f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include <errno.h>

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include <stdarg.h>

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include <stdint.h>

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include <stdio.h>

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include <stdlib.h>

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include "alloc-util.h"

9eb977db5b89b44f254ab40c1876a76b7d7ea2d0Kay Sievers#include "gunicode.h"

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include "macro.h"

a5c32cff1f56afe6f0c6c70d91a88a7a8238b2d7Harald Hoyer#include "string-util.h"

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include "utf8.h"

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include "util.h"

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringint strcmp_ptr(const char *a, const char *b) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering /* Like strcmp(), but tries to make sense of NULL pointers */

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (a && b)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return strcmp(a, b);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (!a && b)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return -1;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (a && !b)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return 1;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return 0;

2b6bf07dd23bb467099d213c97b3875c5e453491Zbigniew Jędrzejewski-Szmek}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringchar* endswith(const char *s, const char *postfix) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering size_t sl, pl;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering assert(s);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering assert(postfix);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering sl = strlen(s);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering pl = strlen(postfix);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (pl == 0)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return (char*) s + sl;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (sl < pl)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return NULL;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (memcmp(s + sl - pl, postfix, pl) != 0)

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering return NULL;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return (char*) s + sl - pl;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering}

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poetteringchar* endswith_no_case(const char *s, const char *postfix) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering size_t sl, pl;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering assert(s);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering assert(postfix);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering sl = strlen(s);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering pl = strlen(postfix);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (pl == 0)

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering return (char*) s + sl;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (sl < pl)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return NULL;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (strcasecmp(s + sl - pl, postfix) != 0)

d2e54fae5ca7a0f71b5ac8b356a589ff0a09ea0aKay Sievers return NULL;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return (char*) s + sl - pl;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringchar* first_word(const char *s, const char *word) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering size_t sl, wl;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering const char *p;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering assert(s);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering assert(word);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering /* Checks if the string starts with the specified word, either

90b2de37b80603168f4e9c9c81cff7eea4efa21aZbigniew Jędrzejewski-Szmek

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering sl = strlen(s);

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering wl = strlen(word);

90b2de37b80603168f4e9c9c81cff7eea4efa21aZbigniew Jędrzejewski-Szmek

90b2de37b80603168f4e9c9c81cff7eea4efa21aZbigniew Jędrzejewski-Szmek if (sl < wl)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return NULL;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering if (wl == 0)

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering return (char*) s;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (memcmp(s, word, wl) != 0)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return NULL;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering p = s + wl;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (*p == 0)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return (char*) p;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering if (!strchr(WHITESPACE, *p))

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering return NULL;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering p += strspn(p, WHITESPACE);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return (char*) p;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringstatic size_t strcspn_escaped(const char *s, const char *reject) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering bool escaped = false;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering int n;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering for (n=0; s[n]; n++) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (escaped)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering escaped = false;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering else if (s[n] == '\\')

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering escaped = true;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering else if (strchr(reject, s[n]))

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering break;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering }

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering /* if s ends in \, return index of previous char */

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return n - escaped;

90b2de37b80603168f4e9c9c81cff7eea4efa21aZbigniew Jędrzejewski-Szmek}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringconst char* split(const char **state, size_t *l, const char *separator, bool quoted) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering const char *current;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering current = *state;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (!*current) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering assert(**state == '\0');

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return NULL;

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering }

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering

de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek current += strspn(current, separator);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (!*current) {

de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek *state = current;

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering return NULL;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering }

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (quoted && strchr("\'\"", *current)) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering char quotechars[2] = {*current, '\0'};

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering *l = strcspn_escaped(current + 1, quotechars);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (current[*l + 1] == '\0' || current[*l + 1] != quotechars[0] ||

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering (current[*l + 2] && !strchr(separator, current[*l + 2]))) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering /* right quote missing or garbage at the end */

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering *state = current;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return NULL;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering }

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering *state = current++ + *l + 2;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering } else if (quoted) {

de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek *l = strcspn_escaped(current, separator);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (current[*l] && !strchr(separator, current[*l])) {

de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek /* unfinished escape */

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering *state = current;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return NULL;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering }

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering *state = current + *l;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering } else {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering *l = strcspn(current, separator);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering *state = current + *l;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering }

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return current;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringchar *strnappend(const char *s, const char *suffix, size_t b) {

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering size_t a;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering char *r;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (!s && !suffix)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return strdup("");

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering if (!s)

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering return strndup(suffix, b);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering if (!suffix)

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering return strdup(s);

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering assert(s);

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering assert(suffix);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering a = strlen(s);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (b > ((size_t) -1) - a)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return NULL;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering r = new(char, a+b+1);

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering if (!r)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return NULL;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering memcpy(r, s, a);

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering memcpy(r+a, suffix, b);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering r[a+b] = 0;

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return r;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poetteringchar *strappend(const char *s, const char *suffix) {

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering return strnappend(s, suffix, suffix ? strlen(suffix) : 0);

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering}

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering

a34faf579d2be139b0b9e8cd0c73ad4d918ef736Lukas Nykrynchar *strjoin(const char *x, ...) {

a34faf579d2be139b0b9e8cd0c73ad4d918ef736Lukas Nykryn va_list ap;

a34faf579d2be139b0b9e8cd0c73ad4d918ef736Lukas Nykryn size_t l;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering char *r, *p;

a34faf579d2be139b0b9e8cd0c73ad4d918ef736Lukas Nykryn

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering va_start(ap, x);

a34faf579d2be139b0b9e8cd0c73ad4d918ef736Lukas Nykryn

a34faf579d2be139b0b9e8cd0c73ad4d918ef736Lukas Nykryn if (x) {

a34faf579d2be139b0b9e8cd0c73ad4d918ef736Lukas Nykryn l = strlen(x);

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering

a34faf579d2be139b0b9e8cd0c73ad4d918ef736Lukas Nykryn for (;;) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering const char *t;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering size_t n;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering t = va_arg(ap, const char *);

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering if (!t)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering break;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering n = strlen(t);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (n > ((size_t) -1) - l) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering va_end(ap);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return NULL;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering }

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering l += n;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering }

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering } else

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering l = 0;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering va_end(ap);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering r = new(char, l+1);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (!r)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return NULL;

03e334a1c7dc8c20c38902aa039440763acc9b17Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (x) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering p = stpcpy(r, x);

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering va_start(ap, x);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering for (;;) {

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering const char *t;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering t = va_arg(ap, const char *);

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering if (!t)

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering break;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering p = stpcpy(p, t);

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering }

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering va_end(ap);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering } else

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering r[0] = 0;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return r;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringchar *strstrip(char *s) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering char *e;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

d2e54fae5ca7a0f71b5ac8b356a589ff0a09ea0aKay Sievers /* Drops trailing whitespace. Modifies the string in

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering s += strspn(s, WHITESPACE);

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering for (e = strchr(s, 0); e > s; e --)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (!strchr(WHITESPACE, e[-1]))

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering break;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering *e = 0;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return s;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringchar *delete_chars(char *s, const char *bad) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering char *f, *t;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering /* Drops all whitespace, regardless where in the string */

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering for (f = s, t = s; *f; f++) {

151b9b9662a90455262ce575a8a8ae74bf4ff336Lennart Poettering if (strchr(bad, *f))

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering continue;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering *(t++) = *f;

718db96199eb307751264e4163555662c9a389faLennart Poettering }

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering *t = 0;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return s;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringchar *truncate_nl(char *s) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering assert(s);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering s[strcspn(s, NEWLINE)] = 0;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return s;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringchar *ascii_strlower(char *t) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering char *p;

03e334a1c7dc8c20c38902aa039440763acc9b17Lennart Poettering

03e334a1c7dc8c20c38902aa039440763acc9b17Lennart Poettering assert(t);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering for (p = t; *p; p++)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (*p >= 'A' && *p <= 'Z')

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering *p = *p - 'A' + 'a';

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return t;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poetteringbool chars_intersect(const char *a, const char *b) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering const char *p;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering /* Returns true if any of the chars in a are in b. */

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering for (p = a; *p; p++)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (strchr(b, *p))

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return true;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering return false;

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringbool string_has_cc(const char *p, const char *ok) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering const char *t;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering assert(p);

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering /*

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering

2c4f86c1298f402220965682ab0e7729e150a562Lennart Poettering for (t = p; *t; t++) {

2c4f86c1298f402220965682ab0e7729e150a562Lennart Poettering if (ok && strchr(ok, *t))

2c4f86c1298f402220965682ab0e7729e150a562Lennart Poettering continue;

2c4f86c1298f402220965682ab0e7729e150a562Lennart Poettering

2c4f86c1298f402220965682ab0e7729e150a562Lennart Poettering if (*t > 0 && *t < ' ')

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering return true;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering if (*t == 127)

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering return true;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering }

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering return false;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering}

409133be63387fc04d927e8aecd2f6ba03d2f143Lennart Poettering

409133be63387fc04d927e8aecd2f6ba03d2f143Lennart Poetteringstatic char *ascii_ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigned percent) {

85a428c69465b047731b6abb5005f01824f1444eLennart Poettering size_t x;

85a428c69465b047731b6abb5005f01824f1444eLennart Poettering char *r;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering assert(s);

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering assert(percent <= 100);

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering assert(new_length >= 3);

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering if (old_length <= 3 || old_length <= new_length)

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering return strndup(s, old_length);

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering r = new0(char, new_length+1);

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering if (!r)

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering return NULL;

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering x = (new_length * percent) / 100;

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering if (x > new_length - 3)

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering x = new_length - 3;

409133be63387fc04d927e8aecd2f6ba03d2f143Lennart Poettering

409133be63387fc04d927e8aecd2f6ba03d2f143Lennart Poettering memcpy(r, s, x);

409133be63387fc04d927e8aecd2f6ba03d2f143Lennart Poettering r[x] = '.';

409133be63387fc04d927e8aecd2f6ba03d2f143Lennart Poettering r[x+1] = '.';

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering r[x+2] = '.';

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering memcpy(r + x + 3,

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering s + old_length - (new_length - x - 3),

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering new_length - x - 3);

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering return r;

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering}

85a428c69465b047731b6abb5005f01824f1444eLennart Poettering

85a428c69465b047731b6abb5005f01824f1444eLennart Poetteringchar *ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigned percent) {

85a428c69465b047731b6abb5005f01824f1444eLennart Poettering size_t x;

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering char *e;

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering const char *i, *j;

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering unsigned k, len, len2;

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering assert(s);

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering assert(percent <= 100);

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering assert(new_length >= 3);

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering /* if no multibyte characters use ascii_ellipsize_mem for speed */

ec202eae8e84a4c99f054f771cb832046cb8769fShawn Landden if (ascii_is_valid(s))

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering return ascii_ellipsize_mem(s, old_length, new_length, percent);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (old_length <= 3 || old_length <= new_length)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return strndup(s, old_length);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering x = (new_length * percent) / 100;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering if (x > new_length - 3)

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering x = new_length - 3;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering k = 0;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering for (i = s; k < x && i < s + old_length; i = utf8_next_char(i)) {

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering int c;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering

8e7fd6ade44ce5dde0867ba748c7978ed1206865Lennart Poettering c = utf8_encoded_to_unichar(i);

8e7fd6ade44ce5dde0867ba748c7978ed1206865Lennart Poettering if (c < 0)

8e7fd6ade44ce5dde0867ba748c7978ed1206865Lennart Poettering return NULL;

8e7fd6ade44ce5dde0867ba748c7978ed1206865Lennart Poettering k += unichar_iswide(c) ? 2 : 1;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering }

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering if (k > x) /* last character was wide and went over quota */

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering x ++;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering for (j = s + old_length; k < new_length && j > i; ) {

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering int c;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering j = utf8_prev_char(j);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering c = utf8_encoded_to_unichar(j);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (c < 0)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return NULL;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering k += unichar_iswide(c) ? 2 : 1;

a2a5291b3f5ab6ed4c92f51d0fd10a03047380d8Zbigniew Jędrzejewski-Szmek }

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering assert(i <= j);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

a2a5291b3f5ab6ed4c92f51d0fd10a03047380d8Zbigniew Jędrzejewski-Szmek /* we don't actually need to ellipsize */

a2a5291b3f5ab6ed4c92f51d0fd10a03047380d8Zbigniew Jędrzejewski-Szmek if (i == j)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return memdup(s, old_length + 1);

a2a5291b3f5ab6ed4c92f51d0fd10a03047380d8Zbigniew Jędrzejewski-Szmek

4943c1c94ba751c98763f4232b4350481b22c90aLennart Poettering /* make space for ellipsis */

a2a5291b3f5ab6ed4c92f51d0fd10a03047380d8Zbigniew Jędrzejewski-Szmek j = utf8_next_char(j);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

a2a5291b3f5ab6ed4c92f51d0fd10a03047380d8Zbigniew Jędrzejewski-Szmek len = i - s;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering len2 = s + old_length - j;

a2a5291b3f5ab6ed4c92f51d0fd10a03047380d8Zbigniew Jędrzejewski-Szmek e = new(char, len + 3 + len2 + 1);

8e7fd6ade44ce5dde0867ba748c7978ed1206865Lennart Poettering if (!e)

a2a5291b3f5ab6ed4c92f51d0fd10a03047380d8Zbigniew Jędrzejewski-Szmek return NULL;

8e7fd6ade44ce5dde0867ba748c7978ed1206865Lennart Poettering

a2a5291b3f5ab6ed4c92f51d0fd10a03047380d8Zbigniew Jędrzejewski-Szmek /*

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering memcpy(e, s, len);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering e[len] = 0xe2; /* tri-dot ellipsis: … */

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering e[len + 1] = 0x80;

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering e[len + 2] = 0xa6;

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering memcpy(e + len + 3, j, len2 + 1);

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering return e;

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering}

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering

char *ellipsize(const char *s, size_t length, unsigned percent) {

return ellipsize_mem(s, strlen(s), length, percent);

}

bool nulstr_contains(const char*nulstr, const char *needle) {

const char *i;

if (!nulstr)

return false;

NULSTR_FOREACH(i, nulstr)

if (streq(i, needle))

return true;

return false;

}

char* strshorten(char *s, size_t l) {

assert(s);

if (l < strlen(s))

s[l] = 0;

return s;

}

char *strreplace(const char *text, const char *old_string, const char *new_string) {

const char *f;

char *t, *r;

size_t l, old_len, new_len;

assert(text);

assert(old_string);

assert(new_string);

old_len = strlen(old_string);

new_len = strlen(new_string);

l = strlen(text);

r = new(char, l+1);

if (!r)

return NULL;

f = text;

t = r;

while (*f) {

char *a;

size_t d, nl;

if (!startswith(f, old_string)) {

*(t++) = *(f++);

continue;

}

d = t - r;

nl = l - old_len + new_len;

a = realloc(r, nl + 1);

if (!a)

goto oom;

l = nl;

r = a;

t = r + d;

t = stpcpy(t, new_string);

f += old_len;

}

*t = 0;

return r;

oom:

free(r);

return NULL;

}

char *strip_tab_ansi(char **ibuf, size_t *_isz) {

const char *i, *begin = NULL;

enum {

STATE_OTHER,

STATE_ESCAPE,

STATE_BRACKET

} state = STATE_OTHER;

char *obuf = NULL;

size_t osz = 0, isz;

FILE *f;

assert(ibuf);

assert(*ibuf);

/* Strips ANSI color and replaces TABs by 8 spaces */

isz = _isz ? *_isz : strlen(*ibuf);

f = open_memstream(&obuf, &osz);

if (!f)

return NULL;

for (i = *ibuf; i < *ibuf + isz + 1; i++) {

switch (state) {

case STATE_OTHER:

if (i >= *ibuf + isz) /* EOT */

break;

else if (*i == '\x1B')

state = STATE_ESCAPE;

else if (*i == '\t')

fputs(" ", f);

else

fputc(*i, f);

break;

case STATE_ESCAPE:

if (i >= *ibuf + isz) { /* EOT */

fputc('\x1B', f);

break;

} else if (*i == '[') {

state = STATE_BRACKET;

begin = i + 1;

} else {

fputc('\x1B', f);

fputc(*i, f);

state = STATE_OTHER;

}

break;

case STATE_BRACKET:

if (i >= *ibuf + isz || /* EOT */

(!(*i >= '0' && *i <= '9') && *i != ';' && *i != 'm')) {

fputc('\x1B', f);

fputc('[', f);

state = STATE_OTHER;

i = begin-1;

} else if (*i == 'm')

state = STATE_OTHER;

break;

}

}

if (ferror(f)) {

fclose(f);

free(obuf);

return NULL;

}

fclose(f);

free(*ibuf);

*ibuf = obuf;

if (_isz)

*_isz = osz;

return obuf;

}

char *strextend(char **x, ...) {

va_list ap;

size_t f, l;

char *r, *p;

assert(x);

l = f = *x ? strlen(*x) : 0;

va_start(ap, x);

for (;;) {

const char *t;

size_t n;

t = va_arg(ap, const char *);

if (!t)

break;

n = strlen(t);

if (n > ((size_t) -1) - l) {

va_end(ap);

return NULL;

}

l += n;

}

va_end(ap);

r = realloc(*x, l+1);

if (!r)

return NULL;

p = r + f;

va_start(ap, x);

for (;;) {

const char *t;

t = va_arg(ap, const char *);

if (!t)

break;

p = stpcpy(p, t);

}

va_end(ap);

*p = 0;

*x = r;

return r + l;

}

char *strrep(const char *s, unsigned n) {

size_t l;

char *r, *p;

unsigned i;

assert(s);

l = strlen(s);

p = r = malloc(l * n + 1);

if (!r)

return NULL;

for (i = 0; i < n; i++)

p = stpcpy(p, s);

*p = 0;

return r;

}

int split_pair(const char *s, const char *sep, char **l, char **r) {

char *x, *a, *b;

assert(s);

assert(sep);

assert(l);

assert(r);

if (isempty(sep))

return -EINVAL;

x = strstr(s, sep);

if (!x)

return -EINVAL;

a = strndup(s, x - s);

if (!a)

return -ENOMEM;

b = strdup(x + strlen(sep));

if (!b) {

free(a);

return -ENOMEM;

}

*l = a;

*r = b;

return 0;

}

int free_and_strdup(char **p, const char *s) {

char *t;

assert(p);

/* Replaces a string pointer with an strdup()ed new string,

if (streq_ptr(*p, s))

return 0;

if (s) {

t = strdup(s);

if (!t)

return -ENOMEM;

} else

t = NULL;

free(*p);

*p = t;

return 1;

}

#pragma GCC push_options

#pragma GCC optimize("O0")

void* memory_erase(void *p, size_t l) {

volatile uint8_t* x = (volatile uint8_t*) p;

/* This basically does what memset() does, but hopefully isn't

for (; l > 0; l--)

*(x++) = 'x';

return p;

}

#pragma GCC pop_options

char* string_erase(char *x) {

if (!x)

return NULL;

/* A delicious drop of snake-oil! To be called on memory where

return memory_erase(x, strlen(x));

}

char *string_free_erase(char *s) {

return mfree(string_erase(s));

}

bool string_is_safe(const char *p) {

const char *t;

if (!p)

return false;

for (t = p; *t; t++) {

if (*t > 0 && *t < ' ') /* no control characters */

return false;

if (strchr(QUOTES "\\\x7f", *t))

return false;

}

return true;

}