Adding upstream version 2.33.1.upstream/2.33.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 258 insertions, 0 deletions

diff --git a/include/strutils.h b/include/strutils.h
new file mode 100644
index 0000000..0c46798
--- /dev/null
+++ b/include/strutils.h
@@ -0,0 +1,258 @@
+#ifndef UTIL_LINUX_STRUTILS
+#define UTIL_LINUX_STRUTILS
+
+#include <stdlib.h>
+#include <inttypes.h>
+#include <string.h>
+#include <sys/types.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <errno.h>
+
+/* initialize a custom exit code for all *_or_err functions */
+extern void strutils_set_exitcode(int exit_code);
+
+extern int parse_size(const char *str, uintmax_t *res, int *power);
+extern int strtosize(const char *str, uintmax_t *res);
+extern uintmax_t strtosize_or_err(const char *str, const char *errmesg);
+
+extern int16_t strtos16_or_err(const char *str, const char *errmesg);
+extern uint16_t strtou16_or_err(const char *str, const char *errmesg);
+extern uint16_t strtox16_or_err(const char *str, const char *errmesg);
+
+extern int32_t strtos32_or_err(const char *str, const char *errmesg);
+extern uint32_t strtou32_or_err(const char *str, const char *errmesg);
+extern uint32_t strtox32_or_err(const char *str, const char *errmesg);
+
+extern int64_t strtos64_or_err(const char *str, const char *errmesg);
+extern uint64_t strtou64_or_err(const char *str, const char *errmesg);
+extern uint64_t strtox64_or_err(const char *str, const char *errmesg);
+
+extern double strtod_or_err(const char *str, const char *errmesg);
+
+extern long strtol_or_err(const char *str, const char *errmesg);
+extern unsigned long strtoul_or_err(const char *str, const char *errmesg);
+
+extern void strtotimeval_or_err(const char *str, struct timeval *tv,
+		const char *errmesg);
+
+extern int isdigit_strend(const char *str, const char **end);
+#define isdigit_string(_s)	isdigit_strend(_s, NULL)
+
+extern int isxdigit_strend(const char *str, const char **end);
+#define isxdigit_string(_s)	isxdigit_strend(_s, NULL)
+
+
+extern int parse_switch(const char *arg, const char *errmesg, ...);
+
+#ifndef HAVE_MEMPCPY
+extern void *mempcpy(void *restrict dest, const void *restrict src, size_t n);
+#endif
+#ifndef HAVE_STRNLEN
+extern size_t strnlen(const char *s, size_t maxlen);
+#endif
+#ifndef HAVE_STRNDUP
+extern char *strndup(const char *s, size_t n);
+#endif
+#ifndef HAVE_STRNCHR
+extern char *strnchr(const char *s, size_t maxlen, int c);
+#endif
+
+/* caller guarantees n > 0 */
+static inline void xstrncpy(char *dest, const char *src, size_t n)
+{
+	strncpy(dest, src, n-1);
+	dest[n-1] = 0;
+}
+
+/* This is like strncpy(), but based on memcpy(), so compilers and static
+ * analyzers do not complain when sizeof(destination) is the same as 'n' and
+ * result is not terminated by zero.
+ *
+ * Use this function to copy string to logs with fixed sizes (wtmp/utmp. ...)
+ * where string terminator is optional.
+ */
+static inline void *str2memcpy(void *dest, const char *src, size_t n)
+{
+	size_t bytes = strlen(src) + 1;
+
+	if (bytes > n)
+		bytes = n;
+
+	memcpy(dest, src, bytes);
+	return dest;
+}
+
+static inline char *mem2strcpy(char *dest, const void *src, size_t n, size_t nmax)
+{
+	if (n + 1 > nmax)
+		n = nmax - 1;
+
+	memcpy(dest, src, n);
+	dest[nmax-1] = '\0';
+	return dest;
+}
+
+static inline int strdup_to_offset(void *stru, size_t offset, const char *str)
+{
+	char *n = NULL;
+	char **o;
+
+	if (!stru)
+		return -EINVAL;
+
+	o = (char **) ((char *) stru + offset);
+	if (str) {
+		n = strdup(str);
+		if (!n)
+			return -ENOMEM;
+	}
+
+	free(*o);
+	*o = n;
+	return 0;
+}
+
+#define strdup_to_struct_member(_s, _m, _str) \
+		strdup_to_offset((void *) _s, offsetof(__typeof__(*(_s)), _m), _str)
+
+extern char *xstrmode(mode_t mode, char *str);
+
+/* Options for size_to_human_string() */
+enum
+{
+        SIZE_SUFFIX_1LETTER = 0,
+        SIZE_SUFFIX_3LETTER = 1,
+        SIZE_SUFFIX_SPACE   = 2
+};
+
+extern char *size_to_human_string(int options, uint64_t bytes);
+
+extern int string_to_idarray(const char *list, int ary[], size_t arysz,
+			   int (name2id)(const char *, size_t));
+extern int string_add_to_idarray(const char *list, int ary[],
+				 size_t arysz, size_t *ary_pos,
+				 int (name2id)(const char *, size_t));
+
+extern int string_to_bitarray(const char *list, char *ary,
+			    int (*name2bit)(const char *, size_t));
+
+extern int string_to_bitmask(const char *list,
+			     unsigned long *mask,
+			     long (*name2flag)(const char *, size_t));
+extern int parse_range(const char *str, int *lower, int *upper, int def);
+
+extern int streq_paths(const char *a, const char *b);
+
+/*
+ * Match string beginning.
+ */
+static inline const char *startswith(const char *s, const char *prefix)
+{
+	size_t sz = prefix ? strlen(prefix) : 0;
+
+        if (s && sz && strncmp(s, prefix, sz) == 0)
+                return s + sz;
+	return NULL;
+}
+
+/*
+ * Case insensitive match string beginning.
+ */
+static inline const char *startswith_no_case(const char *s, const char *prefix)
+{
+	size_t sz = prefix ? strlen(prefix) : 0;
+
+        if (s && sz && strncasecmp(s, prefix, sz) == 0)
+                return s + sz;
+	return NULL;
+}
+
+/*
+ * Match string ending.
+ */
+static inline const char *endswith(const char *s, const char *postfix)
+{
+	size_t sl = s ? strlen(s) : 0;
+	size_t pl = postfix ? strlen(postfix) : 0;
+
+	if (pl == 0)
+		return s + sl;
+	if (sl < pl)
+		return NULL;
+	if (memcmp(s + sl - pl, postfix, pl) != 0)
+		return NULL;
+	return s + sl - pl;
+}
+
+/*
+ * Skip leading white space.
+ */
+static inline const char *skip_space(const char *p)
+{
+	while (isspace(*p))
+		++p;
+	return p;
+}
+
+static inline const char *skip_blank(const char *p)
+{
+	while (isblank(*p))
+		++p;
+	return p;
+}
+
+
+/* Removes whitespace from the right-hand side of a string (trailing
+ * whitespace).
+ *
+ * Returns size of the new string (without \0).
+ */
+static inline size_t rtrim_whitespace(unsigned char *str)
+{
+	size_t i;
+
+	if (!str)
+		return 0;
+	i = strlen((char *) str);
+	while (i) {
+		i--;
+		if (!isspace(str[i])) {
+			i++;
+			break;
+		}
+	}
+	str[i] = '\0';
+	return i;
+}
+
+/* Removes whitespace from the left-hand side of a string.
+ *
+ * Returns size of the new string (without \0).
+ */
+static inline size_t ltrim_whitespace(unsigned char *str)
+{
+	size_t len;
+	unsigned char *p;
+
+	if (!str)
+		return 0;
+	for (p = str; *p && isspace(*p); p++);
+
+	len = strlen((char *) p);
+
+	if (p > str)
+		memmove(str, p, len + 1);
+
+	return len;
+}
+
+extern char *strnappend(const char *s, const char *suffix, size_t b);
+extern char *strappend(const char *s, const char *suffix);
+extern char *strfappend(const char *s, const char *format, ...)
+		 __attribute__ ((__format__ (__printf__, 2, 0)));
+extern const char *split(const char **state, size_t *l, const char *separator, int quoted);
+
+extern int skip_fline(FILE *fp);
+
+#endif