tools/include/linux/string.h

Source file repositories/reference/linux-study-clean/tools/include/linux/string.h

File Facts

System
Linux kernel
Corpus path
tools/include/linux/string.h
Extension
.h
Size
1790 bytes
Lines
70
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _TOOLS_LINUX_STRING_H_
#define _TOOLS_LINUX_STRING_H_

#include <linux/types.h>	/* for size_t */
#include <string.h>

void *memdup(const void *src, size_t len);

char **argv_split(const char *str, int *argcp);
void argv_free(char **argv);

int strtobool(const char *s, bool *res);

#define strscpy strcpy

/*
 * glibc based builds needs the extern while uClibc doesn't.
 * However uClibc headers also define __GLIBC__ hence the hack below
 */
#if defined(__GLIBC__) && !defined(__UCLIBC__)
// pragma diagnostic was introduced in gcc 4.6
#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wredundant-decls"
#endif
extern size_t strlcpy(char *dest, const char *src, size_t size);
#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
#pragma GCC diagnostic pop
#endif
#endif

char *str_error_r(int errnum, char *buf, size_t buflen);

char *strreplace(char *s, char old, char new);

/**
 * strstarts - does @str start with @prefix?
 * @str: string to examine
 * @prefix: prefix to look for.
 */
static inline bool strstarts(const char *str, const char *prefix)
{
	return strncmp(str, prefix, strlen(prefix)) == 0;
}

/*
 * Checks if a string ends with another.
 */
static inline bool str_ends_with(const char *str, const char *substr)
{
	size_t len = strlen(str);
	size_t sublen = strlen(substr);

	if (sublen > len)
		return false;

	return !strcmp(str + len - sublen, substr);
}

extern char * __must_check skip_spaces(const char *);

extern char *strim(char *);

extern void remove_spaces(char *s);

extern void *memchr_inv(const void *start, int c, size_t bytes);
extern unsigned long long memparse(const char *ptr, char **retptr);
#endif /* _TOOLS_LINUX_STRING_H_ */

Annotation

Implementation Notes