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/*
* Ouroboros - Copyright (C) 2016 - 2024
*
* Handy utilities
*
* Dimitri Staessens <dimitri@ouroboros.rocks>
* Sander Vrijders <sander@ouroboros.rocks>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* version 2.1 as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., http://www.fsf.org/about/contact/.
*/
#define _POSIX_C_SOURCE 200809L
#include <ouroboros/utils.h>
#include <stdlib.h>
#include <string.h>
int n_digits(unsigned i)
{
int n = 1;
while (i > 9) {
++n;
i /= 10;
}
return n;
}
char * path_strip(const char * src)
{
char * dst;
if (src == NULL)
return NULL;
dst = (char *) src + strlen(src);
while (dst > src && *dst != '/')
--dst;
if (*dst == '/')
++dst;
return dst;
}
size_t argvlen(const char ** argv)
{
size_t argc = 0;
if (argv == NULL)
return 0;
while (*argv++ != NULL)
argc++;
return argc;
}
void argvfree(char ** argv)
{
char ** argv_dup;
if (argv == NULL)
return;
argv_dup = argv;
while (*argv_dup != NULL)
free(*(argv_dup++));
free(argv);
}
char ** argvdup(char ** argv)
{
int argc = 0;
char ** argv_dup = argv;
int i;
if (argv == NULL)
return NULL;
while (*(argv_dup++) != NULL)
argc++;
argv_dup = malloc((argc + 1) * sizeof(*argv_dup));
if (argv_dup == NULL)
return NULL;
for (i = 0; i < argc; ++i) {
argv_dup[i] = strdup(argv[i]);
if (argv_dup[i] == NULL) {
argvfree(argv_dup);
return NULL;
}
}
argv_dup[argc] = NULL;
return argv_dup;
}
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