diff options
Diffstat (limited to 'gnu/usr.bin/cvs/lib/myndbm.c')
| -rw-r--r-- | gnu/usr.bin/cvs/lib/myndbm.c | 213 |
1 files changed, 0 insertions, 213 deletions
diff --git a/gnu/usr.bin/cvs/lib/myndbm.c b/gnu/usr.bin/cvs/lib/myndbm.c deleted file mode 100644 index fef3265..0000000 --- a/gnu/usr.bin/cvs/lib/myndbm.c +++ /dev/null @@ -1,213 +0,0 @@ -/* - * Copyright (c) 1992, Brian Berliner - * - * You may distribute under the terms of the GNU General Public License as - * specified in the README file that comes with the CVS 1.4 kit. - * - * A simple ndbm-emulator for CVS. It parses a text file of the format: - * - * key value - * - * at dbm_open time, and loads the entire file into memory. As such, it is - * probably only good for fairly small modules files. Ours is about 30K in - * size, and this code works fine. - */ - -#include "cvs.h" - -#ifdef MY_NDBM - -#ifndef lint -static const char rcsid[] = "$CVSid: @(#)myndbm.c 1.7 94/09/23 $"; -USE(rcsid); -#endif - -static void mydbm_load_file (); - -/* ARGSUSED */ -DBM * -mydbm_open (file, flags, mode) - char *file; - int flags; - int mode; -{ - FILE *fp; - DBM *db; - - if ((fp = fopen (file, "r")) == NULL) - return ((DBM *) 0); - - db = (DBM *) xmalloc (sizeof (*db)); - db->dbm_list = getlist (); - - mydbm_load_file (fp, db->dbm_list); - (void) fclose (fp); - return (db); -} - -void -mydbm_close (db) - DBM *db; -{ - dellist (&db->dbm_list); - free ((char *) db); -} - -datum -mydbm_fetch (db, key) - DBM *db; - datum key; -{ - Node *p; - char *s; - datum val; - - /* make sure it's null-terminated */ - s = xmalloc (key.dsize + 1); - (void) strncpy (s, key.dptr, key.dsize); - s[key.dsize] = '\0'; - - p = findnode (db->dbm_list, s); - if (p) - { - val.dptr = p->data; - val.dsize = strlen (p->data); - } - else - { - val.dptr = (char *) NULL; - val.dsize = 0; - } - free (s); - return (val); -} - -datum -mydbm_firstkey (db) - DBM *db; -{ - Node *head, *p; - datum key; - - head = db->dbm_list->list; - p = head->next; - if (p != head) - { - key.dptr = p->key; - key.dsize = strlen (p->key); - } - else - { - key.dptr = (char *) NULL; - key.dsize = 0; - } - db->dbm_next = p->next; - return (key); -} - -datum -mydbm_nextkey (db) - DBM *db; -{ - Node *head, *p; - datum key; - - head = db->dbm_list->list; - p = db->dbm_next; - if (p != head) - { - key.dptr = p->key; - key.dsize = strlen (p->key); - } - else - { - key.dptr = (char *) NULL; - key.dsize = 0; - } - db->dbm_next = p->next; - return (key); -} - -static void -mydbm_load_file (fp, list) - FILE *fp; - List *list; -{ - char line[MAXLINELEN], value[MAXLINELEN]; - char *cp, *vp; - int len, cont; - - for (cont = 0; fgets (line, sizeof (line), fp) != NULL;) - { - if ((cp = strrchr (line, '\n')) != NULL) - *cp = '\0'; /* strip the newline */ - - /* - * Add the line to the value, at the end if this is a continuation - * line; otherwise at the beginning, but only after any trailing - * backslash is removed. - */ - vp = value; - if (cont) - vp += strlen (value); - - /* - * See if the line we read is a continuation line, and strip the - * backslash if so. - */ - len = strlen (line); - if (len > 0) - cp = &line[len - 1]; - else - cp = line; - if (*cp == '\\') - { - cont = 1; - *cp = '\0'; - } - else - { - cont = 0; - } - (void) strcpy (vp, line); - if (value[0] == '#') - continue; /* comment line */ - vp = value; - while (*vp && isspace (*vp)) - vp++; - if (*vp == '\0') - continue; /* empty line */ - - /* - * If this was not a continuation line, add the entry to the database - */ - if (!cont) - { - Node *p = getnode (); - char *kp; - - kp = vp; - while (*vp && !isspace (*vp)) - vp++; - *vp++ = '\0'; /* NULL terminate the key */ - p->type = NDBMNODE; - p->key = xstrdup (kp); - while (*vp && isspace (*vp)) - vp++; /* skip whitespace to value */ - if (*vp == '\0') - { - error (0, 0, "warning: NULL value for key `%s'", p->key); - freenode (p); - continue; - } - p->data = xstrdup (vp); - if (addnode (list, p) == -1) - { - error (0, 0, "duplicate key found for `%s'", p->key); - freenode (p); - } - } - } -} - -#endif /* MY_NDBM */ |
