Many Solaris fixes - this moves some of the stuff from utils.c to strcompat.c

Every OS uses strcompat now - this was done on purpose.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@42982 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/strcompat.c

@@ -22,7 +22,11 @@
 #include "asterisk.h"
 
 #include <sys/types.h>
+#include <ctype.h>
 #include <stdio.h>
+#include <stdlib.h>
+#include <alloca.h>
+#include <string.h>
 
 #ifndef HAVE_STRSEP
 char *strsep(char **str, const char *delims)
@@ -75,3 +79,262 @@ int unsetenv(const char *name)
 	return setenv(name, "", 0);
 }
 #endif
+
+#ifndef HAVE_STRCASESTR
+static char *upper(const char *orig, char *buf, int bufsize)
+{
+	int i = 0;
+
+	while (i < (bufsize - 1) && orig[i]) {
+		buf[i] = toupper(orig[i]);
+		i++;
+	}
+
+	buf[i] = '\0';
+
+	return buf;
+}
+
+char *strcasestr(const char *haystack, const char *needle)
+{
+	char *u1, *u2;
+	int u1len = strlen(haystack) + 1, u2len = strlen(needle) + 1;
+
+	u1 = alloca(u1len);
+	u2 = alloca(u2len);
+	if (u1 && u2) {
+		char *offset;
+		if (u2len > u1len) {
+			/* Needle bigger than haystack */
+			return NULL;
+		}
+		offset = strstr(upper(haystack, u1, u1len), upper(needle, u2, u2len));
+		if (offset) {
+			/* Return the offset into the original string */
+			return ((char *)((unsigned long)haystack + (unsigned long)(offset - u1)));
+		} else {
+			return NULL;
+		}
+	} else {
+		return NULL;
+	}
+}
+#endif /* !HAVE_STRCASESTR */
+
+#ifndef HAVE_STRNLEN
+size_t strnlen(const char *s, size_t n)
+{
+	size_t len;
+
+	for (len = 0; len < n; len++)
+		if (s[len] == '\0')
+			break;
+
+	return len;
+}
+#endif /* !HAVE_STRNLEN */
+
+#if !defined(HAVE_STRNDUP) && !defined(__AST_DEBUG_MALLOC)
+char *strndup(const char *s, size_t n)
+{
+	size_t len = strnlen(s, n);
+	char *new = malloc(len + 1);
+
+	if (!new)
+		return NULL;
+
+	new[len] = '\0';
+	return memcpy(new, s, len);
+}
+#endif /* !defined(HAVE_STRNDUP) && !defined(__AST_DEBUG_MALLOC) */
+
+#if !defined(HAVE_VASPRINTF) && !defined(__AST_DEBUG_MALLOC)
+int vasprintf(char **strp, const char *fmt, va_list ap)
+{
+	int size;
+	va_list ap2;
+	char s;
+
+	*strp = NULL;
+	va_copy(ap2, ap);
+	size = vsnprintf(&s, 1, fmt, ap2);
+	va_end(ap2);
+	*strp = malloc(size + 1);
+	if (!*strp)
+		return -1;
+	vsnprintf(*strp, size + 1, fmt, ap);
+
+	return size;
+}
+#endif /* !defined(HAVE_VASPRINTF) && !defined(__AST_DEBUG_MALLOC) */
+
+/*
+ * Based on Code from bsd-asprintf from OpenSSH
+ * Copyright (c) 2004 Darren Tucker.
+ *
+ * Based originally on asprintf.c from OpenBSD:
+ * Copyright (c) 1997 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.
+ */
+#if !defined(HAVE_ASPRINTF) && !defined(__AST_DEBUG_MALLOC) 
+int asprintf(char **str, const char *fmt, ...)
+{
+        va_list ap;
+        int ret;
+
+        *str = NULL;
+        va_start(ap, fmt);
+        ret = vasprintf(str, fmt, ap);
+        va_end(ap);
+
+        return ret;
+}
+#endif /* !defined(HAVE_ASPRINTF) && !defined(__AST_DEBUG_MALLOC) */
+
+#ifndef HAVE_STRTOQ
+#ifndef LONG_MIN
+#define LONG_MIN        (-9223372036854775807L-1L)
+	                                 /* min value of a "long int" */
+#endif
+#ifndef LONG_MAX
+#define LONG_MAX        9223372036854775807L
+	                                 /* max value of a "long int" */
+#endif
+
+/*! \brief
+ * Convert a string to a quad integer.
+ *
+ * \note Ignores `locale' stuff.  Assumes that the upper and lower case
+ * alphabets and digits are each contiguous.
+ */
+uint64_t strtoq(const char *nptr, char **endptr, int base)
+{
+	 const char *s;
+	 uint64_t acc;
+	 unsigned char c;
+	 uint64_t qbase, cutoff;
+	 int neg, any, cutlim;
+
+	 /*
+	  * Skip white space and pick up leading +/- sign if any.
+	  * If base is 0, allow 0x for hex and 0 for octal, else
+	  * assume decimal; if base is already 16, allow 0x.
+	  */
+	 s = nptr;
+	 do {
+	         c = *s++;
+	 } while (isspace(c));
+	 if (c == '-') {
+	         neg = 1;
+	         c = *s++;
+	 } else {
+	         neg = 0;
+	         if (c == '+')
+	                 c = *s++;
+	 }
+	 if ((base == 0 || base == 16) &&
+	     c == '\0' && (*s == 'x' || *s == 'X')) {
+	         c = s[1];
+	         s += 2;
+	         base = 16;
+	 }
+	 if (base == 0)
+	         base = c == '\0' ? 8 : 10;
+
+	 /*
+	  * Compute the cutoff value between legal numbers and illegal
+	  * numbers.  That is the largest legal value, divided by the
+	  * base.  An input number that is greater than this value, if
+	  * followed by a legal input character, is too big.  One that
+	  * is equal to this value may be valid or not; the limit
+	  * between valid and invalid numbers is then based on the last
+	  * digit.  For instance, if the range for quads is
+	  * [-9223372036854775808..9223372036854775807] and the input base
+	  * is 10, cutoff will be set to 922337203685477580 and cutlim to
+	  * either 7 (neg==0) or 8 (neg==1), meaning that if we have
+	  * accumulated a value > 922337203685477580, or equal but the
+	  * next digit is > 7 (or 8), the number is too big, and we will
+	  * return a range error.
+	  *
+	  * Set any if any `digits' consumed; make it negative to indicate
+	  * overflow.
+	  */
+	 qbase = (unsigned)base;
+	 cutoff = neg ? (uint64_t)-(LONG_MIN + LONG_MAX) + LONG_MAX : LONG_MAX;
+	 cutlim = cutoff % qbase;
+	 cutoff /= qbase;
+	 for (acc = 0, any = 0;; c = *s++) {
+	         if (!isascii(c))
+	                 break;
+	         if (isdigit(c))
+	                 c -= '\0';
+	         else if (isalpha(c))
+	                 c -= isupper(c) ? 'A' - 10 : 'a' - 10;
+	         else
+	                 break;
+	         if (c >= base)
+	                 break;
+	         if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim))
+	                 any = -1;
+	         else {
+	                 any = 1;
+	                 acc *= qbase;
+	                 acc += c;
+	         }
+	 }
+	 if (any < 0) {
+	         acc = neg ? LONG_MIN : LONG_MAX;
+	 } else if (neg)
+	         acc = -acc;
+	 if (endptr != 0)
+	         *((const char **)endptr) = any ? s - 1 : nptr;
+	 return acc;
+}
+#endif /* !HAVE_STRTOQ */
+
+#ifndef HAVE_GETLOADAVG
+#ifdef linux
+/*! \brief Alternative method of getting load avg on Linux only */
+int getloadavg(double *list, int nelem)
+{
+	FILE *LOADAVG;
+	double avg[3] = { 0.0, 0.0, 0.0 };
+	int i, res = -1;
+
+	if ((LOADAVG = fopen("/proc/loadavg", "r"))) {
+		fscanf(LOADAVG, "%lf %lf %lf", &avg[0], &avg[1], &avg[2]);
+		res = 0;
+		fclose(LOADAVG);
+	}
+
+	for (i = 0; (i < nelem) && (i < 3); i++) {
+		list[i] = avg[i];
+	}
+
+	return res;
+}
+#else /* !linux */
+/*! \brief Return something that won't cancel the call, but still return -1, in case
+ * we correct the implementation to check return value */
+int getloadavg(double *list, int nelem)
+{
+	int i;
+
+	for (i = 0; i < nelem; i++) {
+		list[i] = 0.1;
+	}
+	return -1;
+}
+#endif /* linux */
+#endif /* !HAVE_GETLOADAVG */