#include "utf8.h"
#include "ctype.h"
-int write_string_to_file(FILE *f, const char *line) {
+int write_string_stream(FILE *f, const char *line) {
+ assert(f);
+ assert(line);
+
errno = 0;
+
fputs(line, f);
if (!endswith(line, "\n"))
fputc('\n', f);
if (!f)
return -errno;
- return write_string_to_file(f, line);
+ return write_string_stream(f, line);
}
int write_string_file_atomic(const char *fn, const char *line) {
return (ssize_t) l;
}
-int read_full_file(const char *fn, char **contents, size_t *size) {
- _cleanup_fclose_ FILE *f = NULL;
+int read_full_stream(FILE *f, char **contents, size_t *size) {
size_t n, l;
_cleanup_free_ char *buf = NULL;
struct stat st;
- assert(fn);
+ assert(f);
assert(contents);
- f = fopen(fn, "re");
- if (!f)
- return -errno;
-
if (fstat(fileno(f), &st) < 0)
return -errno;
- /* Safety check */
- if (st.st_size > 4*1024*1024)
- return -E2BIG;
+ n = LINE_MAX;
- n = st.st_size > 0 ? st.st_size : LINE_MAX;
- l = 0;
+ if (S_ISREG(st.st_mode)) {
+
+ /* Safety check */
+ if (st.st_size > 4*1024*1024)
+ return -E2BIG;
+
+ /* Start with the right file size, but be prepared for
+ * files from /proc which generally report a file size
+ * of 0 */
+ if (st.st_size > 0)
+ n = st.st_size;
+ }
+ l = 0;
for (;;) {
char *t;
size_t k;
return 0;
}
+int read_full_file(const char *fn, char **contents, size_t *size) {
+ _cleanup_fclose_ FILE *f = NULL;
+
+ assert(fn);
+ assert(contents);
+
+ f = fopen(fn, "re");
+ if (!f)
+ return -errno;
+
+ return read_full_stream(f, contents, size);
+}
+
static int parse_env_file_internal(
+ FILE *f,
const char *fname,
const char *newline,
int (*push) (const char *filename, unsigned line,
COMMENT_ESCAPE
} state = PRE_KEY;
- assert(fname);
assert(newline);
- r = read_full_file(fname, &contents, NULL);
+ if (f)
+ r = read_full_stream(f, &contents, NULL);
+ else
+ r = read_full_file(fname, &contents, NULL);
if (r < 0)
return r;
state = KEY;
last_key_whitespace = (size_t) -1;
- if (!greedy_realloc((void**) &key, &key_alloc, n_key+2)) {
+ if (!GREEDY_REALLOC(key, key_alloc, n_key+2)) {
r = -ENOMEM;
goto fail;
}
else if (last_key_whitespace == (size_t) -1)
last_key_whitespace = n_key;
- if (!greedy_realloc((void**) &key, &key_alloc, n_key+2)) {
+ if (!GREEDY_REALLOC(key, key_alloc, n_key+2)) {
r = -ENOMEM;
goto fail;
}
else if (!strchr(WHITESPACE, c)) {
state = VALUE;
- if (!greedy_realloc((void**) &value, &value_alloc, n_value+2)) {
+ if (!GREEDY_REALLOC(value, value_alloc, n_value+2)) {
r = -ENOMEM;
goto fail;
}
else if (last_value_whitespace == (size_t) -1)
last_value_whitespace = n_value;
- if (!greedy_realloc((void**) &value, &value_alloc, n_value+2)) {
+ if (!GREEDY_REALLOC(value, value_alloc, n_value+2)) {
r = -ENOMEM;
goto fail;
}
if (!strchr(newline, c)) {
/* Escaped newlines we eat up entirely */
- if (!greedy_realloc((void**) &value, &value_alloc, n_value+2)) {
+ if (!GREEDY_REALLOC(value, value_alloc, n_value+2)) {
r = -ENOMEM;
goto fail;
}
else if (c == '\\')
state = SINGLE_QUOTE_VALUE_ESCAPE;
else {
- if (!greedy_realloc((void**) &value, &value_alloc, n_value+2)) {
+ if (!GREEDY_REALLOC(value, value_alloc, n_value+2)) {
r = -ENOMEM;
goto fail;
}
state = SINGLE_QUOTE_VALUE;
if (!strchr(newline, c)) {
- if (!greedy_realloc((void**) &value, &value_alloc, n_value+2)) {
+ if (!GREEDY_REALLOC(value, value_alloc, n_value+2)) {
r = -ENOMEM;
goto fail;
}
else if (c == '\\')
state = DOUBLE_QUOTE_VALUE_ESCAPE;
else {
- if (!greedy_realloc((void**) &value, &value_alloc, n_value+2)) {
+ if (!GREEDY_REALLOC(value, value_alloc, n_value+2)) {
r = -ENOMEM;
goto fail;
}
state = DOUBLE_QUOTE_VALUE;
if (!strchr(newline, c)) {
- if (!greedy_realloc((void**) &value, &value_alloc, n_value+2)) {
+ if (!GREEDY_REALLOC(value, value_alloc, n_value+2)) {
r = -ENOMEM;
goto fail;
}
return r;
}
-static int parse_env_file_push(const char *filename, unsigned line,
- const char *key, char *value, void *userdata) {
+static int parse_env_file_push(
+ const char *filename, unsigned line,
+ const char *key, char *value,
+ void *userdata) {
const char *k;
va_list aq, *ap = userdata;
if (!utf8_is_valid(key)) {
- _cleanup_free_ char *p = utf8_escape_invalid(key);
+ _cleanup_free_ char *p;
- log_error("%s:%u: invalid UTF-8 in key '%s', ignoring.",
- filename, line, p);
+ p = utf8_escape_invalid(key);
+ log_error("%s:%u: invalid UTF-8 in key '%s', ignoring.", strna(filename), line, p);
return -EINVAL;
}
if (value && !utf8_is_valid(value)) {
- _cleanup_free_ char *p = utf8_escape_invalid(value);
+ _cleanup_free_ char *p;
- log_error("%s:%u: invalid UTF-8 value for key %s: '%s', ignoring.",
- filename, line, key, p);
+ p = utf8_escape_invalid(value);
+ log_error("%s:%u: invalid UTF-8 value for key %s: '%s', ignoring.", strna(filename), line, key, p);
return -EINVAL;
}
va_end(aq);
free(value);
+
return 0;
}
newline = NEWLINE;
va_start(ap, newline);
- r = parse_env_file_internal(fname, newline, parse_env_file_push, &ap);
+ r = parse_env_file_internal(NULL, fname, newline, parse_env_file_push, &ap);
va_end(ap);
return r;
}
-static int load_env_file_push(const char *filename, unsigned line,
- const char *key, char *value, void *userdata) {
+static int load_env_file_push(
+ const char *filename, unsigned line,
+ const char *key, char *value,
+ void *userdata) {
char ***m = userdata;
char *p;
int r;
if (!utf8_is_valid(key)) {
- log_error("%s:%u: invalid UTF-8 for key '%s', ignoring.",
- filename, line, key);
+ _cleanup_free_ char *t = utf8_escape_invalid(key);
+
+ log_error("%s:%u: invalid UTF-8 for key '%s', ignoring.", strna(filename), line, t);
return -EINVAL;
}
if (value && !utf8_is_valid(value)) {
- /* FIXME: filter UTF-8 */
- log_error("%s:%u: invalid UTF-8 value for key %s: '%s', ignoring.",
- filename, line, key, value);
+ _cleanup_free_ char *t = utf8_escape_invalid(value);
+
+ log_error("%s:%u: invalid UTF-8 value for key %s: '%s', ignoring.", strna(filename), line, key, t);
return -EINVAL;
}
if (!p)
return -ENOMEM;
- r = strv_push(m, p);
+ r = strv_consume(m, p);
+ if (r < 0)
+ return r;
+
+ free(value);
+ return 0;
+}
+
+int load_env_file(FILE *f, const char *fname, const char *newline, char ***rl) {
+ char **m = NULL;
+ int r;
+
+ if (!newline)
+ newline = NEWLINE;
+
+ r = parse_env_file_internal(f, fname, newline, load_env_file_push, &m);
if (r < 0) {
- free(p);
+ strv_free(m);
return r;
}
- free(value);
+ *rl = m;
return 0;
}
-int load_env_file(const char *fname, const char *newline, char ***rl) {
+static int load_env_file_push_pairs(
+ const char *filename, unsigned line,
+ const char *key, char *value,
+ void *userdata) {
+ char ***m = userdata;
+ int r;
+
+ if (!utf8_is_valid(key)) {
+ _cleanup_free_ char *t = utf8_escape_invalid(key);
+
+ log_error("%s:%u: invalid UTF-8 for key '%s', ignoring.", strna(filename), line, t);
+ return -EINVAL;
+ }
+
+ if (value && !utf8_is_valid(value)) {
+ _cleanup_free_ char *t = utf8_escape_invalid(value);
+
+ log_error("%s:%u: invalid UTF-8 value for key %s: '%s', ignoring.", strna(filename), line, key, t);
+ return -EINVAL;
+ }
+
+ r = strv_extend(m, key);
+ if (r < 0)
+ return -ENOMEM;
+
+ if (!value) {
+ r = strv_extend(m, "");
+ if (r < 0)
+ return -ENOMEM;
+ } else {
+ r = strv_push(m, value);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+int load_env_file_pairs(FILE *f, const char *fname, const char *newline, char ***rl) {
char **m = NULL;
int r;
if (!newline)
newline = NEWLINE;
- r = parse_env_file_internal(fname, newline, load_env_file_push, &m);
+ r = parse_env_file_internal(f, fname, newline, load_env_file_push_pairs, &m);
if (r < 0) {
strv_free(m);
return r;
p++;
fwrite(v, 1, p-v, f);
- if (string_has_cc(p) || chars_intersect(p, WHITESPACE "\'\"\\`$")) {
+ if (string_has_cc(p, NULL) || chars_intersect(p, WHITESPACE SHELL_NEED_QUOTES)) {
fputc('\"', f);
for (; *p; p++) {
- if (strchr("\'\"\\`$", *p))
+ if (strchr(SHELL_NEED_ESCAPE, *p))
fputc('\\', f);
fputc(*p, f);
}
int write_env_file(const char *fname, char **l) {
- char **i;
- _cleanup_free_ char *p = NULL;
_cleanup_fclose_ FILE *f = NULL;
+ _cleanup_free_ char *p = NULL;
+ char **i;
int r;
+ assert(fname);
+
r = fopen_temporary(fname, &f, &p);
if (r < 0)
return r;
fchmod_umask(fileno(f), 0644);
- errno = 0;
STRV_FOREACH(i, l)
write_env_var(f, *i);
- fflush(f);
+ r = fflush_and_check(f);
+ if (r >= 0) {
+ if (rename(p, fname) >= 0)
+ return 0;
- if (ferror(f))
- r = errno ? -errno : -EIO;
- else {
- if (rename(p, fname) < 0)
- r = -errno;
- else
- r = 0;
+ r = -errno;
}
- if (r < 0)
- unlink(p);
-
+ unlink(p);
return r;
}
int executable_is_script(const char *path, char **interpreter) {
int r;
- char _cleanup_free_ *line = NULL;
+ _cleanup_free_ char *line = NULL;
int len;
char *ans;
~ianmdlvl / elogind.git / blobdiff