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Diffstat (limited to 'bin/pax/gen_subs.c')
| -rw-r--r-- | bin/pax/gen_subs.c | 487 |
1 files changed, 487 insertions, 0 deletions
diff --git a/bin/pax/gen_subs.c b/bin/pax/gen_subs.c new file mode 100644 index 0000000..390e5bd --- /dev/null +++ b/bin/pax/gen_subs.c @@ -0,0 +1,487 @@ +/*- + * Copyright (c) 1992 Keith Muller. + * Copyright (c) 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Keith Muller of the University of California, San Diego. + * + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. + */ + +#ifndef lint +static char sccsid[] = "@(#)gen_subs.c 8.1 (Berkeley) 5/31/93"; +#endif /* not lint */ + +#include <sys/types.h> +#include <sys/time.h> +#include <sys/stat.h> +#include <sys/param.h> +#include <stdio.h> +#include <ctype.h> +#include <tzfile.h> +#include <utmp.h> +#include <unistd.h> +#include <stdlib.h> +#include <string.h> +#include "pax.h" +#include "extern.h" + +/* + * a collection of general purpose subroutines used by pax + */ + +/* + * constants used by ls_list() when printing out archive members + */ +#define MODELEN 20 +#define DATELEN 64 +#define SIXMONTHS ((DAYSPERNYEAR / 2) * SECSPERDAY) +#define CURFRMT "%b %e %H:%M" +#define OLDFRMT "%b %e %Y" +#ifndef UT_NAMESIZE +#define UT_NAMESIZE 8 +#endif +#define UT_GRPSIZE 6 + +/* + * ls_list() + * list the members of an archive in ls format + */ + +#if __STDC__ +void +ls_list(register ARCHD *arcn, time_t now) +#else +void +ls_list(arcn, now) + register ARCHD *arcn; + time_t now; +#endif +{ + register struct stat *sbp; + char f_mode[MODELEN]; + char f_date[DATELEN]; + char *timefrmt; + + /* + * if not verbose, just print the file name + */ + if (!vflag) { + (void)printf("%s\n", arcn->name); + (void)fflush(stdout); + return; + } + + /* + * user wants long mode + */ + sbp = &(arcn->sb); + strmode(sbp->st_mode, f_mode); + + if (ltmfrmt == NULL) { + /* + * no locale specified format. time format based on age + * compared to the time pax was started. + */ + if ((sbp->st_mtime + SIXMONTHS) <= now) + timefrmt = OLDFRMT; + else + timefrmt = CURFRMT; + } else + timefrmt = ltmfrmt; + + /* + * print file mode, link count, uid, gid and time + */ + if (strftime(f_date,DATELEN,timefrmt,localtime(&(sbp->st_mtime))) == 0) + f_date[0] = '\0'; + (void)printf("%s%2u %-*s %-*s ", f_mode, sbp->st_nlink, UT_NAMESIZE, + name_uid(sbp->st_uid, 1), UT_GRPSIZE, + name_gid(sbp->st_gid, 1)); + + /* + * print device id's for devices, or sizes for other nodes + */ + if ((arcn->type == PAX_CHR) || (arcn->type == PAX_BLK)) +# ifdef NET2_STAT + (void)printf("%4u,%4u ", MAJOR(sbp->st_rdev), +# else + (void)printf("%4lu,%4lu ", MAJOR(sbp->st_rdev), +# endif + MINOR(sbp->st_rdev)); + else { +# ifdef NET2_STAT + (void)printf("%9lu ", sbp->st_size); +# else + (void)printf("%9qu ", sbp->st_size); +# endif + } + + /* + * print name and link info for hard and soft links + */ + (void)printf("%s %s", f_date, arcn->name); + if ((arcn->type == PAX_HLK) || (arcn->type == PAX_HRG)) + (void)printf(" == %s\n", arcn->ln_name); + else if (arcn->type == PAX_SLK) + (void)printf(" => %s\n", arcn->ln_name); + else + (void)putchar('\n'); + (void)fflush(stdout); + return; +} + +/* + * tty_ls() + * print a short summary of file to tty. + */ + +#if __STDC__ +void +ls_tty(register ARCHD *arcn) +#else +void +ls_tty(arcn) + register ARCHD *arcn; +#endif +{ + char f_date[DATELEN]; + char f_mode[MODELEN]; + char *timefrmt; + + if (ltmfrmt == NULL) { + /* + * no locale specified format + */ + if ((arcn->sb.st_mtime + SIXMONTHS) <= time((time_t *)NULL)) + timefrmt = OLDFRMT; + else + timefrmt = CURFRMT; + } else + timefrmt = ltmfrmt; + + /* + * convert time to string, and print + */ + if (strftime(f_date, DATELEN, timefrmt, + localtime(&(arcn->sb.st_mtime))) == 0) + f_date[0] = '\0'; + strmode(arcn->sb.st_mode, f_mode); + tty_prnt("%s%s %s\n", f_mode, f_date, arcn->name); + return; +} + +/* + * zf_strncpy() + * copy src to dest up to len chars (stopping at first '\0'), when src is + * shorter than len, pads to len with '\0'. big performance win (and + * a lot easier to code) over strncpy(), then a strlen() then a + * bzero(). (or doing the bzero() first). + */ + +#if __STDC__ +void +zf_strncpy(register char *dest, register char *src, int len) +#else +void +zf_strncpy(dest, src, len) + register char *dest; + register char *src; + int len; +#endif +{ + register char *stop; + + stop = dest + len; + while ((dest < stop) && (*src != '\0')) + *dest++ = *src++; + while (dest < stop) + *dest++ = '\0'; + return; +} + +/* + * l_strncpy() + * copy src to dest up to len chars (stopping at first '\0') + * Return: + * number of chars copied. (Note this is a real performance win over + * doing a strncpy() then a strlen() + */ + +#if __STDC__ +int +l_strncpy(register char *dest, register char *src, int len) +#else +int +l_strncpy(dest, src, len) + register char *dest; + register char *src; + int len; +#endif +{ + register char *stop; + register char *start; + + stop = dest + len; + start = dest; + while ((dest < stop) && (*src != '\0')) + *dest++ = *src++; + if (dest < stop) + *dest = '\0'; + return(dest - start); +} + +/* + * asc_ul() + * convert hex/octal character string into a u_long. We do not have to + * check for overflow! (the headers in all supported formats are not large + * enough to create an overflow). + * NOTE: strings passed to us are NOT TERMINATED. + * Return: + * unsigned long value + */ + +#if __STDC__ +u_long +asc_ul(register char *str, int len, register int base) +#else +u_long +asc_ul(str, len, base) + register char *str; + int len; + register int base; +#endif +{ + register char *stop; + u_long tval = 0; + + stop = str + len; + + /* + * skip over leading blanks and zeros + */ + while ((str < stop) && ((*str == ' ') || (*str == '0'))) + ++str; + + /* + * for each valid digit, shift running value (tval) over to next digit + * and add next digit + */ + if (base == HEX) { + while (str < stop) { + if ((*str >= '0') && (*str <= '9')) + tval = (tval << 4) + (*str++ - '0'); + else if ((*str >= 'A') && (*str <= 'F')) + tval = (tval << 4) + 10 + (*str++ - 'A'); + else if ((*str >= 'a') && (*str <= 'f')) + tval = (tval << 4) + 10 + (*str++ - 'a'); + else + break; + } + } else { + while ((str < stop) && (*str >= '0') && (*str <= '7')) + tval = (tval << 3) + (*str++ - '0'); + } + return(tval); +} + +/* + * ul_asc() + * convert an unsigned long into an hex/oct ascii string. pads with LEADING + * ascii 0's to fill string completely + * NOTE: the string created is NOT TERMINATED. + */ + +#if __STDC__ +int +ul_asc(u_long val, register char *str, register int len, register int base) +#else +int +ul_asc(val, str, len, base) + u_long val; + register char *str; + register int len; + register int base; +#endif +{ + register char *pt; + u_long digit; + + /* + * WARNING str is not '\0' terminated by this routine + */ + pt = str + len - 1; + + /* + * do a tailwise conversion (start at right most end of string to place + * least significant digit). Keep shifting until conversion value goes + * to zero (all digits were converted) + */ + if (base == HEX) { + while (pt >= str) { + if ((digit = (val & 0xf)) < 10) + *pt-- = '0' + (char)digit; + else + *pt-- = 'a' + (char)(digit - 10); + if ((val = (val >> 4)) == (u_long)0) + break; + } + } else { + while (pt >= str) { + *pt-- = '0' + (char)(val & 0x7); + if ((val = (val >> 3)) == (u_long)0) + break; + } + } + + /* + * pad with leading ascii ZEROS. We return -1 if we ran out of space. + */ + while (pt >= str) + *pt-- = '0'; + if (val != (u_long)0) + return(-1); + return(0); +} + +#ifndef NET2_STAT +/* + * asc_uqd() + * convert hex/octal character string into a u_quad_t. We do not have to + * check for overflow! (the headers in all supported formats are not large + * enough to create an overflow). + * NOTE: strings passed to us are NOT TERMINATED. + * Return: + * u_quad_t value + */ + +#if __STDC__ +u_quad_t +asc_uqd(register char *str, int len, register int base) +#else +u_quad_t +asc_uqd(str, len, base) + register char *str; + int len; + register int base; +#endif +{ + register char *stop; + u_quad_t tval = 0; + + stop = str + len; + + /* + * skip over leading blanks and zeros + */ + while ((str < stop) && ((*str == ' ') || (*str == '0'))) + ++str; + + /* + * for each valid digit, shift running value (tval) over to next digit + * and add next digit + */ + if (base == HEX) { + while (str < stop) { + if ((*str >= '0') && (*str <= '9')) + tval = (tval << 4) + (*str++ - '0'); + else if ((*str >= 'A') && (*str <= 'F')) + tval = (tval << 4) + 10 + (*str++ - 'A'); + else if ((*str >= 'a') && (*str <= 'f')) + tval = (tval << 4) + 10 + (*str++ - 'a'); + else + break; + } + } else { + while ((str < stop) && (*str >= '0') && (*str <= '7')) + tval = (tval << 3) + (*str++ - '0'); + } + return(tval); +} + +/* + * uqd_asc() + * convert an u_quad_t into a hex/oct ascii string. pads with LEADING + * ascii 0's to fill string completely + * NOTE: the string created is NOT TERMINATED. + */ + +#if __STDC__ +int +uqd_asc(u_quad_t val, register char *str, register int len, register int base) +#else +int +uqd_asc(val, str, len, base) + u_quad_t val; + register char *str; + register int len; + register int base; +#endif +{ + register char *pt; + u_quad_t digit; + + /* + * WARNING str is not '\0' terminated by this routine + */ + pt = str + len - 1; + + /* + * do a tailwise conversion (start at right most end of string to place + * least significant digit). Keep shifting until conversion value goes + * to zero (all digits were converted) + */ + if (base == HEX) { + while (pt >= str) { + if ((digit = (val & 0xf)) < 10) + *pt-- = '0' + (char)digit; + else + *pt-- = 'a' + (char)(digit - 10); + if ((val = (val >> 4)) == (u_quad_t)0) + break; + } + } else { + while (pt >= str) { + *pt-- = '0' + (char)(val & 0x7); + if ((val = (val >> 3)) == (u_quad_t)0) + break; + } + } + + /* + * pad with leading ascii ZEROS. We return -1 if we ran out of space. + */ + while (pt >= str) + *pt-- = '0'; + if (val != (u_quad_t)0) + return(-1); + return(0); +} +#endif |
