diff options
Diffstat (limited to 'ar/util.c')
| -rw-r--r-- | ar/util.c | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/ar/util.c b/ar/util.c new file mode 100644 index 000000000000..8ed877a60269 --- /dev/null +++ b/ar/util.c @@ -0,0 +1,185 @@ +/*- + * Copyright (c) 2003-2007 Tim Kientzle + * 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 + * in this position and unchanged. + * 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(S) ``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(S) 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. + */ + +#include <sys/cdefs.h> +#include <sys/queue.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <errno.h> +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <string.h> +#include <unistd.h> + +#include "ar.h" + +ELFTC_VCSID("$Id: util.c 2130 2011-11-10 06:56:46Z jkoshy $"); + +static void bsdar_vwarnc(struct bsdar *, int code, + const char *fmt, va_list ap); +static void bsdar_verrc(struct bsdar *bsdar, int code, + const char *fmt, va_list ap); + +static void +bsdar_vwarnc(struct bsdar *bsdar, int code, const char *fmt, va_list ap) +{ + + fprintf(stderr, "%s: warning: ", bsdar->progname); + vfprintf(stderr, fmt, ap); + if (code != 0) + fprintf(stderr, ": %s", strerror(code)); + fprintf(stderr, "\n"); +} + +void +bsdar_warnc(struct bsdar *bsdar, int code, const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + bsdar_vwarnc(bsdar, code, fmt, ap); + va_end(ap); +} + +static void +bsdar_verrc(struct bsdar *bsdar, int code, const char *fmt, va_list ap) +{ + + fprintf(stderr, "%s: fatal: ", bsdar->progname); + vfprintf(stderr, fmt, ap); + if (code != 0) + fprintf(stderr, ": %s", strerror(code)); + fprintf(stderr, "\n"); +} + +void +bsdar_errc(struct bsdar *bsdar, int code, const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + bsdar_verrc(bsdar, code, fmt, ap); + va_end(ap); + exit(EXIT_FAILURE); +} + +#define AR_STRMODE_SIZE 12 +const char * +bsdar_strmode(mode_t m) +{ + static char buf[AR_STRMODE_SIZE]; + +#if ELFTC_HAVE_STRMODE + /* Use the system's strmode(3). */ + strmode(m, buf); + return buf; + +#else + char c; + + /* + * The first character of the string denotes the type of the + * entry. + */ + if (S_ISBLK(m)) + c = 'b'; + else if (S_ISCHR(m)) + c = 'c'; + else if (S_ISDIR(m)) + c = 'd'; +#if defined(S_ISFIFO) + else if (S_ISFIFO(m)) + c = 'p'; +#endif +#if defined(S_ISLNK) + else if (S_ISLNK(m)) + c = 'l'; +#endif + else if (S_ISREG(m)) + c = '-'; +#if defined(S_ISSOCK) + else if (S_ISSOCK(m)) + c = 's'; +#endif + else + c = '?'; + buf[0] = c; + + /* The next 3 characters show permissions for the owner. */ + buf[1] = (m & S_IRUSR) ? 'r' : '-'; + buf[2] = m & S_IWUSR ? 'w' : '-'; + if (m & S_ISUID) + c = (m & S_IXUSR) ? 's' : 'S'; + else + c = (m & S_IXUSR) ? 'x' : '-'; + buf[3] = c; + + /* The next 3 characters describe permissions for the group. */ + buf[4] = (m & S_IRGRP) ? 'r' : '-'; + buf[5] = m & S_IWGRP ? 'w' : '-'; + if (m & S_ISGID) + c = (m & S_IXGRP) ? 's' : 'S'; + else + c = (m & S_IXGRP) ? 'x' : '-'; + buf[6] = c; + + + /* The next 3 characters describe permissions for others. */ + buf[7] = (m & S_IROTH) ? 'r' : '-'; + buf[8] = m & S_IWOTH ? 'w' : '-'; + if (m & S_ISVTX) /* sticky bit */ + c = (m & S_IXOTH) ? 't' : 'T'; + else + c = (m & S_IXOTH) ? 'x' : '-'; + buf[9] = c; + + /* End the string with a blank and NUL-termination. */ + buf[10] = ' '; + buf[11] = '\0'; + + return buf; +#endif /* !ELTC_HAVE_STRMODE */ +} + +int +bsdar_is_pseudomember(struct bsdar *bsdar, const char *name) +{ + /* + * The "__.SYMDEF" member is special in the BSD format + * variant. + */ + if (bsdar->options & AR_BSD) + return (strcmp(name, AR_SYMTAB_NAME_BSD) == 0); + else + /* + * The names "/ " and "// " are special in the SVR4 + * variant. + */ + return (strcmp(name, AR_STRINGTAB_NAME_SVR4) == 0 || + strcmp(name, AR_SYMTAB_NAME_SVR4) == 0); +} |