||
size is allocated. */
|
||||
if (orig_arg_max > 20 * 1024)
|
||||
orig_arg_max = 20 * 1024;
|
||||
n_max_chars = orig_arg_max;
|
||||
}
|
||||
max_chars = xmalloc(n_max_chars);
|
||||
|
||||
if ((opt & OPT_UPTO_NUMBER)) {
|
||||
n_max_arg = bb_xgetularg10_bnd (max_args, 1, INT_MAX);
|
||||
} else {
|
||||
n_max_arg = n_max_chars;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_FEATURE_XARGS_SUPPORT_ZERO_TERM
|
||||
if(opt & OPT_ZEROTERM)
|
||||
read_args = process0_stdin;
|
||||
#endif
|
||||
|
||||
while ((list = READ_ARGS(list, eof_str, n_max_chars, max_chars)) != NULL
|
||||
|| (opt & OPT_NO_EMPTY) == 0) {
|
||||
opt |= OPT_NO_EMPTY;
|
||||
n = 0;
|
||||
n_chars = 0;
|
||||
#ifdef CONFIG_FEATURE_XARGS_SUPPORT_TERMOPT
|
||||
for (cur = list; cur; ) {
|
||||
n_chars += cur->lenght;
|
||||
n++;
|
||||
cur = cur->link;
|
||||
if (n_chars > n_max_chars || (n == n_max_arg && cur)) {
|
||||
if (opt & OPT_TERMINATE)
|
||||
bb_error_msg_and_die ("argument list too long");
|
||||
break;
|
||||
}
|
||||
}
|
||||
#else
|
||||
for (cur = list; cur; cur = cur->link) {
|
||||
n_chars += cur->lenght;
|
||||
n++;
|
||||
if (n_chars > n_max_chars || n == n_max_arg) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
#endif /* CONFIG_FEATURE_XARGS_SUPPORT_TERMOPT */
|
||||
|
||||
/* allocating pointers for execvp:
|
||||
a*arg, n*arg from stdin, NULL */
|
||||
args = xcalloc (n + a + 1, sizeof (char *));
|
||||
|
||||
/* Store the command to be executed
|
||||
(taken from the command line) */
|
||||
for (i = 0; i < a; i++)
|
||||
args[i] = argv[i];
|
||||
/* (taken from stdin) */
|
||||
for (cur = list; n; cur = cur->link) {
|
||||
args[i++] = cur->data;
|
||||
n--;
|
||||
a = argc - optind;
|
||||
argv += optind;
|
||||
if (a == 0) {
|
||||
/* default behavior is to echo all the filenames */
|
||||
*argv = "echo";
|
||||
a++;
|
||||
}
|
||||
|
||||
if ((opt & (OPT_INTERACTIVE|OPT_VERBOSE))) {
|
||||
for (i = 0; args[i]; i++) {
|
||||
if (i)
|
||||
fputc (' ', stderr);
|
||||
fputs (args[i], stderr);
|
||||
orig_arg_max = ARG_MAX;
|
||||
if (orig_arg_max == -1)
|
||||
orig_arg_max = LONG_MAX;
|
||||
orig_arg_max -= 2048; /* POSIX.2 requires subtracting 2048. */
|
||||
if ((opt & OPT_UPTO_SIZE)) {
|
||||
n_max_chars = bb_xgetularg10_bnd(max_chars, 1, orig_arg_max);
|
||||
for (i = 0; i < a; i++) {
|
||||
n_chars += strlen(*argv) + 1;
|
||||
}
|
||||
if((opt & OPT_INTERACTIVE) == 0)
|
||||
fputc ('\n', stderr);
|
||||
if (n_max_chars < n_chars) {
|
||||
bb_error_msg_and_die
|
||||
("can not fit single argument within argument list size limit");
|
||||
}
|
||||
n_max_chars -= n_chars;
|
||||
} else {
|
||||
/* Sanity check for systems with huge ARG_MAX defines (e.g., Suns which
|
||||
have it at 1 meg). Things will work fine with a large ARG_MAX but it
|
||||
will probably hurt the system more than it needs to; an array of this
|
||||
size is allocated. */
|
||||
if (orig_arg_max > 20 * 1024)
|
||||
orig_arg_max = 20 * 1024;
|
||||
n_max_chars = orig_arg_max;
|
||||
}
|
||||
if ((opt & OPT_INTERACTIVE) == 0 || xargs_ask_confirmation () != 0) {
|
||||
child_error = xargs_exec (args);
|
||||
max_chars = xmalloc(n_max_chars);
|
||||
|
||||
if ((opt & OPT_UPTO_NUMBER)) {
|
||||
n_max_arg = bb_xgetularg10_bnd(max_args, 1, INT_MAX);
|
||||
} else {
|
||||
n_max_arg = n_max_chars;
|
||||
}
|
||||
|
||||
/* clean up */
|
||||
for (i = a; args[i]; i++) {
|
||||
cur = list;
|
||||
list = list->link;
|
||||
free (cur);
|
||||
}
|
||||
free (args);
|
||||
if (child_error > 0 && child_error != 123) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
#ifdef CONFIG_FEATURE_CLEAN_UP
|
||||
free(max_chars);
|
||||
#ifdef CONFIG_FEATURE_XARGS_SUPPORT_ZERO_TERM
|
||||
if (opt & OPT_ZEROTERM)
|
||||
read_args = process0_stdin;
|
||||
#endif
|
||||
return child_error;
|
||||
|
||||
while ((list = READ_ARGS(list, eof_str, n_max_chars, max_chars)) != NULL
|
||||
|| (opt & OPT_NO_EMPTY) == 0) {
|
||||
opt |= OPT_NO_EMPTY;
|
||||
n = 0;
|
||||
n_chars = 0;
|
||||
#ifdef CONFIG_FEATURE_XARGS_SUPPORT_TERMOPT
|
||||
for (cur = list; cur;) {
|
||||
n_chars += cur->lenght;
|
||||
n++;
|
||||
cur = cur->link;
|
||||
if (n_chars > n_max_chars || (n == n_max_arg && cur)) {
|
||||
if (opt & OPT_TERMINATE)
|
||||
bb_error_msg_and_die("argument list too long");
|
||||
break;
|
||||
}
|
||||
}
|
||||
#else
|
||||
for (cur = list; cur; cur = cur->link) {
|
||||
n_chars += cur->lenght;
|
||||
n++;
|
||||
if (n_chars > n_max_chars || n == n_max_arg) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
#endif /* CONFIG_FEATURE_XARGS_SUPPORT_TERMOPT */
|
||||
|
||||
/* allocating pointers for execvp:
|
||||
a*arg, n*arg from stdin, NULL */
|
||||
args = xcalloc(n + a + 1, sizeof(char *));
|
||||
|
||||
/* Store the command to be executed
|
||||
(taken from the command line) */
|
||||
for (i = 0; i < a; i++)
|
||||
args[i] = argv[i];
|
||||
/* (taken from stdin) */
|
||||
for (cur = list; n; cur = cur->link) {
|
||||
args[i++] = cur->data;
|
||||
n--;
|
||||
}
|
||||
|
||||
if ((opt & (OPT_INTERACTIVE | OPT_VERBOSE))) {
|
||||
for (i = 0; args[i]; i++) {
|
||||
if (i)
|
||||
fputc(' ', stderr);
|
||||
fputs(args[i], stderr);
|
||||
}
|
||||
if ((opt & OPT_INTERACTIVE) == 0)
|
||||
fputc('\n', stderr);
|
||||
}
|
||||
if ((opt & OPT_INTERACTIVE) == 0 || xargs_ask_confirmation() != 0) {
|
||||
child_error = xargs_exec(args);
|
||||
}
|
||||
|
||||
/* clean up */
|
||||
for (i = a; args[i]; i++) {
|
||||
cur = list;
|
||||
list = list->link;
|
||||
free(cur);
|
||||
}
|
||||
free(args);
|
||||
if (child_error > 0 && child_error != 123) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
#ifdef CONFIG_FEATURE_CLEAN_UP
|
||||
free(max_chars);
|
||||
#endif
|
||||
return child_error;
|
||||
}
|
||||
|
||||
|
||||
@ -569,12 +572,14 @@ const char *bb_applet_name = "debug stuff usage";
|
||||
|
||||
void bb_show_usage(void)
|
||||
{
|
||||
fprintf(stderr, "Usage: %s [-p] [-r] [-t] -[x] [-n max_arg] [-s max_chars]\n", bb_applet_name);
|
||||
exit(1);
|
||||
fprintf(stderr,
|
||||
"Usage: %s [-p] [-r] [-t] -[x] [-n max_arg] [-s max_chars]\n",
|
||||
bb_applet_name);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
return xargs_main(argc, argv);
|
||||
return xargs_main(argc, argv);
|
||||
}
|
||||
#endif /* TEST */
|
||||
#endif /* TEST */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user