summaryrefslogtreecommitdiff
path: root/source3/lib/util_file.c
diff options
context:
space:
mode:
Diffstat (limited to 'source3/lib/util_file.c')
-rw-r--r--source3/lib/util_file.c492
1 files changed, 259 insertions, 233 deletions
diff --git a/source3/lib/util_file.c b/source3/lib/util_file.c
index bd505ac921..303d961df5 100644
--- a/source3/lib/util_file.c
+++ b/source3/lib/util_file.c
@@ -24,7 +24,6 @@
#define MAP_FAILED ((void *)-1)
#endif
-
static int gotalarm;
/***************************************************************
@@ -33,7 +32,7 @@ static int gotalarm;
static void gotalarm_sig(void)
{
- gotalarm = 1;
+ gotalarm = 1;
}
/***************************************************************
@@ -43,34 +42,33 @@ static void gotalarm_sig(void)
BOOL do_file_lock(int fd, int waitsecs, int type)
{
- SMB_STRUCT_FLOCK lock;
- int ret;
- void (*oldsig_handler)(int);
-
- gotalarm = 0;
- oldsig_handler = CatchSignal(SIGALRM, SIGNAL_CAST gotalarm_sig);
-
- lock.l_type = type;
- lock.l_whence = SEEK_SET;
- lock.l_start = 0;
- lock.l_len = 1;
- lock.l_pid = 0;
-
- alarm(waitsecs);
- /* Note we must *NOT* use sys_fcntl here ! JRA */
- ret = fcntl(fd, SMB_F_SETLKW, &lock);
- alarm(0);
- CatchSignal(SIGALRM, SIGNAL_CAST oldsig_handler);
-
- if (gotalarm) {
- DEBUG(0, ("do_file_lock: failed to %s file.\n",
- type == F_UNLCK ? "unlock" : "lock"));
- return False;
- }
-
- return (ret == 0);
-}
+ SMB_STRUCT_FLOCK lock;
+ int ret;
+ void (*oldsig_handler)(int);
+
+ gotalarm = 0;
+ oldsig_handler = CatchSignal(SIGALRM, SIGNAL_CAST gotalarm_sig);
+
+ lock.l_type = type;
+ lock.l_whence = SEEK_SET;
+ lock.l_start = 0;
+ lock.l_len = 1;
+ lock.l_pid = 0;
+
+ alarm(waitsecs);
+ /* Note we must *NOT* use sys_fcntl here ! JRA */
+ ret = fcntl(fd, SMB_F_SETLKW, &lock);
+ alarm(0);
+ CatchSignal(SIGALRM, SIGNAL_CAST oldsig_handler);
+
+ if (gotalarm) {
+ DEBUG(0, ("do_file_lock: failed to %s file.\n",
+ type == F_UNLCK ? "unlock" : "lock"));
+ return False;
+ }
+ return (ret == 0);
+}
/***************************************************************
Lock an fd. Abandon after waitsecs seconds.
@@ -78,21 +76,19 @@ BOOL do_file_lock(int fd, int waitsecs, int type)
BOOL file_lock(int fd, int type, int secs, int *plock_depth)
{
- if (fd < 0)
- return False;
+ if (fd < 0)
+ return False;
- (*plock_depth)++;
+ (*plock_depth)++;
- if ((*plock_depth) == 0)
- {
- if (!do_file_lock(fd, secs, type)) {
- DEBUG(10,("file_lock: locking file failed, error = %s.\n",
- strerror(errno)));
- return False;
- }
- }
+ if ((*plock_depth) == 0) {
+ if (!do_file_lock(fd, secs, type)) {
+ DEBUG(10,("file_lock: locking file failed, error = %s.\n", strerror(errno)));
+ return False;
+ }
+ }
- return True;
+ return True;
}
/***************************************************************
@@ -101,105 +97,107 @@ BOOL file_lock(int fd, int type, int secs, int *plock_depth)
BOOL file_unlock(int fd, int *plock_depth)
{
- BOOL ret=True;
+ BOOL ret=True;
- if(*plock_depth == 1)
- ret = do_file_lock(fd, 5, F_UNLCK);
+ if(*plock_depth == 1) {
+ ret = do_file_lock(fd, 5, F_UNLCK);
+ }
- (*plock_depth)--;
+ (*plock_depth)--;
- if(!ret)
- DEBUG(10,("file_unlock: unlocking file failed, error = %s.\n",
- strerror(errno)));
- return ret;
+ if(!ret) {
+ DEBUG(10,("file_unlock: unlocking file failed, error = %s.\n", strerror(errno)));
+ }
+ return ret;
}
/***************************************************************
- locks a file for enumeration / modification.
+ Locks a file for enumeration / modification.
update to be set = True if modification is required.
****************************************************************/
void *startfilepwent(char *pfile, char *s_readbuf, int bufsize,
int *file_lock_depth, BOOL update)
{
- FILE *fp = NULL;
+ FILE *fp = NULL;
- if (!*pfile)
- {
- DEBUG(0, ("startfilepwent: No file set\n"));
- return (NULL);
- }
- DEBUG(10, ("startfilepwent: opening file %s\n", pfile));
+ if (!*pfile) {
+ DEBUG(0, ("startfilepwent: No file set\n"));
+ return (NULL);
+ }
+ DEBUG(10, ("startfilepwent: opening file %s\n", pfile));
- fp = sys_fopen(pfile, update ? "r+b" : "rb");
+ fp = sys_fopen(pfile, update ? "r+b" : "rb");
- if (fp == NULL) {
- DEBUG(0, ("startfilepwent: unable to open file %s\n", pfile));
- return NULL;
- }
+ if (fp == NULL) {
+ DEBUG(0, ("startfilepwent: unable to open file %s\n", pfile));
+ return NULL;
+ }
- /* Set a buffer to do more efficient reads */
- setvbuf(fp, s_readbuf, _IOFBF, bufsize);
+ /* Set a buffer to do more efficient reads */
+ setvbuf(fp, s_readbuf, _IOFBF, bufsize);
- if (!file_lock(fileno(fp), (update ? F_WRLCK : F_RDLCK), 5, file_lock_depth))
- {
- DEBUG(0, ("startfilepwent: unable to lock file %s\n", pfile));
- fclose(fp);
- return NULL;
- }
+ if (!file_lock(fileno(fp), (update ? F_WRLCK : F_RDLCK), 5, file_lock_depth)) {
+ DEBUG(0, ("startfilepwent: unable to lock file %s\n", pfile));
+ fclose(fp);
+ return NULL;
+ }
- /* Make sure it is only rw by the owner */
- chmod(pfile, 0600);
+ /* Make sure it is only rw by the owner */
+ chmod(pfile, 0600);
- /* We have a lock on the file. */
- return (void *)fp;
+ /* We have a lock on the file. */
+ return (void *)fp;
}
/***************************************************************
End enumeration of the file.
****************************************************************/
+
void endfilepwent(void *vp, int *file_lock_depth)
{
- FILE *fp = (FILE *)vp;
+ FILE *fp = (FILE *)vp;
- file_unlock(fileno(fp), file_lock_depth);
- fclose(fp);
- DEBUG(7, ("endfilepwent: closed file.\n"));
+ file_unlock(fileno(fp), file_lock_depth);
+ fclose(fp);
+ DEBUG(7, ("endfilepwent: closed file.\n"));
}
/*************************************************************************
Return the current position in the file list as an SMB_BIG_UINT.
This must be treated as an opaque token.
*************************************************************************/
+
SMB_BIG_UINT getfilepwpos(void *vp)
{
- return (SMB_BIG_UINT)sys_ftell((FILE *)vp);
+ return (SMB_BIG_UINT)sys_ftell((FILE *)vp);
}
/*************************************************************************
Set the current position in the file list from an SMB_BIG_UINT.
This must be treated as an opaque token.
*************************************************************************/
+
BOOL setfilepwpos(void *vp, SMB_BIG_UINT tok)
{
- return !sys_fseek((FILE *)vp, (SMB_OFF_T)tok, SEEK_SET);
+ return !sys_fseek((FILE *)vp, (SMB_OFF_T)tok, SEEK_SET);
}
/*************************************************************************
- gets a line out of a file.
+ Gets a line out of a file.
line is of format "xxxx:xxxxxx:xxxxx:".
lines with "#" at the front are ignored.
*************************************************************************/
+
int getfileline(void *vp, char *linebuf, int linebuf_size)
{
/* Static buffers we will return. */
FILE *fp = (FILE *)vp;
unsigned char c;
unsigned char *p;
- size_t linebuf_len;
+ size_t linebuf_len;
- if (fp == NULL)
- {
+ if (fp == NULL) {
DEBUG(0,("getfileline: Bad file pointer.\n"));
return -1;
}
@@ -207,13 +205,11 @@ int getfileline(void *vp, char *linebuf, int linebuf_size)
/*
* Scan the file, a line at a time.
*/
- while (!feof(fp))
- {
+ while (!feof(fp)) {
linebuf[0] = '\0';
fgets(linebuf, linebuf_size, fp);
- if (ferror(fp))
- {
+ if (ferror(fp)) {
return -1;
}
@@ -223,47 +219,38 @@ int getfileline(void *vp, char *linebuf, int linebuf_size)
*/
linebuf_len = strlen(linebuf);
- if (linebuf_len == 0)
- {
+ if (linebuf_len == 0) {
linebuf[0] = '\0';
return 0;
}
- if (linebuf[linebuf_len - 1] != '\n')
- {
+ if (linebuf[linebuf_len - 1] != '\n') {
c = '\0';
- while (!ferror(fp) && !feof(fp))
- {
+ while (!ferror(fp) && !feof(fp)) {
c = fgetc(fp);
- if (c == '\n')
- {
+ if (c == '\n') {
break;
}
}
- }
- else
- {
+ } else {
linebuf[linebuf_len - 1] = '\0';
}
#ifdef DEBUG_PASSWORD
DEBUG(100, ("getfileline: got line |%s|\n", linebuf));
#endif
- if ((linebuf[0] == 0) && feof(fp))
- {
+ if ((linebuf[0] == 0) && feof(fp)) {
DEBUG(4, ("getfileline: end of file reached\n"));
return 0;
}
- if (linebuf[0] == '#' || linebuf[0] == '\0')
- {
+ if (linebuf[0] == '#' || linebuf[0] == '\0') {
DEBUG(6, ("getfileline: skipping comment or blank line\n"));
continue;
}
p = (unsigned char *) strchr_m(linebuf, ':');
- if (p == NULL)
- {
+ if (p == NULL) {
DEBUG(0, ("getfileline: malformed line entry (no :)\n"));
continue;
}
@@ -272,85 +259,89 @@ int getfileline(void *vp, char *linebuf, int linebuf_size)
return -1;
}
-
/****************************************************************************
-read a line from a file with possible \ continuation chars.
-Blanks at the start or end of a line are stripped.
-The string will be allocated if s2 is NULL
+ Read a line from a file with possible \ continuation chars.
+ Blanks at the start or end of a line are stripped.
+ The string will be allocated if s2 is NULL.
****************************************************************************/
+
char *fgets_slash(char *s2,int maxlen,XFILE *f)
{
- char *s=s2;
- int len = 0;
- int c;
- BOOL start_of_line = True;
-
- if (x_feof(f))
- return(NULL);
-
- if (maxlen <2) return(NULL);
-
- if (!s2)
- {
- maxlen = MIN(maxlen,8);
- s = (char *)malloc(maxlen);
- }
-
- if (!s) return(NULL);
-
- *s = 0;
-
- while (len < maxlen-1)
- {
- c = x_getc(f);
- switch (c)
- {
- case '\r':
- break;
- case '\n':
- while (len > 0 && s[len-1] == ' ')
- {
- s[--len] = 0;
- }
- if (len > 0 && s[len-1] == '\\')
- {
- s[--len] = 0;
- start_of_line = True;
- break;
- }
- return(s);
- case EOF:
- if (len <= 0 && !s2)
- SAFE_FREE(s);
- return(len>0?s:NULL);
- case ' ':
- if (start_of_line)
- break;
- default:
- start_of_line = False;
- s[len++] = c;
- s[len] = 0;
- }
- if (!s2 && len > maxlen-3)
- {
- char *t;
+ char *s=s2;
+ int len = 0;
+ int c;
+ BOOL start_of_line = True;
+
+ if (x_feof(f)) {
+ return(NULL);
+ }
+
+ if (maxlen <2) {
+ return(NULL);
+ }
+
+ if (!s2) {
+ maxlen = MIN(maxlen,8);
+ s = (char *)malloc(maxlen);
+ }
+
+ if (!s) {
+ return(NULL);
+ }
+
+ *s = 0;
+
+ while (len < maxlen-1) {
+ c = x_getc(f);
+ switch (c) {
+ case '\r':
+ break;
+ case '\n':
+ while (len > 0 && s[len-1] == ' ') {
+ s[--len] = 0;
+ }
+ if (len > 0 && s[len-1] == '\\') {
+ s[--len] = 0;
+ start_of_line = True;
+ break;
+ }
+ return(s);
+ case EOF:
+ if (len <= 0 && !s2) {
+ SAFE_FREE(s);
+ }
+ return(len>0?s:NULL);
+ case ' ':
+ if (start_of_line) {
+ break;
+ }
+ default:
+ start_of_line = False;
+ s[len++] = c;
+ s[len] = 0;
+ }
+
+ if (!s2 && len > maxlen-3) {
+ char *t;
- maxlen *= 2;
- t = (char *)Realloc(s,maxlen);
- if (!t) {
- DEBUG(0,("fgets_slash: failed to expand buffer!\n"));
- SAFE_FREE(s);
- return(NULL);
- } else s = t;
- }
- }
- return(s);
+ maxlen *= 2;
+ t = (char *)Realloc(s,maxlen);
+ if (!t) {
+ DEBUG(0,("fgets_slash: failed to expand buffer!\n"));
+ SAFE_FREE(s);
+ return(NULL);
+ } else {
+ s = t;
+ }
+ }
+ }
+ return(s);
}
-
/****************************************************************************
-load from a pipe into memory
+ Load from a pipe into memory.
****************************************************************************/
+
char *file_pload(char *syscmd, size_t *size)
{
int fd, n;
@@ -359,7 +350,9 @@ char *file_pload(char *syscmd, size_t *size)
size_t total;
fd = sys_popen(syscmd);
- if (fd == -1) return NULL;
+ if (fd == -1) {
+ return NULL;
+ }
p = NULL;
total = 0;
@@ -371,7 +364,9 @@ char *file_pload(char *syscmd, size_t *size)
close(fd);
SAFE_FREE(p);
return NULL;
- } else p = tp;
+ } else {
+ p = tp;
+ }
memcpy(p+total, buf, n);
total += n;
}
@@ -382,13 +377,15 @@ char *file_pload(char *syscmd, size_t *size)
* truncated. */
sys_pclose(fd);
- if (size) *size = total;
+ if (size) {
+ *size = total;
+ }
return p;
}
/****************************************************************************
-load a file into memory from a fd.
+ Load a file into memory from a fd.
****************************************************************************/
char *fd_load(int fd, size_t *size)
@@ -396,10 +393,14 @@ char *fd_load(int fd, size_t *size)
SMB_STRUCT_STAT sbuf;
char *p;
- if (sys_fstat(fd, &sbuf) != 0) return NULL;
+ if (sys_fstat(fd, &sbuf) != 0) {
+ return NULL;
+ }
p = (char *)malloc(sbuf.st_size+1);
- if (!p) return NULL;
+ if (!p) {
+ return NULL;
+ }
if (read(fd, p, sbuf.st_size) != sbuf.st_size) {
SAFE_FREE(p);
@@ -407,79 +408,85 @@ char *fd_load(int fd, size_t *size)
}
p[sbuf.st_size] = 0;
- if (size) *size = sbuf.st_size;
+ if (size) {
+ *size = sbuf.st_size;
+ }
return p;
}
/****************************************************************************
-load a file into memory
+ Load a file into memory.
****************************************************************************/
+
char *file_load(const char *fname, size_t *size)
{
int fd;
char *p;
- if (!fname || !*fname) return NULL;
+ if (!fname || !*fname) {
+ return NULL;
+ }
fd = open(fname,O_RDONLY);
- if (fd == -1) return NULL;
+ if (fd == -1) {
+ return NULL;
+ }
p = fd_load(fd, size);
-
close(fd);
-
return p;
}
-
/*******************************************************************
-mmap (if possible) or read a file
+ mmap (if possible) or read a file.
********************************************************************/
+
void *map_file(char *fname, size_t size)
{
size_t s2 = 0;
void *p = NULL;
#ifdef HAVE_MMAP
- if (lp_use_mmap()) {
- int fd;
- fd = open(fname, O_RDONLY, 0);
- if (fd == -1) {
- DEBUG(2,("Failed to load %s - %s\n", fname, strerror(errno)));
- return NULL;
- }
- p = mmap(NULL, size, PROT_READ, MAP_SHARED|MAP_FILE, fd, 0);
- close(fd);
- if (p == MAP_FAILED) {
- DEBUG(1,("Failed to mmap %s - %s\n", fname, strerror(errno)));
- return NULL;
- }
+ int fd;
+ fd = open(fname, O_RDONLY, 0);
+ if (fd == -1) {
+ DEBUG(2,("map_file: Failed to load %s - %s\n", fname, strerror(errno)));
+ return NULL;
+ }
+ p = mmap(NULL, size, PROT_READ, MAP_SHARED|MAP_FILE, fd, 0);
+ close(fd);
+ if (p == MAP_FAILED) {
+ DEBUG(1,("map_file: Failed to mmap %s - %s\n", fname, strerror(errno)));
+ return NULL;
}
#endif
if (!p) {
p = file_load(fname, &s2);
- if (!p) return NULL;
+ if (!p) {
+ return NULL;
+ }
if (s2 != size) {
- DEBUG(1,("incorrect size for %s - got %lu expected %lu\n",
+ DEBUG(1,("map_file: incorrect size for %s - got %lu expected %lu\n",
fname, (unsigned long)s2, (unsigned long)size));
- if (p) free(p);
+ SAFE_FREE(p);
return NULL;
}
}
-
return p;
}
-
/****************************************************************************
-parse a buffer into lines
+ Parse a buffer into lines.
****************************************************************************/
+
static char **file_lines_parse(char *p, size_t size, int *numlines)
{
int i;
char *s, **ret;
- if (!p) return NULL;
+ if (!p) {
+ return NULL;
+ }
for (s = p, i=0; s < p+size; s++) {
if (s[0] == '\n') i++;
@@ -491,7 +498,9 @@ static char **file_lines_parse(char *p, size_t size, int *numlines)
return NULL;
}
memset(ret, 0, sizeof(ret[0])*(i+2));
- if (numlines) *numlines = i;
+ if (numlines) {
+ *numlines = i;
+ }
ret[0] = p;
for (s = p, i=0; s < p+size; s++) {
@@ -500,75 +509,87 @@ static char **file_lines_parse(char *p, size_t size, int *numlines)
i++;
ret[i] = s+1;
}
- if (s[0] == '\r') s[0] = 0;
+ if (s[0] == '\r') {
+ s[0] = 0;
+ }
}
return ret;
}
-
/****************************************************************************
-load a file into memory and return an array of pointers to lines in the file
-must be freed with file_lines_free().
+ Load a file into memory and return an array of pointers to lines in the file
+ must be freed with file_lines_free().
****************************************************************************/
+
char **file_lines_load(const char *fname, int *numlines)
{
char *p;
size_t size;
p = file_load(fname, &size);
- if (!p) return NULL;
+ if (!p) {
+ return NULL;
+ }
return file_lines_parse(p, size, numlines);
}
/****************************************************************************
-load a fd into memory and return an array of pointers to lines in the file
-must be freed with file_lines_free(). If convert is true calls unix_to_dos on
-the list.
+ Load a fd into memory and return an array of pointers to lines in the file
+ must be freed with file_lines_free(). If convert is true calls unix_to_dos on
+ the list.
****************************************************************************/
+
char **fd_lines_load(int fd, int *numlines)
{
char *p;
size_t size;
p = fd_load(fd, &size);
- if (!p) return NULL;
+ if (!p) {
+ return NULL;
+ }
return file_lines_parse(p, size, numlines);
}
-
/****************************************************************************
-load a pipe into memory and return an array of pointers to lines in the data
-must be freed with file_lines_free().
+ Load a pipe into memory and return an array of pointers to lines in the data
+ must be freed with file_lines_free().
****************************************************************************/
+
char **file_lines_pload(char *syscmd, int *numlines)
{
char *p;
size_t size;
p = file_pload(syscmd, &size);
- if (!p) return NULL;
+ if (!p) {
+ return NULL;
+ }
return file_lines_parse(p, size, numlines);
}
/****************************************************************************
-free lines loaded with file_lines_load
+ Free lines loaded with file_lines_load.
****************************************************************************/
+
void file_lines_free(char **lines)
{
- if (!lines) return;
+ if (!lines) {
+ return;
+ }
SAFE_FREE(lines[0]);
SAFE_FREE(lines);
}
-
/****************************************************************************
-take a lislist of lines and modify them to produce a list where \ continues
-a line
+ Take a list of lines and modify them to produce a list where \ continues
+ a line.
****************************************************************************/
+
void file_lines_slashcont(char **lines)
{
int i, j;
@@ -579,8 +600,12 @@ void file_lines_slashcont(char **lines)
lines[i][len-1] = ' ';
if (lines[i+1]) {
char *p = &lines[i][len];
- while (p < lines[i+1]) *p++ = ' ';
- for (j = i+1; lines[j]; j++) lines[j] = lines[j+1];
+ while (p < lines[i+1]) {
+ *p++ = ' ';
+ }
+ for (j = i+1; lines[j]; j++) {
+ lines[j] = lines[j+1];
+ }
}
} else {
i++;
@@ -588,9 +613,10 @@ void file_lines_slashcont(char **lines)
}
}
-/*
- save a lump of data into a file. Mostly used for debugging
-*/
+/****************************************************************************
+ Save a lump of data into a file. Mostly used for debugging.
+****************************************************************************/
+
BOOL file_save(const char *fname, void *packet, size_t length)
{
int fd;
generated by cgit (git 2.34.1) at 2024-11-04 22:31:36 +0000