ali@0: #include <stdlib.h>
ali@0: #include <string.h>
ali@0: #include <unistd.h>
ali@0: #include <gclib/mem.h>
ali@0: #include <gclib/strfuncs.h>
ali@0: #include <gclib/utils.h>
ali@0: 
ali@0: #define is_valid_drive(d)	((d)>='a' && (d)<='z' || (d)>='A' && (d)<='Z')
ali@0: 
ali@0: /*
ali@0:  * Gets the last component of the filename. If filename ends with a directory
ali@0:  * separator it gets the component before the last slash. If filename consists
ali@0:  * only of directory separators (and on Windows, possibly a drive letter), a
ali@0:  * single separator is returned. If filename is empty, it gets ".".
ali@0:  */
ali@0: char *path_get_basename(const char *filename)
ali@0: {
ali@0:     ssize_t base,last_nonslash;
ali@0:     size_t len;
ali@0:     char *retval;
ali@0:     if (*filename=='\0')
ali@0:         return str_dup(".");
ali@0:     last_nonslash=strlen(filename)-1;
ali@0:     while (last_nonslash>=0 && GC_IS_DIR_SEPARATOR(filename[last_nonslash]))
ali@0: 	last_nonslash--;
ali@0:     if (last_nonslash<0)
ali@0: 	/* string only containing slashes */
ali@0:     return str_dup(GC_DIR_SEPARATOR_S);
ali@0: #ifdef WIN32
ali@0:     if (last_nonslash==1 && is_valid_drive(filename[0]) && filename[1]==':')
ali@0: 	/* string only containing slashes and a drive */
ali@0: 	return str_dup(GC_DIR_SEPARATOR_S);
ali@0: #endif
ali@0:     base=last_nonslash;
ali@0:     while (base>=0 && !GC_IS_DIR_SEPARATOR(filename[base]))
ali@0: 	base--;
ali@0: #ifdef WIN32
ali@0:     if (base==-1 && is_valid_drive(filename[0]) && filename[1] == ':')
ali@0: 	  base=1;
ali@0: #endif
ali@0:     len=last_nonslash-base;
ali@0:     retval=mem_alloc(len+1,1);
ali@0:     memcpy(retval,filename+base+1,len);
ali@0:     retval[len]='\0';
ali@0:     return retval;
ali@0: }