CPU (Linux): fix var content was unexpectedly modified

Author: CarterLi

src/detection/cpu/cpu_linux.c

@@ -196,6 +196,7 @@ static void detectArmName(FFstrbuf* cpuinfo, FFCPUResult* cpu, uint32_t implId)
                 {
                     // https://github.com/Dr-Noob/cpufetch/issues/213#issuecomment-1927782105
                     ffStrbufSetStatic(&cpu->name, "Virtualized Apple Silicon");
+                    ffStrbufGetlineRestore(&line, &len, cpuinfo);
                     return;
                 }
                 name = applePartId2name(partId);
@@ -251,7 +252,10 @@ static const char* parseCpuInfo(
             && cpu->name.length > 0 // #1202 #1204
             #endif
         )
+        {
+            ffStrbufGetlineRestore(&line, &len, cpuinfo);
             break;
+        }
 
         (void)(
             // arm64 doesn't have "model name"; arm32 does have "model name" but its value is not useful.
@@ -520,6 +524,8 @@ const char* ffDetectCPUImpl(const FFCPUOptions* options, FFCPUResult* cpu)
     cpu->coresPhysical = (uint16_t) ffStrbufToUInt(&physicalCoresBuffer, cpu->coresLogical);
     #if __x86_64__ || __i386__
     cpu->packages = getPackageCount(&cpuinfo);
+    if (cpu->packages > 1)
+        cpu->coresPhysical *= cpu->packages;
     #endif
 
     // Ref https://github.com/fastfetch-cli/fastfetch/issues/1194#issuecomment-2295058252

src/util/FFstrbuf.c

@@ -570,6 +570,22 @@ bool ffStrbufGetline(char** lineptr, size_t* n, FFstrbuf* buffer)
     return true;
 }
 
+/// @brief Restore the end of a line that was modified by ffStrbufGetline.
+/// @warning This function should be called before breaking an ffStrbufGetline loop.
+void ffStrbufGetlineRestore(char** lineptr, size_t* n, FFstrbuf* buffer)
+{
+    assert(buffer && lineptr && n);
+    assert(buffer->allocated > 0 || (buffer->allocated == 0 && buffer->length == 0));
+    assert(!*lineptr || (*lineptr >= buffer->chars && *lineptr <= buffer->chars + buffer->length));
+
+    if (!*lineptr)
+        return;
+
+    *lineptr += *n;
+    if (*lineptr < buffer->chars + buffer->length)
+        **lineptr = '\n';
+}
+
 bool ffStrbufRemoveDupWhitespaces(FFstrbuf* strbuf)
 {
     if (strbuf->allocated == 0) return false; // Doesn't work with static strings

src/util/FFstrbuf.h

@@ -90,6 +90,7 @@ void ffStrbufUpperCase(FFstrbuf* strbuf);
 void ffStrbufLowerCase(FFstrbuf* strbuf);
 
 bool ffStrbufGetline(char** lineptr, size_t* n, FFstrbuf* buffer);
+void ffStrbufGetlineRestore(char** lineptr, size_t* n, FFstrbuf* buffer);
 bool ffStrbufRemoveDupWhitespaces(FFstrbuf* strbuf);
 
 FF_C_NODISCARD static inline FFstrbuf ffStrbufCreateA(uint32_t allocate)