#include <unistd.h>
#include <errno.h>
#include <stdlib.h>
+#include <signal.h>
+#include <stdio.h>
#include "macro.h"
#include "util.h"
return memcmp(s, prefix, pl) == 0;
}
-int nointr_close(int fd) {
+int close_nointr(int fd) {
assert(fd >= 0);
for (;;) {
int parse_boolean(const char *v) {
assert(v);
- if (!strcmp(v, "1") || v[0] == 'y' || v[0] == 'Y' || v[0] == 't' || v[0] == 'T' || !strcasecmp(v, "on"))
+ if (streq(v, "1") || v[0] == 'y' || v[0] == 'Y' || v[0] == 't' || v[0] == 'T' || !strcasecmp(v, "on"))
return 1;
- else if (!strcmp(v, "0") || v[0] == 'n' || v[0] == 'N' || v[0] == 'f' || v[0] == 'F' || !strcasecmp(v, "off"))
+ else if (streq(v, "0") || v[0] == 'n' || v[0] == 'N' || v[0] == 'f' || v[0] == 'F' || !strcasecmp(v, "off"))
return 0;
return -EINVAL;
int safe_atou(const char *s, unsigned *ret_u) {
char *x = NULL;
- unsigned l;
+ unsigned long l;
assert(s);
assert(ret_u);
if (!x || *x || errno)
return errno ? -errno : -EINVAL;
- if ((unsigned) l != l)
+ if ((unsigned long) (unsigned) l != l)
return -ERANGE;
*ret_u = (unsigned) l;
int safe_atoi(const char *s, int *ret_i) {
char *x = NULL;
- int l;
+ long l;
assert(s);
assert(ret_i);
if (!x || *x || errno)
return errno ? -errno : -EINVAL;
- if ((int) l != l)
+ if ((long) (int) l != l)
return -ERANGE;
- *ret_i = (unsigned) l;
+ *ret_i = (int) l;
return 0;
}
-/* What is interpreted as whitespace? */
-#define WHITESPACE " \t\n"
+int safe_atolu(const char *s, long unsigned *ret_lu) {
+ char *x = NULL;
+ unsigned long l;
+
+ assert(s);
+ assert(ret_lu);
+
+ errno = 0;
+ l = strtoul(s, &x, 0);
+
+ if (!x || *x || errno)
+ return errno ? -errno : -EINVAL;
+
+ *ret_lu = l;
+ return 0;
+}
+
+int safe_atoli(const char *s, long int *ret_li) {
+ char *x = NULL;
+ long l;
+
+ assert(s);
+ assert(ret_li);
+
+ errno = 0;
+ l = strtol(s, &x, 0);
+
+ if (!x || *x || errno)
+ return errno ? -errno : -EINVAL;
+
+ *ret_li = l;
+ return 0;
+}
+
+int safe_atollu(const char *s, long long unsigned *ret_llu) {
+ char *x = NULL;
+ unsigned long long l;
+
+ assert(s);
+ assert(ret_llu);
+
+ errno = 0;
+ l = strtoull(s, &x, 0);
+
+ if (!x || *x || errno)
+ return errno ? -errno : -EINVAL;
+
+ *ret_llu = l;
+ return 0;
+}
+
+int safe_atolli(const char *s, long long int *ret_lli) {
+ char *x = NULL;
+ long long l;
+
+ assert(s);
+ assert(ret_lli);
+
+ errno = 0;
+ l = strtoll(s, &x, 0);
+
+ if (!x || *x || errno)
+ return errno ? -errno : -EINVAL;
+
+ *ret_lli = l;
+ return 0;
+}
/* Split a string into words. */
char *split_spaces(const char *c, size_t *l, char **state) {
return (char*) current;
}
+
+/* Split a string into words, but consider strings enclosed in '' and
+ * "" as words even if they include spaces. */
+char *split_quoted(const char *c, size_t *l, char **state) {
+ char *current;
+
+ current = *state ? *state : (char*) c;
+
+ if (!*current || *c == 0)
+ return NULL;
+
+ current += strspn(current, WHITESPACE);
+
+ if (*current == '\'') {
+ current ++;
+ *l = strcspn(current, "'");
+ *state = current+*l;
+
+ if (**state == '\'')
+ (*state)++;
+ } else if (*current == '\"') {
+ current ++;
+ *l = strcspn(current+1, "\"");
+ *state = current+*l;
+
+ if (**state == '\"')
+ (*state)++;
+ } else {
+ *l = strcspn(current, WHITESPACE);
+ *state = current+*l;
+ }
+
+ /* FIXME: Cannot deal with strings that have spaces AND ticks
+ * in them */
+
+ return (char*) current;
+}
+
+const char *sigchld_code(int code) {
+
+ if (code == CLD_EXITED)
+ return "exited";
+ else if (code == CLD_KILLED)
+ return "killed";
+ else if (code == CLD_DUMPED)
+ return "dumped";
+ else if (code == CLD_TRAPPED)
+ return "trapped";
+ else if (code == CLD_STOPPED)
+ return "stopped";
+ else if (code == CLD_CONTINUED)
+ return "continued";
+
+ return "unknown";
+}
+
+int get_parent_of_pid(pid_t pid, pid_t *_ppid) {
+ int r;
+ FILE *f;
+ char fn[132], line[256], *p;
+ long long unsigned ppid;
+
+ assert(pid >= 0);
+ assert(_ppid);
+
+ assert_se(snprintf(fn, sizeof(fn)-1, "/proc/%llu/stat", (unsigned long long) pid) < (int) (sizeof(fn)-1));
+ fn[sizeof(fn)-1] = 0;
+
+ if (!(f = fopen(fn, "r")))
+ return -errno;
+
+ if (!(fgets(line, sizeof(line), f))) {
+ r = -errno;
+ fclose(f);
+ return r;
+ }
+
+ fclose(f);
+
+ /* Let's skip the pid and comm fields. The latter is enclosed
+ * in () but does not escape any () in its value, so let's
+ * skip over it manually */
+
+ if (!(p = strrchr(line, ')')))
+ return -EIO;
+
+ p++;
+
+ if (sscanf(p, " "
+ "%*c " /* state */
+ "%llu ", /* ppid */
+ &ppid) != 1)
+ return -EIO;
+
+ if ((long long unsigned) (pid_t) ppid != ppid)
+ return -ERANGE;
+
+ *_ppid = (pid_t) ppid;
+
+ return 0;
+}
+
+int write_one_line_file(const char *fn, const char *line) {
+ FILE *f;
+ int r;
+
+ assert(fn);
+ assert(line);
+
+ if (!(f = fopen(fn, "we")))
+ return -errno;
+
+ if (fputs(line, f) < 0) {
+ r = -errno;
+ goto finish;
+ }
+
+ r = 0;
+finish:
+ fclose(f);
+ return r;
+}
+
+int read_one_line_file(const char *fn, char **line) {
+ FILE *f;
+ int r;
+ char t[64], *c;
+
+ assert(fn);
+ assert(line);
+
+ if (!(f = fopen(fn, "re")))
+ return -errno;
+
+ if (!(fgets(t, sizeof(t), f))) {
+ r = -errno;
+ goto finish;
+ }
+
+ if (!(c = strdup(t))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ *line = c;
+ r = 0;
+
+finish:
+ fclose(f);
+ return r;
+}
+
+char *strappend(const char *s, const char *suffix) {
+ size_t a, b;
+ char *r;
+
+ assert(s);
+ assert(suffix);
+
+ a = strlen(s);
+ b = strlen(suffix);
+
+ if (!(r = new(char, a+b+1)))
+ return NULL;
+
+ memcpy(r, s, a);
+ memcpy(r+a, suffix, b);
+ r[a+b] = 0;
+
+ return r;
+}
~ianmdlvl / elogind.git / blobdiff