2 * Copyright (c) 1993 david d zuhn
4 * Written by david d `zoo' zuhn while at Cygnus Support
6 * You may distribute under the terms of the GNU General Public License as
7 * specified in the README file that comes with the CVS source distribution.
15 /* this file is to be found in the user's home directory */
17 #ifndef CVSRC_FILENAME
18 #define CVSRC_FILENAME ".cvsrc"
20 char cvsrc[] = CVSRC_FILENAME;
24 extern char *strtok ();
26 /* Read cvsrc, processing options matching CMDNAME ("cvs" for global
27 options, and update *ARGC and *ARGV accordingly. */
30 read_cvsrc (argc, argv, 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 = (char *) xmalloc (strlen (homedir) + strlen (cvsrc) + 10);
77 strcpy (homeinit, homedir);
78 strcat (homeinit, "/");
79 strcat (homeinit, cvsrc);
81 /* if it can't be read, there's no point to continuing */
83 if (!isreadable (homeinit))
89 /* now scan the file until we find the line for the command in question */
92 line_chars_allocated = 0;
93 command_len = strlen (cmdname);
94 cvsrcfile = open_file (homeinit, "r");
95 while ((line_length = getline (&line, &line_chars_allocated, cvsrcfile))
98 /* skip over comment lines */
102 /* stop if we match the current command */
103 if (!strncmp (line, cmdname, command_len)
104 && isspace ((unsigned char) *(line + command_len)))
111 if (line_length < 0 && !feof (cvsrcfile))
112 error (0, errno, "cannot read %s", homeinit);
116 /* setup the new options list */
119 max_new_argv = (*argc) + GROW;
120 new_argv = (char **) xmalloc (max_new_argv * sizeof (char*));
121 new_argv[0] = xstrdup ((*argv)[0]);
125 /* skip over command in the options line */
126 for (optstart = strtok (line + command_len, "\t \n");
128 optstart = strtok (NULL, "\t \n"))
130 new_argv [new_argc++] = xstrdup (optstart);
132 if (new_argc >= max_new_argv)
134 max_new_argv += GROW;
135 new_argv = (char **) xrealloc (new_argv, max_new_argv * sizeof (char*));
143 /* now copy the remaining arguments */
145 if (new_argc + *argc > max_new_argv)
147 max_new_argv = new_argc + *argc;
148 new_argv = (char **) xrealloc (new_argv, max_new_argv * sizeof (char*));
150 for (i=1; i < *argc; i++)
152 new_argv [new_argc++] = xstrdup ((*argv)[i]);
155 if (old_argv != NULL)
157 /* Free the memory which was allocated in the previous
159 free_names (&old_argc, old_argv);
162 old_argc = *argc = new_argc;
163 old_argv = *argv = new_argv;