diff options
| -rw-r--r-- | fgetln.c | 106 | ||||
| -rw-r--r-- | strlcat.c | 61 | ||||
| -rw-r--r-- | strlcpy.c | 57 | ||||
| -rw-r--r-- | strtonum.c | 70 |
4 files changed, 294 insertions, 0 deletions
diff --git a/fgetln.c b/fgetln.c new file mode 100644 index 0000000..0856072 --- /dev/null +++ b/fgetln.c @@ -0,0 +1,106 @@ +/* $NetBSD: fgetln.c,v 1.9 2008/04/29 06:53:03 martin Exp $ */ + +/*- + * Copyright (c) 1998 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Christos Zoulas. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifdef HAVE_NBTOOL_CONFIG_H +#include "nbtool_config.h" +#endif + +#if !HAVE_FGETLN +#include <stdlib.h> +#ifndef HAVE_NBTOOL_CONFIG_H +/* These headers are required, but included from nbtool_config.h */ +#include <stdio.h> +#include <unistd.h> +#include <errno.h> +#include <string.h> +#endif + +char * +fgetln(FILE *fp, size_t *len) +{ + static char *buf = NULL; + static size_t bufsiz = 0; + char *ptr; + + + if (buf == NULL) { + bufsiz = BUFSIZ; + if ((buf = malloc(bufsiz)) == NULL) + return NULL; + } + + if (fgets(buf, bufsiz, fp) == NULL) + return NULL; + + *len = 0; + while ((ptr = strchr(&buf[*len], '\n')) == NULL) { + size_t nbufsiz = bufsiz + BUFSIZ; + char *nbuf = realloc(buf, nbufsiz); + + if (nbuf == NULL) { + int oerrno = errno; + free(buf); + errno = oerrno; + buf = NULL; + return NULL; + } else + buf = nbuf; + + if (fgets(&buf[bufsiz], BUFSIZ, fp) == NULL) { + buf[bufsiz] = '\0'; + *len = strlen(buf); + return buf; + } + + *len = bufsiz; + bufsiz = nbufsiz; + } + + *len = (ptr - buf) + 1; + return buf; +} + +#endif + +#ifdef TEST +int +main(int argc, char *argv[]) +{ + char *p; + size_t len; + + while ((p = fgetln(stdin, &len)) != NULL) { + (void)printf("%zu %s", len, p); + free(p); + } + return 0; +} +#endif diff --git a/strlcat.c b/strlcat.c new file mode 100644 index 0000000..3702ead --- /dev/null +++ b/strlcat.c @@ -0,0 +1,61 @@ +/* $OpenBSD: strlcat.c,v 1.13 2005/08/08 08:05:37 espie Exp $ */ + +/* + * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* OPENBSD ORIGINAL: lib/libc/string/strlcat.c */ + +#ifndef HAVE_STRLCAT + +#include <sys/types.h> +#include <string.h> + +/* + * Appends src to string dst of size siz (unlike strncat, siz is the + * full size of dst, not space left). At most siz-1 characters + * will be copied. Always NUL terminates (unless siz <= strlen(dst)). + * Returns strlen(src) + MIN(siz, strlen(initial dst)). + * If retval >= siz, truncation occurred. + */ +size_t +strlcat(char *dst, const char *src, size_t siz) +{ + char *d = dst; + const char *s = src; + size_t n = siz; + size_t dlen; + + /* Find the end of dst and adjust bytes left but don't go past end */ + while (n-- != 0 && *d != '\0') + d++; + dlen = d - dst; + n = siz - dlen; + + if (n == 0) + return(dlen + strlen(s)); + while (*s != '\0') { + if (n != 1) { + *d++ = *s; + n--; + } + s++; + } + *d = '\0'; + + return(dlen + (s - src)); /* count does not include NUL */ +} + +#endif /* !HAVE_STRLCAT */ diff --git a/strlcpy.c b/strlcpy.c new file mode 100644 index 0000000..9fef621 --- /dev/null +++ b/strlcpy.c @@ -0,0 +1,57 @@ +/* $OpenBSD: strlcpy.c,v 1.10 2005/08/08 08:05:37 espie Exp $ */ + +/* + * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* OPENBSD ORIGINAL: lib/libc/string/strlcpy.c */ + +#ifndef HAVE_STRLCPY + +#include <sys/types.h> +#include <string.h> + +/* + * Copy src to string dst of size siz. At most siz-1 characters + * will be copied. Always NUL terminates (unless siz == 0). + * Returns strlen(src); if retval >= siz, truncation occurred. + */ +size_t +strlcpy(char *dst, const char *src, size_t siz) +{ + char *d = dst; + const char *s = src; + size_t n = siz; + + /* Copy as many bytes as will fit */ + if (n != 0 && --n != 0) { + do { + if ((*d++ = *s++) == 0) + break; + } while (--n != 0); + } + + /* Not enough room in dst, add NUL and traverse rest of src */ + if (n == 0) { + if (siz != 0) + *d = '\0'; /* NUL-terminate dst */ + while (*s++) + ; + } + + return(s - src - 1); /* count does not include NUL */ +} + +#endif /* !HAVE_STRLCPY */ diff --git a/strtonum.c b/strtonum.c new file mode 100644 index 0000000..c51c624 --- /dev/null +++ b/strtonum.c @@ -0,0 +1,70 @@ +/* $OpenBSD: strtonum.c,v 1.6 2004/08/03 19:38:01 millert Exp $ */ + +/* + * Copyright (c) 2004 Ted Unangst and Todd Miller + * All rights reserved. + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* OPENBSD ORIGINAL: lib/libc/stdlib/strtonum.c */ + +#ifndef HAVE_STRTONUM +#include <stdlib.h> +#include <limits.h> +#include <errno.h> + +#define INVALID 1 +#define TOOSMALL 2 +#define TOOLARGE 3 + +long long +strtonum(const char *numstr, long long minval, long long maxval, + const char **errstrp) +{ + long long ll = 0; + char *ep; + int error = 0; + struct errval { + const char *errstr; + int err; + } ev[4] = { + { NULL, 0 }, + { "invalid", EINVAL }, + { "too small", ERANGE }, + { "too large", ERANGE }, + }; + + ev[0].err = errno; + errno = 0; + if (minval > maxval) + error = INVALID; + else { + ll = strtoll(numstr, &ep, 10); + if (numstr == ep || *ep != '\0') + error = INVALID; + else if ((ll == LLONG_MIN && errno == ERANGE) || ll < minval) + error = TOOSMALL; + else if ((ll == LLONG_MAX && errno == ERANGE) || ll > maxval) + error = TOOLARGE; + } + if (errstrp != NULL) + *errstrp = ev[error].errstr; + errno = ev[error].err; + if (error) + ll = 0; + + return (ll); +} + +#endif /* HAVE_STRTONUM */ |