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Retire xdirname()

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Arun Prakash Jana 2019-04-11 19:49:42 +05:30
parent 6175f33b75
commit 191eef8554
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GPG key ID: A75979F35C080412
1 changed files with 7 additions and 64 deletions
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71
src/nnn.c
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@ -726,66 +726,6 @@ static void *xmemrchr(uchar *s, uchar ch, size_t n)
return NULL;
}
/*
* The following dirname(3) implementation does not
* modify the input. We use a copy of the original.
*
* Modified from the glibc (GNU LGPL) version.
*/
static char *xdirname(const char *path)
{
char * const buf = g_buf, *last_slash, *runp;
xstrlcpy(buf, path, PATH_MAX);
/* Find last '/'. */
last_slash = xmemrchr((uchar *)buf, '/', strlen(buf));
if (last_slash && last_slash != buf && last_slash[1] == '\0') {
/* Determine whether all remaining characters are slashes. */
for (runp = last_slash; runp != buf; --runp)
if (runp[-1] != '/')
break;
/* The '/' is the last character, we have to look further. */
if (runp != buf)
last_slash = xmemrchr((uchar *)buf, '/', runp - buf);
}
if (last_slash) {
/* Determine whether all remaining characters are slashes. */
for (runp = last_slash; runp != buf; --runp)
if (runp[-1] != '/')
break;
/* Terminate the buffer. */
if (runp == buf) {
/* The last slash is the first character in the string.
* We have to return "/". As a special case we have to
* return "//" if there are exactly two slashes at the
* beginning of the string. See XBD 4.10 Path Name
* Resolution for more information.
*/
if (last_slash == buf + 1)
++last_slash;
else
last_slash = buf + 1;
} else
last_slash = runp;
last_slash[0] = '\0';
} else {
/* This assignment is ill-designed but the XPG specs require to
* return a string containing "." in any case no directory part
* is found and so a static and constant string is required.
*/
buf[0] = '.';
buf[1] = '\0';
}
return buf;
}
static char *xbasename(char *path)
{
char *base = xmemrchr((uchar *)path, '/', strlen(path));
@ -3012,18 +2952,21 @@ nochange:
goto nochange;
}
dir = xdirname(path);
/* Use a copy as dirname() may change the string passed */
xstrlcpy(newpath, path, PATH_MAX);
dir = dirname(newpath);
if (access(dir, R_OK) == -1) {
printwarn();
goto nochange;
}
/* Save history */
xstrlcpy(lastname, xbasename(path), NAME_MAX + 1);
/* Save last working directory */
xstrlcpy(lastdir, path, PATH_MAX);
/* Save history */
xstrlcpy(lastname, xbasename(path), NAME_MAX + 1);
xstrlcpy(path, dir, PATH_MAX);
setdirwatch();