206 lines
4.3 KiB
C
206 lines
4.3 KiB
C
/*
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MUST OPEN THIS FILE
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___________________
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14 mai 2007: ya un frameworque de test pour ces trucs ?
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*/
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <string.h>
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#include <stdlib.h>
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#ifdef NEED_ALLOCA_H
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#include <alloca.h>
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#endif
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#include "../tthimage.h"
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/*::------------------------------------------------------------------::*/
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/*
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* parameter 'type' is reserved, and must be 0 for now.
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* return value is -2 whe the file can't be opened.
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*/
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int Image_must_open(char *filename, int mode, int type)
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{
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int fd;
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char *path, *tmp;
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int l1, l2;
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if (type != 0)
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{
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fprintf(stderr, "Image must Open: type (%d) must be 0\n", type);
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}
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if ( (fd=open(filename, mode)) >= 0)
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{
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return fd;
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}
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if ( (path=getenv(ENV_LIBIMAGE_PATH)) != NULL)
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{
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#if DEBUG_LEVEL > 1
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fprintf(stderr, "LIBIMAGE_PATH is '%s'\n", path);
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#endif
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l1 = strlen(path);
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l2 = strlen(filename);
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if ( (tmp=alloca(l1+l2+5)) == NULL )
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{
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fprintf(stderr, "%s : no more mem available\n", __func__);
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exit(5);
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}
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strcpy(tmp, path);
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if ( path[l1-1] != '/' ) strcat(tmp, "/");
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strcat(tmp, filename);
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#if DEBUG_LEVEL > 1
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fprintf(stderr, "Image must Open: --> '%s'\n", tmp);
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#endif
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if ( (fd=open(tmp, mode)) > 0 )
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{
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#if DEBUG_LEVEL > 1
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fprintf(stderr, "found at '%s'\n", tmp);
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#endif
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return fd;
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}
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}
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/*
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Ahem, trying with the hardcoded path to shared file
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of libtthimage. Hop this help.
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*/
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path = SHAREDIR "/"; /* don't forget the trailing '/' */
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#if DEBUG_LEVEL > 1
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fprintf(stderr, "*** trying standard place '%s'\n", path);
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#endif
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l1 = strlen(path);
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l2 = strlen(filename);
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if ( (tmp=alloca(l1+l2+5)) == NULL )
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{
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fprintf(stderr, "Image must Open: KatasTroph on 'share'\n");
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exit(5);
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}
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strcpy(tmp, path);
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strcat(tmp, filename);
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#if DEBUG_LEVEL > 1
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fprintf(stderr, "Image must Open: --> %s\n", tmp);
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#endif
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if ( (fd=open(tmp, mode)) > 0 )
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{
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#if DEBUG_LEVEL > 1
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fprintf(stderr, "found at '%s'\n", tmp);
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#endif
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return fd;
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}
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#if DEBUG_LEVEL
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fprintf(stderr, "Image must Open: file '%s' not found, sorry...\n", filename);
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#endif
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return -2; /* mmm, a magic number ? */
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}
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/*::------------------------------------------------------------------::*/
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/*
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* parameter 'type' is reserved, and must be 0 for now.
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*/
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FILE * Image_must_fopen(char *filename, char *mode, int type)
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{
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FILE *fp;
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char *path, *tmp;
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int l1, l2;
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/* filter for the reserved parameter */
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if (type != 0)
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{
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fprintf(stderr, "Image_must_fopen: type (%d) must be 0\n", type);
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}
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if ( (fp=fopen(filename, mode)) != NULL )
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{
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#if DEBUG_LEVEL > 1
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fprintf(stderr, "Image_must_fopen: found '%s' in current dir.\n",
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filename);
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#endif
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return fp;
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}
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#if DEBUG_LEVEL > 1
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fprintf(stderr, "%s: searching for '%s'\n", __func__, filename);
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#endif
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if ( (path=getenv(ENV_LIBIMAGE_PATH))!=NULL)
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{
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#if DEBUG_LEVEL > 1
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fprintf(stderr, "LIBIMAGE_PATH is '%s'\n", path);
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#endif
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l1 = strlen(path);
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l2 = strlen(filename);
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if ( (tmp=alloca(l1+l2+5)) == NULL )
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{
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fprintf(stderr, "Image must fopen: KatasTroph\n");
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exit(5);
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}
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strcpy(tmp, path);
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if ( path[l1-1] != '/' ) strcat(tmp, "/");
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strcat(tmp, filename);
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#if DEBUG_LEVEL > 1
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fprintf(stderr, "Image must fopen: --> '%s'\n", tmp);
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#endif
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if ( (fp=fopen(tmp, mode)) != NULL )
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{
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#if DEBUG_LEVEL > 1
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fprintf(stderr, "found at '%s'\n", tmp);
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#endif
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return fp;
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}
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}
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#if DEBUG_LEVEL > 1
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else
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{
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fprintf(stderr, "Image must fopen: LIBIMAGE_PATH is not set ?\n");
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}
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#endif
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/*
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* Ahem, trying with the hardcoded path to shared file
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* of libtthimage. Hope this help.
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*/
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path = SHAREDIR "/"; /* don't forget the trailing '/' */
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#if DEBUG_LEVEL > 1
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fprintf(stderr, "* trying standard place '%s'\n", path);
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#endif
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l1 = strlen(path);
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l2 = strlen(filename);
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if ( (tmp=alloca(l1+l2+5)) == NULL )
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{
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fprintf(stderr, "Image must fopen: KatasTroph on 'share'\n");
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exit(5);
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}
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strcpy(tmp, path);
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strcat(tmp, filename);
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#if DEBUG_LEVEL > 1
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fprintf(stderr, "Image must fopen: -> %s\n", tmp);
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#endif
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if ( (fp=fopen(tmp, mode)) != NULL )
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{
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#if DEBUG_LEVEL > 1
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fprintf(stderr, "found at '%s'\n", tmp);
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#endif
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return fp;
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}
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#if DEBUG_LEVEL
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fprintf(stderr, "Image must fopen: file '%s' not found, sorry...\n", filename);
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#endif
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return NULL;
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}
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/*::------------------------------------------------------------------::*/
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/*::------------------------------------------------------------------::*/
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