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/*
* Copyright (C) 1986-2005 The Free Software Foundation, Inc.
*
* Portions Copyright (C) 1998-2005 Derek Price, Ximbiot <http://ximbiot.com>,
* and others.
*
* Portions Copyright (C) 1993 david d zuhn
*
* Written by david d `zoo' zuhn while at Cygnus Support
*
* You may distribute under the terms of the GNU General Public License as
* specified in the README file that comes with the CVS source distribution.
*
*/
#include "cvs.h"
#include "getline.h"
/* this file is to be found in the user's home directory */
#ifndef CVSRC_FILENAME
#define CVSRC_FILENAME ".cvsrc"
#endif
char cvsrc[] = CVSRC_FILENAME;
#define GROW 10
extern char *strtok ();
/* Read cvsrc, processing options matching CMDNAME ("cvs" for global
options, and update *ARGC and *ARGV accordingly. */
void
read_cvsrc (argc, argv, cmdname)
int *argc;
char ***argv;
const char *cmdname;
{
char *homedir;
char *homeinit;
FILE *cvsrcfile;
char *line;
int line_length;
size_t line_chars_allocated;
char *optstart;
int command_len;
int found = 0;
int i;
int new_argc;
int max_new_argv;
char **new_argv;
/* old_argc and old_argv hold the values returned from the
previous invocation of read_cvsrc and are used to free the
allocated memory. The first invocation of read_cvsrc gets argv
from the system, this memory must not be free'd. */
static int old_argc = 0;
static char **old_argv = NULL;
/* don't do anything if argc is -1, since that implies "help" mode */
if (*argc == -1)
return;
/* determine filename for ~/.cvsrc */
homedir = get_homedir ();
/* If we can't find a home directory, ignore ~/.cvsrc. This may
make tracking down problems a bit of a pain, but on the other
hand it might be obnoxious to complain when CVS will function
just fine without .cvsrc (and many users won't even know what
.cvsrc is). */
if (!homedir)
return;
homeinit = strcat_filename_onto_homedir (homedir, cvsrc);
/* if it can't be read, there's no point to continuing */
if (!isreadable (homeinit))
{
free (homeinit);
return;
}
/* now scan the file until we find the line for the command in question */
line = NULL;
line_chars_allocated = 0;
command_len = strlen (cmdname);
cvsrcfile = open_file (homeinit, "r");
while ((line_length = getline (&line, &line_chars_allocated, cvsrcfile))
>= 0)
{
/* skip over comment lines */
if (line[0] == '#')
continue;
/* stop if we match the current command */
if (!strncmp (line, cmdname, command_len)
&& isspace ((unsigned char) *(line + command_len)))
{
found = 1;
break;
}
}
if (line_length < 0 && !feof (cvsrcfile))
error (0, errno, "cannot read %s", homeinit);
fclose (cvsrcfile);
/* setup the new options list */
new_argc = 1;
max_new_argv = (*argc) + GROW;
new_argv = (char **) xmalloc (max_new_argv * sizeof (char*));
new_argv[0] = xstrdup ((*argv)[0]);
if (found)
{
/* skip over command in the options line */
for (optstart = strtok (line + command_len, "\t \n\r");
optstart;
optstart = strtok (NULL, "\t \n\r"))
{
new_argv [new_argc++] = xstrdup (optstart);
if (new_argc >= max_new_argv)
{
max_new_argv += GROW;
new_argv = (char **) xrealloc (new_argv, max_new_argv * sizeof (char*));
}
}
}
if (line != NULL)
free (line);
/* now copy the remaining arguments */
if (new_argc + *argc > max_new_argv)
{
max_new_argv = new_argc + *argc;
new_argv = (char **) xrealloc (new_argv, max_new_argv * sizeof (char*));
}
for (i=1; i < *argc; i++)
{
new_argv [new_argc++] = xstrdup ((*argv)[i]);
}
if (old_argv != NULL)
{
/* Free the memory which was allocated in the previous
read_cvsrc call. */
free_names (&old_argc, old_argv);
}
old_argc = *argc = new_argc;
old_argv = *argv = new_argv;
free (homeinit);
return;
}
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