diff options
Diffstat (limited to 'usr.sbin/lpr/common_source/printcap.c')
| -rw-r--r-- | usr.sbin/lpr/common_source/printcap.c | 117 |
1 files changed, 105 insertions, 12 deletions
diff --git a/usr.sbin/lpr/common_source/printcap.c b/usr.sbin/lpr/common_source/printcap.c index 627d2ce..cbbaef1 100644 --- a/usr.sbin/lpr/common_source/printcap.c +++ b/usr.sbin/lpr/common_source/printcap.c @@ -32,7 +32,7 @@ */ #ifndef lint -static char sccsid[] = "@(#)printcap.c 8.1 (Berkeley) 6/6/93"; +static char sccsid[] = "@(#)printcap.c 8.2 (Berkeley) 4/28/95"; #endif /* not lint */ #include <sys/param.h> @@ -52,6 +52,87 @@ static char sccsid[] = "@(#)printcap.c 8.1 (Berkeley) 6/6/93"; #define MAXHOP 32 /* max number of tc= indirections */ /* + * getcap-style interface for the old printcap routines. + * + * !!!USE THIS INTERFACE ONLY IF YOU DON'T HAVE THE REAL GETCAP!!! + */ + +static char *pbp; /* pointer into pbuf for pgetstr() */ +static char pbuf[BUFSIZ]; /* buffer for capability strings */ +extern char line[]; /* buffer for printcap entries */ + +int +cgetnext(bp, db_array) + register char **bp; + char **db_array; +{ + int ret; + char *strdup(); + + pbp = pbuf; + ret = getprent(line); + *bp = strdup(line); + return (ret); +} + +int +cgetent(bp, db_array, name) + char **bp, **db_array, *name; +{ + int i; + + *bp = line; + pbp = pbuf; + i = pgetent(*bp, name); + if (i < 0) + return (-2); + else if (i == 0) + return (-1); + else + return (0); +} + +char * +cgetcap(buf, cap, type) + char *buf, *cap; + int type; +{ + return ((char *) pgetflag(cap)); +} + +int +cgetstr(buf, cap, str) + char *buf, *cap; + char **str; +{ + char *pgetstr __P((char *, char **)); + + if (pbp >= pbuf+BUFSIZ) { + write(2, "Capability string buffer overflow\n", 34); + return (-1); + } + return ((*str = pgetstr(cap, &pbp)) == NULL ? -1 : 0); +} + +int +cgetnum(buf, cap, num) + char *buf, *cap; + long *num; +{ + return ((*num = pgetnum(cap)) < 0 ? -1 : 0); +} + +int +cgetclose() +{ + void endprent __P((void)); + + endprent(); + return (0); +} + + +/* * termcap - routines for dealing with the terminal capability data base * * BUG: Should use a "last" pointer in tbuf, so that searching @@ -83,9 +164,10 @@ static char sccsid[] = "@(#)printcap.c 8.1 (Berkeley) 6/6/93"; static FILE *pfp = NULL; /* printcap data base file pointer */ static char *tbuf; static int hopcount; /* detect infinite loops in termcap, init 0 */ +static int tf; +char *tgetstr __P((char *, char **)); static char *tskip __P((char *)); -static char *tskip __P((char *bp)); static char *tdecode __P((char *, char **)); /* @@ -137,8 +219,18 @@ getprent(bp) void endprent() { - if (pfp != NULL) - fclose(pfp); + if (pfp != NULL) { + /* + * Can't use fclose here because on POSIX-compliant + * systems, fclose() causes the file pointer of the + * underlying file descriptor (which is possibly shared + * with a parent process) to be adjusted, and this + * reeks havoc in the parent because it doesn't know + * the file pointer has changed. + */ + (void) close(fileno(pfp)); + pfp = NULL; + } } /* @@ -154,10 +246,8 @@ tgetent(bp, name) register int c; register int i = 0, cnt = 0; char ibuf[BUFSIZ]; - int tf; tbuf = bp; - tf = 0; #ifndef V6 cp = getenv("TERMCAP"); /* @@ -179,11 +269,9 @@ tgetent(bp, name) } else tf = open(cp, 0); } +#endif if (tf==0) tf = open(_PATH_PRINTCAP, 0); -#else - tf = open(_PATH_PRINTCAP, 0); -#endif if (tf < 0) return (-1); for (;;) { @@ -193,6 +281,7 @@ tgetent(bp, name) cnt = read(tf, ibuf, BUFSIZ); if (cnt <= 0) { close(tf); + tf = 0; return (0); } i = 0; @@ -217,8 +306,13 @@ tgetent(bp, name) * The real work for the match. */ if (tnamatch(name)) { - close(tf); - return(tnchktc()); + lseek(tf, 0L, 0); + i = tnchktc(); + if (tf) { + close(tf); + tf = 0; + } + return(i); } } } @@ -455,4 +549,3 @@ nextc: *area = cp; return (str); } - |
