diff options
Diffstat (limited to 'usr.sbin/i4b/isdnd/alias.c')
| -rw-r--r-- | usr.sbin/i4b/isdnd/alias.c | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/usr.sbin/i4b/isdnd/alias.c b/usr.sbin/i4b/isdnd/alias.c new file mode 100644 index 0000000..b802776 --- /dev/null +++ b/usr.sbin/i4b/isdnd/alias.c @@ -0,0 +1,191 @@ +/* + * Copyright (c) 1997, 1998 Hellmuth Michaelis. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + *--------------------------------------------------------------------------- + * + * isdnd - common aliasfile handling + * ================================= + * + * NOTE: this has to stay in sync with isdntel/alias.c to be able + * to share a common aliasfile! + * + * $Id: alias.c,v 1.5 1998/12/05 18:03:03 hm Exp $ + * + * last edit-date: [Sat Dec 5 18:05:40 1998] + * + *----------------------------------------------------------------------------*/ + +#include "isdnd.h" + +static struct alias *firsta = NULL; + +#define MAXBUFSZ 256 + +static void free_alias(struct alias *ptr); + +/*---------------------------------------------------------------------------* + * read in and init aliases + *---------------------------------------------------------------------------*/ +void +init_alias(char *filename) +{ + FILE *fp; + char buffer[MAXBUFSZ + 1]; + char number[MAXBUFSZ + 1]; + char name[MAXBUFSZ + 1]; + char *s, *d; + struct alias *newa = NULL; + struct alias *lasta = NULL; + + firsta = NULL; + + if((fp = fopen(filename, "r")) == NULL) + { + log(LL_ERR, "init_alias: error opening aliasfile %s: %s!", filename, strerror(errno)); + exit(1); + } + + while((fgets(buffer, MAXBUFSZ, fp)) != NULL) + { + if(buffer[0] == '#' || buffer[0] == ' ' || + buffer[0] == '\t' || buffer[0] == '\n') + { + continue; + } + + s = buffer; + d = number; + + while(*s && (isdigit(*s))) + *d++ = *s++; + + *d = '\0'; + + while(*s && (isspace(*s))) + s++; + + d = name; + + while(*s && (isprint(*s))) + *d++ = *s++; + + *d = '\0'; + + if((strlen(number) > 1) && (strlen(name) > 1)) + { + if((newa = (struct alias *) malloc(sizeof(struct alias))) == NULL) + { + log(LL_ERR, "init_alias: malloc failed for struct alias!\n"); + exit(1); + } + + if((newa->number = (char *) malloc(strlen(number)+1)) == NULL) + { + log(LL_ERR, "init_alias: malloc failed for number alias!\n"); + exit(1); + } + + if((newa->name = (char *) malloc(strlen(name)+1)) == NULL) + { + log(LL_ERR, "init_alias: malloc failed for name alias!\n"); + exit(1); + } + + strcpy(newa->name, name); + strcpy(newa->number, number); + newa->next = NULL; + + if(firsta == NULL) + { + firsta = newa; + } + else + { + lasta->next = newa; + } + lasta = newa; + } + } + fclose(fp); +} + +/*---------------------------------------------------------------------------* + * free all aliases + *---------------------------------------------------------------------------*/ +void +free_aliases(void) +{ + free_alias(firsta); +} + +/*---------------------------------------------------------------------------* + * free aliases + *---------------------------------------------------------------------------*/ +static void +free_alias(struct alias *ptr) +{ + + if(ptr == NULL) + return; + + if(ptr->next != NULL) + free_alias(ptr->next); + + if(ptr->number != NULL) + free(ptr->number); + + if(ptr->name != NULL) + free(ptr->name); + + free(ptr); +} + +/*---------------------------------------------------------------------------* + * try to find alias for number. if no alias found, return number. + *---------------------------------------------------------------------------*/ +char * +get_alias(char *number) +{ + struct alias *ca = NULL; + + if(firsta == NULL) + return(number); + + ca = firsta; + + for(;;) + { + if(strlen(number) == strlen(ca->number)) + { + if(!(strcmp(number, ca->number))) + return(ca->name); + } + if(ca->next == NULL) + break; + ca = ca->next; + } + return(number); +} + +/* EOF */ |
