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// SPDX-License-Identifier: GPL-2.0-or-later
/* SPDX-FileCopyrightText: 2004-2015 Simon Wunderlich <sw@simonwunderlich.de>
*/
/* just a few helper functions which only operate on strings, so we put them
* here ... */
#include "s3dfm.h"
#include <string.h> /* strlen(), strncpy() */
/* writes the path of the item d in string str with bufferlength n,
* adds some dots to the beginning if its too long */
char *dots_at_start(char *str, unsigned int n, t_node *d)
{
char *s = str;
int i, j;
i = n - 2;
s[n-1] = 0;
do {
j = strlen(d->name) - 1;
if (NULL != (d->parent)) {
s[i] = '/';
i--;
}
while ((i >= 0) && (j >= 0)) {
s[i] = d->name[j];
j--;
i--;
}
if (i < 0)
break;
} while ((d = d->parent) != NULL);
if (i < 0) s[0] = s[1] = '.';
else s = (char *)s + i + 1; /* jump to start of the string */
return s;
}
/* add some dots to an integer value for better readability */
void dotted_int(char *s, unsigned int i)
{
char st[M_DIR];
unsigned int p;
p = 0;
st[0] = 0;
while (i > 0) {
if ((p + 1) % 4 == 0) {
st[p] = '.';
p++;
}
st[p] = (i % 10) + '0';
i = i / 10;
p++;
}
if (p > 0) p--;
st[p+1] = 0;
for (i = 0; i < p + 1; i++)
s[i] = st[p-i];
s[p+1] = 0;
}
/* save concatting 2 strings, this version takes argument n
* as the size of the buffer of dest. */
char *mstrncat(char *dest, const char *src, int n)
{
int i, j;
dest[n-1] = 0; /* for malformed destinations */
j = 0;
for (i = strlen(dest); i < (n - 1); i++) {
dest[i] = src[j];
if (dest[i] == 0) break;
j++;
}
for (; i < n; i++)
dest[i] = 0; /* pad the rest with zero */
return dest;
}
/* same as strncpy, but have a terminating zero even if
* source is too big */
char *mstrncpy(char *dest, const char *src, int n)
{
strncpy(dest, src, n);
dest[n-1] = 0;
return dest;
}
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