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Overview
| Comment: | Extra defensive coding in althttpd.c. |
|---|---|
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: | 2ae41f4427858f5ba6aae3410e7d5874 |
| User & Date: | drh 2019-02-16 16:42:33 |
Context
|
2019-02-18
| ||
| 15:22 | Clarification of the StrAppend() routine in althttpd.c. check-in: 90fe325e31 user: drh tags: trunk | |
|
2019-02-16
| ||
| 16:42 | Extra defensive coding in althttpd.c. check-in: 2ae41f4427 user: drh tags: trunk | |
| 15:41 | Enhancements to the althttpd.c SCGI mechanism: Added the "fallback:" and "relight:" lines to the *.scgi specification file format. check-in: 1c981267ee user: drh tags: trunk | |
Changes
Changes to misc/althttpd.c.
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*/
static char *GetFirstElement(char *zInput, char **zLeftOver){
char *zResult = 0;
if( zInput==0 ){
if( zLeftOver ) *zLeftOver = 0;
return 0;
}
while( isspace(*zInput) ){ zInput++; }
zResult = zInput;
while( *zInput && !isspace(*zInput) ){ zInput++; }
if( *zInput ){
*zInput = 0;
zInput++;
while( isspace(*zInput) ){ zInput++; }
}
if( zLeftOver ){ *zLeftOver = zInput; }
return zResult;
}
/*
** Make a copy of a string into memory obtained from malloc.
................................................................................
size_t nMalloc = 0; /* Bytes of space allocated to aRes */
char *aRes = 0; /* Payload */
int c; /* Next character from in */
char *z; /* Pointer to something inside of zLine */
char zLine[1000]; /* One line of reply from the CGI script */
if( useTimeout ) alarm(15);
while( fgets(zLine,sizeof(zLine),in) && !isspace(zLine[0]) ){
if( strncasecmp(zLine,"Location:",9)==0 ){
StartResponse("302 Redirect");
RemoveNewline(zLine);
z = &zLine[10];
while( isspace(*z) ){ z++; }
nOut += printf("Location: %s\r\n",z);
}else if( strncasecmp(zLine,"Status:",7)==0 ){
int i;
for(i=7; isspace(zLine[i]); i++){}
nOut += printf("%s %s", zProtocol, &zLine[i]);
strncpy(zReplyStatus, &zLine[i], 3);
zReplyStatus[3] = 0;
statusSent = 1;
}else{
/* 123456789 12345 */
if( strncasecmp(zLine, "Content-length:", 15)==0 ){
................................................................................
if( zHttpHost==0 || zHttpHost[0]==0 ){
NotFound(330); /* LOG: Missing HOST: parameter */
}else if( strlen(zHttpHost)+strlen(zRoot)+10 >= sizeof(zLine) ){
NotFound(340); /* LOG: HOST parameter too long */
}else{
sprintf(zLine, "%s/%s", zRoot, zHttpHost);
for(i=strlen(zRoot)+1; zLine[i] && zLine[i]!=':'; i++){
int c = zLine[i];
if( !isalnum(c) ){
zLine[i] = '_';
}else if( isupper(c) ){
zLine[i] = tolower(c);
}
}
strcpy(&zLine[i], ".website");
|
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*/
static char *GetFirstElement(char *zInput, char **zLeftOver){
char *zResult = 0;
if( zInput==0 ){
if( zLeftOver ) *zLeftOver = 0;
return 0;
}
while( isspace(*(unsigned char*)zInput) ){ zInput++; }
zResult = zInput;
while( *zInput && !isspace(*(unsigned char*)zInput) ){ zInput++; }
if( *zInput ){
*zInput = 0;
zInput++;
while( isspace(*(unsigned char*)zInput) ){ zInput++; }
}
if( zLeftOver ){ *zLeftOver = zInput; }
return zResult;
}
/*
** Make a copy of a string into memory obtained from malloc.
................................................................................
size_t nMalloc = 0; /* Bytes of space allocated to aRes */
char *aRes = 0; /* Payload */
int c; /* Next character from in */
char *z; /* Pointer to something inside of zLine */
char zLine[1000]; /* One line of reply from the CGI script */
if( useTimeout ) alarm(15);
while( fgets(zLine,sizeof(zLine),in) && !isspace((unsigned char)zLine[0]) ){
if( strncasecmp(zLine,"Location:",9)==0 ){
StartResponse("302 Redirect");
RemoveNewline(zLine);
z = &zLine[10];
while( isspace(*(unsigned char*)z) ){ z++; }
nOut += printf("Location: %s\r\n",z);
}else if( strncasecmp(zLine,"Status:",7)==0 ){
int i;
for(i=7; isspace((unsigned char)zLine[i]); i++){}
nOut += printf("%s %s", zProtocol, &zLine[i]);
strncpy(zReplyStatus, &zLine[i], 3);
zReplyStatus[3] = 0;
statusSent = 1;
}else{
/* 123456789 12345 */
if( strncasecmp(zLine, "Content-length:", 15)==0 ){
................................................................................
if( zHttpHost==0 || zHttpHost[0]==0 ){
NotFound(330); /* LOG: Missing HOST: parameter */
}else if( strlen(zHttpHost)+strlen(zRoot)+10 >= sizeof(zLine) ){
NotFound(340); /* LOG: HOST parameter too long */
}else{
sprintf(zLine, "%s/%s", zRoot, zHttpHost);
for(i=strlen(zRoot)+1; zLine[i] && zLine[i]!=':'; i++){
unsigned char c = (unsigned char)zLine[i];
if( !isalnum(c) ){
zLine[i] = '_';
}else if( isupper(c) ){
zLine[i] = tolower(c);
}
}
strcpy(&zLine[i], ".website");
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