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WINGs: Add copy_file() to libWUtil

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This is essentially the fetchFile() from wcolorpanel.c from the last
commit, but renamed to a better name.

This patch just adds the function to the lib. Nobody uses it yet.
This commit is contained in:
Carlos R. Mafra
2012-01-15 05:54:34 +00:00
parent 14643408e8
commit 7a180b0ef8
2 changed files with 59 additions and 0 deletions
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2
WINGs/WINGs/WUtil.h
View File

@@ -201,6 +201,8 @@ char* wfindfileinarray(WMPropList* array, char *file);
char* wexpandpath(char *path);
int copy_file(char *toPath, char *srcFile, char *destFile);
/* don't free the returned string */
char* wgethomedir(void);

57
WINGs/findfile.c
View File

@@ -22,7 +22,9 @@
#include "WUtil.h"
#include <sys/stat.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
@@ -33,6 +35,8 @@
#define PATH_MAX 1024
#endif
#define RETRY( x ) do { x; } while (errno == EINTR);
char *wgethomedir()
{
static char *home = NULL;
@@ -403,3 +407,56 @@ char *wfindfileinarray(WMPropList * array, char *file)
}
return NULL;
}
int copy_file(char *dir, char *src_file, char *dest_file)
{
FILE *src, *dst;
size_t nread, nwritten;
char *dstpath;
struct stat st;
char buf[4096];
/* only to a directory */
if (stat(dir, &st) != 0 || !S_ISDIR(st.st_mode))
return -1;
/* only copy files */
if (stat(src_file, &st) != 0 || !S_ISREG(st.st_mode))
return -1;
RETRY( src = fopen(src_file, "rb") )
if (src == NULL) {
werror(_("Could not open %s"), src_file);
return -1;
}
dstpath = wstrconcat(dir, dest_file);
RETRY( dst = fopen(dstpath, "wb") )
if (dst == NULL) {
werror(_("Could not create %s"), dstpath);
wfree(dstpath);
RETRY( fclose(src) )
return -1;
}
do {
RETRY( nread = fread(buf, 1, sizeof(buf), src) )
if (ferror(src))
break;
RETRY( nwritten = fwrite(buf, 1, nread, dst) )
if (ferror(dst) || feof(src) || nread != nwritten)
break;
} while (1);
if (ferror(src) || ferror(dst))
unlink(dstpath);
RETRY( fclose(src) )
fchmod(fileno(dst), st.st_mode);
fsync(fileno(dst));
RETRY( fclose(dst) )
wfree(dstpath);
return 0;
}