2 * Copyright (C) 1986-2005 The Free Software Foundation, Inc.
4 * Portions Copyright (C) 1998-2005 Derek Price, Ximbiot <http://ximbiot.com>,
7 * Portions Copyright (C) 1993 david d zuhn
9 * Written by david d `zoo' zuhn while at Cygnus Support
11 * You may distribute under the terms of the GNU General Public License as
12 * specified in the README file that comes with the CVS source distribution.
20 /* this file is to be found in the user's home directory */
22 #ifndef CVSRC_FILENAME
23 #define CVSRC_FILENAME ".cvsrc"
25 char cvsrc[] = CVSRC_FILENAME;
29 /* Read cvsrc, processing options matching CMDNAME ("cvs" for global
30 options, and update *ARGC and *ARGV accordingly. */
33 read_cvsrc (int *argc, char ***argv, const char *cmdname)
41 size_t line_chars_allocated;
54 /* old_argc and old_argv hold the values returned from the
55 previous invocation of read_cvsrc and are used to free the
56 allocated memory. The first invocation of read_cvsrc gets argv
57 from the system, this memory must not be free'd. */
58 static int old_argc = 0;
59 static char **old_argv = NULL;
61 /* don't do anything if argc is -1, since that implies "help" mode */
65 /* determine filename for ~/.cvsrc */
67 homedir = get_homedir ();
68 /* If we can't find a home directory, ignore ~/.cvsrc. This may
69 make tracking down problems a bit of a pain, but on the other
70 hand it might be obnoxious to complain when CVS will function
71 just fine without .cvsrc (and many users won't even know what
76 homeinit = strcat_filename_onto_homedir (homedir, cvsrc);
78 /* if it can't be read, there's no point to continuing */
80 if (!isreadable (homeinit))
86 /* now scan the file until we find the line for the command in question */
89 line_chars_allocated = 0;
90 command_len = strlen (cmdname);
91 cvsrcfile = xfopen (homeinit, "r");
92 while ((line_length = getline (&line, &line_chars_allocated, cvsrcfile))
95 /* skip over comment lines */
99 /* stop if we match the current command */
100 if (!strncmp (line, cmdname, command_len)
101 && isspace ((unsigned char) *(line + command_len)))
108 if (line_length < 0 && !feof (cvsrcfile))
109 error (0, errno, "cannot read %s", homeinit);
113 /* setup the new options list */
116 max_new_argv = (*argc) + GROW;
117 new_argv = xnmalloc (max_new_argv, sizeof (char *));
118 new_argv[0] = xstrdup ((*argv)[0]);
122 /* skip over command in the options line */
123 for (optstart = strtok (line + command_len, "\t \n");
125 optstart = strtok (NULL, "\t \n"))
127 new_argv [new_argc++] = xstrdup (optstart);
129 if (new_argc >= max_new_argv)
131 max_new_argv += GROW;
132 new_argv = xnrealloc (new_argv, max_new_argv, sizeof (char *));
140 /* now copy the remaining arguments */
142 if (new_argc + *argc > max_new_argv)
144 max_new_argv = new_argc + *argc;
145 new_argv = xnrealloc (new_argv, max_new_argv, sizeof (char *));
147 for (i = 1; i < *argc; i++)
148 new_argv [new_argc++] = xstrdup ((*argv)[i]);
150 if (old_argv != NULL)
152 /* Free the memory which was allocated in the previous
154 free_names (&old_argc, old_argv);
157 old_argc = *argc = new_argc;
158 old_argv = *argv = new_argv;