diff options
author | Daniel Stenberg <daniel@haxx.se> | 2004-10-06 07:50:18 +0000 |
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committer | Daniel Stenberg <daniel@haxx.se> | 2004-10-06 07:50:18 +0000 |
commit | 39af394a1c3ae1d8ac71ad263a7c524988702c2e (patch) | |
tree | 4ba44670440d52ff6c3b07fdef35ae3384f3dc5a /docs/examples/fopen.c | |
parent | 5c7dcc6c33bb9e9621cf09ada4a15f310cf1c0e0 (diff) | |
download | curl-39af394a1c3ae1d8ac71ad263a7c524988702c2e.tar.gz |
removed tabs and trailing whitespace from source
Diffstat (limited to 'docs/examples/fopen.c')
-rw-r--r-- | docs/examples/fopen.c | 396 |
1 files changed, 198 insertions, 198 deletions
diff --git a/docs/examples/fopen.c b/docs/examples/fopen.c index eb5501628..88729e72d 100644 --- a/docs/examples/fopen.c +++ b/docs/examples/fopen.c @@ -55,16 +55,16 @@ enum fcurl_type_e { CFTYPE_NONE=0, CFTYPE_FILE=1, CFTYPE_CURL=2 }; struct fcurl_data { - enum fcurl_type_e type; /* type of handle */ + enum fcurl_type_e type; /* type of handle */ union { - CURL *curl; - FILE *file; - } handle; /* handle */ - - char *buffer; /* buffer to store cached data*/ - int buffer_len; /* currently allocated buffers length */ - int buffer_pos; /* end of data in buffer*/ - int still_running; /* Is background url fetch still in progress */ + CURL *curl; + FILE *file; + } handle; /* handle */ + + char *buffer; /* buffer to store cached data*/ + int buffer_len; /* currently allocated buffers length */ + int buffer_pos; /* end of data in buffer*/ + int still_running; /* Is background url fetch still in progress */ }; typedef struct fcurl_data URL_FILE; @@ -83,9 +83,9 @@ CURLM *multi_handle; /* curl calls this routine to get more data */ static size_t write_callback(char *buffer, - size_t size, - size_t nitems, - void *userp) + size_t size, + size_t nitems, + void *userp) { char *newbuff; int rembuff; @@ -97,21 +97,21 @@ write_callback(char *buffer, if(size > rembuff) { - //not enuf space in buffer - newbuff=realloc(url->buffer,url->buffer_len + (size - rembuff)); - if(newbuff==NULL) - { - fprintf(stderr,"callback buffer grow failed\n"); - size=rembuff; - } - else - { - /* realloc suceeded increase buffer size*/ - url->buffer_len+=size - rembuff; - url->buffer=newbuff; - - /*printf("Callback buffer grown to %d bytes\n",url->buffer_len);*/ - } + //not enuf space in buffer + newbuff=realloc(url->buffer,url->buffer_len + (size - rembuff)); + if(newbuff==NULL) + { + fprintf(stderr,"callback buffer grow failed\n"); + size=rembuff; + } + else + { + /* realloc suceeded increase buffer size*/ + url->buffer_len+=size - rembuff; + url->buffer=newbuff; + + /*printf("Callback buffer grown to %d bytes\n",url->buffer_len);*/ + } } memcpy(&url->buffer[url->buffer_pos], buffer, size); @@ -137,42 +137,42 @@ curl_fill_buffer(URL_FILE *file,int want,int waittime) * doesnt exceed required size already */ if((!file->still_running) || (file->buffer_pos > want)) - return 0; + return 0; /* attempt to fill buffer */ do { - FD_ZERO(&fdread); - FD_ZERO(&fdwrite); - FD_ZERO(&fdexcep); + FD_ZERO(&fdread); + FD_ZERO(&fdwrite); + FD_ZERO(&fdexcep); - /* set a suitable timeout to fail on */ - timeout.tv_sec = 60; /* 1 minute */ - timeout.tv_usec = 0; + /* set a suitable timeout to fail on */ + timeout.tv_sec = 60; /* 1 minute */ + timeout.tv_usec = 0; - /* get file descriptors from the transfers */ - curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd); + /* get file descriptors from the transfers */ + curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd); - rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout); + rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout); - switch(rc) { - case -1: - /* select error */ - break; + switch(rc) { + case -1: + /* select error */ + break; - case 0: - break; + case 0: + break; - default: - /* timeout or readable/writable sockets */ - /* note we *could* be more efficient and not wait for - * CURLM_CALL_MULTI_PERFORM to clear here and check it on re-entry - * but that gets messy */ - while(curl_multi_perform(multi_handle, &file->still_running) == - CURLM_CALL_MULTI_PERFORM); + default: + /* timeout or readable/writable sockets */ + /* note we *could* be more efficient and not wait for + * CURLM_CALL_MULTI_PERFORM to clear here and check it on re-entry + * but that gets messy */ + while(curl_multi_perform(multi_handle, &file->still_running) == + CURLM_CALL_MULTI_PERFORM); - break; - } + break; + } } while(file->still_running && (file->buffer_pos < want)); return 1; } @@ -184,22 +184,22 @@ curl_use_buffer(URL_FILE *file,int want) /* sort out buffer */ if((file->buffer_pos - want) <=0) { - /* ditch buffer - write will recreate */ - if(file->buffer) - free(file->buffer); + /* ditch buffer - write will recreate */ + if(file->buffer) + free(file->buffer); - file->buffer=NULL; - file->buffer_pos=0; - file->buffer_len=0; + file->buffer=NULL; + file->buffer_pos=0; + file->buffer_len=0; } else { - /* move rest down make it available for later */ - memmove(file->buffer, - &file->buffer[want], - (file->buffer_pos - want)); + /* move rest down make it available for later */ + memmove(file->buffer, + &file->buffer[want], + (file->buffer_pos - want)); - file->buffer_pos -= want; + file->buffer_pos -= want; } return 0; } @@ -217,47 +217,47 @@ url_fopen(char *url,const char *operation) file = (URL_FILE *)malloc(sizeof(URL_FILE)); if(!file) - return NULL; + return NULL; memset(file, 0, sizeof(URL_FILE)); if((file->handle.file=fopen(url,operation))) { - file->type = CFTYPE_FILE; /* marked as URL */ + file->type = CFTYPE_FILE; /* marked as URL */ } else { - file->type = CFTYPE_CURL; /* marked as URL */ - file->handle.curl = curl_easy_init(); + file->type = CFTYPE_CURL; /* marked as URL */ + file->handle.curl = curl_easy_init(); - curl_easy_setopt(file->handle.curl, CURLOPT_URL, url); - curl_easy_setopt(file->handle.curl, CURLOPT_WRITEDATA, file); - curl_easy_setopt(file->handle.curl, CURLOPT_VERBOSE, FALSE); - curl_easy_setopt(file->handle.curl, CURLOPT_WRITEFUNCTION, write_callback); + curl_easy_setopt(file->handle.curl, CURLOPT_URL, url); + curl_easy_setopt(file->handle.curl, CURLOPT_WRITEDATA, file); + curl_easy_setopt(file->handle.curl, CURLOPT_VERBOSE, FALSE); + curl_easy_setopt(file->handle.curl, CURLOPT_WRITEFUNCTION, write_callback); - if(!multi_handle) - multi_handle = curl_multi_init(); + if(!multi_handle) + multi_handle = curl_multi_init(); - curl_multi_add_handle(multi_handle, file->handle.curl); + curl_multi_add_handle(multi_handle, file->handle.curl); - /* lets start the fetch */ - while(curl_multi_perform(multi_handle, &file->still_running) == - CURLM_CALL_MULTI_PERFORM ); + /* lets start the fetch */ + while(curl_multi_perform(multi_handle, &file->still_running) == + CURLM_CALL_MULTI_PERFORM ); - if((file->buffer_pos == 0) && (!file->still_running)) - { - /* if still_running is 0 now, we should return NULL */ + if((file->buffer_pos == 0) && (!file->still_running)) + { + /* if still_running is 0 now, we should return NULL */ - /* make sure the easy handle is not in the multi handle anymore */ - curl_multi_remove_handle(multi_handle, file->handle.curl); + /* make sure the easy handle is not in the multi handle anymore */ + curl_multi_remove_handle(multi_handle, file->handle.curl); - /* cleanup */ - curl_easy_cleanup(file->handle.curl); + /* cleanup */ + curl_easy_cleanup(file->handle.curl); - free(file); + free(file); - file = NULL; - } + file = NULL; + } } return file; } @@ -270,26 +270,26 @@ url_fclose(URL_FILE *file) switch(file->type) { case CFTYPE_FILE: - ret=fclose(file->handle.file); /* passthrough */ - break; + ret=fclose(file->handle.file); /* passthrough */ + break; case CFTYPE_CURL: - /* make sure the easy handle is not in the multi handle anymore */ - curl_multi_remove_handle(multi_handle, file->handle.curl); + /* make sure the easy handle is not in the multi handle anymore */ + curl_multi_remove_handle(multi_handle, file->handle.curl); - /* cleanup */ - curl_easy_cleanup(file->handle.curl); - break; + /* cleanup */ + curl_easy_cleanup(file->handle.curl); + break; default: /* unknown or supported type - oh dear */ - ret=EOF; - errno=EBADF; - break; + ret=EOF; + errno=EBADF; + break; } if(file->buffer) - free(file->buffer);/* free any allocated buffer space */ + free(file->buffer);/* free any allocated buffer space */ free(file); @@ -304,17 +304,17 @@ url_feof(URL_FILE *file) switch(file->type) { case CFTYPE_FILE: - ret=feof(file->handle.file); - break; + ret=feof(file->handle.file); + break; case CFTYPE_CURL: - if((file->buffer_pos == 0) && (!file->still_running)) - ret = 1; - break; + if((file->buffer_pos == 0) && (!file->still_running)) + ret = 1; + break; default: /* unknown or supported type - oh dear */ - ret=-1; - errno=EBADF; - break; + ret=-1; + errno=EBADF; + break; } return ret; } @@ -327,38 +327,38 @@ url_fread(void *ptr, size_t size, size_t nmemb, URL_FILE *file) switch(file->type) { case CFTYPE_FILE: - want=fread(ptr,size,nmemb,file->handle.file); - break; + want=fread(ptr,size,nmemb,file->handle.file); + break; case CFTYPE_CURL: - want = nmemb * size; + want = nmemb * size; - curl_fill_buffer(file,want,1); + curl_fill_buffer(file,want,1); - /* check if theres data in the buffer - if not curl_fill_buffer() - * either errored or EOF */ - if(!file->buffer_pos) - return 0; + /* check if theres data in the buffer - if not curl_fill_buffer() + * either errored or EOF */ + if(!file->buffer_pos) + return 0; - /* ensure only available data is considered */ - if(file->buffer_pos < want) - want = file->buffer_pos; + /* ensure only available data is considered */ + if(file->buffer_pos < want) + want = file->buffer_pos; - /* xfer data to caller */ - memcpy(ptr, file->buffer, want); + /* xfer data to caller */ + memcpy(ptr, file->buffer, want); - curl_use_buffer(file,want); + curl_use_buffer(file,want); - want = want / size; /* number of items - nb correct op - checked - * with glibc code*/ + want = want / size; /* number of items - nb correct op - checked + * with glibc code*/ - /*printf("(fread) return %d bytes %d left\n", want,file->buffer_pos);*/ - break; + /*printf("(fread) return %d bytes %d left\n", want,file->buffer_pos);*/ + break; default: /* unknown or supported type - oh dear */ - want=0; - errno=EBADF; - break; + want=0; + errno=EBADF; + break; } return want; @@ -373,45 +373,45 @@ url_fgets(char *ptr, int size, URL_FILE *file) switch(file->type) { case CFTYPE_FILE: - ptr = fgets(ptr,size,file->handle.file); - break; + ptr = fgets(ptr,size,file->handle.file); + break; case CFTYPE_CURL: - curl_fill_buffer(file,want,1); + curl_fill_buffer(file,want,1); - /* check if theres data in the buffer - if not fill either errored or - * EOF */ - if(!file->buffer_pos) - return NULL; + /* check if theres data in the buffer - if not fill either errored or + * EOF */ + if(!file->buffer_pos) + return NULL; - /* ensure only available data is considered */ - if(file->buffer_pos < want) - want = file->buffer_pos; + /* ensure only available data is considered */ + if(file->buffer_pos < want) + want = file->buffer_pos; - /*buffer contains data */ - /* look for newline or eof */ - for(loop=0;loop < want;loop++) - { - if(file->buffer[loop] == '\n') - { - want=loop+1;/* include newline */ - break; - } - } + /*buffer contains data */ + /* look for newline or eof */ + for(loop=0;loop < want;loop++) + { + if(file->buffer[loop] == '\n') + { + want=loop+1;/* include newline */ + break; + } + } - /* xfer data to caller */ - memcpy(ptr, file->buffer, want); - ptr[want]=0;/* allways null terminate */ + /* xfer data to caller */ + memcpy(ptr, file->buffer, want); + ptr[want]=0;/* allways null terminate */ - curl_use_buffer(file,want); + curl_use_buffer(file,want); - /*printf("(fgets) return %d bytes %d left\n", want,file->buffer_pos);*/ - break; + /*printf("(fgets) return %d bytes %d left\n", want,file->buffer_pos);*/ + break; default: /* unknown or supported type - oh dear */ - ptr=NULL; - errno=EBADF; - break; + ptr=NULL; + errno=EBADF; + break; } return ptr;/*success */ @@ -423,28 +423,28 @@ url_rewind(URL_FILE *file) switch(file->type) { case CFTYPE_FILE: - rewind(file->handle.file); /* passthrough */ - break; + rewind(file->handle.file); /* passthrough */ + break; case CFTYPE_CURL: - /* halt transaction */ - curl_multi_remove_handle(multi_handle, file->handle.curl); + /* halt transaction */ + curl_multi_remove_handle(multi_handle, file->handle.curl); - /* restart */ - curl_multi_add_handle(multi_handle, file->handle.curl); + /* restart */ + curl_multi_add_handle(multi_handle, file->handle.curl); - /* ditch buffer - write will recreate - resets stream pos*/ - if(file->buffer) - free(file->buffer); + /* ditch buffer - write will recreate - resets stream pos*/ + if(file->buffer) + free(file->buffer); - file->buffer=NULL; - file->buffer_pos=0; - file->buffer_len=0; + file->buffer=NULL; + file->buffer_pos=0; + file->buffer_len=0; - break; + break; default: /* unknown or supported type - oh dear */ - break; + break; } @@ -466,33 +466,33 @@ main(int argc, char *argv[]) if(argc < 2) { - url="http://192.168.7.3/testfile";/* default to testurl */ + url="http://192.168.7.3/testfile";/* default to testurl */ } else { - url=argv[1];/* use passed url */ + url=argv[1];/* use passed url */ } /* copy from url line by line with fgets */ outf=fopen("fgets.test","w+"); if(!outf) { - perror("couldnt open fgets output file\n"); - return 1; + perror("couldnt open fgets output file\n"); + return 1; } handle = url_fopen(url, "r"); if(!handle) { - printf("couldn't url_fopen()\n"); - fclose(outf); - return 2; + printf("couldn't url_fopen()\n"); + fclose(outf); + return 2; } while(!url_feof(handle)) { - url_fgets(buffer,sizeof(buffer),handle); - fwrite(buffer,1,strlen(buffer),outf); + url_fgets(buffer,sizeof(buffer),handle); + fwrite(buffer,1,strlen(buffer),outf); } url_fclose(handle); @@ -504,20 +504,20 @@ main(int argc, char *argv[]) outf=fopen("fread.test","w+"); if(!outf) { - perror("couldnt open fread output file\n"); - return 1; + perror("couldnt open fread output file\n"); + return 1; } handle = url_fopen("testfile", "r"); if(!handle) { - printf("couldn't url_fopen()\n"); - fclose(outf); - return 2; + printf("couldn't url_fopen()\n"); + fclose(outf); + return 2; } do { - nread = url_fread(buffer, 1,sizeof(buffer), handle); - fwrite(buffer,1,nread,outf); + nread = url_fread(buffer, 1,sizeof(buffer), handle); + fwrite(buffer,1,nread,outf); } while(nread); url_fclose(handle); @@ -529,26 +529,26 @@ main(int argc, char *argv[]) outf=fopen("rewind.test","w+"); if(!outf) { - perror("couldnt open fread output file\n"); - return 1; + perror("couldnt open fread output file\n"); + return 1; } handle = url_fopen("testfile", "r"); if(!handle) { - printf("couldn't url_fopen()\n"); - fclose(outf); - return 2; + printf("couldn't url_fopen()\n"); + fclose(outf); + return 2; } - nread = url_fread(buffer, 1,sizeof(buffer), handle); - fwrite(buffer,1,nread,outf); - url_rewind(handle); + nread = url_fread(buffer, 1,sizeof(buffer), handle); + fwrite(buffer,1,nread,outf); + url_rewind(handle); - buffer[0]='\n'; - fwrite(buffer,1,1,outf); + buffer[0]='\n'; + fwrite(buffer,1,1,outf); - nread = url_fread(buffer, 1,sizeof(buffer), handle); - fwrite(buffer,1,nread,outf); + nread = url_fread(buffer, 1,sizeof(buffer), handle); + fwrite(buffer,1,nread,outf); url_fclose(handle); |