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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2002-2005 Roman Zippel <zippel@linux-m68k.org>
* Copyright (C) 2002-2005 Sam Ravnborg <sam@ravnborg.org>
*/
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include "lkc.h"
/* file already present in list? If not add it */
struct file *file_lookup(const char *name)
{
struct file *file;
for (file = file_list; file; file = file->next) {
if (!strcmp(name, file->name)) {
return file;
}
}
file = xmalloc(sizeof(*file));
memset(file, 0, sizeof(*file));
file->name = xstrdup(name);
file->next = file_list;
file_list = file;
return file;
}
/* Allocate initial growable string */
struct gstr str_new(void)
{
struct gstr gs;
gs.s = xmalloc(sizeof(char) * 64);
gs.len = 64;
gs.max_width = 0;
strcpy(gs.s, "\0");
return gs;
}
/* Free storage for growable string */
void str_free(struct gstr *gs)
{
if (gs->s)
free(gs->s);
gs->s = NULL;
gs->len = 0;
}
/* Append to growable string */
void str_append(struct gstr *gs, const char *s)
{
size_t l;
if (s) {
l = strlen(gs->s) + strlen(s) + 1;
if (l > gs->len) {
gs->s = xrealloc(gs->s, l);
gs->len = l;
}
strcat(gs->s, s);
}
}
/* Append printf formatted string to growable string */
void str_printf(struct gstr *gs, const char *fmt, ...)
{
va_list ap;
char s[10000]; /* big enough... */
va_start(ap, fmt);
vsnprintf(s, sizeof(s), fmt, ap);
str_append(gs, s);
va_end(ap);
}
/* Retrieve value of growable string */
const char *str_get(struct gstr *gs)
{
return gs->s;
}
void *xmalloc(size_t size)
{
void *p = malloc(size);
if (p)
return p;
fprintf(stderr, "Out of memory.\n");
exit(1);
}
void *xcalloc(size_t nmemb, size_t size)
{
void *p = calloc(nmemb, size);
if (p)
return p;
fprintf(stderr, "Out of memory.\n");
exit(1);
}
void *xrealloc(void *p, size_t size)
{
p = realloc(p, size);
if (p)
return p;
fprintf(stderr, "Out of memory.\n");
exit(1);
}
char *xstrdup(const char *s)
{
char *p;
p = strdup(s);
if (p)
return p;
fprintf(stderr, "Out of memory.\n");
exit(1);
}
char *xstrndup(const char *s, size_t n)
{
char *p;
p = strndup(s, n);
if (p)
return p;
fprintf(stderr, "Out of memory.\n");
exit(1);
}