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/*
* Copyright (c) 2023 Egor Tensin <egor@tensin.name>
* This file is part of the "cimple" project.
* For details, see https://github.com/egor-tensin/cimple.
* Distributed under the MIT License.
*/
#include "string.h"
#include "log.h"
#include <errno.h>
#include <stdlib.h>
#include <string.h>
/* glibc calls this stpecpy; it's not provided by glibc; however, it does
* provide a possible implementation in string_copying(7), which I copied from. */
char* string_append(char* dst, char* end, const char* src) {
if (!dst)
return NULL;
if (dst == end)
return end;
char* p = memccpy(dst, src, '\0', end - dst);
if (p)
return p - 1;
end[-1] = '\0';
return end;
}
int string_to_int(const char* src, int* result) {
char* endptr = NULL;
errno = 0;
long ret = strtol(src, &endptr, 10);
if (errno) {
log_errno("strtol");
return -1;
}
if (endptr == src || *endptr != '\0') {
log_err("Invalid number: %s\n", src);
return -1;
}
*result = (int)ret;
return 0;
}
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