Mercurial > gnulib
view lib/strsep.c @ 40189:3ba41edecde6
progreloc: Speed up executable lookup on various platforms.
* lib/progreloc.c: Include <errno.h>.
(safe_read, full_read): New functions.
(find_executable): On GNU/kFreeBSD, FreeBSD, DragonFly, NetBSD, Solaris,
prefer the information from the /proc file system to a PATH search.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Tue, 19 Feb 2019 21:42:54 +0100 |
parents | b06060465f09 |
children |
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/* Copyright (C) 2004, 2007, 2009-2019 Free Software Foundation, Inc. Written by Yoann Vandoorselaere <yoann@prelude-ids.org>. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, see <https://www.gnu.org/licenses/>. */ #ifdef HAVE_CONFIG_H # include <config.h> #endif /* Specification. */ #include <string.h> char * strsep (char **stringp, const char *delim) { char *start = *stringp; char *ptr; if (start == NULL) return NULL; /* Optimize the case of no delimiters. */ if (delim[0] == '\0') { *stringp = NULL; return start; } /* Optimize the case of one delimiter. */ if (delim[1] == '\0') ptr = strchr (start, delim[0]); else /* The general case. */ ptr = strpbrk (start, delim); if (ptr == NULL) { *stringp = NULL; return start; } *ptr = '\0'; *stringp = ptr + 1; return start; }