File: [local] / src / usr.bin / cvs / util.c (download)
Revision 1.92, Tue Nov 28 14:49:58 2006 UTC (17 years, 6 months ago) by xsa
Branch: MAIN
Changes since 1.91: +6 -9 lines
snprintf() -> cvs_path_cat()
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/* $OpenBSD: util.c,v 1.92 2006/11/28 14:49:58 xsa Exp $ */
/*
* Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org>
* Copyright (c) 2005, 2006 Joris Vink <joris@openbsd.org>
* Copyright (c) 2005, 2006 Xavier Santolaria <xsa@openbsd.org>
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``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 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 "includes.h"
#include "cvs.h"
#include "log.h"
#include "util.h"
/* letter -> mode type map */
static const int cvs_modetypes[26] = {
-1, -1, -1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1,
-1, 2, -1, -1, -1, -1, -1, 0, -1, -1, -1, -1, -1,
};
/* letter -> mode map */
static const mode_t cvs_modes[3][26] = {
{
0, 0, 0, 0, 0, 0, 0, /* a - g */
0, 0, 0, 0, 0, 0, 0, /* h - m */
0, 0, 0, S_IRUSR, 0, 0, 0, /* n - u */
0, S_IWUSR, S_IXUSR, 0, 0 /* v - z */
},
{
0, 0, 0, 0, 0, 0, 0, /* a - g */
0, 0, 0, 0, 0, 0, 0, /* h - m */
0, 0, 0, S_IRGRP, 0, 0, 0, /* n - u */
0, S_IWGRP, S_IXGRP, 0, 0 /* v - z */
},
{
0, 0, 0, 0, 0, 0, 0, /* a - g */
0, 0, 0, 0, 0, 0, 0, /* h - m */
0, 0, 0, S_IROTH, 0, 0, 0, /* n - u */
0, S_IWOTH, S_IXOTH, 0, 0 /* v - z */
}
};
/* octal -> string */
static const char *cvs_modestr[8] = {
"", "x", "w", "wx", "r", "rx", "rw", "rwx"
};
/*
* cvs_strtomode()
*
* Read the contents of the string <str> and generate a permission mode from
* the contents of <str>, which is assumed to have the mode format of CVS.
* The CVS protocol specification states that any modes or mode types that are
* not recognized should be silently ignored. This function does not return
* an error in such cases, but will issue warnings.
*/
void
cvs_strtomode(const char *str, mode_t *mode)
{
char type;
size_t l;
mode_t m;
char buf[32], ms[4], *sp, *ep;
m = 0;
l = strlcpy(buf, str, sizeof(buf));
if (l >= sizeof(buf))
fatal("cvs_strtomode: string truncation");
sp = buf;
ep = sp;
for (sp = buf; ep != NULL; sp = ep + 1) {
ep = strchr(sp, ',');
if (ep != NULL)
*ep = '\0';
memset(ms, 0, sizeof ms);
if (sscanf(sp, "%c=%3s", &type, ms) != 2 &&
sscanf(sp, "%c=", &type) != 1) {
fatal("failed to scan mode string `%s'", sp);
}
if (type <= 'a' || type >= 'z' ||
cvs_modetypes[type - 'a'] == -1) {
cvs_log(LP_ERR,
"invalid mode type `%c'"
" (`u', `g' or `o' expected), ignoring", type);
continue;
}
/* make type contain the actual mode index */
type = cvs_modetypes[type - 'a'];
for (sp = ms; *sp != '\0'; sp++) {
if (*sp <= 'a' || *sp >= 'z' ||
cvs_modes[(int)type][*sp - 'a'] == 0) {
fatal("invalid permission bit `%c'", *sp);
} else
m |= cvs_modes[(int)type][*sp - 'a'];
}
}
*mode = m;
}
/*
* cvs_modetostr()
*
* Generate a CVS-format string to represent the permissions mask on a file
* from the mode <mode> and store the result in <buf>, which can accept up to
* <len> bytes (including the terminating NUL byte). The result is guaranteed
* to be NUL-terminated.
*/
void
cvs_modetostr(mode_t mode, char *buf, size_t len)
{
char tmp[16], *bp;
mode_t um, gm, om;
um = (mode & S_IRWXU) >> 6;
gm = (mode & S_IRWXG) >> 3;
om = mode & S_IRWXO;
bp = buf;
*bp = '\0';
if (um) {
if (strlcpy(tmp, "u=", sizeof(tmp)) >= sizeof(tmp) ||
strlcat(tmp, cvs_modestr[um], sizeof(tmp)) >= sizeof(tmp))
fatal("cvs_modetostr: overflow for user mode");
if (strlcat(buf, tmp, len) >= len)
fatal("cvs_modetostr: string truncation");
}
if (gm) {
if (um) {
if (strlcat(buf, ",", len) >= len)
fatal("cvs_modetostr: string truncation");
}
if (strlcpy(tmp, "g=", sizeof(tmp)) >= sizeof(tmp) ||
strlcat(tmp, cvs_modestr[gm], sizeof(tmp)) >= sizeof(tmp))
fatal("cvs_modetostr: overflow for group mode");
if (strlcat(buf, tmp, len) >= len)
fatal("cvs_modetostr: string truncation");
}
if (om) {
if (um || gm) {
if (strlcat(buf, ",", len) >= len)
fatal("cvs_modetostr: string truncation");
}
if (strlcpy(tmp, "o=", sizeof(tmp)) >= sizeof(tmp) ||
strlcat(tmp, cvs_modestr[gm], sizeof(tmp)) >= sizeof(tmp))
fatal("cvs_modetostr: overflow for others mode");
if (strlcat(buf, tmp, len) >= len)
fatal("cvs_modetostr: string truncation");
}
}
/*
* cvs_cksum()
*
* Calculate the MD5 checksum of the file whose path is <file> and generate
* a CVS-format 32 hex-digit string, which is stored in <dst>, whose size is
* given in <len> and must be at least 33.
* Returns 0 on success, or -1 on failure.
*/
int
cvs_cksum(const char *file, char *dst, size_t len)
{
if (len < CVS_CKSUM_LEN) {
cvs_log(LP_ERR, "buffer too small for checksum");
return (-1);
}
if (MD5File(file, dst) == NULL) {
cvs_log(LP_ERR, "failed to generate checksum for %s", file);
return (-1);
}
return (0);
}
/*
* cvs_splitpath()
*
* Split a path <path> into the base portion and the filename portion.
* The path is copied in <base> and the last delimiter is replaced by a NUL
* byte. The <file> pointer is set to point to the first character after
* that delimiter.
* Returns 0 on success, or -1 on failure.
*/
void
cvs_splitpath(const char *path, char *base, size_t blen, char **file)
{
size_t rlen;
char *sp;
if ((rlen = strlcpy(base, path, blen)) >= blen)
fatal("cvs_splitpath: path truncation");
while (rlen > 0 && base[rlen - 1] == '/')
base[--rlen] = '\0';
sp = strrchr(base, '/');
if (sp == NULL) {
rlen = strlcpy(base, "./", blen);
if (rlen >= blen)
fatal("cvs_splitpath: path truncation");
rlen = strlcat(base, path, blen);
if (rlen >= blen)
fatal("cvs_splitpath: path truncation");
sp = base + 1;
}
*sp = '\0';
if (file != NULL)
*file = sp + 1;
}
/*
* cvs_getargv()
*
* Parse a line contained in <line> and generate an argument vector by
* splitting the line on spaces and tabs. The resulting vector is stored in
* <argv>, which can accept up to <argvlen> entries.
* Returns the number of arguments in the vector, or -1 if an error occurred.
*/
int
cvs_getargv(const char *line, char **argv, int argvlen)
{
size_t l;
u_int i;
int argc, error;
char linebuf[256], qbuf[128], *lp, *cp, *arg;
l = strlcpy(linebuf, line, sizeof(linebuf));
if (l >= sizeof(linebuf))
fatal("cvs_getargv: string truncation");
memset(argv, 0, argvlen * sizeof(char *));
argc = 0;
/* build the argument vector */
error = 0;
for (lp = linebuf; lp != NULL;) {
if (*lp == '"') {
/* double-quoted string */
lp++;
i = 0;
memset(qbuf, 0, sizeof(qbuf));
while (*lp != '"') {
if (*lp == '\\')
lp++;
if (*lp == '\0') {
cvs_log(LP_ERR, "no terminating quote");
error++;
break;
}
qbuf[i++] = *lp++;
if (i == sizeof(qbuf)) {
error++;
break;
}
}
arg = qbuf;
} else {
cp = strsep(&lp, " \t");
if (cp == NULL)
break;
else if (*cp == '\0')
continue;
arg = cp;
}
if (argc == argvlen) {
error++;
break;
}
argv[argc] = xstrdup(arg);
argc++;
}
if (error != 0) {
/* ditch the argument vector */
for (i = 0; i < (u_int)argc; i++)
xfree(argv[i]);
argc = -1;
}
return (argc);
}
/*
* cvs_makeargv()
*
* Allocate an argument vector large enough to accommodate for all the
* arguments found in <line> and return it.
*/
char **
cvs_makeargv(const char *line, int *argc)
{
int i, ret;
char *argv[1024], **copy;
ret = cvs_getargv(line, argv, 1024);
if (ret == -1)
return (NULL);
copy = xcalloc(ret + 1, sizeof(char *));
for (i = 0; i < ret; i++)
copy[i] = argv[i];
copy[ret] = NULL;
*argc = ret;
return (copy);
}
/*
* cvs_freeargv()
*
* Free an argument vector previously generated by cvs_getargv().
*/
void
cvs_freeargv(char **argv, int argc)
{
int i;
for (i = 0; i < argc; i++)
if (argv[i] != NULL)
xfree(argv[i]);
}
/*
* cvs_exec()
*/
int
cvs_exec(int argc, char **argv, int fds[3])
{
int ret;
pid_t pid;
if ((pid = fork()) == -1) {
cvs_log(LP_ERR, "failed to fork");
return (-1);
} else if (pid == 0) {
execvp(argv[0], argv);
cvs_log(LP_ERR, "failed to exec %s", argv[0]);
exit(1);
}
if (waitpid(pid, &ret, 0) == -1)
cvs_log(LP_ERR, "failed to waitpid");
return (ret);
}
/*
* cvs_chdir()
*
* Change to directory <path>.
* If <rm> is equal to `1', <path> is removed if chdir() fails so we
* do not have temporary directories leftovers.
* Returns 0 on success.
*/
int
cvs_chdir(const char *path, int rm)
{
if (chdir(path) == -1) {
if (rm == 1)
cvs_unlink(path);
fatal("cvs_chdir: `%s': %s", path, strerror(errno));
}
return (0);
}
/*
* cvs_rename()
* Change the name of a file.
* rename() wrapper with an error message.
* Returns 0 on success.
*/
int
cvs_rename(const char *from, const char *to)
{
if (cvs_server_active == 0)
cvs_log(LP_TRACE, "cvs_rename(%s,%s)", from, to);
if (cvs_noexec == 1)
return (0);
if (rename(from, to) == -1)
fatal("cvs_rename: `%s'->`%s': %s", from, to, strerror(errno));
return (0);
}
/*
* cvs_unlink()
*
* Removes the link named by <path>.
* unlink() wrapper with an error message.
* Returns 0 on success, or -1 on failure.
*/
int
cvs_unlink(const char *path)
{
if (cvs_server_active == 0)
cvs_log(LP_TRACE, "cvs_unlink(%s)", path);
if (cvs_noexec == 1)
return (0);
if (unlink(path) == -1 && errno != ENOENT) {
cvs_log(LP_ERR, "cannot remove `%s'", path);
return (-1);
}
return (0);
}
/*
* cvs_rmdir()
*
* Remove a directory tree from disk.
* Returns 0 on success, or -1 on failure.
*/
int
cvs_rmdir(const char *path)
{
int ret = -1;
size_t len;
DIR *dirp;
struct dirent *ent;
char fpath[MAXPATHLEN];
if (cvs_server_active == 0)
cvs_log(LP_TRACE, "cvs_rmdir(%s)", path);
if (cvs_noexec == 1)
return (0);
if ((dirp = opendir(path)) == NULL) {
cvs_log(LP_ERR, "failed to open '%s'", path);
return (-1);
}
while ((ent = readdir(dirp)) != NULL) {
if (!strcmp(ent->d_name, ".") ||
!strcmp(ent->d_name, ".."))
continue;
len = cvs_path_cat(path, ent->d_name, fpath, sizeof(fpath));
if (len >= sizeof(fpath))
fatal("cvs_rmdir: path truncation");
if (ent->d_type == DT_DIR) {
if (cvs_rmdir(fpath) == -1)
goto done;
} else if (cvs_unlink(fpath) == -1 && errno != ENOENT)
goto done;
}
if (rmdir(path) == -1 && errno != ENOENT) {
cvs_log(LP_ERR, "failed to remove '%s'", path);
goto done;
}
ret = 0;
done:
closedir(dirp);
return (ret);
}
/*
* cvs_path_cat()
*
* Concatenate the two paths <base> and <end> and store the generated path
* into the buffer <dst>, which can accept up to <dlen> bytes, including the
* NUL byte. The result is guaranteed to be NUL-terminated.
* Returns the number of bytes necessary to store the full resulting path,
* not including the NUL byte (a value equal to or larger than <dlen>
* indicates truncation).
*/
size_t
cvs_path_cat(const char *base, const char *end, char *dst, size_t dlen)
{
size_t len;
len = strlcpy(dst, base, dlen);
if (len >= dlen - 1) {
errno = ENAMETOOLONG;
fatal("overflow in cvs_path_cat");
} else {
dst[len] = '/';
dst[len + 1] = '\0';
len = strlcat(dst, end, dlen);
if (len >= dlen) {
errno = ENAMETOOLONG;
cvs_log(LP_ERR, "%s", dst);
}
}
return (len);
}
/*
* a hack to mimic and thus match gnu cvs behaviour.
*/
time_t
cvs_hack_time(time_t oldtime, int togmt)
{
int l;
struct tm *t;
char tbuf[32];
if (togmt == 1) {
t = gmtime(&oldtime);
if (t == NULL)
fatal("gmtime failed");
return (mktime(t));
}
t = localtime(&oldtime);
l = snprintf(tbuf, sizeof(tbuf), "%d/%d/%d GMT %d:%d:%d",
t->tm_mon + 1, t->tm_mday, t->tm_year + 1900, t->tm_hour,
t->tm_min, t->tm_sec);
if (l == -1 || l >= (int)sizeof(tbuf))
fatal("cvs_hack_time: overflow");
return (cvs_date_parse(tbuf));
}
void
cvs_get_repository_path(const char *dir, char *dst, size_t len)
{
char buf[MAXPATHLEN];
cvs_get_repository_name(dir, buf, sizeof(buf));
if (cvs_path_cat(current_cvsroot->cr_dir, buf, dst, len) >= len)
fatal("cvs_get_repository_path: truncation");
}
void
cvs_get_repository_name(const char *dir, char *dst, size_t len)
{
FILE *fp;
char *s, fpath[MAXPATHLEN];
if (cvs_path_cat(dir, CVS_PATH_REPOSITORY,
fpath, sizeof(fpath)) >= sizeof(fpath))
fatal("cvs_get_repository_name: truncation");
if ((fp = fopen(fpath, "r")) != NULL) {
fgets(dst, len, fp);
if ((s = strchr(dst, '\n')) != NULL)
*s = '\0';
(void)fclose(fp);
} else {
dst[0] = '\0';
if (cvs_cmdop == CVS_OP_IMPORT) {
if (strlcpy(dst, import_repository, len) >= len)
fatal("cvs_get_repository_name: truncation");
if (strlcat(dst, "/", len) >= len)
fatal("cvs_get_repository_name: truncation");
if (strcmp(dir, ".")) {
if (strlcat(dst, dir, len) >= len) {
fatal("cvs_get_repository_name: "
"truncation");
}
}
} else {
if (strlcat(dst, dir, len) >= len)
fatal("cvs_get_repository_name: truncation");
}
}
}
void
cvs_mkadmin(const char *path, const char *root, const char *repo,
char *tag, char *date, int nb)
{
FILE *fp;
size_t len;
struct stat st;
char buf[MAXPATHLEN];
if (cvs_server_active == 0)
cvs_log(LP_TRACE, "cvs_mkadmin(%s, %s, %s, %s, %s, %d)",
path, root, repo, (tag != NULL) ? tag : "",
(date != NULL) ? date : "", nb);
len = cvs_path_cat(path, CVS_PATH_CVSDIR, buf, sizeof(buf));
if (len >= sizeof(buf))
fatal("cvs_mkadmin: truncation");
if (stat(buf, &st) != -1)
return;
if (mkdir(buf, 0755) == -1 && errno != EEXIST)
fatal("cvs_mkadmin: %s: %s", buf, strerror(errno));
len = cvs_path_cat(path, CVS_PATH_ROOTSPEC, buf, sizeof(buf));
if (len >= sizeof(buf))
fatal("cvs_mkadmin: truncation");
if ((fp = fopen(buf, "w")) == NULL)
fatal("cvs_mkadmin: %s: %s", buf, strerror(errno));
fprintf(fp, "%s\n", root);
(void)fclose(fp);
len = cvs_path_cat(path, CVS_PATH_REPOSITORY, buf, sizeof(buf));
if (len >= sizeof(buf))
fatal("cvs_mkadmin: truncation");
if ((fp = fopen(buf, "w")) == NULL)
fatal("cvs_mkadmin: %s: %s", buf, strerror(errno));
fprintf(fp, "%s\n", repo);
(void)fclose(fp);
len = cvs_path_cat(path, CVS_PATH_ENTRIES, buf, sizeof(buf));
if (len >= sizeof(buf))
fatal("cvs_mkadmin: truncation");
if ((fp = fopen(buf, "w")) == NULL)
fatal("cvs_mkadmin: %s: %s", buf, strerror(errno));
(void)fclose(fp);
cvs_write_tagfile(path, tag, date, nb);
}
void
cvs_mkpath(const char *path)
{
FILE *fp;
size_t len;
char *sp, *dp, *dir, rpath[MAXPATHLEN], repo[MAXPATHLEN];
dir = xstrdup(path);
STRIP_SLASH(dir);
if (cvs_server_active == 0)
cvs_log(LP_TRACE, "cvs_mkpath(%s)", dir);
repo[0] = '\0';
rpath[0] = '\0';
if (cvs_cmdop == CVS_OP_UPDATE) {
if ((fp = fopen(CVS_PATH_REPOSITORY, "r")) != NULL) {
if ((fgets(repo, sizeof(repo), fp)) == NULL)
fatal("cvs_mkpath: bad repository file");
if ((len = strlen(repo)) && repo[len - 1] == '\n')
repo[len - 1] = '\0';
(void)fclose(fp);
}
}
for (sp = dir; sp != NULL; sp = dp) {
dp = strchr(sp, '/');
if (dp != NULL)
*(dp++) = '\0';
if (repo[0] != '\0') {
len = strlcat(repo, "/", sizeof(repo));
if (len >= (int)sizeof(repo))
fatal("cvs_mkpath: overflow");
}
len = strlcat(repo, sp, sizeof(repo));
if (len >= (int)sizeof(repo))
fatal("cvs_mkpath: overflow");
if (rpath[0] != '\0') {
len = strlcat(rpath, "/", sizeof(rpath));
if (len >= (int)sizeof(rpath))
fatal("cvs_mkpath: overflow");
}
len = strlcat(rpath, sp, sizeof(rpath));
if (len >= (int)sizeof(rpath))
fatal("cvs_mkpath: overflow");
if (mkdir(rpath, 0755) == -1 && errno != EEXIST)
fatal("cvs_mkpath: %s: %s", rpath, strerror(errno));
cvs_mkadmin(rpath, current_cvsroot->cr_dir, repo,
NULL, NULL, 0);
}
xfree(dir);
}
/*
* Split the contents of a file into a list of lines.
*/
struct cvs_lines *
cvs_splitlines(const char *fcont)
{
char *dcp;
struct cvs_lines *lines;
struct cvs_line *lp;
lines = xmalloc(sizeof(*lines));
TAILQ_INIT(&(lines->l_lines));
lines->l_nblines = 0;
lines->l_data = xstrdup(fcont);
lp = xmalloc(sizeof(*lp));
lp->l_line = NULL;
lp->l_lineno = 0;
TAILQ_INSERT_TAIL(&(lines->l_lines), lp, l_list);
for (dcp = lines->l_data; *dcp != '\0';) {
lp = xmalloc(sizeof(*lp));
lp->l_line = dcp;
lp->l_lineno = ++(lines->l_nblines);
TAILQ_INSERT_TAIL(&(lines->l_lines), lp, l_list);
dcp = strchr(dcp, '\n');
if (dcp == NULL)
break;
*(dcp++) = '\0';
}
return (lines);
}
void
cvs_freelines(struct cvs_lines *lines)
{
struct cvs_line *lp;
while ((lp = TAILQ_FIRST(&(lines->l_lines))) != NULL) {
TAILQ_REMOVE(&(lines->l_lines), lp, l_list);
xfree(lp);
}
xfree(lines->l_data);
xfree(lines);
}
BUF *
cvs_patchfile(const char *data, const char *patch,
int (*p)(struct cvs_lines *, struct cvs_lines *))
{
struct cvs_lines *dlines, *plines;
struct cvs_line *lp;
size_t len;
int lineno;
BUF *res;
len = strlen(data);
if ((dlines = cvs_splitlines(data)) == NULL)
return (NULL);
if ((plines = cvs_splitlines(patch)) == NULL)
return (NULL);
if (p(dlines, plines) < 0) {
cvs_freelines(dlines);
cvs_freelines(plines);
return (NULL);
}
lineno = 0;
res = cvs_buf_alloc(len, BUF_AUTOEXT);
TAILQ_FOREACH(lp, &dlines->l_lines, l_list) {
if (lineno != 0)
cvs_buf_fappend(res, "%s\n", lp->l_line);
lineno++;
}
cvs_freelines(dlines);
cvs_freelines(plines);
return (res);
}
/*
* cvs_strsplit()
*
* Split a string <str> of <sep>-separated values and allocate
* an argument vector for the values found.
*/
struct cvs_argvector *
cvs_strsplit(char *str, const char *sep)
{
struct cvs_argvector *av;
size_t i = 0;
char **nargv;
char *cp, *p;
cp = xstrdup(str);
av = xmalloc(sizeof(*av));
av->str = cp;
av->argv = xcalloc(i + 1, sizeof(*(av->argv)));
while ((p = strsep(&cp, sep)) != NULL) {
av->argv[i++] = p;
nargv = xrealloc(av->argv,
i + 1, sizeof(*(av->argv)));
av->argv = nargv;
}
av->argv[i] = NULL;
return (av);
}
/*
* cvs_argv_destroy()
*
* Free an argument vector previously allocated by cvs_strsplit().
*/
void
cvs_argv_destroy(struct cvs_argvector *av)
{
xfree(av->str);
xfree(av->argv);
xfree(av);
}
u_int
cvs_revision_select(RCSFILE *file, char *range)
{
int i;
u_int nrev;
char *lstr, *rstr;
struct rcs_delta *rdp;
struct cvs_argvector *revargv, *revrange;
RCSNUM *lnum, *rnum;
nrev = 0;
lnum = rnum = NULL;
revargv = cvs_strsplit(range, ",");
for (i = 0; revargv->argv[i] != NULL; i++) {
revrange = cvs_strsplit(revargv->argv[i], ":");
if (revrange->argv[0] == NULL)
fatal("invalid revision range: %s", revargv->argv[i]);
else if (revrange->argv[1] == NULL)
lstr = rstr = revrange->argv[0];
else {
if (revrange->argv[2] != NULL)
fatal("invalid revision range: %s",
revargv->argv[i]);
lstr = revrange->argv[0];
rstr = revrange->argv[1];
if (strcmp(lstr, "") == 0)
lstr = NULL;
if (strcmp(rstr, "") == 0)
rstr = NULL;
}
if (lstr == NULL)
lstr = RCS_HEAD_INIT;
lnum = rcs_translate_tag(lstr, file);
if (rstr != NULL) {
rnum = rcs_translate_tag(rstr, file);
} else {
rnum = rcsnum_alloc();
rcsnum_cpy(file->rf_head, rnum, 0);
}
cvs_argv_destroy(revrange);
TAILQ_FOREACH(rdp, &(file->rf_delta), rd_list) {
if (rcsnum_cmp(rdp->rd_num, lnum, 0) <= 0 &&
rcsnum_cmp(rdp->rd_num, rnum, 0) >= 0 &&
!(rdp->rd_flags & RCS_RD_SELECT)) {
rdp->rd_flags |= RCS_RD_SELECT;
nrev++;
}
}
}
cvs_argv_destroy(revargv);
if (lnum != NULL)
rcsnum_free(lnum);
if (rnum != NULL)
rcsnum_free(rnum);
return (nrev);
}