/* * linux/tools/lib/string.c * * Copied from linux/lib/string.c, where it is: * * Copyright (C) 1991, 1992 Linus Torvalds * * More specifically, the first copied function was strtobool, which * was introduced by: * * d0f1fed29e6e ("Add a strtobool function matching semantics of existing in kernel equivalents") * Author: Jonathan Cameron */ #include #include #include #include #include /** * memdup - duplicate region of memory * * @src: memory region to duplicate * @len: memory region length */ void *memdup(const void *src, size_t len) { void *p = malloc(len); if (p) memcpy(p, src, len); return p; } /** * strtobool - convert common user inputs into boolean values * @s: input string * @res: result * * This routine returns 0 iff the first character is one of 'Yy1Nn0'. * Otherwise it will return -EINVAL. Value pointed to by res is * updated upon finding a match. */ int strtobool(const char *s, bool *res) { switch (s[0]) { case 'y': case 'Y': case '1': *res = true; break; case 'n': case 'N': case '0': *res = false; break; default: return -EINVAL; } return 0; } /** * strlcpy - Copy a C-string into a sized buffer * @dest: Where to copy the string to * @src: Where to copy the string from * @size: size of destination buffer * * Compatible with *BSD: the result is always a valid * NUL-terminated string that fits in the buffer (unless, * of course, the buffer size is zero). It does not pad * out the result like strncpy() does. * * If libc has strlcpy() then that version will override this * implementation: */ size_t __weak strlcpy(char *dest, const char *src, size_t size) { size_t ret = strlen(src); if (size) { size_t len = (ret >= size) ? size - 1 : ret; memcpy(dest, src, len); dest[len] = '\0'; } return ret; } drivers/usb/host/ehci-grlib.c?h=nds-private-remove&id=883af14e67e8b8702b5560aa64c888c0cd0bd66c'>treecommitdiff
path: root/drivers/usb/host/ehci-grlib.c
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authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-24 16:54:39 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-24 16:54:39 -0800
commit883af14e67e8b8702b5560aa64c888c0cd0bd66c (patch)
tree74e3a6b53f5fad9f7848ab1b9f6921b7012940a4 /drivers/usb/host/ehci-grlib.c
parent0263d4ebd94b36280608e296cba39b924b6e832b (diff)
parentaab45453ff5c77200c6da4ac909f7a4392aed17e (diff)
Merge branch 'akpm' (patches from Andrew)
Merge fixes from Andrew Morton: "26 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (26 commits) MAINTAINERS: add Dan Streetman to zbud maintainers MAINTAINERS: add Dan Streetman to zswap maintainers mm: do not export ioremap_page_range symbol for external module mn10300: fix build error of missing fpu_save() romfs: use different way to generate fsid for BLOCK or MTD frv: add missing atomic64 operations mm, page_alloc: fix premature OOM when racing with cpuset mems update mm, page_alloc: move cpuset seqcount checking to slowpath mm, page_alloc: fix fast-path race with cpuset update or removal mm, page_alloc: fix check for NULL preferred_zone kernel/panic.c: add missing \n fbdev: color map copying bounds checking frv: add atomic64_add_unless() mm/mempolicy.c: do not put mempolicy before using its nodemask radix-tree: fix private list warnings Documentation/filesystems/proc.txt: add VmPin mm, memcg: do not retry precharge charges proc: add a schedule point in proc_pid_readdir() mm: alloc_contig: re-allow CMA to compact FS pages mm/slub.c: trace free objects at KERN_INFO ...
Diffstat (limited to 'drivers/usb/host/ehci-grlib.c')