diff options
Diffstat (limited to 'g2/props.c')
| -rw-r--r-- | g2/props.c | 279 |
1 files changed, 0 insertions, 279 deletions
diff --git a/g2/props.c b/g2/props.c deleted file mode 100644 index a23dc050..00000000 --- a/g2/props.c +++ /dev/null @@ -1,279 +0,0 @@ -/* - *------------------------------------------------------------------ - * Copyright (c) 1997-2016 Cisco and/or its affiliates. - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -#include <stdio.h> -#include <ctype.h> -#include <malloc.h> -#include <time.h> -#include <gtk/gtk.h> -#include <string.h> - -static char *sxerox (char *s); -void exit(int); - -#define NBUCKETS 97 - -typedef struct prop_ { - struct prop_ *next; - char *name; - char *value; -} prop_t; - -static prop_t *buckets [NBUCKETS]; -static int hash_shifts[4] = {24, 16, 8, 0}; - -/* - * getprop - */ - -char *getprop (char *name) -{ - unsigned char *cp; - unsigned long hash=0; - prop_t *bp; - int i=0; - - for (cp = (unsigned char *) name; *cp; cp++) - hash ^= (*cp)<<(hash_shifts[(i++)&0x3]); - - bp = buckets [hash%NBUCKETS]; - - while (bp && strcmp (bp->name, name)) { - bp = bp->next; - } - - if (bp == NULL) - return (0); - else - return (bp->value); -} - -/* - * getprop_default - */ - -char *getprop_default (char *name, char *def) -{ - char *rv; - rv = getprop (name); - if (rv) - return (rv); - else - return (def); -} - -/* - * addprop - */ - -void addprop (char *name, char *value) -{ - unsigned char *cp; - unsigned long hash=0; - prop_t **bpp; - prop_t *bp; - int i=0; - - bp = (prop_t *)g_malloc (sizeof (prop_t)); - - bp->next = 0; - bp->name = sxerox (name); - bp->value = sxerox (value); - - for (cp = (unsigned char *)name; *cp; cp++) - hash ^= (*cp)<<(hash_shifts[(i++)&0x3]); - - bpp = &buckets [hash%NBUCKETS]; - - if (*bpp == NULL) - *bpp = bp; - else { - bp->next = *bpp; - *bpp = bp; - } -} - -/* - * sxerox - */ - -static char *sxerox (char *s) -{ - char *rv = (char *) g_malloc (strlen (s) + 1); - strcpy (rv, s); - return rv; -} - -/* - * readprops - */ - -#define START 0 -#define READNAME 1 -#define READVALUE 2 -#define C_COMMENT 3 -#define CPP_COMMENT 4 - -int readprops (char *filename) -{ - FILE *ifp; - unsigned char c; - int state=START; - int linenum=1; - char namebuf [128]; - char valbuf [512]; - int i; - - ifp = fopen (filename, "r"); - - if (ifp == NULL) - return (-1); - - while (1) { - - readchar: - c = getc (ifp); - - again: - switch (state) { - case START: - if (feof (ifp)) { - fclose (ifp); - return (0); - } - - if (c == ' ' || c == '\t') - goto readchar; - - if (c == '\n') { - linenum++; - goto readchar; - } - if (isalpha (c) || (c == '_')) { - state = READNAME; - goto again; - } - if (c == '/') { - c = getc (ifp); - if (c == '/') { - state = CPP_COMMENT; - goto readchar; - } else if (c == '*') { - state = C_COMMENT; - goto readchar; - } else { - fprintf (stderr, "unknown token '/' line %d\n", - linenum); - exit (1); - } - } - fprintf (stderr, "unknown token '%c' line %d\n", - c, linenum); - exit (1); - break; - - case CPP_COMMENT: - while (1) { - c = getc (ifp); - if (feof (ifp)) - return (0); - if (c == '\n') { - linenum++; - state = START; - goto readchar; - } - } - break; - - case C_COMMENT: - while (1) { - c = getc (ifp); - if (feof (ifp)) { - fprintf (stderr, "unterminated comment, line %d\n", - linenum); - exit (1); - } - if (c == '*') { - staragain: - c = getc (ifp); - if (c == '/') { - state = START; - goto readchar; - } - if (c == '*') - goto staragain; - } - } - break; - - case READNAME: - i = 0; - namebuf[i++] = c; - while (1) { - c = getc (ifp); - if (feof (ifp)) { - fprintf (stderr, "EOF while reading a name, line %d\n", - linenum); - exit (1); - } - if ((!isalnum (c)) && (c != '_')) { - namebuf [i] = 0; - state = READVALUE; - goto again; - } - namebuf [i++] = c; - } - break; - - case READVALUE: - i = 0; - while ((c == ' ') || (c == '\t') || (c == '=')) { - c = getc (ifp); - if (feof (ifp)) { - fprintf (stderr, "EOF while reading a value, line %d\n", - linenum); - exit (1); - } - } - goto firsttime; - while (1) { - c = getc (ifp); - - firsttime: - if (c == '\\') { - c = getc (ifp); - if (feof (ifp)) { - fprintf (stderr, "EOF after '\\', line %d\n", - linenum); - exit (1); - } - valbuf[i++] = c; - continue; - } - if (c == '\n') { - linenum++; - while (valbuf [i-1] == ' ' || valbuf[i-1] == '\t') - i--; - valbuf[i] = 0; - addprop (namebuf, valbuf); - state = START; - goto readchar; - } - valbuf[i++] = c; - } - - } - } -} |