run through indent
authorGlenn L McGrath <bug1@ihug.co.nz>
Thu, 30 Oct 2003 22:47:16 +0000 (22:47 -0000)
committerGlenn L McGrath <bug1@ihug.co.nz>
Thu, 30 Oct 2003 22:47:16 +0000 (22:47 -0000)
findutils/xargs.c

index 8bab4462339dc22264028bffeb6cc31868c26ee9..e2e6d3abdbb43406c8ac4c5a6bbf0ffbf9bed94e 100644 (file)
    This function have special algorithm.
    Don`t use fork and include to main!
 */
-static int
-xargs_exec (char *const *args)
+static int xargs_exec(char *const *args)
 {
-  pid_t p;
-  volatile int exec_errno = 0;          /* shared vfork stack */
-
-  if ((p = vfork ()) >= 0) {
-       if (p == 0) {
-         /* vfork -- child */
-         execvp (args[0], args);
-         exec_errno = errno;           /* set error to shared stack */
-         _exit (1);
-       } else {
-         /* vfork -- parent */
-         int status;
-
-         while (wait (&status) == (pid_t) - 1)
-               if (errno != EINTR)
-                 break;
-         if (exec_errno) {
-               errno = exec_errno;
-               bb_perror_msg ("%s", args[0]);
-               return exec_errno == ENOENT ? 127 : 126;
-         } else {
-               if (WEXITSTATUS (status) == 255) {
-                 bb_error_msg ("%s: exited with status 255; aborting", args[0]);
-                 return 124;
-               }
-               if (WIFSTOPPED (status)) {
-                 bb_error_msg ("%s: stopped by signal %d", args[0],
-                                               WSTOPSIG (status));
-                 return 125;
-               }
-               if (WIFSIGNALED (status)) {
-                 bb_error_msg ("%s: terminated by signal %d", args[0],
-                                               WTERMSIG (status));
-                 return 125;
+       pid_t p;
+       volatile int exec_errno = 0;    /* shared vfork stack */
+
+       if ((p = vfork()) >= 0) {
+               if (p == 0) {
+                       /* vfork -- child */
+                       execvp(args[0], args);
+                       exec_errno = errno;     /* set error to shared stack */
+                       _exit(1);
+               } else {
+                       /* vfork -- parent */
+                       int status;
+
+                       while (wait(&status) == (pid_t) - 1)
+                               if (errno != EINTR)
+                                       break;
+                       if (exec_errno) {
+                               errno = exec_errno;
+                               bb_perror_msg("%s", args[0]);
+                               return exec_errno == ENOENT ? 127 : 126;
+                       } else {
+                               if (WEXITSTATUS(status) == 255) {
+                                       bb_error_msg("%s: exited with status 255; aborting",
+                                                                args[0]);
+                                       return 124;
+                               }
+                               if (WIFSTOPPED(status)) {
+                                       bb_error_msg("%s: stopped by signal %d", args[0],
+                                                                WSTOPSIG(status));
+                                       return 125;
+                               }
+                               if (WIFSIGNALED(status)) {
+                                       bb_error_msg("%s: terminated by signal %d", args[0],
+                                                                WTERMSIG(status));
+                                       return 125;
+                               }
+                               if (WEXITSTATUS(status) != 0)
+                                       return 123;
+                               return 0;
+                       }
                }
-               if (WEXITSTATUS (status) != 0)
-                 return 123;
-               return 0;
-         }
+       } else {
+               bb_perror_msg_and_die("vfork");
        }
-  } else {
-       bb_perror_msg_and_die ("vfork");
-  }
 }
 
 
@@ -127,207 +127,208 @@ static int eof_stdin_detected;
                    || (c) == '\f' || (c) == '\v')
 
 #ifdef CONFIG_FEATURE_XARGS_SUPPORT_QUOTES
-static xlist_t *
-process_stdin (xlist_t *list_arg, const char *eof_str, size_t mc, char *buf)
+static xlist_t *process_stdin(xlist_t * list_arg, const char *eof_str,
+                                                         size_t mc, char *buf)
 {
 #define NORM      0
 #define QUOTE     1
 #define BACKSLASH 2
 #define SPACE     4
 
-  char *s = NULL;       /* start word */
-  char *p = NULL;       /* pointer to end word */
-  char q = 0;           /* quote char */
-  char state = NORM;
-  char eof_str_detected = 0;
-  size_t line_l = 0;    /* size loaded args line */
-  int c;                /* current char */
-  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)
-               goto unexpected_eof;
-           break;
+       char *s = NULL;         /* start word */
+       char *p = NULL;         /* pointer to end word */
+       char q = 0;                     /* quote char */
+       char state = NORM;
+       char eof_str_detected = 0;
+       size_t line_l = 0;      /* size loaded args line */
+       int c;                          /* current char */
+       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;
        }
-       if(eof_str_detected)
-           continue;
-       if (state == BACKSLASH) {
-           state = NORM;
-           goto set;
-       } else if (state == QUOTE) {
-           if (c == q) {
-               q = 0;
-               state = NORM;
-           } else {
-               goto set;
-           }
-       } else /* if(state == NORM) */ {
-           if (ISSPACE (c)) {
-               if (s) {
-unexpected_eof:
-                 state = SPACE;
-                 c = 0;
-                 goto set;
+
+       while (!eof_stdin_detected) {
+               c = getchar();
+               if (c == EOF) {
+                       eof_stdin_detected++;
+                       if (s)
+                               goto unexpected_eof;
+                       break;
                }
-           } else {
-               if (s == NULL)
-                   s = p = buf;
-               if (c == '\\') {
-                   state = BACKSLASH;
-               } else if (c == '\'' || c == '"') {
-                   q = c;
-                   state = QUOTE;
-               } else {
-set:
-                   if( (p-buf) >= mc)
-                           bb_error_msg_and_die ("argument line too long");
-                   *p++ = c;
+               if (eof_str_detected)
+                       continue;
+               if (state == BACKSLASH) {
+                       state = NORM;
+                       goto set;
+               } else if (state == QUOTE) {
+                       if (c == q) {
+                               q = 0;
+                               state = NORM;
+                       } else {
+                               goto set;
+                       }
+               } else {                /* if(state == NORM) */
+
+                       if (ISSPACE(c)) {
+                               if (s) {
+                                 unexpected_eof:
+                                       state = SPACE;
+                                       c = 0;
+                                       goto set;
+                               }
+                       } else {
+                               if (s == NULL)
+                                       s = p = buf;
+                               if (c == '\\') {
+                                       state = BACKSLASH;
+                               } else if (c == '\'' || c == '"') {
+                                       q = c;
+                                       state = QUOTE;
+                               } else {
+                                 set:
+                                       if ((p - buf) >= mc)
+                                               bb_error_msg_and_die("argument line too long");
+                                       *p++ = c;
+                               }
+                       }
+               }
+               if (state == SPACE) {   /* word's delimiter or EOF detected */
+                       if (q)
+                               bb_error_msg_and_die("unmatched %s quote",
+                                                                        q == '\'' ? "single" : "double");
+                       /* word loaded */
+                       if (eof_str) {
+                               eof_str_detected = strcmp(s, eof_str) == 0;
+                       }
+                       if (!eof_str_detected) {
+                               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;
+                       state = NORM;
                }
-           }
-       }
-       if (state == SPACE) {    /* word's delimiter or EOF detected */
-         if (q)
-           bb_error_msg_and_die ("unmatched %s quote",
-                                   q == '\'' ? "single" : "double");
-         /* word loaded */
-         if(eof_str) {
-           eof_str_detected = strcmp(s, eof_str) == 0;
-         }
-         if(!eof_str_detected) {
-           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;
-         state = NORM;
        }
-  }
-  return list_arg;
+       return list_arg;
 }
 #else
 /* The variant is unsupport single, double quotes and backslash */
-static xlist_t *
-process_stdin (xlist_t *list_arg, const char *eof_str, size_t mc, char *buf)
+static xlist_t *process_stdin(xlist_t * list_arg, const char *eof_str,
+                                                         size_t mc, char *buf)
 {
 
-  int c;                /* current char */
-  int eof_str_detected = 0;
-  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(eof_str_detected)
-           continue;
-       if (c == EOF || ISSPACE (c)) {
-           if(s == NULL)
-               continue;
-           c = EOF;
+       int c;                          /* current char */
+       int eof_str_detected = 0;
+       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;
        }
-       if (s == NULL)
-           s = p = buf;
-       if( (p-buf) >= mc)
-           bb_error_msg_and_die ("argument line too long");
-       *p++ = c == EOF ? 0 : c;
-       if (c == EOF) {    /* word's delimiter or EOF detected */
-           /* word loaded */
-           if(eof_str) {
-               eof_str_detected = strcmp(s, eof_str) == 0;
-           }
-           if(!eof_str_detected) {
-               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++;
                }
-               prev = cur;
-               line_l += lenght;
-               if(line_l > mc) {
-                   /* stop memory usage :-) */
-                   break;
+               if (eof_str_detected)
+                       continue;
+               if (c == EOF || ISSPACE(c)) {
+                       if (s == NULL)
+                               continue;
+                       c = EOF;
+               }
+               if (s == NULL)
+                       s = p = buf;
+               if ((p - buf) >= mc)
+                       bb_error_msg_and_die("argument line too long");
+               *p++ = c == EOF ? 0 : c;
+               if (c == EOF) { /* word's delimiter or EOF detected */
+                       /* word loaded */
+                       if (eof_str) {
+                               eof_str_detected = strcmp(s, eof_str) == 0;
+                       }
+                       if (!eof_str_detected) {
+                               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;
 }
-#endif /* CONFIG_FEATURE_XARGS_SUPPORT_QUOTES */
+#endif                                                 /* CONFIG_FEATURE_XARGS_SUPPORT_QUOTES */
 
 
 #ifdef CONFIG_FEATURE_XARGS_SUPPORT_CONFIRMATION
 /* Prompt the user for a response, and
    if the user responds affirmatively, return true;
    otherwise, return false. Used "/dev/tty", not stdin. */
-static int
-xargs_ask_confirmation (void)
+static int xargs_ask_confirmation(void)
 {
-  static FILE *tty_stream;
-  int c, savec;
-
-  if (!tty_stream) {
-      tty_stream = fopen ("/dev/tty", "r");
-      if (!tty_stream)
-       bb_perror_msg_and_die ("/dev/tty");
-      /* pranoidal security by vodz */
-      fcntl(fileno(tty_stream), F_SETFD, FD_CLOEXEC);
-  }
-  fputs (" ?...", stderr);
-  fflush (stderr);
-  c = savec = getc (tty_stream);
-  while (c != EOF && c != '\n')
-    c = getc (tty_stream);
-  if (savec == 'y' || savec == 'Y')
-    return 1;
-  return 0;
+       static FILE *tty_stream;
+       int c, savec;
+
+       if (!tty_stream) {
+               tty_stream = fopen("/dev/tty", "r");
+               if (!tty_stream)
+                       bb_perror_msg_and_die("/dev/tty");
+               /* pranoidal security by vodz */
+               fcntl(fileno(tty_stream), F_SETFD, FD_CLOEXEC);
+       }
+       fputs(" ?...", stderr);
+       fflush(stderr);
+       c = savec = getc(tty_stream);
+       while (c != EOF && c != '\n')
+               c = getc(tty_stream);
+       if (savec == 'y' || savec == 'Y')
+               return 1;
+       return 0;
 }
+
 # define OPT_INC_P 1
 #else
 # define OPT_INC_P 0
 # define xargs_ask_confirmation() 1
-#endif                  /* CONFIG_FEATURE_XARGS_SUPPORT_CONFIRMATION */
+#endif                                                 /* CONFIG_FEATURE_XARGS_SUPPORT_CONFIRMATION */
 
 #ifdef CONFIG_FEATURE_XARGS_SUPPORT_TERMOPT
 # define OPT_INC_X 1
@@ -336,65 +337,66 @@ xargs_ask_confirmation (void)
 #endif
 
 #ifdef CONFIG_FEATURE_XARGS_SUPPORT_ZERO_TERM
-static xlist_t *
-process0_stdin (xlist_t *list_arg, const char *eof_str, size_t mc, char *buf)
+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;
-
-  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;
+       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;
        }
-       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);
-
-  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;
+                                                       , &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;
        }
-       if (n_max_chars < n_chars) {
-         bb_error_msg_and_die
-               ("can not fit single argument within argument list size limit");
+       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;
        }
-       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;
+       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;
+       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;
-           }
-       }
+               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--;
-       }
+               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 | 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);
                }
-               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;
+               /* 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);
+       free(max_chars);
 #endif
-  return child_error;
+       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 */