/* general.c -- Stuff that is used by all files. */
-/* Copyright (C) 1987-2004 Free Software Foundation, Inc.
+/* Copyright (C) 1987-2009 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
- Bash is free software; you can redistribute it and/or modify it under
- the terms of the GNU General Public License as published by the Free
- Software Foundation; either version 2, or (at your option) any later
- version.
+ Bash is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
- Bash is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- for more details.
+ Bash is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
- You should have received a copy of the GNU General Public License along
- with Bash; see the file COPYING. If not, write to the Free Software
- Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+ You should have received a copy of the GNU General Public License
+ along with Bash. If not, see <http://www.gnu.org/licenses/>.
+*/
#include "config.h"
static void initialize_group_array __P((void));
/* A standard error message to use when getcwd() returns NULL. */
-char *bash_getcwd_errstr = N_("getcwd: cannot access parent directories");
+const char * const bash_getcwd_errstr = N_("getcwd: cannot access parent directories");
/* Do whatever is necessary to initialize `Posix mode'. */
void
if (on != 0)
{
interactive_comments = source_uses_path = expand_aliases = 1;
+ source_searches_cwd = 0;
}
/* Things that should be turned on when posix mode is disabled. */
not null. */
int
legal_number (string, result)
- char *string;
+ const char *string;
intmax_t *result;
{
intmax_t value;
errno = 0;
value = strtoimax (string, &ep, 10);
- if (errno)
+ if (errno || ep == string)
return 0; /* errno is set on overflow or underflow */
/* Skip any trailing whitespace, since strtoimax does not. */
c = sample[i];
if (c == '\n')
return (0);
-
-#if 0
- if (ISSPACE (c) == 0 && ISPRINT (c) == 0)
-#else
if (c == '\0')
-#endif
return (1);
-
}
return (0);
}
+/* **************************************************************** */
+/* */
+/* Functions to manipulate pipes */
+/* */
+/* **************************************************************** */
+
+int
+sh_openpipe (pv)
+ int *pv;
+{
+ int r;
+
+ if ((r = pipe (pv)) < 0)
+ return r;
+
+ pv[0] = move_to_high_fd (pv[0], 1, 64);
+ pv[1] = move_to_high_fd (pv[1], 1, 64);
+
+ return 0;
+}
+
+int
+sh_closepipe (pv)
+ int *pv;
+{
+ if (pv[0] >= 0)
+ close (pv[0]);
+
+ if (pv[1] >= 0)
+ close (pv[1]);
+
+ pv[0] = pv[1] = -1;
+ return 0;
+}
+
/* **************************************************************** */
/* */
/* Functions to inspect pathnames */
/* */
/* **************************************************************** */
+int
+file_exists (fn)
+ char *fn;
+{
+ struct stat sb;
+
+ return (stat (fn, &sb) == 0);
+}
+
int
file_isdir (fn)
char *fn;
return (name);
}
+/* Trim NAME. If NAME begins with `~/', skip over tilde prefix. Trim to
+ keep any tilde prefix and PROMPT_DIRTRIM trailing directory components
+ and replace the intervening characters with `...' */
+char *
+trim_pathname (name, maxlen)
+ char *name;
+ int maxlen;
+{
+ int nlen, ndirs;
+ intmax_t nskip;
+ char *nbeg, *nend, *ntail, *v;
+
+ if (name == 0 || (nlen = strlen (name)) == 0)
+ return name;
+ nend = name + nlen;
+
+ v = get_string_value ("PROMPT_DIRTRIM");
+ if (v == 0 || *v == 0)
+ return name;
+ if (legal_number (v, &nskip) == 0 || nskip <= 0)
+ return name;
+
+ /* Skip over tilde prefix */
+ nbeg = name;
+ if (name[0] == '~')
+ for (nbeg = name; *nbeg; nbeg++)
+ if (*nbeg == '/')
+ {
+ nbeg++;
+ break;
+ }
+ if (*nbeg == 0)
+ return name;
+
+ for (ndirs = 0, ntail = nbeg; *ntail; ntail++)
+ if (*ntail == '/')
+ ndirs++;
+ if (ndirs <= nskip)
+ return name;
+
+ for (ntail = (*nend == '/') ? nend : nend - 1; ntail > nbeg; ntail--)
+ {
+ if (*ntail == '/')
+ nskip--;
+ if (nskip == 0)
+ break;
+ }
+ if (ntail == nbeg)
+ return name;
+
+ /* Now we want to return name[0..nbeg]+"..."+ntail, modifying name in place */
+ nlen = ntail - nbeg;
+ if (nlen <= 3)
+ return name;
+
+ *nbeg++ = '.';
+ *nbeg++ = '.';
+ *nbeg++ = '.';
+
+ nlen = nend - ntail;
+ memcpy (nbeg, ntail, nlen);
+ nbeg[nlen] = '\0';
+
+ return name;
+}
+
/* Given a string containing units of information separated by colons,
return the next one pointed to by (P_INDEX), or NULL if there are no more.
Advance (P_INDEX) to the character after the colon. */
const char *s;
int assign_p;
{
- int old_immed, r;
+ int old_immed, old_term, r;
char *ret;
old_immed = interrupt_immediately;
- interrupt_immediately = 1;
+ old_term = terminate_immediately;
+ interrupt_immediately = terminate_immediately = 1;
tilde_additional_prefixes = assign_p == 0 ? (char **)0
: (assign_p == 2 ? bash_tilde_prefixes2 : bash_tilde_prefixes);
r = (*s == '~') ? unquoted_tilde_word (s) : 1;
ret = r ? tilde_expand (s) : savestring (s);
interrupt_immediately = old_immed;
+ terminate_immediately = old_term;
return (ret);
}
projects / thirdparty / bash.git / blobdiff